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Paradyne COMSPHERE 3910 Installation And Operation Manual

3900 series point-to-point/multipoint modems
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COMSPHERE
3900 SERIES MODEMS
MODELS 3910 AND 3911
POINT-TO-POINT/MULTIPOINT
INSTALLATION AND OPERATION MANUAL
Document No. 3910-A2-GN32-30
November 1996

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Summary of Contents for Paradyne COMSPHERE 3910

  • Page 1 COMSPHERE 3900 SERIES MODEMS MODELS 3910 AND 3911 POINT-TO-POINT/MULTIPOINT INSTALLATION AND OPERATION MANUAL Document No. 3910-A2-GN32-30 November 1996...
  • Page 2 Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. Further , Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.

  • Page 3: Important Safety Instructions

    Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. – Do not use the telephone to report a gas leak in the vicinity of the leak. 3910-A2-GN32-30 November 1996 Safety Instructions...
  • Page 4 COMSPHERE 3900 Series Modems Notices November 1996 3910-A2-GN32-30...

  • Page 5: Table Of Contents

    ........Selecting Factory Configuration Options Removing and Replacing Model 3910 Modems Model 3911 Modem Installation .
  • Page 6 ....... . . November 1996 3-15 3-25 3-25 3-30 3-46 ..... . 3-53 3-54 3-62 3-64 3-65 5-14 6-13 6-16 6-18 3910-A2-GN32-30...
  • Page 7 Glossary Index 3910-A2-GN32-30 Menu Tree .........
  • Page 8 COMSPHERE 3900 Series Modems Figure Model 3910 Model 3911 Model 3910 Rear Panel and Power Supply Installing a Model 3911 Modem Circuit Pack Lock Model 3910 DCP Optional SDCP, Model 3911 Faceplate, and Optional SDU 391x Series LCD and Keypad...
  • Page 9 Table Model 3910 and Model 3911 DCP LEDs SDCP LEDs Top-Level Menu Status Common Operational Messages Dial Access Security Messages Health and Status Messages Backup Status Screens Valid Ranges for VF Thresholds Valid Dial Command Modifiers DTE Interface Configuration Options...
  • Page 10 ..................November 1996 Page 3910-A2-GN32-30...

  • Page 11: Preface

    Chapter 2 provides instructions for installing the 391x Series modems. Chapter 3 provides the information required to operate the Model 3910 using the diagnostic control panel and the Model 3911 using the COMSPHERE 3000 Series Carrier’s shared diagnostic control panel (SDCP).

  • Page 12: Related Documents

    3000-A2-GA31 3610-A2-GZ45 3910-A2-GK41 Call your sales representative to order additional product documentation. viii COMSPHERE 3000 Series Carrier, Installation Manual 3600 Hubbing Device Feature Number 3600-F3-300, Installation Instructions COMSPHERE 3900 Series Modems, Models 3910 and 3911, Installation Instructions November 1996 3910-A2-GN32-30...

  • Page 13: Introduction

    Four-wire/two-wire point-to-point or four-wire multipoint operation. Four-wire/two-wire leased-line modulations: V.32 terbo (19200 and 16800 bps), V.32bis (14400, 12000, 9600, 7200, and 4800 bps), V.32 (9600 and 4800 bps), Paradyne Point-to-Point Diagnostic (1200, 2400 bps), Trellis Multipoint (19200, 14400, 9600, 7200, 4800, and 2400 bps), V.22bis (2400 bps), V.27bis (4800 and 2400 bps), V.33 (14400 and...

  • Page 14: Multipoint Applications

    COMSPHERE 391x Series Models The 391x Series family is available in two models: the Model 3910, a 4-wire/2-wire standalone modem, and the Model 3911, a carrier-mounted version of the standalone unit. Both models offer a variety of modulation schemes and network enhancements while still providing reliable, high-speed data transmission using the latest in modem technology.

  • Page 15: Model 3910

    Standalone Model 3910 4-Wire/2-Wire Modem The standalone Model 3910 modem (Figure 1-1) is capable of either 4-wire/2-wire leased-line or dial operation. The modem is controlled using either AT commands or the diagnostic control panel (DCP). The DCP consists of a liquid crystal display (LCD), three function keys, four directional keys, and a row of 13 LED status indicators.

