Testing the Remote Modem | Black Box 3600 MODEM guide

Test Mode Operation

Testing the Remote Modem

Use LDL, RDL, and RDL/TP in the online data mode to test the remote modem and phone line. Enter the escape sequence after making a connection to return to command mode. The appropriate test command, &T3, &T6, or &T7, can then be entered to initiate an online test.

Local Digital Loopback &T3

After making the data connection, enter the escape sequence to return to command mode. Entering &T3 puts the local modem in digital loopback. The remote operator can now send a test message which is looped back to the remote terminal screen.

If the test timer (S18) was loaded before issuing the &T3 command the local modem exits the test after the specified number of seconds and returns to command mode. If not, enter &T to exit the test. Enter the command to return to online data mode.

The local modem receiver connects to its transmitter so received data is retransmitted to the remote site.

If Digital Bilateral Loopback is enabled locally, the local DTE is looped back to itself (Figure 7-3). If disabled, the local DTE receives a constant mark.

Figure 7-3. Local Digital Loopback with Bilateral Loopback Enabled

Modem 3600

7-5

Image 119

Black Box 3600 MODEM manual Testing the Remote Modem, Local Digital Loopback &T3

Contents

3600 Trademarks $2334253/426 #$%&*+ #$%&,+ $$$ $$$$ $&% $$% $%%-% $&% % %&$ $ !+ #**# # 3! #41% #**# # 3! #41%&, +2 #4!# 3C $ 35 F + *&*A1 $ @ $A = 01BB Page $%% $ +,-*./0 1 **-*2**,3/0 Page Page Page Page #26 Page Page Page 555,5,65E##E%E% % Page #5 S7-# Shelf-Mount Units Chapter Introduction Data Mode Features Internet Browser Fax ModeSoftware Communications Software Class 1 Fax Communications Software Physical DescriptionFunctional Rear Panel 115 Vac Model Card Version of the Modem Modem 3600 Card Mounting Accessories Chapter Installation DTE Connection Electrical InstallationAC Power Connection DC Power Connection Digital Interface Signals Pin 232D Signal Description Pin Signal Description s DCE Pin Signal Descriptions Telephone Line Connection Dial-up Connection 115 Vac Model Dial Mode Pstn Connection Dial jack Leased Line Connection TELSET/LEASED Line Jack Leased Line Connection 115 Vac Model MD1000C Connections Shelf-Mount MD1000C Installation Option Selection Power-UpChapter Getting Started Autodialing from Front Panel Autodialing from a Terminal with the AT CommandsPlacing a Call Dialing with a Standard Telephone Ending a Call Answering a Call Reasons for Call Terminatio n Condition Reasons for Call Termination Reasons for Call Termination Condition Page LED Descriptions Chapter Front Panel Operation LCD Menu Operation LCD Menus Reg LCD Menu Option Selectio n Main Menu Submenu Submenu Item Option Com Reg LCD Menu Option Selection Submenu Main Menu Option Com Reg Lease line only † Dial line only Modify Change DTE Speed DTE=DCE Modify Change DTE Dial Method Async Modify Change DTE RTS/CTS Delay Password of 0000 disables front panel security Front Panel Security Front Panel Operation Operation Modes Chapter AT CommandsCommand Categories Online Command Mode Sending Commands to the ModemOffline Command Mode Autobaud Guidelines for Creating Command Statements Creating a Command Statement AT Backspace Key Command Statement BufferRepeating a Command a Monitor Display Group Commands Response CommandsNumbered Commands Negotiation Displays W Command OperationDigit / Word Selection Response Displays Q Call Progress / Connect Speed Messages Number Code Application *RC Command Code Set Number Operation Code Message Meaning Response Number Codes / Messages DTE rate 31200 bps Connect 300/V42 Connect 300/MNP5 Dialing D Dial Commands Wait for Second Dial Tone W Tone Dialing TPulse Dialing P Insert Long Pause Wait for 5 Seconds of Silence @ Switching to Answer Mode after Dialing RRemaining in Command Mode Hook Flash Voice Calls Switching from Voice to DataDialing a Stored Telephone Number Sn Autodial Number Location *AUn Caller ID *ID AT Command Answer aManual Answer Autoanswer S0 Caller ID Message s Modem sends this message Distinctive Ring *DR Data Carrier Detect &C Terminal Interface Commands Data Terminal Ready &D Data Set Ready &S Request to Send / Clear to Send &R Serial Port Ring Indicator Pin 22 \R Local Character Echo E General CommandsChanging from Data Mode to Command Mode +++ DTE Controlled Fallback Rate Pin 23 *FB Fast Disconnect H2, H3 Online Character Echo FHanging Up H, H1 