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8

The AT Commands

8.1 Introduction

This chapter contains a description of all the AT commands that are
incorporated in your modem. The commands are listed alphabetically,
with symbols in the following sequence:

&

*

/

% ''

–

Full instructions for entering AT commands are given in Section 3.3.

In addition to the commands that must have the AT prefix, there is one
which does not require the prefix or the terminator:

A/

Repeat Last Command(s)

This sequence will cause the modem to repeat the previous
command or command string.

X450-310851 Issue 2

8-1

Rev.0

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Содержание syncro 1496

Страница 1: ...X450 310851 Issue 2 0 1 Rev 5 Unit 15 Riverside Business Centre Victoria Street High Wycombe Bucks HP11 2LT Web www casecomms com Email sales casecomms com Tel UK 08700 263 740 Tel International 44 0...

Страница 2: ...st be used to ensure compliance with this declaration Case Communications Limited has made all reasonable efforts to ensure the accuracy of the content of this document but the information contained h...

Страница 3: ...e Syncro 1496 and 1496R V 32bis modems PART 1 of the manual has been laid out in a sequence that will allow you rapidly to become familiar with the essential features of the modem and to get it operat...

Страница 4: ...a line feed Ctrl represents a control character hold down the CONTROL key whilst pressing the required character Commands entered at the keyboard are shown in Modern Bold font for example ATDP123 Res...

Страница 5: ...Data DTE 2 2 2 2 2 Controlling the Modem 2 2 2 3 Installing the Standalone Modem 2 3 2 3 1 Power Supply Connection 2 3 2 3 2 DTE Port Connection 2 3 2 3 3 Command Port Connection 2 3 2 3 4 Telephone L...

Страница 6: ...ntroduction 4 3 4 1 2 Factory Configuration List 4 4 4 1 3 Factory Configuration Specifications 4 6 4 2 User Configurations 4 21 4 2 1 Default User Configurations 4 22 4 2 2 Customised User Configurat...

Страница 7: ...nt Panel 6 9 6 4 4 Manual Dial Backup via Software Command 6 9 6 5 Rate Adaption Fallback Fallforward 6 10 6 5 1 Manual Fallback 6 10 6 5 2 Auto Fallback 6 10 7 Diagnostic Facilities 7 1 7 1 Introduct...

Страница 8: ...ne Modem C 5 C 1 3 UK Telephone Number Blacklist C 6 C 1 4 Restrictions on Use of S Registers C 7 C 2 Statutory Instructions for Belgium C 8 C 3 Statutory Instructions for Denmark C 10 C 4 Statutory I...

Страница 9: ...D 6 D 3 3 Link Options D 7 D 3 4 Line Connection D 8 Figures 1 1 The Standalone Modem Front Panel 1 5 1 2 The Standalone Modem Rear Panel 1 7 1 3 The Rackmount Modem Front Panel 1 9 2 1 Standalone Mo...

Страница 10: ...X450 310851 Issue 2 0 10 Rev 1...

Страница 11: ...PART 1 BASIC OPERATION Chapter 1 Introduction Chapter 2 Installation Chapter 3 Getting Started X450 310851 Issue 2 1 1 Rev 0...

Страница 12: ...X450 310851 Issue 2 1 2 Rev 0...

Страница 13: ...er 2 wire leased line or PSTN Synchronous full duplex operation over 4 wire leased line Trellis coded modulation for enhanced performance Near and remote end echo cancellation in V 32 and V 32bis mode...

Страница 14: ...mands may be entered or calls monitored while the modem is in use Comprehensive test functions to V 54 initiated by AT command or by front panel switches Modem Management The modem may be controlled b...

Страница 15: ...V 32bis 1 2 1 The Indicators The indicators are on the front panel of the modem which is shown in Figure 1 1 RUN A continuous light means that power is on and the modem is functioning correctly A flas...

Страница 16: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 17: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 18: ...NE 1 3 metre cable fitted with a plug for connection to your leased line LINE 2 Not used LINE 3 3 metre 4 way line cord fitted with a plug to connect to the dial up network X450 310851 Issue 2 1 8 Rev...

Страница 19: ...a a a a a a a a a a a TE a a a a a a a a a a a a a a a a AL a a a a a a a a a a a a a a a a a a a a a a a a RDL a a a a a a a a a a a a a a a a FB a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 20: ...X450 310851 Issue 2 1 10 Rev 0...

