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Chapter 7: AT Commands and Registers

7-10

CSMIM-T1 Hardware Installation Guide

U

(Dial in Direct Mode) Placed anywhere in the dial string, causes
the modem to override current operating mode and dial in direct
mode for the current connection only.

V

(Dial in LAPM Mode with Fallback to MNP) Placed anywhere
in the dial string, causes the modem to override current operating
mode and dial in LAPM reliable mode with fallback to MNP for
the current connection only.

X

(Dial in Auto-Reliable Mode) Placed anywhere in the dial string,
causes the modem to override current operating mode and dial in
auto-reliable mode for the current connection only.

Y

(Dial in MNP Reliable Mode) Placed anywhere in the dial string,
causes the modem to override current operating mode and dial in
MNP reliable mode for the current connection only.

Z

(Dial in Normal Mode)
Placed anywhere in the dial string, causes the modem to override
the current operating mode and dial in normal mode for the
current connection only.

DL

Redial the Last Telephone Number Dialed

Redials the last telephone number that the modem dialed.

%D

n

Disconnect Buffer Delay

Where n is an integer from 0 to 255 representing seconds (Default
is 0).

Sets a delay during which the modem attempts to process data in
its transmit or receive buffer before disconnecting. When your
software lowers DTR or you type ATH <Enter> the modem
attempts for n seconds to empty its transmit buffer before
disconnecting. When carrier drops, it attempts for n seconds to
empty its receive buffer before disconnecting. If its buffers are
empty or if n=0, it disconnects without delay.

If a physical disconnect occurs (for example, the connection drops
from too many retransmissions in reliable mode), the modem can
process only the receive buffer. If the delay expires before the
modem empties its buffers or it is in command state at disconnect,
it may lose data.

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Содержание CSMIM-T1

Страница 1: ...M PORT STATUS 24 23 22 21 20 19 18 17 1 8 17 24 9 16 MODEM CONFIG STATUS TEST LOS SYNC RED BLU YEL NETWORK STATUS ALARMS ON LINE DROP INSERT INTERFACE T1 NETWORK INTERFACE DI SYNC ETHERNET STAT S U ATTN TRAF A B C SET UP CONSOLE CSMIM T1 HARDWARE INSTALLATION GUIDE ...

Страница 2: ......

Страница 3: ...S ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright April 1997 by Cabletron Systems Inc P O Box 5005 Rochester NH 03866 5005 All Rights Reserved Printed in the United States of America Order number 9032222 April 1997 MMAC and CSMIM T1 are trademarks of Cablet...

Страница 4: ...ercial environment This equipment uses generates and can radiate radio frequency energy and if not installed in accordance with the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modific...

Страница 5: ...ing tolerable parameters the telephone company can temporarily disconnect service although they will attempt to give you advance notice if possible 5 Under FCC Rules no customer is authorized to repair this equipment This restriction applies no matter whether the equipment is in or out of warranty 6 If the telephone company alters their equipment in a manner that will affect use of this device the...

Страница 6: ... or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularl...

Страница 7: ...OMPANYING WRITTEN MATERIALS AND ANY ACCOMPANYING HARDWARE 2 NO LIABILITY FOR CONSEQUENTIAL DAMAGES IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION SPECIAL INCIDENTAL CONSEQUENTIAL OR RELIANCE DAMAGES OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY...

Страница 8: ...viii CSMIM T1 Hardware Installation Guide ...

Страница 9: ...8 Telco Connection Information 1 10 1 8 1 Connecting the CSMIM T1 to a Full T 1 Line 1 10 1 8 2 Connecting the CSMIM T1 to a Fractional T 1 Line 1 11 1 9 Compatibility 1 12 1 10 CSMIM T1 Physical Statistical Information 1 12 CHAPTER 2 INSTALLING THE CSMIM T1 2 1 General 2 1 2 2 Locating the Ethernet Jumpers 2 2 2 2 1 Setting the Ethernet Jumpers 2 3 2 2 2 Setting the Subnet Jumper 2 3 2 3 Network ...

Страница 10: ...t 3 17 3 2 12 option_key 3 18 3 2 13 ping 3 18 3 2 14 ports 3 19 3 2 15 sequence 3 21 3 2 16 slip 3 22 3 2 17 stats 3 25 CHAPTER 4 CSMIM T1 PARAMETERS 4 1 General 4 1 4 2 T 1 Commands 4 1 4 3 T 1 Parameters 4 8 4 4 Parameter Descriptions 4 9 4 5 Set T 1 Parameters Example 4 13 CHAPTER 5 TROUBLESHOOTING PROCEDURES 5 1 General 5 1 5 2 Power Up and Boot Procedures 5 4 5 2 1 Normal Mode CSMIM T1 Diagn...

Страница 11: ... 6 6 4 Modulation Protocols 6 7 6 4 1 Protocol Configuration Command Settings 6 10 6 4 2 Speed and Protocol Connection Matrices 6 11 6 5 Error Correction 6 14 6 6 Diagnostics 6 16 6 6 1 Power Up Diagnostics 6 16 6 6 2 Local Analog Loopback with Self Test 6 16 6 6 3 Local Analog Loopback 6 17 6 6 4 Remote Digital Loopback with Self Test 6 17 6 6 5 Remote Digital Loopback 6 18 6 6 6 Local Digital Lo...

Страница 12: ...e of Contents xii CSMIM T1 Hardware Installation Guide APPENDIX A PORT PIN SIGNAL ALLOCATIONS A 1 General A 1 A 2 Console Port A 1 A 3 Interface Ports A 2 A 4 Additional Cabletron Cables and Connectors A 3 ...

Страница 13: ...ony technology Please note that this manual covers installation and initial configuration instructions only Software instructions are provided in the document set provided with the software package This guide provides instructions for installation and testing of the CSMIM T1 ROM monitor commands troubleshooting and diagnostic procedures are also provided 1 2 ORGANIZATION OF THIS DOCUMENT Chapter 1...

Страница 14: ...pendixA Port Pin SignalAllocations details the CSMIM T1 port pinouts and cabling information 1 3 DOCUMENT CONVENTIONS The following conventions are used throughout this document NOTE Note symbol Calls the reader s attention to any item of information that may be of special importance CAUTION Caution symbol Contains information essential to avoid damage to the equipment Electrical Hazard Warning sy...

Страница 15: ...work environment layout cable type etc Network load and frame size at the time of trouble if known The serial and revision numbers of all Cabletron Systems products in the network The device history i e have you returned the device before is this a recurring problem etc Any previous Return Material Authorization RMA numbers Phone 603 332 9400 Monday Friday 8 A M 8 P M Eastern Time CompuServe GO CT...

Страница 16: ...cation software A Console Port is used for system setup booting and diagnostic purposes After booting the Console Port is idle System boot is accomplished either from a UNIX host a VAX VMS host or an optional Flash PROM If you are operating from Flash only be aware that host based services such as security are not supported If you have any questions contact Cabletron Technical Support It should be...

Страница 17: ... the standard software package the CSMIM T1 software distribution includes a number of T 1 specific commands and parameters that are used for configuration and administration Refer to Chapter 4 CSMIM T1 Parameters for a description 1 6 CSMIM T1 FRONT PANEL The CSMIM T1 LED indicators provide the user with feedback on system activity Each port connector has an associated LED to indicate activity on...

Страница 18: ...nnector is used to connect a VT terminal and access the command set After booting the console port is inactive CSMIM T1 SN 1 2 3 4 5 6 7 8 CD TX RX 16 15 14 13 12 11 10 9 MODEM PORT STATUS 24 23 22 21 20 19 18 17 1 8 17 24 9 16 MODEM CONFIG STATUS TEST LOS SYNC RED BLU YEL NETWORK STATUS ALARMS ON LINE DROP INSERT INTERFACE T1 NETWORK INTERFACE DI SYNC ETHERNET STAT S U ATTN TRAF A B C SET UP CONS...

Страница 19: ...are When the module is in the RESET mode press and hold the SET UP button for 3 seconds the green LED will flash while the CSMIM T1 executes power up diagnostics Ethernet Channel Indicators There are three green LEDs that indicate the Ethernet channel A B or C that is selected by either the software or by jumper configuration 1 6 3 The SET UP Switch The SET UP Switch allows the user to change the ...

Страница 20: ...hen there is a Loss of Frame LOF synchronization An LOF condition causes the T 1 engine to transmit all unframed ones keep alive signal to the device attached to the Drop and Insert Interface ON LINE LED The green ON LINE LED is ON when the T 1 engine is connected to the network interface 1 6 5 NETWORK STATUS ALARMS TEST Network Test This red indicator is ON when the T 1 engine network interface i...

Страница 21: ...labeled 1 8 9 16 and 17 24 These LEDs indicate groups of modems installed When amber the LED indicates that at least one modem within the indicated group is in a fault condition When green the LED indicates that diagnostics have determined that the modems are operating normally 1 6 7 Modem Port Status LEDs Each modem has a group of three LEDs to indicate activity These LEDs can help determine a fa...

Страница 22: ...rridden by commands from the MMAC management module Jumper position and channel selection is explained in Chapter 2 Installing the CSMIM T1 1 8 TELCO CONNECTION INFORMATION There are different ways the CSMIM T1 can be set up It can use either a full T 1 line or a fractional one In either case there is specific information the user needs to get from and provide to the Telco providing the connection...

Страница 23: ... hub The line configuration information shown in Table 1 2 must be supplied by the service provider Table 1 2 Telco Configuration Information For more instructions on the T 1 setup please refer to the Annex Network Administrator s Guide for the CSMIM T1 Configuration Information Required by User Configuration Information Supplied by Service Provider Line Coding B8ZS or AMI Frame Type ESF or D4 Clo...

