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EIA RS-232 Pinouts

A-2

RJ45 Pin Assignments

Table B-1 lists the signal assignments for pins 1–8 (Figure B-1) in

the RJ45 jacks on the back of the MP/16. These pin assignments

conform to the EIA-232 standard for RJ45 jacks.

Figure B-1. RJ45 Jack Pin Numbering.

Table B-1. EIA RS-232 RJ45 Pin Assignments.t

{

XE "DTR" \t "

See

Data Terminal Ready"

}

MP RJ45

Pin Number

Signal

Signal
Originate

RI (Ring Indicate)

MP/16

DCD (Data Carrier Detect)

MP/16

DTR (Data Terminal Ready)

DTE

SGND (Signal Ground)

both

RX (Received Data)

MP/16

TX (Transmitted Data)

DTE

CTS (Clear to Send)

MP/16

RTS (Request to Send)

DTE

Содержание MP/16

Страница 1: ...ormick Blvd Skokie IL 60076 2999 All Rights Reserved O P E R A T O R S M A N U A L O P E R A T O R S M A N U A L M P 1 6 w i t h M P 1 6 w i t h S N M P M a n a g e m e n t S N M P M a n a g e m e n t...

Страница 2: ...otics Access Corp Total Control MP 16 Courier and V Everything are trademarks of U S Robotics Access Corp Any trademarks tradenames service marks or service names owned or registered by any other comp...

Страница 3: ...Intended for those who are not using Total Control Manager SNMP TCM to manage the MP 16 Chapter 4 Special Applications Use to configure the MP 16 modems for such applications as Cellular and Link Secu...

Страница 4: ......

Страница 5: ...gning IP Addresses 2 7 Management Over a LAN 2 11 Dial Up Management 2 13 Modem Setup 2 18 Chapter 3 Using Total Control MIBs 3 1 Command Tables 3 2 Supported MIB II Groups 3 4 The Chassis MIB 3 6 The...

Страница 6: ...C 3 Issuing Commands While Online C 4 Help Command Summary Requests C 5 Viewing Configurations C 5 Remote Access C 5 Appendix D AT Command Reference D 1 Basic Command Set D 1 Ampersand Command Set D 8...

Страница 7: ...agement SNMP Agent A special SNMP agent contained in the MP 16 interprets SNMP commands and relays them to the managed objects in the MP 16 Management Station As a network manager you are responsible...

Страница 8: ...o change a modem setting TCM references the Modem MIB so that the command can be properly coded translated by the MP 16 management module and applied to the modems Likewise when TCM polls the MP 16 fo...

Страница 9: ...l or other resources Figure 1 2 Typical Setups for Dial up LAN Access SNMP management allows you to operate the MP 16 monitor line activity and perform dial up accounting from across a LAN or WAN dial...

Страница 10: ...al up SLIP connections from Management Stations in remote locations Figure 1 4 Dial up Management Direct Management A local SLIP connection can be made by connecting the Management Station to the MP 1...

Страница 11: ...ults Custom configurations can be stored as power on reset defaults in the modem s Non Volatile Random Access Memory NVRAM Software Upgrades Flash ROM make the modems software upgradable Fax Capabilit...

Страница 12: ...1 6 Overview...

Страница 13: ...tup the MP 16 for either LAN pages 2 11 2 12 or dial up SLIP management pages 2 13 2 17 7 Connect the modems to your Data Terminal Equipement DTE and analog phone source page 2 18 and set the modem DI...

Страница 14: ...following to successfully install the Total Control MP 16 A PC running terminal emulator software A good working knowledge of TCP IP and an addressing strategy for your network Your addressing strateg...

Страница 15: ...The Unit Back Panel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RJ11 Telco Jacks Modems 1 16 Sixteen telephone cords are provided 10base T Ethernet Connector For SNMP management only 10base 5 Ethernet Con...

Страница 16: ...ritical failure Management LEDs LED Color Status RUN Fail Solid Green Normal Solid Red Critical SNMP agent failure Flashing Green Testing SDL Flashing Green Red Non critical failure STATUS Solid Green...

Страница 17: ...isolated LAN segment is recommended Placing the MP 16 on a Desktop Stick the rubber feet included into the four recesses on the bottom of the unit and place on a flat hard surface This leaves room bel...

Страница 18: ...bove and below for adequate ventilation Use fan trays if necessary Power Be sure the power switch on the MP 16 is turned OFF before plugging in the power cable The supplied power cable plugs into the...

Страница 19: ...your network IP addressing scheme Table 2 1 Default IP Addresses Port Default IP Address LAN Port 192 77 203 193 WAN Console Port 192 77 203 65 Subnet Mask 255 255 255 192 Gateway 192 77 203 126 Acces...

Страница 20: ...5 Location of Console DIP Switches DIP switch 3 must be is in the UP OFF position Use DIP switches 1 and 2 to set the Console port speed to the highest rate supported by your PC and communication soft...