Страница 21: ...and terminal with a V 24 RS 232 C serial port For the standalone modem a mains power socket outlet installed near the modem easily accessible and capable of supplying 1 0 amps at the nominal voltage a...

Страница 22: ...Controlling the Modem To control your modem you will need to send AT commands to it V 25bis commands are a special case discussed in Chapter 10 For sending AT commands you require a separate asynchro...

Страница 23: ...ectly rated for your mains supply ensure that the modem is switched off 0 position then plug the mains lead into the mains supply Do not switch on until all other connections have been made 2 3 2 DTE...

Страница 24: ...nous DTE a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 25: ...rd and the rack system Connections to the DTE are made from the back of the rack See Appendix B 2 4 3 Command Port Connection The connections for the modem s command port are via the 96 way connectors...

Страница 26: ...ashes on an error has been detected In this case recheck the installation if no mistakes are found refer to your supplier 8 Press the AL and TEST buttons to release them 2 5 2 Rackmount Modem 1 Fit th...

Страница 27: ...8 Press the AL and TE buttons to release them 9 Secure the modem in the rack X450 310851 Issue 2 2 7 Rev 0...

Страница 28: ...X450 310851 Issue 2 2 8 Rev 0...

Страница 29: ...d terminal 2 Switch on the modem The LED indicators on the front panel will reflect the status of the DTE interface TXD RXD and OH should be off 3 Load the default factory configuration 0 as follows M...

Страница 30: ...ommand language with simple working examples We recommend you to read this even if you have used AT commands before The AT commands are listed alphabetically in Chapter 8 3 2 2 The V 25bis Command Set...

Страница 31: ...ates that it has recognised the AT This sequence is useful for checking that the modem is responding correctly 3 3 2 Example Commands A useful command is C which will display a summary of your modem s...

Страница 32: ...ng a Command Line If you make a mistake when entering a command line you can use the backspace key to reposition the cursor and you can then correct the mistake by overtyping 3 3 6 Command Option Numb...

Страница 33: ...dialling for example ATD9 0123456789 CR 3 4 2 Call Progress During the progress of the connection various messages may appear on the screen RINGING while the ringing tone can be detected from the remo...

Страница 34: ...hould appear on the screen For advice on what to do next consult the documentation for the service accessed Alternatively disconnect the call as described below 3 4 4 Disconnection To disconnect the c...

Страница 35: ...d so that it will automatically answer an incoming call after three rings and connect to the data DTE When the call is completed the modem will be ready to receive further calls or for you to make out...

Страница 36: ...X450 310851 Issue 2 3 8 Rev 0...

Страница 37: ...r 4 Modem Configurations Chapter 5 Advanced Configuration Chapter 6 Operational Facilities Chapter 7 Diagnostic Facilities Chapter 8 The AT Commands Chapter 9 The S Registers Chapter 10 V 25bis Comman...

Страница 38: ...X450 310851 Issue 2 4 2 Rev 0...

Страница 39: ...onfigured factory configurations that cover standard applications They are described in this section Four more standard applications are stored in the user configuration locations described in Section...

Страница 40: ...V 32bis 14400 bps 4 wire leased line answer mode 7 V 32bis 14400 bps 4 wire leased line originate mode 8 V 33 14400 bps 4 wire leased line operation 9 V 32bis 14400 bps PSTN manual dial 10 V 32bis 14...

Страница 41: ...1 2 1 The way these signals are used is controlled by the configuration in use In the following descriptions of the configurations each control signal is described as being in one of three modes Thes...

Страница 42: ...SABLED L1 Line Mode 2W LEASE LINE E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1 Switches ENABLED B1 Carrier...

Страница 43: ...tone OFF D1 Restore on DTR ENABLED L1 Line Mode 2W LEASE LINE E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1...

Страница 44: ...nection and return to leased line operation is by AT command at either end of the link A default password has been stored in the modem If this is deleted the modem will omit the password check and mer...

Страница 45: ...S1 Switches ENABLED B1 Carrier CONSTANT X0 Timing Source INTERNAL C1 Cable Equaliser ENABLED B0 Pin 23 Fallback DISABLED D1 DCD Threshold 33dB E7 Remote Control USER LINE F35 Fallback Format 12000 V3...

Страница 46: ...sed line has recovered the dial backup connection is automatically broken and transmission is restored to the leased line The telephone number for automatic dial backup must be stored in the modem in...