Страница 24: ...P 5 data compression MNP 10 data throughput enhancement to 14 4 Kbps Communication software compatible AT command set Built in TTL serial interface DTE to 115 2 Kbps Line quality monitoring and retrain NVRAM directory and stored profiles Flow control and speed buffering Automatic line speed selection in V FC and V 32bis V 32 Auto dial and auto answer Tone pulse and adaptive dialing Diagnostics 1 1...

Страница 25: ... to 40 C 41 to 104 F 5 to 90 RH noncondensing Non operating 30 to 73 C 22 to 164 F Approvals Safety This equipment meets the safety requirements of UL 1950 CSA C22 2 No 950 EN60950 IEC 950 and 73 23 EEC Electromagnetic Compatability This equipment meets the requirements of FCC Part 15 EN 55022 VCCI V 3 93 01 CSA C108 8 EN 50082 1 and 89 336 EEC Telecom FCC Part 68 Industry Canada CS 02 CS 03 ...

Страница 26: ...Chapter 1 INTRODUCTION 1 14 CSMIM T1 Hardware Installation Guide ...

Страница 27: ...lation of the CSMIM T1 into the MMAC chassis connecting devices performing power up and testing installing operational software and booting procedures To configure the CSMIM T1 you will need a cable and connector pinned out as shown in Appendix A for the Console Port and an ASCII terminal or terminal emulation software CAUTION The CSMIM T1 is sensitive to static discharge Follow static safety hand...

Страница 28: ... jumpers Please note that the jumpers are located on the Main Processor Board not the modem board Figure 2 1 CSMIM T1 Jumper Settings J12 Ethernet Jumper J12 Jumper Settings for operating on Ethernet A Jumper Settings for operating on Ethernet B factory setting Jumper Settings for operating on Ethernet C ETHERNET JUMPER SETTINGS SUBNET JUMPER SETTINGS Full Segment Normal Setting Sub Net Channels B...

Страница 29: ... on Channel A Place jumpers over the center pin and pin 3 in pin rows B and C To operate on Channel B Place one jumper over the center pin and pin 3 in pin row B and the other jumper over the center pin and pin 1 in pin row C To operate on Channel C Place one jumper over the center pin and pin 1 in pin row B and the other jumper over the center pin and pin 3 in pin row C 2 2 2 Setting the Subnet J...

Страница 30: ...a bypass mode when the MMAC hub is powered down reset or when the CSMIM T1 module is removed from the hub This jumper is labelled J24 and is located on the modem board just behind the T 1 Network Interface port See Figure 2 2 Figure 2 2 Network Bypass Jumper The jumper can be set to Network Loopback Mode default setting or Bypass Mode Please check your module to see that the jumper is configured i...

Страница 31: ...oning the CSMIM T1 next to any contiguous RIC MIMs or MIMs directly controlled by the hub managing device e g EMME EMM E6 etc This does not apply to shunting MMAC FNBs where the data path remains unbroken and allows non interrupted communication Install the CSMIM T1 into the MMAC FNB backplane as follows CAUTION In addition to J12 and J24 there are other jumpers on the module These are used for di...

Страница 32: ...w the module into the backplane Forcing a misaligned module into place can damage the CSMIM T1 or the MMAC backplane 5 Secure the module to the MMAC chassis by tightening the knurled knobs If you do not tighten the knurled knobs vibration can cause the module to lose contact with the backplane and disrupt your network 6 Replace Security Bars on MMAC chassis 7 Power up the MMAC Figure 2 3 Installin...

Страница 33: ...f the CSMIM T1 1 Connect the Console Terminal s I O connector to the RJ45 cable the accessory kit includes a cable using a DB 25 DTE drop adapter 2 Plug the RJ45 connector into the console port located on the front panel of the CSMIM T1 3 When the connector clicks into place the connection is secure Appendix A describes the console port s signal pin allocation 4 Turn on the Console Terminal and se...

Страница 34: ...sed to connect the CSMIM T1 to the T1 line The T1 Network Interface port is located on the front panel of the CSMIM T1 To connect to the T 1 network simply plug the RJ48C connector located on the T1 Network Interface Cable into the T1 Network Interface port located on the front panel of the CSMIM T1 When the connector clicks into place the connection is secure Appendix A describes the T1 Network I...

Страница 35: ...rn off except for the ON LINE LED and some status LEDs If the diagnostics complete successfully the CSMIM T1 either enters SET UP Mode and waits for configuration data to be entered or boots its operational image from Flash You can enter configuration information through a terminal connected to the console port The ROM monitor prompt monitor appears on the terminal If the ATTN and the STAT LEDs ar...

Страница 36: ...288X 288X 288X 288X 288X 288X Mod Status OK OK OK OK OK OK OK OK Port 13 14 15 16 17 18 23 24 T1 Slot Map N N N N N N N N Mod ID 288X 288X 288X 288X 288X 288X 288X 288X Mod Status OK OK OK OK OK OK OK OK To record the CSMIM T1 s Ethernet address for future reference at the monitor prompt type addr d and press the Return key The display looks like this monitor addr d Ethernet address hex 00 80 2D 0...

Страница 37: ... of the server and the name of the file to be loaded into memory RARP Reverse Address Resolution Protocol maps a hardware address into an Internet address The ROM invokes these methods of acquiring boot information when a boot is initiated and the CSMIM T1 s Internet Address is not initialized Under this condition the CSMIM T1 first tries to get boot information via BOOTP if BOOTP fails it tries t...

Страница 38: ...teway address vm is the Vendor Magic Cookie ht is host type 1 Ethernet ha is the CSMIM T1 s hardware address Ethernet Address ip is the CSMIM T1 s Internet Protocol Address When the CSMIM T1 receives a BOOTP response with the sm gw and ip set it sets the respective parameters subnet_mask load_dump_gateway and inet_addr Set vm to auto This indicates that bootpd should respond to the client CSMIM T1...

Страница 39: ...ation must be running on the same network because the CSMIM T1 only broadcasts BOOTP and RARP queries If BOOTP and RARP fail the CSMIM T1 transmits an IPX advertisement Request for Service and a MOP Multicast boot request If all requests fail the CSMIM T1 returns to the ROM monitor if in test mode or continues the auto initializing procedure indefinitely if in normal mode 2 8 SOFTWARE INSTALLATION...

Страница 40: ...INE LED if T 1 line is connected If the boot is unsuccessful the red ATTN LED will flash and a message will display on the monitor CAUTION If you are loading software for the first time on a new unit it is not necessary to erase the EEPROM To do so will erase the EFS Key information and you will have to reload it manually If you have not recorded the key information and erase the EEPROM you will h...

Страница 41: ...talled your optional Flash ROM the CSMIM T1 can be self booted You can check your CSMIM T1 configuration by entering the config command at the Monitor prompt The config command displays the current configuration information and revision levels If your device has Flash ROM installed the line FLASH PROM size will appear under the REVISION CONFIGURATION INFORMATION section This section contains a des...

Страница 42: ...r assistance If you have not stored the key value in a safe place and must contact Cabletron Customer Support do so before beginning this procedure 1 Telnet to the module 2 At the annex prompt run the stats o command to check the status of the module 3 Become Superuser At the annex prompt enter show ann opt_key This will show the current option key value in quotations 4 Enter the EFS value at the ...

Страница 43: ...defaults minimizes errors during the initial boot For example setting the parameter that defines the preferred load host enables the CSMIM T1 to load by requesting assistance from a specific host rather than by broadcasting that request to all hosts on the Ethernet You can define the same parameters using the Network Administrator na program as you can using the ROM Monitor ROM Monitor commands ge...

Страница 44: ...rt s baud rate erase Erases non volatile memory help or Display the list of ROM Monitor commands image d file Displays and or sets the load image and TFTP load dump names ipx d Sets IPX load dump file server lat_key d Sets LAT key mop d Sets MOP load dump address net Executes an Ethernet stand alone external loopback test option_key d Sets or displays the option key ping Sends ICMP ECHO_REQUEST ho...

Страница 45: ...oadcast The addr d command also displays the unit s ROM resident Ethernet address in hexadecimal notation see the CSMIM MicroCS Administrator s Guide for UNIX The command syntax is addr d If you enter the addr command without the d argument the console prompts you for each Internet address Enter Internet addresses using the standard decimal dot notation The addr d command displays the CSMIM T1 s E...

Страница 46: ...214 Enter Subnet mask 255 255 0 0 Enter Broadcast address 0 0 0 0 192 9 200 0 Broadcast address 192 9 200 0 Enter Preferred Load Host address any host 192 9 200 88 Preferred Load Host address 192 9 200 88 Enter Preferred Dump Host address 0 0 0 0 192 9 200 88 Preferred Dump Host address 192 9 200 88 Enter Load Dump Gateway address uninitialized 192 9 200 Load Dump Gateway address 192 9 200 88 Sele...

Страница 47: ...SMIM T1 uses only that address for broadcast If the value is all zeroes 0 0 0 0 the ROM Monitor tries various combinations of broadcast addresses and subnet or network broadcasts The CSMIM T1 broadcasts its request three times for each possible combination of broadcast addresses You can specify the IP encapsulation type as either ethernet for Ethernet or ieee802 for IEEE 802 2 802 3 The default IP...

Страница 48: ...ock received during the boot When the CSMIM T1 begins to boot it displays the load server host s IP address If the unit does not boot successfully after several attempts it displays a boot attempt failed message if the unit has opened the boot file and an error occurs during the boot process it displays a boot error report on the console and returns to the ROM Monitor The boot error report can hel...

Страница 49: ...sions 10 Reserved The lowest nibble bits 3 to 0 are a count of collisions during this transmission For example 8802 Complete Late collision 2 collisions 8841 Complete Late Collision SQE detected 1 collision The boot command display using bfs looks like this monitor boot Enter boot file name ip oper 56 enet mop OPER_56_ENET SYS Requesting default boot file OPER_56_ENET SYS for MOP VMS loads and ope...