Страница 21: ...hed booting the Run Fail light should be solid green 5 Power on the configuration console Run the terminal emulator or communications program in terminal mode It must be set to the same port speed tha...

Страница 22: ...guration menu to save the settings to the MP 16 s NVRAM Make sure that Console DIP Switch 4 is in the UP OFF position so that the MP 16 boots from the NVRAM configuration Remote Configuration Optional...

Страница 23: ...rs the authorized access list as set in Total Control Manager SNMP TCM granting access to all users NOTE If you are using TCM SNMP these options may be set at a later time through the TCM interface Ma...

Страница 24: ...r 10BaseT Thicknet 10Base5 Figure 2 7 Cabling to a LAN NOTE If there is no Ethernet cable attached to the MP 16 when you power it on the MP 16 defaults to the AUI port If you later decide to connect t...

Страница 25: ...ses earlier in this chapter before continuing To set up the MP 16 for dial up management you will need the following A modem We suggest using a separ ate external modem For instructions on using one o...

Страница 26: ...t DIP Switches Set DIP switch 3 to the DOWN ON position This configures the Console port for management Use DIP switches 1 and 2 to set the Console port speed to the highest speed supported by the mod...

Страница 27: ...1 RTS flow control R2 DSR override S0 ITU T answer sequence B0 Command mode local echo off DIP Switch 4 ON E0 Online echo off F1 Suppress result codes DIP Switch 3 OFF Q1 U S Robotics modems fix their...

Страница 28: ...s you would if you were using a separate modem with the following guidelines In Step 2 Configuring the modem don t use the modem DIP switches to configure the MP 16 modem if these settings are going t...

Страница 29: ...le The following diagram illustrates this setup RJ11 Plug to TELCO Figure 2 10 Using an MP 16 Modem for Dial up Management NOTE If you use one of the modems in the MP 16 to dial in to the MP 16 you wi...

Страница 30: ...MP 16 conform to the EIA RS 232 standard for Data Communication Equipment DCE devices Standard RJ45 cables may be used to connect the modems to any RJ45 Data Terminal Equipment DTE interface also in...

Страница 31: ...efaults for the modems in the MP 16 Use the table on the following page to set the DIP switches for compatibility with your system The following illustration shows the location of the modem DIP switch...

Страница 32: ...Modem answers on first ring ON Auto answer disabled 6 OFF Carrier Detect Operations OFF Normal CD operations Courier sends CD signal when it connects with another modem drops CD on disconnect ON CD al...

Страница 33: ...ptimal modem performance with most installations The following table lists default settings stored in NVRAM Table 2 5 Default NVRAM Settings Setting Description B0 ITU T answer sequence M4 Normal erro...

Страница 34: ...the MP 16 s NVRAM using the Auto Configuration feature Using SNMP Management to Configure the modems We suggest using your SNMP management software to configure the modems Modem configuration using m...

Страница 35: ...ch as Link Security Cellular Result Codes and Leased Line It includes MIB object names TCM commands and AT commands for setting modem parameters Using AT Commands Optionally you can use AT commands to...

Страница 36: ...2 24 Installation...

Страница 37: ...Total Control MP 16 uses a subset of the Total Control MIBs They are identical to compatible revisions of MIBs used with other U S Robotics enterprise equipment The complete set of Total Control MIBs...

Страница 38: ...o help in situations where more than one Network Manager is trying to issue a command at the same time A typical use of the command table follows 1 An SNMP SET operation is used to set the Functionobj...

Страница 39: ...ions for the environment where multiple management stations are possible Two objects MgtStationId and ReqId are used for this purpose MgtStationId is a writeable object that is provided for optional u...

Страница 40: ...ternet Control Message Protocol group interfaces The MP 16 supports three rows in the interfaces table one for the WAN port interface one for the LAN port interface and one for the loopback interface...

Страница 41: ...Using Total Control MIBs 3 5 udp The MP 16 supports the mandatory UDP User Datagram Protocol group...

Страница 42: ...to simply as cards A card can occupy any slot in the chassis and can contain various manageable entities depending on what type of card it is The term card is used to describe a managed module in the...

Страница 43: ...AIL 1 2 3 4 5 6 7 8 RUN FAIL 9 10 11 12 13 14 15 RUN FAIL STATUS LANTX LANRX WAN TX WAN RX M Slot 3 Slot 1 Slot 2 Management Module NMC Modem Modules Figure 3 1 Slot Index for MP 16 The way an entity...

Страница 44: ...roup Most of the MIB objects in this group are self explanatory The exceptions would be uchasFrontPanelLedStates and uchasFrontPanelLedColor In general these objects are bitmaps The current design han...

Страница 45: ...States NOTE The most significant bits of the first 3 nibbles for each card are used as outlined above The most significant bits of the remaining 9 nibbles for each card are reserved and currently alwa...