Страница 47: ...S1 Switches ENABLED B1 Carrier CONSTANT X0 Timing Source INTERNAL C1 Cable Equaliser ENABLED B0 Pin 23 Fallback DISABLED D1 DCD Threshold 33dB E7 Remote Control USER LINE F35 Fallback Format 12000 V3...

Страница 48: ...ORIGINATE G0 Guard tone OFF D0 Restore on DTR DISABLED L0 Line Mode 2W PSTN E1 Security Control ENABLED Q3 Operation Mode SYNC MANUAL DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon...

Страница 49: ...de ORIGINATE G0 Guard tone OFF D0 Restore on DTR DISABLED L0 Line Mode 2W PSTN E1 Security Control ENABLED Q3 Operation Mode SYNC MANUAL DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality M...

Страница 50: ...FF D0 Restore on DTR DISABLED L3 Line Mode 4W PRIVATE LINE E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1 Swi...

Страница 51: ...e OFF D0 Restore on DTR DISABLED L3 Line Mode 4W PRIVATE LINE E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1...

Страница 52: ...DTR DISABLED L3 Line Mode 4W PRIVATE LINE E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1 Switches ENABLED B1...

Страница 53: ...y Out Control DISABLED A0 Leased Line Mode ORIGINATE G0 Guard tone OFF D0 Restore on DTR DISABLED L0 Line Mode 2W PSTN E1 Security Control ENABLED Q3 Operation Mode SYNC MANUAL DIAL N3 Remote Logon OR...

Страница 54: ...tore on DTR DISABLED L0 Line Mode 2W PSTN E1 Security Control ENABLED Q2 Operation Mode SYNC DTR DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1 Switches ENABLED B1 Ca...

Страница 55: ...ry configuration 11 No number is stored in N8 indicating that it is the answering end of the link The PSTN backup configuration should be loaded into directory location N10 With user configuration Z1...

Страница 56: ...ED S1 Switches ENABLED B1 Carrier CONSTANT X0 Timing Source INTERNAL C1 Cable Equaliser ENABLED B0 Pin 23 Fallback DISABLED D1 DCD Threshold 33dB E7 Remote Control USER LINE F27 Fallback Format 12000...

Страница 57: ...tions effectively an extension of the factory configurations in Section 4 1 Details of these are in Section 4 2 1 Should none of the factory or default configurations be exactly what you require you c...

Страница 58: ...e Mode ANSWER G0 Guard tone OFF D0 Restore on DTR DISABLED L0 Line Mode 2W PSTN E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality M...

Страница 59: ...ne Mode 2W PSTN E1 Security Control ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 0mS Q0 Quality Mon LL DISABLED S1 Switches ENABLED B1 Carrier CONSTANT X0 Timing...

Страница 60: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 61: ...trol ENABLED Q1 Operation Mode SYNC ASYNC DIAL N3 Remote Logon ORIG ANS R0 RTS CTS Delay 15mS Q0 Quality Mon LL DISABLED S1 Switches ENABLED B1 Carrier CONSTANT X0 Timing Source INTERNAL C1 Cable Equa...

Страница 62: ...gurations To achieve this 1 Choose the factory or user default configuration that is closest to the configuration you want see Sections 4 1 and 4 2 1 and load it as described in Section 4 3 2 Amend th...

Страница 63: ...y 11 User 0 User 1 User 2 User 3 Out Out Out Out In In In In Out Out Out Out In In In In Out Out In In Out Out In In Out Out In In Out Out In In Out In Out In Out In Out In Out In Out In Out In Out In...

Страница 64: ...a a a a a View Config C a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 65: ...LL COMMAND SAVE COMMAND Factory 0 Factory 1 Factory 2 Factory 3 Factory 4 Factory 5 Factory 6 Factory 7 Factory 8 Factory 9 Factory 10 Factory 11 User 0 User 1 User 2 User 3 F0 F1 F2 F3 F4 F5 F6 F7 F8...

Страница 66: ...Switch on the modem 4 Release the DATA button after 3 seconds The message RESTART 199 will be displayed on a terminal connected to the command port This clears all customised user configurations and...

Страница 67: ...mine the kind of display produced by various functions and to activate deactivate various modes in which the modem may operate A Originate or answer mode E Echo commands Q Quiet mode S Front panel swi...

Страница 68: ...nterface are Q DTR dialling control R RTS CTS control R RTS clamp W DSR control O DSR control while tests active Q DSR DCD and CTS controls in V 25bis mode Various timeout control commands affect the...