  • Page 16: Model 3911

    The user interface to any Model 3911 is through the shared diagnostic control panel (SDCP), an optional feature which operates in a CONNECTOR EIA232/V.24 EDGE CARD CONNECTOR FUTURE 496-14178b Figure 1-2. Model 3911 November 1996 BACK PLATE EIA232/V.24 CONNECTOR GROUNDING FUTURE 3910-A2-GN32-30...

  • Page 17: Government Requirements And Equipment Return

    DCP on the Model 3910. For a better understanding of DCP operation, refer to Chapter 3, DCP Operation. The COMSPHERE 3000 Series Carrier has a total of 17 slots. The first slot, Slot 0, is reserved for the shared diagnostic unit (SDU) while the remaining 16 slots can house up to 16 Model 3911 modems, or a combination of Model 3911 modems and other units.
  • Page 18 Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com Via Telephone: Call our automated call system to receive current information via fax or to speak with a company representative.
  • Page 19 Load Numbers of all devices does not exceed 100. If your equipment is in need of repair, refer to the procedure in the Government Requirements and Equipment Return section earlier in this chapter. 3910-A2-GN32-30 CAUTION November 1996 Introduction...

  • Page 20: Technical Specifications

    Leased-Line Modulations: Paradyne V.32 terbo (19200, 16800 bps) CCITT V.32bis (14400, 12000, 9600, 7200, 4800 bps) CCITT V.32 (9600, 4800 bps) Paradyne Trellis Multipoint (19200, 14400, 9600, 7200, 4800, 2400 bps) CCITT V.22bis (2400 bps) CCITT V.27bis (4800, 2400 bps) CCITT V.33 (14400, 12000 bps)
  • Page 21 6 watts (typical, including power supply, speaker off) 4 watts (typical, each card) (Speaker consumption is approximately 1 watt at high volume.) 2.5 pounds (1.14 kg) Model 3910 (without power supply) 1.0 pounds (0.45 kg) Model 3911 2.1 inches (5.4 cm) Model 3910 7.1 inches (18.1 cm) Model 3911...
  • Page 22 Table 1-1 (3 of 3) Description 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400 1200 bps 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200, 600, 300 bps CCITT V.42 MNP 4-2 CCITT V.42bis MNP Class 5 November 1996 3910-A2-GN32-30...

  • Page 23: Modem Installation

    ........Connecting Cables to the Model 3910 Modems .

  • Page 24: Model 3910 Modem Installation

    Customer-Supplied Equipment The following customer-supplied equipment is required to complete a data communications system using the Model 3910 modem: A DTE with an available EIA-232-D serial port. A standard EIA-232-D cable with a DB-25-P (plug) connector at one end to attach to the modem.

  • Page 25: Model 3910 Rear Panel And Power Supply

    The rear panel of the Model 3910 modem (Figure 2-1) has the following switches and connectors: An ON/OFF power switch. An 8-pin DIN type power receptacle (PWR) for the dc power supply. An 8-pin modular keyed jack (LEASED) for 4-wire/2-wire leased lines.

  • Page 26: Dte Connection

    A Permissive mode telephone line is usually terminated with a USOC RJ11C jack. Model 3910 Dial Backup Connection For the Model 3910, use the following procedures to connect the modem to the dial backup network interface: 1. Insert the 6-position, 4-conductor modular plug into the jack labeled DIAL (Figure 2-1).

  • Page 27: Network Management System Connection

    NMS (Figure 2-1). Refer to Document Number, 3610-A2-GZ45, 3600 Hubbing Device Feature Number 3600-F3-300, Installation Instructions, for a description of the 3600 Hubbing Device. Installation for the 3910 is the same as for the 3610 DSU. 2. Connect the 3600 Hubbing Device to the network management channel (Figure G-4 in Appendix G).

  • Page 28: Selecting Factory Configuration Options

    The LCD now displays Sav EditArea to. key until Factory comes into view, then press the F1 key to display the key until the appropriate factory preset template appears on the LCD, and November 1996 3910-A2-GN32-30...