Страница 46: ...nds that are common to all cards and are activated at the slot level The following describes the commands available from this table uchasCmdTable Command Descriptions Command Description noCommand 1 T...

Страница 47: ...ess 3 status in the uchasCmdResult column for the appropriate rows this indicates successful command initiation on these slots Once the uchasCmdFunction object is SET to softwareDownload 5 the managem...

Страница 48: ...all modules have successfully erased their Flash the NAC file TFTP transfer may be initiated The management station must begin the TFTP transfer of the NAC file Failure to do so will result in the de...

Страница 49: ...ith error status objects set to 124 This is the MS s trigger to begin the NAC file transfer The following TFTP command is issued to download the NAC file to the NMC TFTP B NM020200 NAC 192 77 203 65 N...

Страница 50: ...IB Although the MP 16 management module can not be accurately termed an NMC it uses the Total Control NMC MIB as it behaves identically in respect to its implementation of applicable NMC MIB variables...

Страница 51: ...Manager wants good timestamps in the SNMP Trap messages sent by the proxy agent Traps contain a timestamp in Greenwich Mean Time as an integer indicating the number of seconds since midnight on Januar...

Страница 52: ...ngs up the call NOTE On a dial in call to the NMC this idle time restriction does not exist In the event that the NMC is not successful in making a dial up connection while attempting to transmit a pa...

Страница 53: ...separate object nmcStatTestResult This object should be retrieved by a single GET request together with nmcCmdResult nmcCmdCode nmcCmdMgtStationId and nmcCmdReqId to ensure that results retrieved were...

Страница 54: ...ans that if NMC 1 has the a larger value for nmcStatCompSwVer than that of NMC 2 then NMC 1 s MIB support is a superset of that of NMC 2 The Trap Destination Table In order for the NMC to generate a t...

Страница 55: ...s NVRAM ignoring each NAC s NVRAM Enable nmcPowerUpAutoCfgEnable so the NMC automatically configures each device upon install of the NAC install of the NMC or power up of the chassis The advantage of...

Страница 56: ...in progress saveToNvram 2 This command saves the current configuration cache contents for the device in each slot to Flash NVRAM on the NMC In addition it saves the current state of each of the NMC s...

Страница 57: ...in network management functions For this reason the online version of the NMC s self test is non disruptive comprised of a subset of the power up tests For convenience the test results are returned in...

Страница 58: ...and the NMC saves the RAM image to EEPROM Subsequently a softwareReset command must be issued to the NMC to cause the new values for IP address related objects to take effect MIB Access to Local Conso...

Страница 59: ...hat a maximum of 10 rows may be added to this table The NMC performs IP address authorization validation by the process described below 1 Take the source IP address of the inc oming IP packet and perf...

Страница 60: ...be sent by NMC clients across a LAN connection to be logged The server itself does not generate reports from the data a post processing application or database script must be used to format the logge...

Страница 61: ...event record format may be extended to include the necessary event information The following information is included with all event records IP Address of Chassis UDP Port Number Event Sequence Number...

Страница 62: ...t Expired 19 Generic Slot Record Entity Index Connect time limit DTE Transmit Idle 20 Generic Slot Record Entity Index DTE Data Idle Timeout DTR True 21 Generic Slot Record Entity Index DTR True Timeo...

Страница 63: ...sSent Blocks Received mdmCsBlocksReceived Blocks Resent mdmCsBlocksResent Characters Lost mdmCsCharsLost Line Reversals mdmCsLineReversalQty Performance Statistics Group 3 Block CRC Errors mdmCsBlerQt...

Страница 64: ...S A S I S V Management Bus Failure 13 S A S I S V Incoming Connection Est 14 S A S I S V Outgoing Connection Est 15 S A S I S V Incoming Connection Term 16 S C S A S I S C S V Outgoing Connection Ter...

Страница 65: ...O2 I O2 I S I S I Outgoing Connection Term S I O2 I O2 I S I S I Connection Attempt Failure S I Connection Timer Expired S I DTE Transmit Data Idle S I DTR True S I DTR False S I BLER Count at Thresho...

Страница 66: ...O2 O2 Characters Received 0x0072 I O2 O2 Blocks Sent 0x0075 I O2 O2 Blocks Received 0x0076 I O2 O2 Blocks Resent 0x0077 I O2 O2 Retrains Requested 0x0078 I O3 O3 Retrains Granted 0x0079 I O3 O3 Line R...

Страница 67: ...te 0xBF2C I O3 O3 Initial Rx Link Data Rate 0xBF2D I O3 O3 Event Date Time 0xBF2F T S S S S S S S S S S Channel 0xBF38 I S S S S S S S S S S Chassis Slot 0xBF39 I S S S S S S S S S S Event Id 0xBFBE I...