Страница 69: ...ld M Signal quality summary Primary Format The F command is used to select the communications format that is to be used for the primary data rate Fallback Format The fallback commands F B and F are us...

Страница 70: ...mands These commands are used to select suitable modem line characteristics B Constant carrier when on line C Cable equaliser G T 2 equaliser P Echo protect tone Y Training sequence X450 310851 Issue...

Страница 71: ...allows remote configuration Then use the following commands ATDnnnnn Dial remote number AT X Up load a copy of the remote modem s current active configuration After the message MONITOR GRANTED is dis...

Страница 72: ...dial backup from either a wrong number or a malicious caller When the link is initially established the master modem sends its key W to the remote modem This is checked against the remote modem s own...

Страница 73: ...a a a a a a a a a a a a a a a Leased Line a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a Modem A a a a a a a a a a a a a a a a a a a a...

Страница 74: ...e log on both the local and remote modem s command ports will display the message REMOTE CONTROL GRANTED Once the remote log on has been granted all commands entered on the command port of the local m...

Страница 75: ...5 8 V 25bis Mode The following command allows you to select V 25bis mode so that you can enter V 25bis commands described in Chapter 10 V Select V 25bis command mode X450 310851 Issue 2 5 9 Rev 0...

Страница 76: ...X450 310851 Issue 2 5 10 Rev 0...

Страница 77: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 78: ...By selecting one of the locations 0 7 from the front panel buttons see Section 6 2 1 By raising DTR on the V 24 interface when your modem will dial the number stored in location 0 see Section 6 2 3 By...

Страница 79: ...configuration if required The commands concerned with dialling are D Dial a number modifiers apply see Section 6 2 4 DN Dial a stored number with changed configuration if required H Go on hook Q Auto...

Страница 80: ...TR command Q must be set to Q2 for synchronous operation 2 The DTE must control the DTR line raising it to request a connection 3 When the modem detects that the DTR line has been raised it connects t...

Страница 81: ...he following conditions apply to this feature The blacklist operates on PSTN calls only Twenty blacklisted numbers can be accommodated at a time Each number dialled with the U modifier is entered onto...

Страница 82: ...answer tone to the remote modem It is possible to alter the number of rings the modem has to detect before automatically answering the call by adjusting the contents of the S register S0 Setting the S...

Страница 83: ...owever the modem will only initiate dial backup if a telephone number is stored in N8 If there is no number stored in position N8 the modem will act as a slave modem and wait to be dialled from the ma...

Страница 84: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a Master Modem ATN8 Z telephone number CR a a a a a a a a a a a a a a a a a a a...

Страница 85: ...rier for a period greater than that stored in S10 then it initiates a dial backup When the dial backup calls have been established and data is routed via the PSTN the leased line is monitored for reco...

Страница 86: ...acility which allows your modem to change its connection speed in response to the prevailing line conditions The relevant commands are Q Leased line quality monitor Q PSTN quality monitor G Good signa...

Страница 87: ...lf test feature allows a pattern generator to send test sequences through the modem These are error checked and when the test is terminated the modem responds with the number of errors encountered Tes...

Страница 88: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 89: ...a a a a M a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 90: ...n appropriate T option is set by using the ENTER button Using an External Test Source 1 Press the AL button 2 The DCD indicator should light and the RUN indicator flash If the DSR indicator lights the...

Страница 91: ...ENTER button Using an External Test Source 1 Establish a connection with the remote modem which must be ITU T V 54 compatible 2 On the local modem depress the TEST button followed by the RDL button t...

Страница 92: ...mmand ATS18 n n 1 to 255 seconds 3 Enter the command AT T1 without self test or AT T8 with self test and press RETURN 4 If you selected T1 without self test you must transmit a test message This shoul...

Страница 93: ...est or AT T7 with self test and press ENTER 5 If you selected T6 without self test you must transmit a test message This should be echoed back via the remote modem s digital loopback connection If you...

Страница 94: ...ttempt to access them with the modem off line or during training will result in the message ERROR being returned Analogue Parameters are displayed in the following format Local Modem Analogue Paramete...

Страница 95: ...han 40 dBm would be a large amount of far end echo 09 Phase Roll Phase roll is caused by the combination of two effects Far End Echo and Frequency Shifts The effect of phase roll will cause bursts of...

Страница 96: ...level of about 27 dB These figures will vary with different line types and speed of transmission In general the larger the figure the better a very low signal to noise will indicate a poor communicati...