  • Page 29: Troubleshooting

    To regain AT command control, select, via the DCP, the Async Dial factory preset configuration as described earlier in Using the DCP . 3910-A2-GN32-30 key until the appropriate configuration area appears on the LCD, then press NOTE November 1996...
  • Page 30 4 for Sync Leased (Originate) 5 for Async Leased (Answer) 6 for Async Leased (Originate) 7 for TMp (Control) 8 for TMp (Trib) NOTE 0 for Active (Saved) 1 for Customer 1 2 for Customer 2 NOTE November 1996 3910-A2-GN32-30...

  • Page 31: Removing And Replacing Model 3910 Modems

    If the modem is to be removed for service, return it to the company using the procedures described in Government Requirements and Equipment Return in Chapter 1. 5. Install the replacement modem as described in the Model 3910 Modem Installation section of this chapter, and configure it the same way as the modem being replaced.

  • Page 32: Installing A Model 3911 Modem

    SDCP. The cursor appears in the carrier selection entry. Select ) key until the carrier number you want appears on the LCD. key to position the cursor on the slot selection entry. ) key until the slot number you want (1–16) appears on the November 1996 3910-A2-GN32-30...

  • Page 33: Circuit Pack Lock

    7. Configure the modem as described in the Selecting Factory Configuration Options section earlier in this chapter. 3910-A2-GN32-30 key to place the SDCP in direct communication with the selected Select Figure 2-3.

  • Page 34: Removing And Replacing Model 3911 Modems

    It is not necessary to power down the carrier to remove and replace a Model 3911 modem. Perform the following steps: 1. Rotate the circuit pack lock until the release tab is exposed. 2. Press down on the release tab and pull the modem away from the carrier’s backplane. 2-12 CAUTION November 1996 3910-A2-GN32-30...

  • Page 35: Dcp Operation

    ........Model 3910 Diagnostic Control Panel .

  • Page 36: Overview

    Top-Level menu tree. Diagnostic Control Panels There are two types of diagnostic control panels (DCP), the DCP on the standalone Model 3910 modems and the shared diagnostic control panel (SDCP), an optional feature, used with the Model 3911 installed into a COMSPHERE 3000 Series Carrier.

  • Page 37: Model 3910 Dcp

    Model 3910 Diagnostic Control Panel The diagnostic control panel (DCP) of the Model 3910 modem (Figure 3-1) contains status indicators, pushbutton-type keys, an LCD, and speaker grill. COMSPHERE 3910 Model 3911 Faceplate and Shared Diagnostic Control Panel (SDCP) The shared diagnostic control panel (SDCP), Figure 3-2, is used to manage carrier-mounted Model 3911 modems.

  • Page 38: Status Indicators

    The 391x Series modems’ status indicators continuously provide information on the modem’s operating condition. All of the status indicators on the Model 3910 appear on the DCP (Figure 3-1), whereas the status indicators for the carrier-mounted Model 3911 are located on the Model 3911’s faceplate, the SDCP, and the SDU faceplate (Figure 3-2).

  • Page 39: Model 3910 And Model 3911 Dcp Leds

    The standalone Model 3910 modem’s DCP has 13 light-emitting diodes (LEDs), and the carrier-mounted Model 3911 has 16 LEDs. These LEDs are listed and described in Table 3-1. LEDs specific to one model type have the appropriate model number shown in the table.

  • Page 40: Diagnostic Control Panel Operation

    LCD. Use the key to scroll in the indicated direction to display more selections onto the LCD. Table 3-2 SDCP LEDs Indicates HIDDEN CHOICE INDICATOR Leased:19.2 Status Configure FUNCTION KEYS November 1996 RETURNS DISPLAY TO TOP-LEVEL MENU RIGHT SCROLL 3910-A2-GN32-30...

  • Page 41: Hidden Choice Indicators

    Range indicator, refer to VF Threshold Update in this chapter. Keypad The DCP on the Model 3910 has seven keys while the optional SDCP of the COMSPHERE 3000 Series Carrier has eight keys. The additional key on the carrier is the connect the SDCP to a specific slot in the carrier.

  • Page 42: Menu Structure

    Used to control the modem’s dial access security. — Used to access and control a remote 3900 Series modem. November 1996 Displays the current status of the modem along with the data rate and the error control mode. Security Tlk/Data Remote 3910-A2-GN32-30...