Speaker Control M Speaker Volume LEprom Check Bis Guard Tones &G Asynchronous / Synchronous Mode Selection &MReturn Online O Long Space Disconnect Y Make / Break Dial Pulse Ratio &P Modulation *MM Synchronous Transmit Clock Source &XRate Selection Thresholds *TH Asymmetric Bit Rates *AS Maximum DCE Speed %B Minimum DCE Speed %L Automatic Rate Adaption %R Auto Retrain %E Product Revision Level %V Manual Rate Adaption *RR Fast Train *FT Online Quick Reference $HProduct Serial Number $V Talk / Data *DA Dial Line Transmit Level *TDn Disable AT Command Set *NTWire Operation Private Line Operation Wire Dial-up Operation Wire Leased Line Operation Dial Backup Dial / Leased Line &L Dial Backup *DBReturn to Leased Line from Dial Backup *LB Manual Dial Backup *LD Stored Profile Configuration CommandsConfiguration Profiles Active Profile Powerup Option Set &Y Storing a Configuration &W Load Factory Options &Fn Reset to Stored Configuration Z Storing a Telephone Command Line &Zx=n, *CNx,n, *ND View Configuration Profiles/Received Signal Options &V Retaining / Restoring Options *RO Remote ConfigurationSoft Download Password %P1, $Y Remote Security Code %P= Remote Configuration Security Enabling/Disabling Remote Configuration *RA Entering Remote Configuration %T=, &T Remote Configuration Format *RF Remote Configuration DTE Speed *RB Remote Configuration Saving or Discarding Options *RQ Page Chapter Protocols Ccitt V.42 bis Error Control ProtocolReliable Mode Data Compression Auto-Reliable ModeNormal Mode Constant Speed Interface Flow Control Direct ModeProtocol Commands Disconnect Buffer Delay %D Serial Port DTE Constant Speed \J Optional Detection Phase \M Auto-Reliable Fallback Character %An Operating Mode \N Serial Port Flow Control \Q Data Link Flow Control \G XON/XOFF Pass Through \X Break Control \Kn Inactivity Timer \T Set Auto-Reliable Buffer \C Maximum Reliable Block Size \ATransmit Break / Set Break Length \B 42bis Data Compression %C Test Categories Chapter Test Mode OperationDiagnostic Test s Offline Online Terminating a Test in Progress &T Test Commands Operation Local Analog Loopback &T1 Testing the Local Modem Local Analog with Test Pattern Local Analog Loopback with Self Test &T8 Local Digital Loopback &T3 Testing the Remote Modem Remote Digital Loopback &T6 Grant/Deny RDL Request &T4, &T5 Test Pattern %T Remote Digital Loopback with Self Test &T7 DTE Controlled Local Analog Loopback Pin 18 *LA DTE Controlled Remote Digital Loopback Pin 21 *RD Autocallback Security Chapter Security Remote Operation Low Security OperationOperating without Low Security Operating with Low Security LCD Indication of Security Low Security CommandsPasswords Local Operation High Security Security Levels Superuser Disabling High Security $D High Security CommandsDefault Passwords Enabling High Security $EH=pw Set User Callback Number $Cn=m Setting Passwords $Pn=pw$pwSet Security Levels $Ln=m Display / Reset Illegal Access Attempt Counters $M, $Mn, $M Extended Features $WDisplay Extended Feature Status $W? Display User Status $S? Factory Reset $F=pw$pwRemoving a User $Rn Security Status $E? Verify User Information $In, $IBn Local Logon Command $n=pwLocal Logoff Command $$ Remote Logon Procedure $n=pw Security Fax Operation Chapter Fax Operation Fax Autoanswer Fax DefaultsModem Initialization Stored Fax Profile Fax Associated OptionsClass 1 Details Dial Command D Class 1 Commands On Hook H Answer Command a Class 0 Operation +FCLASS=0 Service Class Indication +FCLASS?Service Class Capabilities +FCLASS=? Off Hook H1 Values for Fax Modulatio n Modulation Speed Receive Silence +FRS=TimeFax Transmit and Receive Modes Values for Fax Modulation Speed Facsimile Transmit +FTM=ModFacsimile Receive +FRM=Mod Test Supported Range of Values +FTx=?, +FRx=? Hdlc Transmit +FTH=ModHdlc Receive +FRH=Mod Fax Autoanswer +FAA= Class 1 Result Code +FCERRORCommand Description Binary File Transfer Registers Chapter Status Registers Changing S-Register Values Changing Register Values Sn=v, Sn=v Register Operation Sn?, Sn? Ring Count S1 Individual Bit Command Sn . # =v Backspace Character S5 Escape Character S2End-of-Line Character S3 Line-Feed Character S4 Dtmf Tone Duration S11 Pause Interval for Comma S8Carrier Detect Time S9 Lost Carrier Detect Time S10 S15 Bit Value Command DescriptionS13 Bit Mapped S14 S19 Test Timeout S18System Tests S16 S17 Comman Bit Value Description Bit Mapped S21 S24 Bit Mapped S22Bit Mapped S23 Bit Mapped S27 RTS/CTS Delay