Страница 50: ... memory copies the new image from non volatile memory to Flash memory and then executes the image monitor boot Enter boot file name ip oper 56 enet mop OPER_56_ENET SYS Requesting default boot file OPER_56_ENET SYS for MOP VMS loads and oper 56 enet for all other protocols Unanswered requests shown as transmission errors as Requesting boot from 192 9 200 88 via Ethernet Booting BFS file using open...

Страница 51: ...our image from Flash and will not be able to load a new one monitor boot l Enter boot file name ip oper 56 enet mop OPER_56_ENET SYS Requesting default boot file OPER_56_ENET SYS for MOP VMS loads and oper 56 enet for all other protocols Unanswered requests shown as transmission errors as Requesting boot from 192 9 200 88 via Ethernet Booting BFS file using open delay of 8 Booting from 192 9 200 8...

Страница 52: ...42 msec Header received OK Received data blocks shown as msec turnaround time 4 4 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 4 4 4 4 4 4 4 4 4 4 4 4 4 5 4 4 4 4 4 4 4 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 4 24 4 4 6 4 10 4 6 73 4 4 5 4 4 4 4 4 9 4 4 11 4 4 4 4 4 4 4 4 4 4 4 4 4 3 4 ...

Страница 53: ... command display contains information describing whether or not Flash ROM is installed The command syntax is config The config command display looks like this monitor config REVISION CONFIGURATION INFORMATION ROM Software Rev 0901 Board ID 56 Board Type Micro CS CPU Type 486SXLC2 Ethernet Address 00 80 2D 00 C6 1E Memory Size 4 Meg Flash Size 2 Meg Flash ID 8989 EEPROM Size 32736 Installed Alterna...

Страница 54: ... into test mode so the monitor prompt appears on the console Set the modem into auto answer mode NOTE This command has no effect on the port s baud rate after the CSMIM T1 is booted monitor console baud Remote Diagnostic Test Mode In order to use the remote diagnostic functionality you must first connect a modem to the console port of the Annex The modem should be configured such that DTR is force...

Страница 55: ...o restores the parameters to their factory defaults The syntax is erase If the self boot option is installed the erase command prompts for which non volatile memory to erase EEPROM or FLASH Entering 1 at the prompt causes the CSMIM T1 to erase the EEPROM memory configuration information entering 2 at the prompt causes the CSMIM T1 to erase the Flash memory self boot image The erase command display...

Страница 56: ... to its default enter a pair of double quote characters The default image name is oper 56 enet The image command display looks like this NOTE The erase command does not erase the Ethernet address Since the erase command erases the IP address you must use the addr command to re enter the CSMIM T1 s IP address before reloading any software monitor erase Erase all non volatile EEPROM memory y n n y E...

Страница 57: ...ly if the self boot image is loaded If the image file name contains more than 16 characters it is truncated when MOP is attempted monitor image d Image name Default ip oper 56 enet Default mop OPER_56_ENET SYS TFTP Load Directory TFTP Dump path filename dump 192 9 200 88 SELF image name oper 56 enet monitor ipx Enter IPX file server name uninitialized mars Enter Frame type 0 802 3 1 Ethernet II 2 ...

Страница 58: ... ROM monitor The command syntax is lat_key d The lat_key command display looks like this The lat_key d command displays the current LAT key setting NOTE The lat_key command is optional and may be purchased separately monitor ipx d IPX preferred load file server MARS IPX Frame type 802 3 IPX dump user name SUSANS IPX dump password SET IPX dump path name SYS user susans monitor lat_key Enter LAT_KEY...

Страница 59: ...thernet transceiver loopback test on the local area network The command syntax is net The net command display looks like this This transciever loopback test sends out a short test packet from the CSMIM T1 through the MicroMMAC to test the integrity of the network One of the Ethernet connections internal AUI or external connection must be valid for this test to pass monitor mop Enter preferred MOP ...

Страница 60: ...tings 3 2 13 ping The ping command sends an Internet Control Message Protocol ICMP mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway ECHO_REQUEST datagrams pings have an IP and ICMP header followed by a structured time value and an arbitrary number of pad bytes that fill out the packet The syntax for this command is ping host_ip_address data_size npackets The h...

Страница 61: ...h the data lines and the control lines for each serial port specified The syntax for this command is ports d Each serial port to be tested must be looped back with a loopback plug to test both the data lines and the control lines the accessory kit provides a loopback plug Connect this plug to the connector on the CSMIM T1 that corresponds to the port to be tested When invoked the command displays ...

Страница 62: ...rts with faulty Control Lines Ports with faulty Data Lines Enter port number or range of ports to test Return to exit 3 Enter the number of times to loop on this test 1 Testing data lines on channel 3 ERROR Data line loopback failure on port 3 Testing modem signals on channel 3 ERROR No RTS CTS turning ON loopback interrupt sensed on Chan 3 monitor ports d Individual Port Tests Data Lines Some imp...

Страница 63: ...s slnn where nn is a port number and specify self boot by selecting self Separate each interface with a comma or a space Enter the interface list as an argument to the command otherwise the console displays a list of available interfaces and prompts for a new list In the following example interfaces are assigned to the load dump sequence list Ports 12 14 and 15 can be added to the list because the...

Страница 64: ...e nn is the port number 3 2 16 slip The slip command defines a serial port as a Serial Line Internet Protocol SLIP interface This command defines a number of port parameters The command syntax is slip d port After entering the command you are prompted for each parameter The port is the number of the serial port to be configured with this command If you do not enter a port number you will be prompt...

Страница 65: ...f the remote end of the SLIP interface Enter remote load dump host address Specifies the IP address of the remote host to which load and dump requests are sent This address is required only if the remote host is a gateway and not the load host By default this is the same as the remote end point address Should this interface be used for memory dumps Enables the CSMIM T1 to use a SLIP interface for ...

Страница 66: ...nd completes normally monitor slip Line number 1 16 6 Allow SL IP on this port y n n y Local endpoint address 192 9 200 214 Enter subnet mask 255 255 255 0 Enter remote endpoint address 0 0 0 0 192 9 200 0 Remote endpoint address 192 9 200 0 Enter remote load dump host address default 192 9 200 88 Using remote endpoint address 192 9 200 88 Enter local endpoint address 0 0 0 0 192 9 200 214 Constru...

Страница 67: ...d Alignment Errors The number of frames received misaligned with a CRC error Resource Drops The number of packets dropped because the ROM code could not buffer them quickly enough The ROM code cannot always handle back to back incoming packets The CSMIM T1 accepts the first response it receives and drops all others Dropped packets are normal Bus Wait Drops The number of packets dropped due to wait...

Страница 68: ...ic on the Ethernet Clear to Send Losses The number of times packets could not be transmitted because the CSMIM T1 lost the Clear to Send signal usually the result of excessive traffic Collisions Detected The number of times the CSMIM T1 had to retry transmissions automatically usually the result of normal Ethernet traffic These retries do not cause the boot command to display Excessive Collision L...

Страница 69: ...nds are not available until after the unit has successfully booted The following sections describe the commands and parameters and Section 4 5 provides an example of how to use them 4 2 T 1 COMMANDS The CSMIM T1 software comes with the following new or enhanced commands Table 4 1 T1 related Commands Command Command Type Description stats T CLI Displays T 1 Network Interface statistics show admin n...

Страница 70: ...cs collected all Displays all ESF statistics interval _set Displays a specific ESF interval You can enter a single interval or a range of intervals from 1 to 96 Interval 1 is the most recent interval clear_alarm Clears the alarm condition saved in the history buffer annex stats T current alarm history no blue no red no yellow Fri July 28 16 48 37 1995 EDT Alarms no blue no red no yellow engine off...

Страница 71: ...r is also displayed Red Alarm When the Red Alarm is true the T 1 engine has detected loss of frame synchronization During this condition the T 1 interface is sending a Yellow Alarm to the network When the Red Alarm is false The T 1 engine is in frame synchronization and the sync indication is true The Red Alarm event saved in the history buffer is also displayed Yellow Alarm When the Yellow Alarm ...

Страница 72: ... release date xxxx This is the EPROM check sum DII Sync When DII Sync is true the Drop Insert Interface is receiving ones pulses and is in frame sync When DII Sync is false the Drop Insert Interface is out of frame sync or not receiving pulses and is sending AIS all ones framed Interval The 15 minute interval being displayed This is an integer from 1 to 96 current or total Number of Valid Seconds ...

Страница 73: ...d super framing ESF statistics This command is used to change the T 1 engine s parameter configuration The T 1 soft hard and esf keywords are described in Table 4 4 The syntax is reset t1 soft hard esf Errored Seconds An Errored Second is a second with one or more ESF error events that is one or more CRC error events or one or more Out of Frame OOFs Severely Errored Seconds A Severely Errored Seco...

Страница 74: ...eparated by commas or a range of numbers separated by a hyphen The valid modem number range is 1 to 24 inclusive Table 4 4 Keywords for the reset t1 Command Keyword Definition soft This setting reconfigures the software parameters and will only disrupt the service on the DS0 channels that are changed hard This setting resets the T 1 engine causing the T 1 Drop Insert interface and modem sessions t...

Страница 75: ... 5 Arguments for the T1_Loopback Command Argument Description None No loopback This is the default If the T1_loopback command is initiated with no parameters then none is assumed It cancels any user specified loopbacks Line Line loopback provides the network a means to test the T 1 circuit for single ended fault isolation The line loopback regenerates the DS1 signal and does not correct bipolar vi...

Страница 76: ...each DS0 channel t1_info Sets or displays a character string 128 bytes maximum of printable ASCII characters that describe installation information from the service provider tni_circuit_id Sets or displays the T 1 circuit identifier string 128 characters maximum required by the service provider for customer service calls tni_clock Sets or displays parameter setting as loop local or external These ...