Страница 68: ...cters Sent 0x0071 I Characters Received 0x0072 I Blocks Sent 0x0075 I Blocks Received 0x0076 I Blocks Resent 0x0077 I Retrains Requested 0x0078 I Retrains Granted 0x0079 I Line Reversals 0x007A I Numb...

Страница 69: ...Rx Link Data Rate 0xBF2D I Event Date Time 0xBF2F T S S S S S S S S Channel 0xBF38 I S S S S S S S S Chassis Slot 0xBF39 I S S S S S S S S Event Id 0xBFBE I S S S S S S S S Number of Rings Limit 0xBF...

Страница 70: ...Table The objects in the mdmLiTable characterize the operation of the modem s phone line interface See the MIB text for a complete description of each parameter and the relationship of that object to...

Страница 71: ...rameter to NVRAM and will configure this parameter last when doing an autoconfigure or restore from NMC NVRAM That means that if a conflict exists between a MIB object and an AT command in this string...

Страница 72: ...n or power on of an NMC for each modem in the table From then on every time one of the designated events occurs the corresponding counter for that modem and event is incremented by 1 These counters ar...

Страница 73: ...d a hardware reset of the card may be required storeToNvram 3 This command is equivalent to W of the modem AT command set It results in the modem saving all of its current settings to NVRAM on the mod...

Страница 74: ...the command is issued and forces the modem into an idle disabled state The status of the modem as reported by network management indicates that the modem is in this busy state mdmCsStatus lineBusiedO...

Страница 75: ...ng this test data is received by the local modem s DTE port passed through the local modem s analog transmitter over the line and received by the remote modem s receiver where it is looped back to the...

Страница 76: ...ern and checks the looped back data for errors The test can be terminated by expiration of the time specified in mdmTfTestTime or manually by issuing the terminateTest command Upon termination a count...

Страница 77: ...er Support The Trap MIB The CHS_TRAP MIB defines each of the enterprise specific SNMP Traps that can be generated by the MP 16 s proxy agent for devices in the chassis Each Trap definition is annotate...

Страница 78: ...sing Total Control MIBs The Latest SNMP MIBs U S Robotics MIBs are regularly updated on the U S Robotics BBS and at the U S Robotics Internet site ftp usr com You may use anonymous ftp to download the...

Страница 79: ...Link Security 4 1 Chapter 4 Special Applications This section describes how to configure the modems for the following special applications Link Security Cellular Result Codes Leased Line...

Страница 80: ...you are using Total Control Manager SNMP TCM Link Security is configured through Modem Programmed Settings under the Link Security Configurationparameter group If you are using SNMP Manager software o...

Страница 81: ...ed automatically when they call without being prompted to enter a password Fallback Password AT Command AT A password comma is required MIB Object mdmLsAccountPasswd Used for callers who do not have A...

Страница 82: ...phone number After a one minute pause the modem dials back to the caller s modem Telco policy dictates the one minute delay Fallback Password Prompting AT Command Enable S53 1 1 Disable S53 1 0 MIB Ob...

Страница 83: ...ect the appropriate modem s and from the Actions Commandsdialog box execute the Store to NVRAM command Software Reset AT Command Z MIB Object softwareReset TCM Select the appropriate modem s and from...

Страница 84: ...djusts the data packet size during data transfer in response to line conditions ensuring the maximum allowable packet size at all times Link Management Idle LMI Used to monitor line conditions when no...

Страница 85: ...tings for all outgoing calls Even if it is not connecting across a cellular link the modem forces a V 32 or V 22 type modulation and V 42 with a reduced packet size and will not connect using V 34 It...

Страница 86: ...r Defaults MIB Object loadMnp10CllulrDflt 25 AT Command F4 AT Command String Equivalent ATS60 3 This template includes the following settings MNP10 Negotiation AT Command S60 0 1 Enable MNP Extended S...

Страница 87: ...mand S66 1 0 Enable ETC Calling Tone AT Command S66 2 1 9600 DCE Startup Rate AT Command S66 4 0 S66 5 1 Wait for Carrier 90 Seconds AT Command S7 90 Lengthens the time the modem waits for a carrier t...

Страница 88: ...ended Services MNPX allows the modems to negotiate MNP10 as a part of the V 42 negotiation process WARNING If MNPX is disabled calls from modems using MNPX and V 42 connect without MNP10 Settings S60...

Страница 89: ...Provides stability and reliability for extremely noisy link conditions Settings S60 4 0 Negotiate for highest rate S60 4 1 Force 1200 bps Disable MNP10 Fallback AT Command S60 5 1 MIB Object mdmCeMnp1...

Страница 90: ...odems without MNPX In answer mode the MNPX detection pattern should always be enabled Settings S60 7 0 Enable detection pattern S60 7 1 Disable MNPX detection pattern V 42bis Short Form Negotiation Ru...