Страница 97: ...re not supported by the modem the code 000 will be returned S1 DTE Input Pins Result displays status of V 24 DTE pins Bit Set Definition 0 0 Pin 20 low Data Terminal Ready OFF 1 Pin 20 high Data Termi...

Страница 98: ...See notes below 2 0 See notes below 3 0 Normal full speed operation 1 Fallback operation 4 0 Not used 5 0 Modem not in dial backup 1 Modem in dial backup and connected 6 0 Not used 7 0 Dial backup en...

Страница 99: ...button In 5 0 AL button Out 1 AL button In 6 0 RDL button Out 1 RDL button In 7 0 FB button Out 1 FB button In S11 Modem Connection Speed Result displays modem connection speed Speed Decimal value Off...

Страница 100: ...ated when another test result is received When a test starts this value is set to 000 While the test is in operation this counter will be updated every time an error is detected allowing a user to mon...

Страница 101: ...for restoral 1 Leased line ready for restoral Bit 7 0 Dial backup not completed yet 1 Dial backup complete and operational S20 Display Combination Displays results from S1 to S3 and S10 to S17 see S9...

Страница 102: ...X450 310851 Issue 2 7 16 Rev 0...

Страница 103: ...with symbols in the following sequence Full instructions for entering AT commands are given in Section 3 3 In addition to the commands that must have the AT prefix there is one which does not require...

Страница 104: ...disabled Default A1 Loss of RTS timeout A2 Anti streaming timeout A3 Loss of RTS and anti streaming timeouts A1 is normally only used with PSTN modems It causes the modem to disconnect when RTS goes...

Страница 105: ...ng calls or to bring out of service a modem from a hunting group B0 Normal connections Default B1 Busy out the line B2 Busy out the line and initiate local analogue loopback B1 or B2 will busy out the...

Страница 106: ...State of pin 23 ignored Default B1 State of pin 23 actioned High Primary rate Low Fallback rate B Initiate Dial Backup If manual dial backup is enabled by the command L1 being set and a telephone num...

Страница 107: ...nstructed An example of a number with modifiers would be to dial through a PABX where the prefix to an outside line is 9 and a pause is needed before the number e g ATD9 0123456789 Dialling Modifiers...

Страница 108: ...ecall ATDp nn where p is the prefix and nn the telephone number U Redial Until Answered This modifier causes the modem to keep dialling the number until it gets an answer within the limit set in S reg...

Страница 109: ...ult D1 Carrier threshold 33 dB to 38 dB D2 Carrier threshold 26 dB to 31 dB D3 Carrier threshold 16 dB to 21 dB For PSTN applications the normal carrier signal level is 43 dBm For leased line applicat...

Страница 110: ...nfiguration control facilities you require at the local modem i e the one you are currently configuring An appropriate selection is also required at the remote modem s a Will the local modem accept re...

Страница 111: ...s Format This command is used to determine which modulation scheme and primary data rate are used by the modem A fallback rate may also be specified see F F4 V 22 1200 bps F5 V 22bis 2400 bps F13 V 29...

Страница 112: ...fallback rate determined by F F0 Fallback disabled Primary rate used Default F1 Fallback selected Fallback rate used G Guard Tone Enable Normally only used in V 22 V 22bis modes this command allows yo...

Страница 113: ...s firmware ROM The response shows the value as four hex digits I2 Validates that the checksum is correct by comparing it with a stored value Returns the response OK or ERROR I3 Displays the firmware r...

Страница 114: ...operation L1 Enable 2 wire leased line operation L3 Enable 4 wire leased line operation When you select leased line operation the connection to the line is made via the cord labelled LINE 1 When you s...

Страница 115: ...0 and 255 minutes Unconditional abort will cause a disconnection after the timeout in S37 expires regardless of data activity M Signal Quality Summary This command displays the current signal quality...

Страница 116: ...e immediately after the command but before the phone number and any instructions connected with the phone number Thus with the phone number alone remarks are situated as follows AT N1 Z Head Office 01...

Страница 117: ...red to factory configuration 1 F1 and you want it to change to user configuration 3 Z3 each time the modem dials 0123456789 the procedure is as follows Enter the command AT N1 Z 0123456789 Ctrl F A Co...

Страница 118: ...dial connection to log on to it see Section 5 7 N0 Remote log on is disabled N1 Remote log on enabled originate only N2 Remote log on enabled answer only N3 Remote log on enabled originate and answer...