Страница 77: ...on the T 1 circuit When bypass is set to N the T 1 engine is attached to both the T1NI and the T1DII The default is Y tni_line_code Sets or displays parameter setting as ami or b8zs These values represent the line code used on the T1 Network Interface tni_ones_density Sets or displays the T1 Network Interface ones density setting as on or off tdi_distance Sets or displays an integer from 0 to 655 ...

Страница 78: ...parameter Table 4 6 Options for the Map Parameter ring This T 1 parameter is used to provide the audible ring to the central office for incoming calls The default is Y and the audible ring is sent to the central office This parameter is used with wink_start and immediate_start protocols only Option Description map_val modem_number map_val These options map an interface to a modem The map_val optio...

Страница 79: ...defines the distance in feet of the cable that runs from the T1DII to the Private Branch Exchange PBX or other equipment The parameter setting is an integer from 1 to 655 The default setting is 0 tdi_framing This T 1 parameter controls which superframe format is used on the T1 Drop Insert Interface The parameter settings are d4 superframe and esf extended superframe The default setting is esf The ...

Страница 80: ...format is used on the T1 Network Interface Parameter settings include d4 superframe and esf extended superframe The default setting is esf The value for tni_framing may or may not be the same as tdi_framing tni_line_buildout This T 1 parameter sets the Line Build Out LBO value The Channel Service Unit CSU portion of the T1 Network Interface requires the administrator to configure a LBO value The s...

Страница 81: ...owing is an example of the show set and reset commands and provides actual screens to reference while proceeding What we have done is show the T 1 info screen set the T 1 bypass to N allowing the T 1 line to interface with the module change the loop start setting to wink start and reset the software at the appropriate times This is an actual example of how to make the T 1 module functional annex s...

Страница 82: ...9 ds0 20 ds1_modem 20 ds0 21 ds1_modem 21 ds0 22 ds1_modem 22 ds0 23 ds1_modem 23 ds0 24 ds1_modem 24 T1 DS0 Signaling Protocol Parameters sigproto ds0 1 loop_start loop_start ds0 2 loop_start loop_start ds0 3 loop_start loop_start ds0 4 loop_start loop_start ds0 5 loop_start loop_start ds0 6 loop_start loop_start ds0 7 loop_start loop_start ds0 8 loop_start loop_start ds0 9 loop_start loop_start ...

Страница 83: ...s ring ds0 1 yes ds0 2 yes ds0 3 yes ds0 4 yes ds0 5 yes ds0 6 yes more ds0 7 yes ds0 8 yes ds0 9 yes ds0 10 yes ds0 11 yes ds0 12 yes ds0 13 yes ds0 14 yes ds0 15 yes ds0 16 yes ds0 17 yes ds0 18 yes ds0 19 yes ds0 20 yes ds0 21 yes ds0 22 yes ds0 23 yes ds0 24 yes admin admin set t1 ds0 all sigproto wink_start wink_start You may need to reset the appropriate port Annex subsystem or reboot the An...

Страница 84: ...Chapter 4 CSMIM T1 Parameters 4 16 CSMIM T1 Hardware Installation Guide ...

Страница 85: ...LEDs and the ROM Monitor commands to diagnose problems Figure 5 1 illustrates the CSMIM T1 s front panel LEDs Figure 5 1 CSMIM T1 Front Panel CSMIM T1 SN 1 2 3 4 5 6 7 8 CD TX RX 16 15 14 13 12 11 10 9 MODEM PORT STATUS 24 23 22 21 20 19 18 17 1 8 17 24 9 16 MODEM CONFIG STATUS TEST LOS SYNC RED BLU YEL NETWORK STATUS ALARMS ON LINE DROP INSERT INTERFACE T1 NETWORK INTERFACE DI SYNC ETHERNET STAT ...

Страница 86: ...ected on the telephone line on the corresponding modem TX Transmit Data is a green LED that flashes to indicate the corresponding modem is transmitting data RX Receive Data is a green LED that flashes to indicate the corresponding modem is receiving data NETWORK STATUS TEST RED network TEST indicator is ON when the T1 Network Interface is looped back Loopback tests are activated either locally by ...

Страница 87: ... The green LED is OFF when there is a loss of frame LOF synchronization A LOF condition causes the T1 engine to transmit unframed all ones keep alive to the device attached to the Drop and Insert Interface SYSTEM ATTN The ATTN Attention indicator is amber and ON when the CSMIM T1 requires operator attention The indicator is flashing when there is a problem STAT The STAT Status indicator is green a...

Страница 88: ... the front panel puts the CSMIM T1 into SET UP mode When the CSMIM T1 is in SET UP mode the SET UP LED lights During the CSMIM T1 power up and boot sequence the CSMIM T1 runs a set of diagnostics The system LEDs display the diagnostics status The CSMIM T1 stops when it detects one of two error conditions see Table 5 2 The pattern of the system LEDs identifies the error condition 5 2 1 Normal Mode ...

Страница 89: ...l LEDs light for a few seconds then all but the Ethernet LED segment indicator turn off confirming that all LEDs are operational Activity N2 Testing the Hardware During the power up sequence the CSMIM T1 runs a series of self test diagnostics These diagnostics test internal hardware functions If a test fails the ATTN and STAT LEDs flash and an error message is displayed on the console port The TRA...

Страница 90: ... regularly about 1Hz Activity NE2 Hardware Failure The ROM diagnostics detected a CSMIM T1 hardware problem requiring service Call Technical Support Activity NE5 Booted Wrong Image The CSMIM T1 loaded the wrong image Press the SET UP button for 3 seconds to reset the device Following is a list of ways to prevent this problem in the future Be sure that you configure the CSMIM T1 with the appropriat...

Страница 91: ...uence Table 5 4 summarizes the LED sequences that display in test mode during an error free start up A description of each sequence follows Table 5 4 Table 5 4 Normal Mode Error LED States Key On continuously Off Flashing irregularly Flashing regularly about 1Hz Activity T1 Testing Indicators All front panel indicators light for a few seconds then all but the Ethernet channel indicator turn off Th...

Страница 92: ...the console terminal Enter the boot command at the prompt If you do not enter a filename with the command you are prompted to do so 5 2 2 2 SETUP Mode Error States Table 5 5 contains a description of the indicators that are used to describe errors that occur at different stages of the system start up process If the CSMIM T1 fails while testing the hardware state T2 the error condition is hardware ...

Страница 93: ...e Don t rename the image file unless you are making a copy for safe keeping If you used an na admin or cli boot command specify the correct image and a valid filename 5 3 BOOT FAILURES The procedures for troubleshooting a power up failure established that The hardware is functional The Ethernet interface is functional The CSMIM T1 can communicate with the Ethernet If the CSMIM T1 still is not boot...

Страница 94: ... s configuration parameters 5 3 1 Boot Error Report If an error occurs a CSMIM T1 boot error report is generated only if the CSMIM T1 has opened the boot file The report is displayed using the following format BOOT ERROR REPORT for BFS files only Boot attempt from host nn nn nn nn Errors from Last Open Request 0 ARP errors 0 ERPC layer errors 0 Aborts rx d Errors from Last Read Request 0 Msgs w wr...

Страница 95: ...Request layers It is responsible for sending a given message to a specific host UDP port and for receiving the correct response to that message from the port Table 5 6 Errors from Last ERPC Layer Invocation Error Description H W errors The CSMIM T1 sensed a hardware error during message transmission or reception This error indicates a fault with the CSMIM T1 LAN interface Use the net command to is...

Страница 96: ...Read Request Run erpcd D on the host to obtain more information Error Description ARP errors Address Resolution Protocol ARP errors indicate that the CSMIM T1 is configured to boot from a specified host but the host would not transmit its Ethernet address to the CSMIM T1 Possibly the CSMIM T1 configuration includes the wrong IP encapsulation ERPC layer errors See Table 5 6 Aborts rx d The host s B...

Страница 97: ...3 IP packet encapsulation Use the default Ethernet unless you know absolutely that your LAN does 802 2 802 3 IP packet encapsulation You can use the defaults for the name of the image file containing the CSMIM T1 s software and the address of the preferred load server host If the value for the image name is incorrect the CSMIM T1 cannot boot Correct the name using the image command If the address ...

Страница 98: ... utilities All CSMIM T1 software is installed properly on the host See the Software Installation Notes that come with the CSMIM T1 software release The erpcd daemon or tftp server which loads the operational image to the CSMIM T1 is running In test mode both the CSMIM T1 and erpcd on the load server host display boot progress reports The CSMIM T1 displays its reports on the console erpcd displays ...

Страница 99: ...usr annex running in the background on the PC Set the CSMIM T1 and the erpcd on the load host into test mode 1 For erpcd on the load server host as superuser kill the erpcd program and restart it using the D option usr annex erpcd D5 2 On the CSMIM T1 hold down the SET UP button for 3 seconds to enter the SET UP mode Then enter monitor boot v 5 3 2 3 Another CSMIM T1 When troubleshooting a CSMIM T...

Страница 100: ...en enabled username TOPAZ OPCOM 23 DEC 1994 08 0 49 Operator status for operator _NTA2 CENTRAL PRINTER TAPES DISKS DEVICES CARDS NETWORK CLUSTER SECURITY LICENSE OPER1 OPER2 OPER3 OPER4 OPER5 OPER6 OPER7 OPER8 OPER9 OPER10 OPER11 OPER12 opcom 23 DEC 1994 08 03 43 55 Message from user DECNET DECnet event 0 3 automatic line service From node 1 69 BINGO 23 DEC 1994 08 03 43 52 Circuit SVA 0 Load requ...

Страница 101: ...ble 5 9 CSMIM T1 LED States During a Dump Key On continuously Flashing irregularly The CSMIM T1 sends a dump file to a preferred load dump host If you do not define this host by specifying an address the CSMIM T1 broadcasts a request and dumps to the first host that responds The CSMIM T1 sends a dump to the usr spool erpcd bfs directory on the dump host The usr spool erpcd bfs directory is a defau...