  • Page 43: Top-Level Menu Status

    *** The Alarm Status Messages only appear when the Normal Operation Status Messages appear; the LCD alternates between the two message sets. **** The Training message may also appear in normal Trellis Multipoint (TMp) operation. 3910-A2-GN32-30 Table 3-3 (1 of 4)
  • Page 44 The line is being used by the associated telephone. The answering modem did not answer within the time limit specified by the No Answer Timeout configuration option. The network tones (if any) could not be interpreted by the modem. November 1996 3910-A2-GN32-30...
  • Page 45 Download Mode Result Frmware Upgrade RemClone Failed 3910-A2-GN32-30 Table 3-3 (3 of 4) Top-Level Menu Status Indicates The modem cannot dial because DTR is OFF. The modem cannot dial because it is running a Test. The modem has aborted the call because it cannot detect a dial tone.

  • Page 46: Common Operational Messages

    A broadcast cloning of firmware has completed. You must look under the Control branch for cloning results. This message appears on the local modem’s LCD. The modem has performed a reset in response to an ATZ command. Table 3-4 Common Operational Messages Indicates November 1996 3910-A2-GN32-30...

  • Page 47: Dial Access Security Messages

    Control, Test, Call Setup, Talk/Data, Security, and Remote. These branches are discussed in this chapter except for the Configure branch which is reserved for Chapter 4, DCP Configuration, and the Security branch which is reserved for Chapter 6, Dial Access Security. 3910-A2-GN32-30 Table 3-5 Dial Access Security Messages...
  • Page 48 Trellis Multipoint modulation. V22b indicates V.22bis modulation. V27b indicates V.27bis modulation. indicates V.33 modulation. indicates V.29 modulation. indicates V.22 modulation. indicates V.23 modulation. indicates V.21 modulation. 212A indicates Bell 212A modulation. 103J indicates Bell 103J modulation. November 1996 key. , or 3910-A2-GN32-30...

  • Page 49: Status Branch

    FarEchDel Port1 EchoFreqOff NonLnearDist Retrains These parameters appear for V.32 terbo, V.32bis, and V.32 modulations. These parameters appear for Trellis Multipoint modulation. To access Status from the Top-Level menu, select Status. 3910-A2-GN32-30 “Status” Control Test SubHS Call_Setup Options Record Backup...

  • Page 50: Device Health And Status (Devicehs)

    If alarms are present, press the appropriate function key to view the messages associated with these alarms (Table 3-6). If needed, press the present, the word Normal appears on the LCD. 3-16 Status: > DeviceHS Device HS: > Major Minor key to scroll to additional alarm types. If no alarms are November 1996 3910-A2-GN32-30...

  • Page 51: Health And Status Messages

    On Lease Backup Primary Line Bad Backup Line Good Data Blocked PSTN Test Fail 3910-A2-GN32-30 Table 3-6 (1 of 2) Health and Status Messages Indicates A device/self test has failed. The probable cause is a modem hardware problem or diagnostic memory failure.
  • Page 52 The DTE port’s LSD signal is in an alarm condition. The modem is in an Antistreaming condition. (Refer to the Streaming DTE message in the Major Alarm section of this table.) The modem’s DTE port has been disabled. key. November 1996 key. To exit and return to the 3910-A2-GN32-30...
  • Page 53 No Signal appears on the LCD. SigQual RcvLevel Sig/Noise NrEchLvl FarEchLvl FarEchDel EchoFreqOff 3910-A2-GN32-30 Status: > DeviceHS Status:VF > SigQual=Excelent Signal Quality displays the condition of the VF line. Possible values are Excelent (Excellent), Good, Fair, Poor, or No Signal. These values appear for V.32 terbo, V.32bis, and V.32 modulations.
  • Page 54 Serial number is an 8-digit number that identifies the modem. Model number is an alphanumeric number that identifies the modem as either a Model 3910 or Model 3911 modem. Firmware revision level is an alphanumeric number that identifies the level of firmware loaded in the modem.
  • Page 55 DIAL (see Figure 2-1 in Chapter 2). The jack labeled LEASE is the APL primary interface and accepts either 2-wire or 4-wire APL. The jack labeled DIAL is the backup interface and accepts either 2-wire APL (Dual Lease Line) or Dial lines. 3910-A2-GN32-30 Status: Identity key until DTE appears. Select DTE.
  • Page 56 The third column provides information about the inactive line condition. XXXX represents the condition code of the inactive line. 3-22 key until Backup appears. Status: Backup Status:Backup > Line=Pri 4w APL key to display the next screen. Status:Backup < Bkup:2wAPL=Good November 1996 3910-A2-GN32-30...