Страница 119: ...point at which a fallback to a lower transmission speed will take place Pn where n is the threshold value 0 15 in S register S28 Q Quiet Mode This command determines whether response codes are sent t...

Страница 120: ...answer or autodial when DTR is low but will disconnect if DTR does not go high after the time defined in S register S25 If the modem is off line and DTR goes low the modem will wait for the time defin...

Страница 121: ...This command allows you to control the state of CTS from your modem R0 The RTS CTS delay is set by the modem modulation see the F and F commands when on line and ready for data Default R1 RTS is igno...

Страница 122: ...t functions S0 Front panel switches disabled S1 Front panel switches enabled with AL selecting an analogue loop Default S2 Front panel switches enabled with AL busying the telephone line S3 Front pane...

Страница 123: ...used in conjunction with S register timer S18 which determines the length of time that a test is performed T0 Stops test currently in progress T1 Selects Local Analogue Loopback without self test T4 E...

Страница 124: ...n increments of 1 second or 0 1 of a second depending on the setting of the B command T Test Pattern This command enables you to select whether the error injection facility is enabled or not T0 MARKS...

Страница 125: ...TR This is used for hosts which on raising DTR expect DSR to be returned by the modem Overridden by O when in test mode W Inactivity Data Monitor Timer Base This command sets the timer base for S regi...

Страница 126: ...eed X3 The modem detects busy tone and displays the connection speed X4 The modem detects busy and dial tones and displays the connection speed X5 The modem detects busy and ringback tones and display...

Страница 127: ...ed 41 BUSY TONE 42 CONNECT 12000 Connected at 12000 bps 43 CONNECT 14400 Connected at 14400 bps 50 PRIVATE LINE FAILED 51 PRIVATE LINE READY FOR RESTORAL 52 PSTN 1 54 DIALLING 56 AUTORESTORAL PRIMARY...

Страница 128: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 129: ...ion to become the active configuration Zn where n is the user configuration number 0 3 Z Modify the Remote Configuration This comand allows you to alter the locally held copy of the remote modem s act...

Страница 130: ...X450 310851 Issue 2 8 28 Rev 0...

Страница 131: ...These may be sub divided into three types Counters and other whole numbers Counters are absolute values A zero setting will usually disable the counter Timers often expressed as values from 0 to 255...

Страница 132: ...ollowing commands may be used to inspect and change the contents of S registers S Display S register summary Sn Display single S register setting Sn Set an S register to a value O S register output fo...

Страница 133: ...detect time Validation time Default 10 10 0 255 0 1 seconds Loss of DCD to hang up B1 selects 1 second units Default 40 12 0 255 0 5 seconds Escape code guard timer Default 50 18 0 255 seconds Test ti...

Страница 134: ...X450 310851 Issue 2 9 4 Rev 0...

Страница 135: ...s an end of text character hex 03 Characters should be sent as consecutive 8 bit words of 7 data bits and odd parity HDLC synchronous character oriented V 25bis commands must be entered via the DTE po...

Страница 136: ...mand Display delayed numbers RLF V 25bis command Display blacklisted numbers RLI V 25bis command Request identity number RLN V 25bis command Display telephone directory Description CIC Connect incomin...

Страница 137: ...d instructs the modem not to echo the commands back to the DTE PRI Program identity number PRIiii where iii is the identity number up to 20 characters PRN Store a telephone number and its modifiers a...

Страница 138: ...nal response Indicates a connection to a remote modem OFL Additional response Indicates a disconnect from line VAL V 25bis response Valid command entered Description CFI Call fail indication Indicates...

Страница 139: ...DPSTTT EOL See the note following LSN for an explanation of the format LSF List of blacklisted numbers This is the response to the RLF command it is only relevant when the U dial modifier has been use...

Страница 140: ...delayed call is F to represent a blacklisted call P is the delay time in minutes for a delayed call S is the number of dialled attempts that have failed TTT is the time that a blacklisted call has to...

Страница 141: ...6 state QAM V 29 compliant 9600 7200 4800 bps Receive levels 0 to 43 dBm Carrier Threshold 16 dB to 48 dB DCD level programmable Operation 4 wire full duplex 2 wire full duplex 2 wire simulated switch...

Страница 142: ...one detection for PABX use Progress tones and answer tone detection Autoanswer ITU T V 25 compliant Busy Busy out via AT command or DTR Disconnect Call cleared selectable on loss of DTR and or no carr...