Страница 102: ...ess as its name Each dump file contains a complete image of the CSMIM T1 RAM memory and hardware state The amount of space required for a dump file varies according to the port configuration The ROM Monitor config command displays the amount of memory for the CSMIM T1 Table 5 10 shows sample dump file names All pathnames are relative to the file usr spool erpcd bfs Table 5 10 CSMIM T1 Dump File Na...

Страница 103: ...of 115 200 bps They support V 42bis data compression and use Hayes Smartmodem AT and V 25bis command sets with enhancements for maximum flexibility The modems achieve error free performance through the Microcom Networking Protocol MNP and V 42 error correction protocol standards They offer MNP Class 10 with Adverse Channel Enhancements ACE MNP 10 includes Multiple connection attempts during auto r...

Страница 104: ...and MNP2 through 4 V 42bis compression as well as MNP5 Data Compression MNP Class 10 Adverse Channel Enhancements ACE 14 400 Class 1 Group III fax send and receive operation through fax and data communications software Enhanced operation in cellular environments V25bis asynchronous operation Multi protocol auto answering to answer incoming calls automatically using various modulation protocols Tre...

Страница 105: ... effect press Enter You can enter an AT command at any supported serial port speed up to 115 200 bps Your modem automatically adjusts to the connection and command speeds autobauds up to 19 200 bps After you enter an AT at any speed up to 19 200 bps you can enter other commands at a new serial port speed at any time If you enter a command at 38 400 57 600 or 115 200 bps the serial port locks at th...

Страница 106: ...cho to local DTE F Restore Factory Defaults none H Hang Up none Hn Link Negotiation Speed 0 at highest speed Jn Bps Rate Adjust 0 disabled Ln Speed Matching 1 enabled Mn Cellular Power Level Adjustment 0 For central site modems Mn Select Cellular Transmit Level 0 26 dBm Nn Operating Mode 3 auto reliable On Enter Connect State and Retrain none Qn Quiet 0 result code output Qn Serial Port Flow Contr...

Страница 107: ... 11 Bit Data Connections By default your modem port passes 10 bit characters during MNP or LAPM connections In a normal or direct connection those bit and parity settings on the originating and remote modems must match for data to transfer accurately The serial port parity determines the number of data bits set during a direct connection The E command determines the characters handled on the modem...

Страница 108: ...s Connections over most land lines can reach 14 400 bps modem speeds between V 32bis modems and 28 800 bps between V 34 modems MNP 10 cellular connections occur at the highest speed the modems determine they can support for each cellular connection If the land side modem will only make cellular connections we recommend setting N2 6 3 3 2 MNP 10 V 32bis Quick Connect Cellular Only Setup Land side m...

Страница 109: ... and adds line probing and fast negotiation between two modems that support it If the other modem does not include V 8 your modem will proceed with the previous negotiation methods Expect these faster negotiations as V 34 modems become common You should also see better adaptations to phone lines In V 34 connections our modems stay in that modulation from 2 400 through 28 800 bps The V FC range is ...

Страница 110: ...for direct and normal connections For V 23 half duplex connections set F3 on both modems The features described in this manual apply to V 23 operation except that the modem does not support V 54 digital and analog loopback MNP and LAPM connections Table 6 2 Configuring the Modems for V 23 connections When F1 F2 or F3 is set for V 23 connections Protocol Command V 23 1200 bps half duplex F3 NOTES W...

Страница 111: ...tocol V 21 protocol is used for 300 bps full duplex connections The features described in this manual apply to V 21 operation except that your modem does not support V 54 digital and analog loopback LAPM connections Bell 212A Protocol Bell 212A protocol is for 1200 bps full duplex connections NOTE For V 22 at 600 bps both modems must be set to 600 bps NOTE When your modem establishes a V 21 connec...

Страница 112: ...peed and Fn This section lists settings to configure the modem for each mode and protocol Modem connection speeds are in parentheses Table 6 3 Configuring the Modem with F0 Set NOTE When your modem establishes a reliable Bell 103 connection it displays CONNECT 103 REL MNP For a normal or direct Bell 103 connection the message is CONNECT Protocol Issue G0 Issue G1 V 21 75 300 bps B0 at 300 bps B0 B...

Страница 113: ...i mode answering V 34 V 32bis 14400 bps at 14400 bps B14400 V 34 V FC 14400 bps at 14400 bps BV14400 V 34 V FC 16800 bps at 16800 bps B16800 V 34 V FC 19200 bps at 19200 bps B19200 V 34 V FC 21600 bps at 21600 bps B21600 V 34 V FC 24000 bps at 24000 bps B24000 V 34 V FC 26400 bps at 26400 bps B26400 V 34 V FC 28800 bps at 28800 bps B28800 NOTE For the highest possible throughput available set the ...

Страница 114: ...V 32bis V 34 V FC V 34 V 32bis 4800 14400 V 22 a V 22bis V 32 V 32bis V 34 V 32bis V 34 V 32 4800 9600 V 22 a V 22bis V 32 V 32 V 34 V 32 V 34 V 22bis 2400 V 22 a V 22bis V 22bis V 22bis V 34 V 22bis V 22 a 1200 V 22 a V 22 a V 22 a V 22 a V 22 a V 22 b 600 V 22 b V 23 c half duplex V 23 c V 23 c V 23 c V 23 c V 23 c V 21 75 300 V 21 V 21 V 21 V 21 V 21 Bell212A 1200 V 22 a V 22 a V 22 a V 22 a V ...

Страница 115: ...ell212A V 21 V 23 c V 34 V FC 2400 28800 Bell103 Bell212A V 34 V 32bis 4800 14400 Bell103 Bell212A V 34 V 32 4800 9600 Bell103 Bell212A V 34 V 22bis 2400 Bell103 Bell212A V 22 a 1200 Bell103 Bell212A V 22 b 600 V 23 c half duplex V 23 c V 21 75 300 V 21 V 21 Bell212A 1200 Bell212A Bell212A Bell103 300 Bell103 Bell103 NOTE For operations at V 22 600 bps both modems must be set to 600 ...

Страница 116: ...ses Dynamic Transmit Level Adjustment to calculate optimal transmit levels automatically to compensate for cellular phone signal distortion It lets the user configure the modem to negotiate the link at a low speed modulation then upshift to a higher speed after negotiation It improves link performance during adverse channel conditions by aggressive Adaptive Packet Assembly It maximizes throughput ...

Страница 117: ...n the line quality is poor and retransmissions are frequent the size of the packet decreases in order to maintain high throughput during error correction under poor conditions Optimized Data Phase is the redesign of the MNP protocol header that reduces the number of overhead bytes per data packet For example modems operating at Class 4 service transmit data at 2 900 bps MNP Class 6 allows half dup...

Страница 118: ...lf Test Local Analog Loopback with Self Test tests the local serial port The modem sends itself a test data sequence and then verifies the data to make sure that it receives them correctly Using Commands to Perform a Local Analog Loopback with Self Test To initiate a Local Analog Loopback with Self Test type AT T8 Enter When the test finishes the screen displays a three digit number that represent...

Страница 119: ...r command state and type AT T0 Enter To end the test and hang up type ATH Enter 6 6 4 Remote Digital Loopback with Self Test Remote Digital Loopback with Self Test tests the remote modem port the telephone line and the local serial and modem ports When the modem is set to Remote Digital Loopback with Self Test it sends the remote modem a special test data sequence and the remote modem echoes this ...

Страница 120: ... connect return to the command state and type B Enter 3 Type a sequence of characters The characters echoed on your display should match exactly the characters you typed The test continues for the time set with register S18 or until you manually terminate the test To manually end the test enter command state and type AT T0 Enter To end the test and hang up type ATH Enter 6 6 6 Local Digital Loopba...

Страница 121: ...gital Loopback The Respond to Remote Digital Loopback command configures your modem to accept a request from a remote modem to engage in a Remote Digital Loopback or a Remote Digital Loopback with Self Test To configure the modem to accept a remote digital loopback request at the command prompt type AT T4 Enter To configure the modem to ignore a remote digital loopback request type AT T5 Enter 6 6...

Страница 122: ...n Result Code Tables The tables use the abbreviations rel reliable and non rel non reliable Table 6 6 shows the short and long form result codes excluding connection result codes whose form depends on the V W and M commands Table 6 6 Result Codes Short Form Long Form 0 OK 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 6 NO DIALTONE 7 BUSY 8 NO ANSWER 5 NO PROMPT TONE NOTE Display of these call progress mon...

Страница 123: ...V1 M0W1 Report DTE Speed DTE Speed bps Non rel V1 rel V2 rel V0 rel V3 rel V4 rel V5 rel4 75 75 75 REL 300 300 300 REL 600 600 600 REL 1200 1200 1200 REL 2400 2400 2400 REL 4800 4800 4800 REL 9600 9600 9600 REL 19 200 19 200 19 200 REL 38 400 38 400 38 400 REL 57 600 57 600 57 600 REL 115 200 115 200 115 200 REL ...

Страница 124: ... V 21 REL V 21 REL Bell 103 300 2 103 REL 103 REL V 23 half duplex 1200 V 23 HDX3 V 22 6003 600 600 REL 600 REL V 22 Bell 212A 1200 1200 1200 REL 1200 REL V 34 V 22bis 2400 2400 2400 REL 2400 REL V 34 V 32 4800 4800 9600 REL 4800 REL V 34 V 32bis 7200 7200 9600 REL 7200 REL V 34 V 32 9600 9600 9600 REL 9600 REL V 34 V 32bis 12 000 12 000 9600 REL 12000 REL V 34 V 32bis 14 400 14 400 14 400 REL 14 ...