  • Page 57: Backup Status Screens

    The Options Status function displays all optional firmware features currently installed in the modem. If no firmware options are installed, None_Installed appears on the LCD. To access Options from the Status branch, make the following sections: Press the 3910-A2-GN32-30 Table 3-7 Backup Status Screens Possible Inactive/Backup Line Condition Good indicates that line continuity is detected.
  • Page 58 > V.29 V.33 key to scroll other features into view. key. Status: < Options Record key until Record appears. Select Record. Record Status Display Clear Record Number 1 Modem O.K. November 1996 key. To exit and return to the 3910-A2-GN32-30...

  • Page 59: Configure Branch

    The Poll List (Plist) branch of the Top-Level menu allows you to identify downstream modems in order to support health and status polling and download broadcasting. The maximum number of devices is 32 on the secondary channel and 64 on the diagnostic channel. Status Configure Display Clear 3910-A2-GN32-30 key. “Status” Test SubHS Call_Setup Control...
  • Page 60 If there are no modems in the poll list when you select Display, the message Poll List Empty! appears on the second line of the LCD. 3-26 Leased:19.2 PList Control key until PList appears. Select PList. Poll List: > Display Clear NOTE Poll List:Disp yyyyyy November 1996 3910-A2-GN32-30...

  • Page 61: Change

    Change allows you to add modems to the Active poll list (Active), delete modems from both Active and Skip poll lists (Delete), and move modems from the Active to the Skip poll list. 3910-A2-GN32-30 Displays the network management address of the modem in the poll list.

  • Page 62: Add

    To access Add from the Plist branch, make the following selections: Press the 3-28 Poll List:Chang > Active Delete key until Skip appears.) Poll List:yyyyyy key. The address automatically increments upon Poll List: Change key until Add appears. Select Add. November 1996 keys to position the cursor key. 3910-A2-GN32-30...

  • Page 63: Acquire

    The address field (xxx) increments sequentially from 001 to 256 as polls are transmitted from the modem to the downstream modem(s). To be added to the modem’s poll list, the device must respond to a poll after receiving its address. The Acquire function can be canceled by selecting Abort. 3910-A2-GN32-30 Poll List:Add Command Complete key.

  • Page 64: Control Branch

    Reset To access Control from the Top-Level menu, make the following selections: Press the 3-30 Poll List:Acquir Num Acquired key. “Status” SubHS Call_Setup Test Control (3910 (3911 only) only) EIA_LEDs Make_Busy Service_Line RemoveMakeBusy DiscServiceLine Leased:19.2 Control Test key until Control appears. Select Control.

  • Page 65: Speaker

    Reset causes the modem to stop operation and perform a complete program restart. The modem begins the power-up test sequence that ends with the Top-Level menu displayed on the LCD. Configuration options stored in an Active (Saved) configuration area are copied to the Active (Operating) configuration area. 3910-A2-GN32-30 Control: > Speaker...

  • Page 66: Data Stream

    Press the F2 key again to enable the modem’s data stream. 3-32 Control: > Speaker Reset Control: Data_Stream key until Data_Stream appears. Select Data_Stream. Data Stream Port1 Disable key to clear the message. Data Stream Port1 Enable November 1996 3910-A2-GN32-30...

  • Page 67: Eia Leds

    To exit this function and remain in the Control branch, press the Top-Level menu, press the The Port1 interface is the only display allowed on the 3911 modem, therefore, the entire EIA LEDs branch is masked. 3910-A2-GN32-30 key. Control: EIA_LEDs key until EIA_LEDs appears.