S26Lookback Timer S28 DTR State Recognition S25 S31 Bit Value CommandBit Mapped S29 Bit Mapped S30 S33 DTR / Dial Backup Number to Dial S35Remote Configuration Escape Character S41 Bit Mapped S32 Xoff Character from DTE S45 Remote Configuration Guard Time S42S43 XON Character from DTE S44 Automatic Rate Adaption Threshold S53 Leased Line Transmit Level S52 S55 \Q3 Enable bilateral CTS/RTS flow controlDisable modem port flow control Flow Control S54 Bit Mapped S57 Inactivity Timer S58Compression Control S56 101 \K5 Break option Break Control S59 Bit Mapped S60 Enable auto retrainMNP compression enabled Disable auto-reliable data buffer S65-66 Disconnect Buffer Delay S62Maximum Transmit Block Size S63 Auto-Reliable Fallback Character S64 S68 Link Speed Status S67 10010 B18 33,600 bps DCE Independent Speed S69 111 \N7 Lapm or MNP or native auto Reliable Operating Mode S70Operating Mode Status S71 \M1 Enable V.42 fast detect Callback Retry S75 Password Timeout S73Callback Delay S74 Bit Mapped S72 Break Length S79 Callback Retry Delay S76Autocallback Timer S78 Lockout Threshold S77 Serial Port or DTE Speed S80 Negotiation Status S82 00001 DisabledEnable negotiation status Minimum DCE Speed S81 Modulation Type S88 Enable any key abortBit Mapped S84 S85-S87 S92 S94 Current Modulation S91 S98- S100 Settings S95Asymmetric Settings S96 Bit Mapped S97 Chapter Bis Autodialer Software Guidelines Autodialer Command Strings and Parameters Invalid Responses Parameters Function Bis Commands and ResponsesDial Parameters Program Number Command PRN ann...n Dial Command CRN nn...n Sepacall progress messages Intermediate Call Progress ResponseDial Stored Number CRS a CNX@nnnnnBPS LSNann...nsepann...n Request List of Stored Numbers RLNDisregard Incoming Call DIC EtbsysystxLSNsp Seprcall progress messages Connect Incoming Call CICRedial Last Number CRR n Link Number by Address PRL ab Request List of Linked Numbers RLL LSLalsepal Modem Options Command PRO xxxyy00Request List of Version RLV EtbspspstxLSLsp Modem 11-11 Restore Factory Settings PRP n Save Current Settings PRK Request List of Stored Options RLO xxx yy Options V.25 Autodialer Options Definition Settings Default Modem 11-15 Ebcdic Ascii Modem 11-17 Test Bilateral Commanded Loop General Chapter MaintenanceFuse Replacement Maintenance Calling Technical Support Size Appendix a Specifications Modulation Speed Modem Data Rates Carrier Detect Level Page Pin Function Appendix B Phone Jack DescriptionsPage Jumper Option Selection Appendix C Hardware Options Figure C-1. Cover Removal Figure C-2. Jumper Location for Ground Option Replacing the Cover Fault Isolation Procedure Appendix D Fault Isolation Procedure Part Modem and Telephone Line Check Modem Page Command Reg Description Appendix E Command Index and Defaults Wait for 2nd dial tone S7 value Command Reg Description Restore factory configuration 1 † EBCDIC, NRZ1 Command Reg Description Command Reg Description Command Reg Description BER Command Reg Description DCE Switches modem to talk mode † Command Reg Description Command Reg Description Command Description Fax Command Description ValueModulationSpeed High Security Command Description Low Security †cannot be executed from remote configuration mode Modem Remote Configuration Commands Data bits, mark parity, 1 stop bit Reg Function Factory Set Default RO=Read only RW=Read or write Modem Default Synchronous Description Command Bis Dialer Commands Synchronous Description Command Response Message Meaning Response Messages INC Dial Line Options Tone dial Asynchronous Dial-up with V.42 bis Protocol AT&F or AT&F1Modem Options DCE rate 33600 Modulation automode Asynchronous Dial-up without V.42 bis Protocol AT&F2 Factory Option Set # Factory Option Set #3 Modem Options DCE rate Synchronous 4-wire Leased Line AT&F4 Factory Option Set #5 Asynchronous 4-wire Leased Line withV.42bis Protocol AT&F5 Factory Option Set # Synchronous 2-wire Leased Line Normal Originate AT&F7 Synchronous 2-wire Leased Line Forced Answer AT&F8 Synchronous V.25bis Dialer AT&F9 Factory Option Set #9 Appendix F Ascii and Ebcdic Characters NUL ESC ET end of transmission ACK0 DEL Hardware Options Hardware Options Hardware Options Hardware Options Appendix G Abbreviations and Acronyms Abbreviations and Acronyms PBX Xmit What You Need Appendix H Flash Upgrade Troubleshooting Service and Support Page Index Index-2V.3600 3600Index-3 Index-4V.3600 3600Index-5 Index-6V.3600 3600Index-7 Index Index-8V.3600