Страница 125: ...NECT speed modulation REL MNP with the modulation V 34 V FC V 32 V 22 or FSK Table 6 9 Short Form Numeric Connect Result Code ATV0W0 or ATV0W1 Report DTE speed DTE Speed bps V0 V1 non rel V2 non rel V4 non rel V5 non rel V1 rel V2 rel V4 rel V5 rel V3 75 1 20 1 300 1 20 1 600 9 21 5 1200 5 22 5 2400 10 23 10 4800 30 31 11 9600 32 33 12 19 200 36 37 14 38 400 38 39 28 57 600 42 43 29 115 200 72 73 ...

Страница 126: ...el V5 non rel V1 rel V2rel V3 V4 rel V5 rel V 21 or Bell 103 300 11 20 11 20 V 23 half duplex 1200 51 51 V 22 600 91 21 51 21 V 22 or Bell 212A 1200 5 22 5 22 V 34 V 22bis 2400 10 23 10 23 V 34 V 32 4800 30 31 11 31 V 34 V 32bis 7200 402 33 24 41 V 34 V 32 9600 32 33 12 33 V 34 V 32bis 12 000 442 33 25 45 V 34 V 32bis 14 400 342 35 13 35 V 34 V FC 14 400 342 35 13 35 V 34 V FC 16 800 60 61 13 61 V...

Страница 127: ...ar to the Hayes Smartmodem registers although some have enhanced modem features 7 1 1 Entering Commands Each command line must begin with the characters AT the ATtention code Both characters of the attention code must be in either upper case or lower case but you may type the commands in any combination Type commands after the OK response The modem ignores spaces between characters If you make a m...

Страница 128: ...ort speed and change to another speed Enter an AT Bn command where n is any supported serial port speed or type AT U to unlock the serial port speed then enter an AT at the new speed or with D2 or D3 set lower then raise DTR 7 2 COMMANDS This section lists the modem AT commands in alphabetical order A command argument printed in bold is the default setting A Repeat Last Command Re executes the las...

Страница 129: ...on stops if the modem receives a SYN character decimal 22 An Maximum MNP Block Size A0 Sets block size up to a maximum of 64 characters A1 Sets block size up to a maximum of 128 characters A2 Sets block size up to a maximum of 192 characters A3 Sets block size up to a maximum of 256 characters Sets maximum block size for MNP stream link connections Bn ITU T Bell Mode B0 Uses ITU T V 22 and V 21 st...

Страница 130: ...O Enter See also K Cn Compression Control C0 Disables data compression C1 Enables MNP 5 Data Compression only C2 Enables V 42bis compression only C3 Enables both V 42bis and MNP 5 Data Compression The modem matches the capability of the remote modem Determines whether the modem attempts to use data compression during reliable connections We recommend leaving this command at its default C3 This all...

Страница 131: ...e this command if your computer requires CD to be Off at certain times See also the D command description Cn CTS DSR and DCD Connect Message Control C0 CTS DSR and DCD go On after the connect message is sent C1 CTS DSR and DCD go On before the connect message is sent Specifies whether CTS DSR and DCD go On before or after a connect message Use this command with T14 NOTES We recommend disabling bps...

Страница 132: ...m during the 3 seconds when it tries to establish a reliable connection When the modem receives calls both from modems that support MNP and from modems that do not set C2 This allows the modem to switch to normal mode as soon as it detects a log on character defined by A from a non MNP caller This eliminates the 3 second wait See the N command description for more information about auto reliable a...

Страница 133: ...ber 011 22 555 1234 type ATD 011225551234 Enter Dial Modifiers Dial modifiers allow you to add conditions to the telephone number you dial You can use several modifiers with the same telephone number Dial modifiers include A Link Negotiation Perform link negotiation at 4 800 bps for the current connection only This dial modifier is equivalent to the H2 command J Link Negotiation Perform link negot...

Страница 134: ...uses the modem to wait for the register S7 time delay for at least one ring followed by five seconds of silence before acting on the next character in the dial string If the modem does not detect this sequence it displays NO ANSWER and hangs up Use this modifier when the system you are calling does not provide a dial tone For example ATD 5551234 43210 Enter NOTE Tone dial is the default setting Th...

Страница 135: ... encounters a modifier within a dial string it waits to receive this bong signal Once it detects it the modem continues processing the dial string If the time set by register S7 elapses first the modem hangs up and displays NO PROMPT TONE 7 2 1 Operating Mode Dial Modifiers Use the following dial modifiers to override the Nn command setting Placed anywhere in the dial string these modifiers cause ...

Страница 136: ...Mode Placed anywhere in the dial string causes the modem to override the current operating mode and dial in normal mode for the current connection only DL Redial the Last Telephone Number Dialed Redials the last telephone number that the modem dialed Dn Disconnect Buffer Delay Where n is an integer from 0 to 255 representing seconds Default is 0 Sets a delay during which the modem attempts to proc...

Страница 137: ...cur within five seconds after disconnect are ignored D Repeat Dial D dial string Where dial string is a string of up to 98 characters Valid dial string characters are 0 9 dial modifiers and for tone dial A B C D and The modem ignores invalid characters DL Redials the last number dialed Redials a number up to 9 tries until connection In reliable mode it does not redial if a remote modem answers but...

Страница 138: ...her when answer tone is detected when originating when going off hook when answering or when connection ends and follow connection status during connection C D Result 0 0 DCD On DSR On CTS On 0 1 DCD On DSR On CTS On 0 2 DCD On DSR On CTS On 0 3 DCD On DSR complies with the ITU T recommendations CTS On 0 4 DCD On CTS DSR comply with the ITU T recommendations 1 0 DCD follows modem carrier DSR On CT...

Страница 139: ... Data Length E0 Enables 10 bit data during normal mode connections E1 Enables 11 bit data during normal mode connections Determines the number of data bits used on the modem port during normal mode connections when N0 is set when the serial port is configured for asynchronous transmission of 11 bit characters Both modems must be set to the same number of data bits 2 0 DCD On Off for a few seconds ...

Страница 140: ... local computer E1 functions only during normal mode connections Fn V 23 Mode F0 Allows multi protocol answering disables V 23 mode on originate modem F3 1 200 bps transmit 1 200 bps receive half duplex V 23 mode Detemines the V 23 mode used at 1 200 bps When F0 is set and the modem is at 1 200 bps or higher it can answer as a V 23 1 200 1 200 bps half duplex modem When F3 is set the modem can onl...

Страница 141: ...ol processing If the modem receives either a primary or secondary XOFF flow control character it stops sending data until it receives the corresponding primary or secondary XON character Gn Independent Serial Port Modem Port Speed G0 Serial port speed determines modem port speed G1 B command determines modem port speed Determines whether the modem port speed updates to match the serial port speed ...

Страница 142: ...ends XON and XOFF characters to the remote device but ignores XON and XOFF characters from the remote device H Hang Up H0 Disconnects from the remote system and hangs up the telephone line H1 Disconnects from the remote system and goes off hook in command mode The modem ignores ring signals and positive transitions of DTR for 5 seconds after disconnect NOTES Reliable mode has its own method of flo...

Страница 143: ...the firmware ROM and displays the checksum status which should display OK I3 Displays modem name and firmware version Jn Detect Phase J0 Disables the detect phase J1 Enables the detect phase Indicates whether the originating modem sends the V 42 control sequence to the answering modem to determine the type of error correction it has enabled The answering modem can have LAPM MNP or no error correct...

Страница 144: ...ata services that are not available with LAPM For example negotiating MNP Class 10 with V 42bis compression in preference to LAPM Kn Break Control Where n is a number between 0 and 5 indicating the type of Break the modem transmits Default is 5 Determines the type of Break the modem transmits when a Break enters the modem The following tables list the different effects of the n value when the mode...

Страница 145: ... connec tion K0 Enter command state no Break to remote system Empty data buff ers send Break to remote system Send Break to remote system set modem to command state Empty data buff ers send Break to serial port K1 Empty data buff ers send Break to remote system Same as K0 Send Break to remote system Same as K0 K2 Same as K0 Immediately send Break to remote system Same as K0 Immediately send Break ...

Страница 146: ...or L3 is Set NOTE Both modems must support the V 8 protocol when using L4 or a connection will not be made Mode Set ting on Originating Modem Mode Setting on Answer Modem V 22 b V 22 a V 22bis V 32 V 32bis V FC V 34 V 34 2400 28 8 V 22 a V 22bis V 32 V 32bis V FC V 34 V FC 14 4 28 8 V 22 a V 22bis V 32 V 32bis V FC V FC V 32bis 4800 14 4 V 22 a V 22bis V 32 V 32bis V 32bis V 32bis V 32 4800 9600 V...

Страница 147: ...n using L4 or a connection will not be made NOTE When both the originate and answer modems are V 8 modems setting 300 bps will make a V 21 connection Mode Setting on Originating Modem Mode Setting on Answer Modem Bell212A Bell103 V 34 2400 28 800 V 22 a V FC 14 400 28 800 V 22 V 32bis 4800 14 400 V 22 a V 32 4800 9600 V 22 a V 22bis 2400 V 22 a V 22 a 1200 V 22 a V 22 b 600 Bell212A 1200 Bell212A ...

Страница 148: ...shows the modem connections when L0 is set Mode Setting Originating Modem Mode Setting Answer Modem V 22 b V 22 a V 22bis V 32 V 32bis V FC V 34 V 34 2400 28 8 V 22 a V 22bis V 32 V 32bis V FC V 34 V FC 14 4 28 8 V 22 a V 22bis V 32 V 32bis V FC V FC V 32bis 4800 14 4 V 22 a V 22bis V 32 V 32bis V 32bis V 32bis V 32 4800 9600 V 22 a V 22bis V 32 V 32 V 32 V 32 V 22bis 2400 V 22 a V 22bis V 22bis V...