  • Page 68: Make Busy/Remove Make Busy

    Press any function key to select RemoveMakeBusy. The message Command Complete appears on the LCD. 3-34 WARNING Control: Make_Busy key until Make_Busy appears. Select Make Busy. Make Busy Command Complete Control: RemoveMakeBusy November 1996 key once and the key until 3910-A2-GN32-30...

  • Page 69: Service Line/Disconnect Service Line

    PC controller to be connected to the modem’s DTE port as well as special download software. Any downloads using this selection are intended to be performed by customer service personnel only. 3910-A2-GN32-30 Control: Service_Line key until Service_Line appears. Select Service_Line to switch the modem from its key until DiscServiceLine appears.

  • Page 70: Selecting Clone Remote

    After completing these checks, proceed to the section titled Implementing a Clone Remote Operation, which follows the descriptions of multipoint cloning operations. 3-36 NOTE Control: Download_Code key until Download_Code appears. Press any function key to select DwnLoadSoftware > Clone_Remote November 1996 3910-A2-GN32-30...

  • Page 71: Clone Remote In Broadcast Configurations

    DC-connected control modem(s) using the Active Poll list. Proceed to the section titled Implementing a Clone Remote Operation, which follows the descriptions of multipoint cloning operations. 3910-A2-GN32-30 Choose DLL Type > SC_Clone Choose DLL Type >...

  • Page 72: Clone Remote In Multipoint Configurations

    Misc section in Chapter 4 for a description of the remote access password (RemAccssPasswrd) configuration option and the network management address (NetMngmtAddress) configuration option. 3-38 Choose DLL Type > DC_CloneResults key until DC_CloneResults appears to view the DC Clone Results Pass NOTE November 1996 3910-A2-GN32-30...
  • Page 73 ( _ ) under the digit that will be incremented. Press the F2 ( ) key to increment the digit. Press Enter (Ent) to select the modem that will receive the download. After completing these actions, proceed to the section titled Implementing a Clone Remote Operation. 3910-A2-GN32-30 Choose DLL Type > Single Multiple...

  • Page 74: Implementing A Clone Remote Operation

    3-40 Choose DLL Type > Single Multiple Choose DLL Type > MPtCloneResults key until the MPtCloneResults screen appears to MPtCloneResults Pass WARNING November 1996 3910-A2-GN32-30...
  • Page 75 RemClone Failed and the bottom line displays one of the following messages: Incompat Modulat No Response Access Disabled Password Invalid No Circuit After successful establishment of a Remote Cloning Download session, the following screens appear. 3910-A2-GN32-30 Warning:Download Abort_Download key to display the Reprogram_Remote selection. Warning:Download Reprogram_Remote RemClone Status Establish Remote The modems are connected, but are using a modulation scheme other than V.33, V.32 terbo, V.32bis, V.32, V.29, or TMp.

  • Page 76: Vf Thresholds Update

    (For another example of editing and saving, refer to the Editing and Saving a Configuration Option section in Chapter 4.) 3-42 RemClone Status Bank1:xxxx/yyyy Control: < VF_Thresh_Update key until VF_Thresh_Update appears. Press any function key to select VF Thresholds Edit Save Reset November 1996 3910-A2-GN32-30...
  • Page 77 Press the Select the F2 ( ) key to change the number above the cursor ( 9 ) to 0. If you want to modify additional VF thresholds, select Nxt. 3910-A2-GN32-30 RSL High (- dBm) RSL High (- dBm) NOTE...
  • Page 78 Edit/Save screen. VF Thresholds Edit Save Reset Save VF Thresh Thd Out of Range key to return to the VF Threshold VF Thresholds Edit Save Reset key. November 1996 key. To exit and return to the 3910-A2-GN32-30...

  • Page 79: Valid Ranges For Vf Thresholds

    Receive Signal Level Low Signal to Noise Ratio Non-Linear Distortion Retrains Signal Quality Near Echo Far Echo 3910-A2-GN32-30 Table 3-8 Valid Ranges for VF Thresholds Valid Ranges 0 dBm to –15 dBm –16 dBm to –50 dBm 5 dB to 40 dB...