Страница 143: ...48 VDC 0 5A max DC source must be SELV Environment Temperature operating 5 to 40 C storage 25 to 55 C Relative humidity 5 to 95 non condensing Altitude to 3000 metres Dimensions Standalone 45 mm high...

Страница 144: ...X450 310851 Issue 2 A 4 Rev 0...

Страница 145: ...and Cables The standalone modem has two serial ports The DTE port is used to pass user data and may also be used to enter V 25bis commands The command port is used to enter AT commands only X450 3108...

Страница 146: ...rt Parallel to comm port IN 15 TXCLK Transmit Clock TX data clock from DCE OUT 16 RXD Command Port Parallel to comm port OUT 17 RXCLK Receive Clock RX data clock from DCE OUT 18 Analogue loop Make Bus...

Страница 147: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 148: ...a a a a a a a a a a a a a a a a a a a a a a a a a DTE a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 149: ...ions for Belgium C 8 C 3 Statutory Instructions for Denmark C 10 C 4 Statutory Instructions for Finland C 12 C 5 Statutory Instructions for France C 14 C 6 Statutory Instructions for Holland C 16 C 7...

Страница 150: ...payphone which was first available before the liberalisation of payphones in May 1988 This modem may be connected to a payphone approved under the arrangements for liberalisation these payphones carry...

Страница 151: ...e requirements of the standard set out in BABT SITS 82 005S D and BABT SITS 82 01 C k All apparatus connected to this modem and thereby connected directly or indirectly to British Telecom PSTN or Priv...

Страница 152: ...it then ceases to conform to the standards against which approval was granted b This modem is only approved for compatible PBXs The supplier of your modem should be consulted for an up to date list o...

Страница 153: ...y to British Telecom for installation of sockets where the wiring does not belong to British Telecom Note Where apparatus is to be connected to PBX extension wiring by means of a plug the user may plu...

Страница 154: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 155: ...to manual redialling on the PSTN using AT commands or front panel buttons nor to connections on leased lines When external Communication Software is used to control the modem automatic redialling mus...

Страница 156: ...S Register Settings The following S register settings and defaults apply to Belgium Register Settings Default Min Max Description S6 8 3 20 Wait for dialtone S7 40 0 80 Wait for carrier S36 4 1 4 Blac...

Страница 157: ...W1 8dBm 4dBm 2dBm 1dBm OFF ON ON OFF PSTN Level 6dBm Leased Line Level 6dBm Belgium Part Numbers To ensure you have the correct modem for use in Belgium please check that it is labelled with one of th...

Страница 158: ...Description S36 10 1 10 Blacklisting Max dial attempts Black List Setting 10 seconds delay before the first retry 2 minutes delay between subsequent attempts After 10 attempts a manual restart is req...

Страница 159: ...umbers To ensure you have the correct modem for use in Denmark please check that it is labelled with one of the following part numbers X450 12021102 Standalone X450 21661102 Rackmount X450 310851 Issu...

Страница 160: ...gister Settings The following S register settings and defaults apply to Finland Register Settings Default Min Max Description S0 2 Rings to Answer S6 4 Wait for dialtone S7 60 60 60 Wait for carrier S...

Страница 161: ...ed with product EMC Approval Requirements EMC WARNING To comply with the EMC approval regulations the cable part number listed above must be used or a cable of a similar specification Case Communicati...

Страница 162: ...Default Min Max Description S0 2 2 Rings to Answer S6 8 6 12 Wait for dialtone S7 40 35 90 Wait for carrier S8 1 12 Pause time for comma S9 8 6 9 DCD detect time S10 40 Loss of DCD to hang up S25 1 1...

Страница 163: ...ied with product EMC Approval Requirements EMC WARNING To comply with the EMC approval regulations the cable part number listed above must be used or a cable of a similar specification Case Communicat...

Страница 164: ...Register Settings The following S register settings and defaults apply to Holland Register Settings Default Min Max Description S6 8 20 Wait for dialtone S7 40 90 Wait for carrier S8 5 1 5 Pause time...

Страница 165: ...d with product EMC Approval Requirements EMC WARNING To comply with the EMC approval regulations the cable part number listed above must be used or a cable of a similar specification Case Communicatio...

Страница 166: ...he following S register settings and defaults apply to Ireland Register Settings Default Min Max Description S6 8 10 Wait for dialtone S7 40 Wait for carrier S8 1 4 Pause time for comma S10 20 20 Loss...