Страница 149: ...0 1200 2400 4800 2400 4800 7200 2400 4800 7200 9600 2400 4800 7200 9600 12 000 2400 4800 7200 9600 12 000 14 400 2400 4800 7200 9600 12 000 14 400 14 400V 14 400 16 800 2400 4800 7200 9600 12 000 14 400 16 800 19 200 2400 4800 7200 9600 12 000 14 400 16 800 19 200 21 600 2400 4800 7200 9600 12 000 14 400 16 800 19 200 21 600 24 000 2400 4800 7200 9600 12 000 14 400 16 800 19 200 21 600 24000 26 40...

Страница 150: ...des the V command setting for long form connection result codes and the W command for serial port connect messages When M1 is set and an MNP connection established the connect message is CONNECT MNPn x where n equals the MNP Class from 1 to 10 and x equals the type of data compression used V 42bis or MNP Class 5 If M1 is set the message is CONNECT MNPn y x where y equals CELLULAR If the modems do ...

Страница 151: ...s of the setting of Jn Error correction does not occur Reliable mode N2 uses the MNP reliable link to provide error detection and automatic retransmission of data if an error occurs This provides for error free communications between your system and another that supports the MNP reliable link When N2 is in effect the modem disconnects if it fails to establish an MNP reliable link immediately after...

Страница 152: ...between your system and the remote system are error free The remote system must also be equipped to handle an LAPM reliable link The modem attempts to establish an LAPM reliable link immediately after making a connection If the attempt fails the modem disconnects LAPM reliable mode with fallback to normal mode N5 attempts to establish an LAPM reliable connection If the LAPM connection attempt fail...

Страница 153: ... 400 bps or higher and then returns to connect state Type ATO1 Enter to reduce errors due to loss of equalization when excessive bit error rates are present NOTE MNP Extended Services In the chart you can use MNP Extended Services for V 42 connections where LAPM appears if both modems are set with K1 or K2 Answering Modem Originating Modem N0 N1 N2 N3 N4 N5 N6 N0 normal direct normal NC normal NC ...

Страница 154: ...its odd parity O6 8 data bits even parity O7 8 data bits mark parity Allows you to change the serial port parity setting that is automatically set by the AT sequence You can also use the O command to change the serial port parity while connected to a remote device Use this command when the local device supports XON XOFF flow control and detects parity This command ensures that all XON and XOFF cha...

Страница 155: ...m sends all command echoes and command responses to the PC with parity that matches the serial port s With P0 or P1 set all received data pass through to the computer at 8 data bits no parity With P2 set all received data pass through to the computer with parity corrected to match the serial port parity NOTES 8 bits and mark parity The AT sequence cannot be used to match 8 bit data with mark parit...

Страница 156: ... a V 32bis or V 32 MNP reliable connection to a V 22bis MNP reliable connection at 2 400 bps or a V 22 MNP reliable connection at 1 200 bps Fallback may occur when poor telephone lines cause excessive MNP retransmissions Fallback from a V 32bis or V 32 MNP reliable connection to a 4 800 bps V 32bis or V 32 MNP reliable connection is always enabled regardless of the Q setting The modem always uses ...

Страница 157: ... flow control prevents buffer overflow During direct mode connections the modem does not use flow control and ignores the Q setting Q1 enables bi directional XON XOFF flow control Sending an XOFF character stops data transmission sending an XON character restarts it The modem generates XON and XOFF characters at the same parity as on the serial port The serial port responds to XON and XOFF charact...

Страница 158: ...ow control the same as Q3 but also keeps CTS Off until a connection is established and ignores RTS while not connected Rn Read All Registers R0 Displays the contents of all S registers in decimal and hexadecimal integers in tabular format R1 Displays the contents of all T registers in decimal and hexadecimal integers in tabular format Rn RTS CTS Options R2 ITU T V 13 emulates half duplex over a fu...

Страница 159: ...s the default Tn Test and Diagnostics Commands T0 End test in progress T1 Local analog loopback T3 Local digital loopback T4 Respond to remote digital loopback T5 Do not respond to remote digital loopback T6 Remote digital loopback T7 Remote digital loopback with self test T8 Local analog loopback with self test T0 ends a test in progress without terminating a connection and returns the local and ...

Страница 160: ...h Self Test Upon completion of the test the modem reports errors to the local device This command is available only when the modem connects in normal or direct mode and is set to 1200 bps or higher T8 makes the modem send itself the ITU T V 54 test pattern and verify these characters Upon completion of the test the modem reports errors to the local device This command is available only when the mo...

Страница 161: ...mware Version Displays the modem firmware main code version Vn Error Correction Result Code Form V0 Uses standard long form result codes CONNECT speed V1 Adds REL to long form error correction result codes CONNECT speed REL V2 Displays long form error correction protocol result codes CONNECT speed REL MNP or CONNECT speed REL LAPM or CONNECT speed REL CELLULAR V3 Adds REL to long form error correc...

Страница 162: ...ions software requires Hayes compatible connection result codes Note that when V1 is set to select long form result codes V3 is equivalent to V1 Use V3 V4 or V5 to see actual connect speed V Display Bootstrap Revision Requests modem to display its current flash memory bootstrap revision Wn Connection Speed Reporting W0 Displays serial port connect messages W1 Displays serial port connect messages ...

Страница 163: ...with W2 it dials 6 with 4 pulses Wn Store Current Configuration Stores current user profile n where n 0 to 3 Default is 0 Stores the active commands and certain S registers You store telephone numbers independently with the Pn and Zn commands AT W stores the serial port speed and parity and the modem port speed that are in effect when you enter W AT W does not store the following restricted S regi...

Страница 164: ...rate when it establishes a connection X2 Modem ignores busy signals Displays NO DIALTONE if it does not detect one within 5 seconds of dialing Sends a connect result code reflecting bps rate when it establishes a connection X3 Modem ignores dial tone Displays BUSY if it detects a busy signal Sends a connect result code reflecting bps rate when it establishes a connection X4 Displays NO DIALTONE if...

Страница 165: ...pt of H or DTR drop if D2 or D3 is set Sends a Break up to 4 seconds before disconnecting in response to an H command or if DTR drops and either D2 or D3 is set If D3 is set and DTR drops the modem disconnects If the answer modem sees the Break it drops the connection NOTE The W dial modifier causes the modem to wait for dial tone regardless of the X setting CAUTION With X0 set and XON XOFF flow c...

Страница 166: ...t Resets user profile n where n 0 to 3 Hangs up the phone line and clears the modem and serial port buffers Also restores commands and registers that you last saved with either W or or the factory defaults if you have not entered an W or W To reset the modem type ATZn Enter n 0 to 3 If OK does not appear type ATQ Enter to enable result codes NOTES Yn is available only during normal and direct conn...

Страница 167: ...nd used was ATS0 2 entering AT 4 changes the value of register S0 from 2 to 4 Display the Value of the Last Referenced S Register Displays the value of the last S register referenced in a read write or point to command Point to New Register Sn Where n is an integer from 0 to 27 indicating a register instructs the modem to point to the register whose location is n This becomes the last referenced r...

Страница 168: ...8 seconds after the last ring the ring counter resets to 0 The modem ignores ring signals for 5 seconds after disconnect S2 n Escape Code Character Range 0 255 ASCII decimal Default 43 Sets the character used for the three character escape code sequence When the modem is in connect state and receives the escape code sequence it enters command state Setting register S2 to 0 disables the escape code...

Страница 169: ...er with W enter W to save it S6 n Wait Before Dialing Range 2 255 seconds Default 2 seconds Sets the length pause after off hook before the modem dials The modem always pauses for a minimum of two seconds even if S6 is set less than 2 S7 n Wait for Carrier After Dial Range 0 255 seconds Default 60 seconds Sets the length of time that the modem waits for Carrier from remote modem before hanging up ...

Страница 170: ...t as a carrier S10 n Delay for Hang Up After Carrier Loss Range 0 255 tenths of a second Default 60 6 seconds Sets the length of time the modem waits before hanging up loss of carrier allowing for a temporary loss Both modems should have equal S10 values Otherwise disconnect occurs when the lower value is reached When register S10 is set to 255 the modem functions as if carrier is always present A...

Страница 171: ...uiet time that must be present before and after entering the escape code The delay between each character in the escape code must be less than this guard time If register S12 is set to 0 the time it takes to enter the escape code does not affect recognition S14 n Bit Mapped Register The modem saves the following command settings when you enter them You do not need to enter W or W NOTES The modem d...

Страница 172: ...and is available only when the modem is in normal or direct mode The modem supports all loopback tests at 1200 bps or higher but does not support diagnostics in Bell 103 V 13 V 21 or V 23 Bit Position Function Decimal Value 0 not used 1 command echo 0 no echo 1 echo 2 result codes 0 result codes 1 no result codes 3 result type 0 short form 1 long form 4 dumb mode 0 smart mode 1 dumb mode 5 dial me...

Страница 173: ... is set to 0 type AT T0 Enter to end a test Bit Position Function Decimal Value 0 Local Analog Loopback 0 disabled 1 enabled 1 not used 2 Local Digital Loopback 0 disabled 1 enabled 3 Remote Digital Loopback status initiated by the remote modem 0 1 loopback Off loopback in progress 4 Initiate Remote Digital 0 disabled Loopback 1 enabled 5 Initiate Remote Digital 0 disabled Loopback with Self Test ...

Страница 174: ...Ignores DTR D0 1 On to Off DTR transition modem enters com mand state D1 2 On to Off DTR transition modem goes on hook D2 3 On to Off DTR transition modem resets D3 5 DCD 0 DCD always On 1 DCD On indicates data carrier is present or DCD On except momentarily at disconnect 6 not used 7 long space 0 off Y0 disconnect 1 on Y1 Bit Position Function Decimal Value 4 5 6 result code 0 same as X0 options ...

Страница 175: ...l Loopback option during reliable connections Bit Position Function Decimal Value 0 respond to remote digi tal loopback 0 1 disabled enabled 1 2 3 serial port bps 0 0 to 300 bps 1 600 bps 2 1200 bps 3 2400 bps 4 4800 bps 5 9600 bps 6 19200 bps 7 38400 57600 and 115200 bps 4 5 parity option 0 even 1 space none 2 odd 3 mark 6 7 guard tones 0 disabled 1 550 Hz 2 1800 Hz 3 not used ...