Страница 91: ...bile site cellular profile The cellular profile sets transmit levels based on ETC specifications Settings S66 1 0 Fixed site S66 1 1 Mobile site Enable ETC Calling Tone AT Command S66 2 1 MIB Object m...

Страница 92: ...Rate Some cellular links may be so poor that calls are dropped even before the modems can initialize modulation and error control negotiation To reduce the number of dropped calls the modem should be...

Страница 93: ...ls under adverse conditions However higher throughput is sacrificed for calls over stronger cellular links that can support higher link rates Settings S64 0 Modem selects maximum link rate Register 64...

Страница 94: ...ction status results such as RING BUSY NO ANSWER or CONNECT With extended results enabled more detailed information about a connection is appended to the CONNECT message such as the speed at which the...

Страница 95: ...ed DIP Switch 7 ON Q2 Originate Only Default DIP Switch 3 OFF Disabled DIP Switch 7 OFF Result Codes in Originate and Answer High Speed Result Codes Command S27 7 1 Determines if on establishment of a...

Страница 96: ...5551234 becomes 3TD5551234 When set to Verbal modem result codes are displayed as words Verbal responses are preceded and followed by a carriage return and line feed Settings DIP Switch 2 ON V0 Numeri...

Страница 97: ...800 85 CONNECT 19200 91 CONNECT 21600 99 CONNECT 24000 103 CONNECT 26400 107 CONNECT 28800 Functions Adaptive Dialing Wait for 2nd Dial Tone W Wait for Answer Fast Dial Function Definitions See Table...

Страница 98: ...dditional result co de indicators Use if there is a software incompatibility with these indicators A1 ARQ indicator A2 Additional V32 HST modulation indicator A3 Protocol indicator Reports HST LAPM or...

Страница 99: ...19200 ARQ 90 CONNECT 19200 ARQ V32 93 CONNECT 21600 V32 94 CONNECT 21600 ARQ 96 CONNECT 21600 ARQ V32 97 CONNECT 21600 VFC 98 CONNECT 21600 ARQ VFC 101 CONNECT 24000 VFC 102 CONNECT 24000 ARQ VFC 105...

Страница 100: ...he modems may be in either Smart or Dumb mode determined by the position of DIP switch 8 The User Installed or Leased Telephone Line User installed lines are most commonly 2 wire lines similar to the...

Страница 101: ...uidelines on using the B and H Appendix C and the W command Appendix C 2 Send the modem the following command AT B1 S2 H1 L1 S56 6 1 W B1 Fixes the modem s computer interface rate at the same serial p...

Страница 102: ...one modem as the calling modem and the other as the answering modem Set the answering modem to Auto Answer DIP switch 5 OFF and the calling modem to Auto Answer suppressed DIP switch 5 ON 5 Power off...

Страница 103: ...RJ45 cables Your equipment might require a DB 9 or DB 25 connector or even a four wire RJ11 connector Other equipment might have non standard interfaces that require special wiring You may even be try...

Страница 104: ...andard for RJ45 jacks 1 8 Figure B 1 RJ45 Jack Pin Numbering Table B 1 EIA RS 232 RJ45 Pin Assignments t XE DTR t See Data Terminal Ready MP RJ45 Pin Number Signal Signal Originate 1 RI Ring Indicate...

Страница 105: ...ur distributor about U S Robotics Cable Kits They provide the necessary RJ45 cables and adapters for connecting the MP RJ45 jacks to standard EIA RS 232 DB 9 and DB 25 interfaces 1 13 14 25 1 5 9 6 Fi...

Страница 106: ...lowing table Table B 3 Signal Assignments for MP 16 to another DCE Device MP 16 DCE Device Pin Signal Signal 1 RI DTR 2 DCD no connection 3 DTR RI 4 SGND SGND 5 RX TX 6 TX RX 7 CTS RTS 8 RTS CTS Minim...

Страница 107: ...UI The Main Menu The Main menu appears after you have successfully connected a terminal emulator to the Console port on the back of the MP 16 and press Enter The Main menu currently has one option Fut...

Страница 108: ...s 5 Local SNMP Community Strings 6 Re initialize Authorized Access List 7 Save Configuration To Non Volatile Memory Enter menu selection and press Return or press Esc to exit Menu Selection 1 9 1 Figu...

Страница 109: ...exit Enter New LAN IP Address Figure B 4 LAN IP Address Setting Enter a new address at the prompt Use the Enter key to accept or the Esc key to cancel and go back to the previous menu LAN IP Subnet M...

Страница 110: ...exit Menu Selection 1 2 1 Figure B 6 WAN IP Address Menu WAN IP Address Type 1 from the WAN IP Address menu to view or change the WAN IP address for the MP 16 WAN IP Address Current WAN IP Address 192...

Страница 111: ...data packets that are not destined for the either of the two subnets directly connected to it The illustration below shows a sample configuration For the sake of simplicity the subnet masks have all...