  • Page 80: Test Branch

    Abort ends any test that is in progress and brings the modem back to the normal mode of operation. Confirmation is provided by the Command Complete message. 3-46 “Status” Control Call_Setup SubHS Test Self Loc_Analog_Loop Rem_Digital_Loop Leased:19.2 Control Test key until Test appears. Select Test. November 1996 Tlk/Data Security Remote Loc_Digital_Loop Pattern 3910-A2-GN32-30...

  • Page 81: Self

    Failure alarm message when the remote modem’s Device Health and Status (DeviceHS) branch is accessed. To access Self from the Test branch, make the following selection: Select Self. (All LCD cells and DCP status indicators light.) 3910-A2-GN32-30 Test: > Abort...

  • Page 82: Local Analog Loopback

    To access Loc Analog Loop from the Test branch, make the following selections: Press the 3-48 NOTE key. Figure 3-4. Local Analog Loopback Test: Loc_Analog_Loop key until Loc_Analog_Loop appears. Press any function key to start this test. November 1996 key. To exit and return to the 3910-A2-GN32-30...

  • Page 83: Remote Digital Loopback

    DTE is sent to and returned from the remote modem. For this test to operate properly, the modems must be operating at the same rate and in Synchronous or Asynchronous Direct mode. 3910-A2-GN32-30 Test:Local Loop Started NOTE key.

  • Page 84: Local Digital Loopback

    Synchronous or Asynchronous Direct mode. 3-50 Test: Rem_Digital_Loop key until Rem_Digital_Loop appears. Press any function key to start this test. Test:Remote Loop Started key. Figure 3-6. Local Digital Loopback November 1996 key. To exit and return to the 3910-A2-GN32-30...

  • Page 85: Pattern

    For this test to operate properly, the modems must be online and in Synchronous or Asynchronous Direct mode (Figures 3-7 through 3-9). Figure 3-7. Pattern Test and Local Analog Loopback Test 3910-A2-GN32-30 Test: Loc_Digital_Loop key until Loc_Digital_Loop appears. Press any function key to start this test.

  • Page 86: Pattern Test And Digital Loopback Test

    Figure 3-8. Pattern Test and Digital Loopback Test To access Pattern from the Test branch, make the following selections: Press the 3-52 Figure 3-9. End-to-End Pattern Test Test: < Pattern key until Pattern appears. Select Pattern to start this test. Test:Pattern > BlksErrd=xxxxxxx November 1996 3910-A2-GN32-30...

  • Page 87: Sub-Network Health And Status Branch

    To access the SubHS branch from the Top-Level menu, make the following selections: Press the If there are no modems in the multipoint poll list, the message Poll List Empty! appears on the second line of the LCD. 3910-A2-GN32-30 key to display BlksRcvd=xxxxxxx, number of blocks of data received. key. “Status”...

  • Page 88: Call Setup Branch

    UNKNWN appears when the modem does not recognize the downstream health and status information or device communication is not established. Normal appears if no alarms are present. NO RSP appears when the downstream modem does not respond to the poll. November 1996 key. 3910-A2-GN32-30...

  • Page 89: Dial

    Answer function of the remote modem in conjunction with the Dial function to manually switch to the backup leased line. To access Dial from the Call Setup branch, make the following selection: Select Dial to display the first directory telephone number. 3910-A2-GN32-30 “Status” Control Test...

  • Page 90: Disconnect

    For leased backup applications, use this function to switch between the primary leased line and the backup leased line. To access Disconnect from the Call Setup branch, make the following selection: Select Disconnect. 3-56 DialDirectory: 01:5551234 DialDirectory: 02:5461879 DialDirectory:01 Off Hook Call Setup: > Dial Disconnect Disconnect Command Complete November 1996 3910-A2-GN32-30...

  • Page 91: Answer

    (Figure 3-10). Switching between backup and primary leased-line operation can be performed manually or automatically. (Refer to the Leased Line section in Chapter 4 to enable the Automatic Dial Backup configuration option.) 3910-A2-GN32-30 key. Call Setup: Answer key until Answer appears.

  • Page 92: Dial Backup

    DIAL BACKUP LINE RETURN DIAL TO DIAL STANDBY LEASED-LINE FAILURE Figure 3-10. Dial Backup Call Setup: Dial Standby Call Setup: Return_to_Dial Call Setup: Dial Standby key until Dial Standby or Return_to_Dial appears. Select the appropriate function. November 1996 MODEM 496-13081-01 3910-A2-GN32-30...