Страница 176: ... delay described above takes effect when loss of DTR occurs S27 n Bit Mapped Register Table 7 13 Table 7 13 Saved Command Settings with S27 T0 n Timer for V 22bis V 22 and V 32 Modes During Multi Protocol Answer Where n is an integer from 0 to 255 in tenths of a second Default is 40 4 seconds NOTE If you use register S23 to change the parity set automatically or set by On the same number of data a...

Страница 177: ... before attempting a V 23 half duplex connection During this period the modem sends V 21 carrier Set T2 20 2 seconds when including V 23 half duplex in the multi protocol answer modem T3 n Timer for V 21 and V 23 Answer Tone Duration Where n is an integer from 0 to 33 tenths of a second Default is 33 3 3 seconds This command requires either V 21 operation F0 is set and the modem speed is 300 bps o...

Страница 178: ...lex Intercharacter Delay Where n is an integer from 0 to 255 in increments of 12 5 milliseconds Default is 7 87 5 milliseconds This command takes effect only during normal mode V 23 half duplex connections Sets the length of time the modem waits after transmitting the last data character in the transmit buffer before turning carrier off T5 may need to be adjusted if the local computer intercharact...

Страница 179: ...cified time it hangs up T9 n Primary XON Flow Control Character Where n is a decimal from 0 to 255 representing an 8 bit character Default n 11 hexadecimal or 17 decimal DC1 Defines the character used for primary XON flow control on the modem and serial ports Enable primary flow control with Q1 Q4 G1 or G2 T10 n Primary XOFF Flow Control Character Where n is a decimal from 0 to 255 representing an...

Страница 180: ...imal from 0 to 255 representing an 8 bit character Default is FB hexadecimal or 251 decimal Defines the character used for secondary XOFF flow control on the modem serial port For secondary flow control to take effect you must set either F1 Q1 or F1 Q4 T14 n Connect Message Delay Timer Where n is an integer from 0 to 255 in 100 millisecond interval Default is 0 Specifies how long to wait before or...

Страница 181: ...sequences exchanged when trying to establish V 32 and V 32bis connections Reduce the time required to establish a connection by setting T17 to a value less than 28 this increases the modem s sensitivity to noise on the line Reduce the modem s sensitivity to noise by setting T17 to a value greater than 28 this lengthens the time required to make a connection Bit Position Function 1 not used 2 0 RTS...

Страница 182: ...opped when disconnecting For example if D2 and C1 are set when DCD and CTS drop the modem then waits the amount of time specified by T22 before dropping DSR T23 n Bit Mapped Register Table 7 16 Table 7 16 T23 Settings Bit Position Function 0 0 Modem keeps a non MNP10 1200 bps connection if no MNP link activity is received from the remote modem 1 Modem disconnects a non MNP10 1200 bps connection if...

Страница 183: ... below default 5 Lowest V 34 V FC connection speed about 2 speeds below default Allows you to change the V 34 V FC connection speed according to line quality We recommend leaving this register at its default setting If you notice that your modem falling back during V 34 V FC connections or that you are seldom able to make 28 800 connections you can try the lower settings of this register Bit Posit...

Страница 184: ...Chapter 7 AT Commands and Registers 7 58 CSMIM T1 Hardware Installation Guide ...

Страница 185: ...ling A 2 CONSOLE PORT The console port is used at install to configure the CSMIM T1 In order to access the ROM Monitor Console Monitor and T1 Parameters you will need to attach a terminal to the console port Table A 1 RJ45 Console Port Pin Signal Allocations Figure A 1 RJ48C Port Receptacle RJ45 Pin Signal 1 RTS 2 DTR 3 TXD 4 DCD 5 RXD 6 GND 7 Unused 8 Unused 1 8 Front view ...

Страница 186: ...l Allocations Table A 3 Drop and Insert Interface Port Pin Signal Allocations Table A 3 describes the wiring for the following connectors DTE Cabletron part number 9372074 for DB25 female DTE Cabletron part number 9372082 for DB25 male DTE Cabletron part number 9372076 for DB9 female DCE Cabletron part number 9372083 for DB25 female Pin Signal 1 RXD RING 2 RXD TIP 3 Unused 4 TXD RING 5 TXD TIP 6 U...

Страница 187: ...o allow Network Manager to telnet to CSMIM T1 and access EMME local management CSMIM T1 to DB9 Console Connector part number 9372087 Connects CSMIM T1 slave port to IRM 2 3 to allow Network Manager to telnet to CSMIM T1 and access IRM 2 3 local management RJ48C Pin Signal Direction DTE DB25 DCE DB25 DTE DB9 MMJ RS423 1 RTS OUT 5 4 8 2 DTR OUT 8 6 20 6 1 6 DSR 3 TxD OUT 3 2 2 5 RXD 4 DCD IN 20 8 4 ...

Страница 188: ...Appendix A PORT PIN SIGNAL ALLOCATIONS A 4 CSMIM T1 Hardware Installation Guide ...

Страница 189: ... answer tone length register 7 57 answer tone register 7 50 answer tone timer 7 51 asynchronous mode register 7 50 asynchronous synchronous time delay 7 50 AT T17 and T26 with cellular connections 6 6 T2 and auto answer 6 7 AT commands introduction 6 3 AT B to change serial port speeds 6 3 AT D and diagnostics 6 16 AT G and protocol setting 6 10 AT T BELLCORE calling card prompt 7 9 AT H and cellu...

Страница 190: ... 7 29 clear serial port speed 7 34 command state 7 9 7 19 7 48 command defaults key 6 4 command echo 7 13 command echo register 7 45 command state dial modifier 7 9 command repeat last 7 2 command prompt 7 1 command set 7 1 commands display firmware version 7 35 to change registers 7 41 to read registers 7 41 compatibilty of V FC and V 34 6 7 compression control command 7 4 compression data 6 14 7...

Страница 191: ...mode 7 8 in auto reliable mode 7 10 in LAPM mode 7 7 dial by tone 7 33 dial delay register 7 44 dial in answer mode 7 8 dial in auto reliable mode modifier 7 10 dial in direct mode modifier 7 10 dial in LAPM mode modifier 7 9 dial in normal mode modifier 7 10 dial in reliable mode modifier 7 10 dial method register 7 45 dial modifiers 7 7 dial modifiers operating mode 7 9 dial pause modifier 7 8 d...

Страница 192: ... compromise equalizer 7 14 enable data compression 7 4 enable detect phase 7 17 enable guard tone 7 15 enable MNP extended services 7 18 enable result codes 7 30 enable secondary flow control 7 15 enable speed matching 7 20 end test in progress 7 33 enter command state with 6 5 enter connect state 7 27 entering connect state 7 27 environmental requirements 1 13 equalizer control V 23 7 28 equalize...

Страница 193: ...and 3 14 3 15 examples 3 14 3 15 image d command 3 16 image name default 3 6 3 14 inactivity timer command 7 34 independent serial modem port speeds 7 15 Industry Canada Certification Number vi initial boot parameters setting addresses 3 3 installation instructions 2 1 Installing 2 5 Internet address setting 3 4 IP encapsulation setting 3 5 ITU T V 21 6 2 7 51 V 22 6 2 7 48 7 51 V 22bis 6 2 7 20 7...

Страница 194: ...tions and V 23 6 8 MNP error correction 6 14 MNP extended services command 7 18 MNP result code form 7 35 MNP10 and cellular connections 6 6 mode setting matrices 6 11 modem features 6 2 modem port flow control 7 16 speed 7 4 testing 6 17 6 18 modem port data length 7 13 modem port test 6 18 modem speed connection matrices 6 11 modem port bps rate 7 4 modulation protocols 6 7 modulation speed comm...

Страница 195: ...ettings 6 10 protocol connection matrices 6 11 protocols used by modem 6 2 protocols overview 6 7 pulse dial command 7 29 pulse dial modifier 7 7 pulse dialing 7 7 pulse dialing digits 7 37 pulse digit command 7 37 Q quick connect cellular calls 6 6 quiet answer 7 8 quiet command 7 30 quiet dial modifier 7 8 R RARP 2 11 rate negotiation timer 7 56 reading configuration register 7 32 7 41 modem sta...

Страница 196: ...tions 7 32 S S registers displaying 7 32 S registers overview 7 41 S registers read 7 32 saved configuration settings 7 37 7 40 secondary XOFF character 7 54 secondary XON character 7 54 Self booting 2 15 sequence command 3 21 examples 3 21 Serial Devices 2 8 2 9 serial port clear speed 7 34 flow control 7 25 7 30 speed 7 17 serial port bps rate 7 3 serial port DSR CTS control 7 11 serial port par...

Страница 197: ...e line quality 6 7 telephone numbers dialing 7 7 test Ethernet transceiver loopback 3 17 printer port 3 19 serial line ports 3 19 test command 7 33 test timer register 7 47 TFTP 3 8 time delay RTS to CTS 7 50 time delay asynchronous synchronous 7 50 time delay DTR 7 50 timer connect message delay 7 54 V 32 V 32bis 7 55 timer command 7 34 timer delay false answer abort 7 53 timer delay turn CD on 7...

Страница 198: ...V 32 V 32bis training time 7 55 V 32bis 7 55 V 32bis cellular connections 6 6 V 32bis overview 6 8 V 34 overview 6 7 6 8 V 34 V FC speed selection 7 57 V 54 6 18 7 34 V 54 and V 23 6 8 V 8 command 7 20 V 8 handshaking 6 7 V FC V fast Class overview 6 7 V FC V 34 compatibility 6 7 verbose result codes 7 35 W wait before dialing 7 8 7 43 for carrier after dial 7 43 for dial tone before dialing 7 44 ...

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