Страница 112: ...rom its LAN port unless that packet was destined for the subnet attached directly to the WAN port The MP cannot return such a packet to the router Instead it will simply respond with a redirect reques...

Страница 113: ...B 12 SNMP Community String Menu The SNMP community strings restrict SNMP access to the MP 16 Consult your SNMP manager software for information on using community strings SNMP Read Only Public Commun...

Страница 114: ...NVRAM option 7 on the Configuration Menu until you have set a Gateway IP address option 3 that points to either the LAN or the WAN port The following screen is displayed to indicate that your configur...

Страница 115: ...you would type the following ATH1 and press Enter A command string may be a maximum of 60 characters Commands may be typed in upper AT or lower case at but not a combination of both Missing parameter...

Страница 116: ...nds to the Modem Setup In order to use AT commands you must first establish an EIA RS 232 serial connection with the modem Use the following steps 1 Connect a PC to the modem EIA RS 232 port on the ba...

Страница 117: ...l echo may be disabled again by resetting the modem or by using the following command ATE0Q1 NOTE The E n and Q n commands can not be saved to NVRAM Use DIP Switches 3 and 4 to change local echo and r...

Страница 118: ...modem ONLY enters online command mode in response to if DIP switch 9 is ON Using DTR Signaling The modem enters online command mode during a call when DTR is toggled DIP Switch 1 is factory set to the...

Страница 119: ...lays the current values for all AT command variables and S Registers to the terminal screen The I5 command displays the same information for settings stored in NVRAM Remote Access Remote Access allows...

Страница 120: ...ensitive To Display Password Type P n where n is 0 or 1 to display passwords To Disable Password Security If you want to disable an assigned password and thereby disable remote access security use the...

Страница 121: ...ation guard time can be modified with Register S43 These values are set at the host modem 3 The login sequence begins The guest modem will display something similar to the following U S ROBOTICS REMOT...

Страница 122: ...e access login before you have entered the password return online by pressing Ctrl C or typing ATO Enter Remote Viewing and Configuration Once you ve gained remote access you can send AT commands and...

Страница 123: ...Configure data format F0 No parity 8 data bits F1 Mark parity 7 data bits F2 Odd parity 7 data bits F3 Even parity 7 data bits Ending a Remote Access Session One of the four commands below can be used...

Страница 124: ...during remote access and restore the original configuration However commands that have been written to NVRAM with W will not be restored to their previous settings Additionally if you have forced imme...

Страница 125: ...the end of a command to repeat that command continuously Include in a Dial string as follows AT DT 1234567 Enter or AT DT 1234567 Enter The modem enters Repeat mode dials the number waits 60 seconds f...

Страница 126: ...command P Pulse dial Default T Tone dial rotary phone Comma Pause for 2 seconds before continuing to dial Return to Command mode after dialing Dial the letters that follow in an alphabetical phone nu...

Страница 127: ...ommand mode echo enabled Fn Online local echo Modem displays a copy of the data it is transmitting to another system F0 Online echo ON Sometimes called half duplex As the modem transmits data to a rem...

Страница 128: ...ings I10 View Link Security Account status see Link Security section in Chapter 3 I11 Advanced link di agnostics Used for debugging purposes I12 Reserved I13 MNP10 diagnostics I14 V 42ETC diagnostics...

Страница 129: ...perator sent the modem the escape code GSTN General Switch Telephone Network Clear Down The connection was non ARQ and DTR was dropped from one side of the connection or the DISC frame was corrupted d...

Страница 130: ...egotiate the V 42 Detection XID Exchange phase SABME Timeout Set Asynchronous Balance Mode Extended The modems failed this part of V 42 link negotiation Break Timeout Incompatible processing of a Brea...

Страница 131: ...mode Displayed with ATI3 and ATI6 commands K0 Default Display current call duration if online Display last call duration if offline The modem times each call from CONNECT to NO CARRIER and stores the...

Страница 132: ...itional result code indicators A1 ARQ indicator A2 Additional V32 HST mo dulation indicator A3 Protocol indicator Reports HST LAPM or MNP and V42BIS or MNP5 There are no numeric result codes for A3 pr...

Страница 133: ...issued before connecting with another modem the modem can enter online command mode during a call by toggling DTR D1 functions similarly to the escape code except that this setting is independent of...

Страница 134: ...F6 ETC Fixed site template Cellular modems only See Cellular section Chapter 4 Gn Guard Tone This setting applies only to overseas calls at 2400 or 1200 bps British phone switching systems require the...

Страница 135: ...emote computer This is the recommended setting for ARQ mode I3 Hewlett Packard Host mode Applies only to modems attached to an HP mainframe that uses the ENQ ACK proto col Use in ARQ mode only See App...