Страница 167: ...8dBm 4dBm 2dBm 1dBm ON OFF OFF ON PSTN Level 10dBm Leased Line Level 14dBm Ireland Part Numbers To ensure you have the correct modem for use in Ireland please check that it is labelled with one of th...

Страница 168: ...er Settings Default Min Max Description S36 3 3 Blacklisting Max dial attempts Black List Setting 5 seconds delay before the first retry 60 seconds delay between subsequent attempts After 4 attempts a...

Страница 169: ...umbers To ensure you have the correct modem for use in Italy please check that it is labelled with one of the following part numbers X450 12021108 Standalone X450 21661108 Rackmount X450 310851 Issue...

Страница 170: ...ollowing S register settings and defaults apply to Luxembourg Register Settings Default Min Max Description S6 8 20 Wait for dialtone S7 40 90 Wait for carrier S8 5 1 5 Pause time for comma S36 14 14...

Страница 171: ...dBm 4dBm 2dBm 1dBm ON OFF OFF ON PSTN Level 9dBm Leased Line Level 13dBm Luxembourg Part Numbers To ensure you have the correct modem for use in Luxembourg please check that it is labelled with one of...

Страница 172: ...Max Description S10 20 20 Loss of DCD to hang up Black List Setting 5 seconds delay before the first retry 60 seconds delay between subsequent attempts After 10 attempts a 60 minute delay before the n...

Страница 173: ...ulations the cable part number listed above must be used or a cable of a similar specification Case Communications Ltd will not accept liability for use of non compliant cables Norway Part Numbers To...

Страница 174: ...d defaults apply to Portugal Register Settings Default Min Max Description S6 20 20 Wait for dialtone S7 60 60 Wait for carrier S8 5 5 Pause time for comma S10 20 20 Loss of DCD to hang up S36 4 4 Bla...

Страница 175: ...8dBm 4dBm 2dBm 1dBm ON OFF OFF ON PSTN Level 9dBm Leased Line Level 9dBm Portugal Part Numbers To ensure you have the correct modem for use in Portugal please check that it is labelled with one of th...

Страница 176: ...k Card S Register Settings The following S register settings and defaults apply to Spain Register Settings Default Min Max Description S6 8 20 Wait for dialtone S7 30 60 Wait for carrier S8 8 8 Pause...

Страница 177: ...W1 8dBm 4dBm 2dBm 1dBm ON OFF ON OFF PSTN Level 10dBm Leased Line Level 10dBm Spain Part Numbers To ensure you have the correct modem for use in Spain please check that it is labelled with one of the...

Страница 178: ...X450 310851 Issue 2 C 30 Rev 0...

Страница 179: ...X450 310851 Issue 2 C 31 Rev 0...

Страница 180: ...6 31 Syncro 1496 Rack Card SY1496R S Register Settings The following S register settings and defaults apply to Sweden Register Settings Default Min Max Description S6 20 20 Wait for dialtone S7 90 Wai...

Страница 181: ...ed with product EMC Approval Requirements EMC WARNING To comply with the EMC approval regulations the cable part number listed above must be used or a cable of a similar specification Case Communicati...

Страница 182: ...X450 310851 Issue 2 C 34 Rev 0...

Страница 183: ...competent engineers In order to comply with national regulations it may be necessary to re test the modem to ensure it meets the requirements of the relevant approved authority following any modificat...

Страница 184: ...a a a a a a a a Front Buttons a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a Terminal Block a a a a a...

Страница 185: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a Not Used a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 186: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 187: ...d version of the standalone modem is designed to operate on an exchange PABX battery The supply requirements are 24 48 VDC 0 5A max DC source must be SELV The modem power connection is via a 2 metre c...

Страница 188: ...a a a a a a a a a a a a a a a a a a a LK 5 a a a a a a a a a a a a a a a a a a a a a a a a LK 6 a a a a a a a a a a a a a a a a a a a a a a a a a a a a LK 7 a a a a a a a a a a a a 1a a a a a a a a a...

Страница 189: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 190: ...a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a...

Страница 191: ...to a BT line Product Type Syncro 1496 or Syncro 1496R Product Description Modem BABT Approval No NS 1404 23 K 601153 1496 NS 1404 23 K 601151 1496R For this purpose I require the following installati...

Страница 192: ...Please fill in the address of your local office and add a postage stamp X450 310851 Issue 2 D 10 Rev 0 POSTAGE MUST BE AFFIXED British Telecom Local Area Telephone Office...

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