Страница 136: ...ls above 2400 bps M1 Reserved M2 Reserved M3 Reserved M4 Norm al ARQ mode If an ARQ connection isn t made the modem operates in Normal mode as though it were set to M0 Default M5 The modem enters ARQ...

Страница 137: ...R2 R0 Delay Clear to Send Response after Request to Send signal RTS CTS delay R1 The modem ignores RTS This setting is required if your computer or terminal or software does not support RTS R2 Hardwar...

Страница 138: ...aced at the end of a command string to save new settings as in the following example AT B1 H1 R2X7 A3T W NOTE DIP switch 10 must be set OFF for the modem to load the settings stored in NVRAM at power...

Страница 139: ...ks are sent immediately to the remote system ahead of any data currently in the transmit buffer Unexpedited breaks are sent in sequence with data received from the computer Y0 Destructive unexpedited...

Страница 140: ...enter C1 or C2 C1 Restore configuration Use this command to cancel any configuration changes made during remote access and restore the original configuration However commands that have been written to...

Страница 141: ...n Pn s Specify the following remote access password string s for viewing privileges only n 0 or view and configuration privileges n 1 Pn Display remote access password n T Tone recognition Enables the...

Страница 142: ...Default character is A value of 128 255 disables the escape code S3 13 Stores the ASCII decimal code for the Carriage Return character Valid range is 0 127 S4 10 Stores the ASCII decimal code for the...

Страница 143: ...a true discon nect hanging up by the remote modem S11 70 Sets the duration and spacing in milliseconds of dialed tones S12 50 Sets the duration in fiftieths of a second of the guard time for the escap...

Страница 144: ...ber of errors during a call 5 32 Set backspace key to delete 6 64 Some earlier 2400 bps MNP modems not made by U S Robotics or Microcom were not fully compatible with the MNP protocol If you have diff...

Страница 145: ...e is no data activity on the phone line and at the timeout the modem hangs up S19 0 disables the timer S20 0 Reserved S21 10 Sets in 10 millisecond units the length of Breaks sent from the modem to th...

Страница 146: ...4 Reserved 3 8 Disable 2100 Hz answer tone to allow two V 42 modems to connect more quickly 4 16 See below 5 32 See below 6 64 Reserved 7 128 Unusual software incompati bility Some software may not a...

Страница 147: ...20 2 seconds This gives V 21 modems additional time to connect in V 21 mode before timing out S30 S32 0 Reserved S33 0 Setting this register to 1 S33 1 enables a reduced packet size S34 0 Bit mapped r...

Страница 148: ...unsuccessful login attempts exceeds the limit set by this register the modem returns online and any further login attempts during the remainder of that connection are refused S42 126 Stores the ASCII...

Страница 149: ...ate CI 7 128 Disable V 8 S55 0 Trellis code bit mapped register used primarily by U S Robotics Technical Support for debugging purposes Bit Value Result 0 1 Disable 8S 2D mapping 1 2 Disable 16S 4D ma...

Страница 150: ...D 26 AT Command Reference...

Страница 151: ...the modem is detecting errors and retransmitting the affected data your results will be invalid Ending a Test T0 S18 Issuing the T0 command terminates a test Alternatively set Register S18 to a speci...

Страница 152: ...8 as a test timer as explained earlier 2 Send the modem the following command AT M0 T1 Enter The modem disables error control enters analog loopback AL mode and sends a CONNECT message The MR status l...

Страница 153: ...screen this option verifies only the modem If there are no errors but your problem continues it may be at the comput er interface 1 The modem must be in Command mode If you wish set Register S18 as a...

Страница 154: ...the modem to initiate the new setting 1 Set the modem to M0 to disable error control Establish a connection with the remote modem 2 Bring the modem back to Command mode with the escape code Then send...

Страница 155: ...ms use ITU T V 22 stan dard signaling The test must be performed at 2400 bps or lower If the remote modem does not have the capability or is not set to respond T4 you will get an ERROR result code As...

Страница 156: ...reached If you didn t set S18 type AT T0 to end the test Or send either ATH or the command that resets the modem ATZ The latter two commands end the test and hang up the modem The modem responds OK Da...

Страница 157: ...ur modem You will not see the data on your screen 3 End the test If you set S18 the modem automati cally stops the test when the timer times out If you didn t set Register S18 type AT T0 to end the te...

Страница 158: ...hat modem should be set to S16 8 before it can grant RDL testing Analog Loopback AL S16 1D As with the T AL test do not attempt this test under error control MP modems should be tested at 2400 bps or...

Страница 159: ...ble at all speeds At 300 bps the modem s serial port rate must be fixed B1 and the link rate fixed at 300 bps N1 At rates over 9600 bps just set the modem for a fixed serial port rate B1 To use the te...

Страница 160: ...e Issue an ATZ command to initiate the new switch setting 2 Set the software to 2400 or 1200 bps The ITU T specified RDL signals are defined only for connections at 2400 or 1200 bps 3 Disable error co...

Страница 161: ...r mally would and reset the modem to its normal error control setting M4 or M5 Or if you wish to resume data transmission with the remote modem add the O command to the ATS16 0 string to return the mo...

Страница 162: ...E 12 Modem Testing...

Страница 163: ...itions REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PUR CHASER THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING ANY IMPLIED WARRANT...

Страница 164: ...ll be given a Return Materials Authorization RMA number to help us keep track of your warranty request Once you have received your RMA number follow the following procedures Include proof of the date...

Страница 165: ...s case disconnect the modem until the source of the difficulty is traced Do not use the modem on party or coin telephone lines Radio and Television Interference This equipment generates and uses radio...

Страница 166: ...ohibiting future operation For Canadian Users The Industry Canada formerly DOC label identifies certified equipment This certification means that the equipment meets certain telecommunications network...

Страница 167: ...l device denotes the percentage of the total load to be connected to the telephone loop used by the device without overloading The termination on a loop may consist of any combination of devices subje...

Страница 168: ...F 6 Warranty and Regulatory Information...

Страница 169: ...ynchronous Trellis Coded Modulation TCM V Fast Class V FC 28 8K 26 4K 24K 21 6K 19 2K 16 8K 14 4K bps asynchronous Trellis Coded Modulation TCM V 32 Terbo 21 6K 19 2K 16 8K 14 4K 12K 9600 7200 bps asy...

Страница 170: ...0 bps asynchronous Differential Phase Shift Keying DPSK Bell 103 300 bps asynchronous Frequency Shift Keying FSK ITU T V 21 300 bps asynchronous Frequency Shift Keying FSK Error Control Standards ITU...

Страница 171: ...7200 bps ITU T V 27 ter 4800 2400 bps ITU T V 21 300 bps Serial Port Rates 115 2K 57 6K 38 4K 19 2K 9600 4800 2400 1200 300 bps Phone Line Interface RJ11 Communications Channel Full half duplex on 2 w...

Страница 172: ...k bytes 128 byte option Receive Buffer 2K bytes Command Buffer Capacity 60 characters exclusive of AT prefix Carriage Return and spaces Test Options Analog loopback with test pattern Test pattern Dial...

Страница 173: ...cifications contact Global Engineering Documents at 1 800 854 7179 The document that covers this information is ANSI EIA TIA 592 1993 EIA 592 Asynchronous Facsimile DCE Control Standard May 1993 Optio...

Страница 174: ...0 Hz 1800 Hz 1875 Hz 1875 Hz 1920 Hz 1920 Hz USR V 32terbo V 32 bis V 32 1800 Hz 1800 Hz USR HST 450 bps back channel 375 Hz 1800 Hz USR HST 300 bps back channel 350 Hz 1800 Hz V 32 bis 1800 Hz 1800 H...

Страница 175: ...Hz 1800 Hz 1875 Hz 1875 Hz 1920 Hz 1920 Hz USR V 32terbo V 32 bis V 32 1800 Hz 1800 Hz USR HST 450 bps back channel 1800 Hz 375 Hz USR HST 300 bps back channel 1800 Hz 350 Hz V 32 bis 1800 Hz 1800 Hz...

Страница 176: ...68 UL listed CSA approved DOC certified Power Consumption AC fuse protection Mean time before failure 50 000 hours Auto shutoff in overvoltage and short circuit conditions Power Requirements AC PSU N...

Страница 177: ...Technical Specifications G 9 Maximum Input Power 160 watts 1 3 A Typical Input Power 16 port 94 watts 0 8 A Size 12 6 x 17 5 x 3 5 inches 32 0 x 44 5 x 8 9 centimeters...

Страница 178: ...G 10 Technical Specifications...

Страница 179: ...verride 2 20 Carrier Detect CD AT Command D 9 CD See Carrier Detect Chassis 3 2 Chassis MIB 3 6 Clear to Send CTS Pin assignments A 2 Clock Modem D 7 Command Tables MIB 3 2 Commands See AT Commands Co...

Страница 180: ...and Mode Local DIP Switch 4 2 20 EIA RS 232 Pinouts A 1 A 4 EIA RS 232 serial cable kits 2 3 Enterprise number 3 1 Entities 3 6 Entity Index 3 7 Error Control AT Command D 12 Escape Code DIP Switch 9...

Страница 181: ...0 Online command mode C 4 P Packet Size reducing D 23 Phone jacks 2 18 Phone Numbers storing D 15 Pinouts EIA RS 232 ports A 1 A 4 R Rackmount Installations 2 5 Radio and Television Interference F 3 R...

Страница 182: ...and 3 20 Support F 2 T TCM See Total Control Manager SNMP Technical Support F 2 Telephone Jacks 2 18 Templates cellular 4 7 Templates modem configuration D 9 Test Pattern E 9 Testing modems E 1 ThinNe...

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