  • Page 93: Change Directory

    To access Change Directory from the Call Setup branch, make the following selections: Press the Change_Directory. The phone number listed in directory location 1 appears. Select Nxt to display other directory locations. 3910-A2-GN32-30 Dial Standby Command Complete NOTE Call Setup: <...

  • Page 94: Entering Telephone Numbers And Dial Command Modifiers Into Directory Locations

    Table 3-9 describes what can be entered in directory locations. 3-60 ) until the desired character is selected. This can be an alpha or numeric key to move the cursor to the next character position. 01:9W5556789 November 1996 3910-A2-GN32-30...

  • Page 95: Valid Dial Command Modifiers

    Directory Status (Does Not Appear in North America) Directory Status displays the status of each directory location. To access Directory Status from the Call Setup branch, make the following selections: Press the Directory_Status. 3910-A2-GN32-30 Table 3-9 Valid Dial Command Modifiers Call Setup: <...

  • Page 96: Talk/Data Branch

    The number in this directory location may be dialed later. The number in this directory location may not be dialed. key to display the value of the delay in minutes. “Status” Control Test SubHS Call_Setup November 1996 Security Remote Tlk/Data 3910-A2-GN32-30...

  • Page 97: Manual Dialing When The Remote Modem Is Configured For Auto-Answer

    (refer to the Line Dialer section in Chapter 4) must be set to Disable. This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. If you are originating a call using a telephone and the remote modem is configured for Auto-Answer, perform the following procedure.

  • Page 98: Security Branch

    On both modems, the Line Current Disconnect configuration option (refer to the Line Dialer section in Chapter 4) must be set to Disable This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. If you are originating a call using a telephone and the remote modem is configured for Manual Answer, perform the following procedure.

  • Page 99: Remote Branch

    Unlike primary channel communications, the secondary channel operates at a slower data rate and does not interrupt data flow. (V.32 terbo, V.32bis, V.32, and TMp are the only modulations available for the secondary channel.) 3910-A2-GN32-30 “Status” Control Test SubHS...
  • Page 100 ( _ ) under the digit that will be incremented. Press the F2 ( ) key to increment the digit. Press Enter (Ent) to select the modem that will be accessed by the Remote function. 3-66 NOTE Leased:19.2 < Security Remote key until Remote appears. Select Remote. NOTE Choose Address: November 1996 keys to position the cursor 3910-A2-GN32-30...
  • Page 101 LCD is actually the Top-Level menu of the remote 391x Series modem. If the message Remote FP Busy appears, the remote modem’s front panel is already in Remote mode. 3910-A2-GN32-30 Choose Password: yyyyyyyy Select Channel >...
  • Page 102 (Refer to the Remote Access Password configuration option in Chapter 4.) The Remote mode command displays Other Test Active if an Analog Loopback test is currently running. 3-68 “Status” PList Control Test SubHS November 1996 Call_Setup ExitRem 3910-A2-GN32-30...

  • Page 103: Diagnostic Control Panel Access

    Press the Press the Press the Select Grant to allow access or select Deny to lock DCP access. Either selection results in a return to the Top-Level menu. 3910-A2-GN32-30 NOTE key three times. key twice. key once. Frnt Panl Acces...

  • Page 104: Dcp Configuration

    Factory default settings are listed in Appendix F. 3910-A2-GN32-30 DCP Configuration ........... .

  • Page 105: Dcp Configuration Process

    EDIT CONFIGURATION OPTIONS ANY CHANGES MADE TO CONFIGURATION OPTIONS ARE SAVED TO Active (Saved), Customer1, OR Customer2 Figure 4-1. DCP Configuration Process November 1996 Factory Sync Leased (Answer/Originate) Async Leased (Answer/Originate) TMp (Control/Trib) Async Dial Sync Dial UNIX Dial 3910-A2-GN32-30...

  • Page 106: At Command Configuration Process

    Active (Saved) (ATZ0, ATZ3) NOTE ON POWER-UP, Active (Saved) IS LOADED TO Active (Operating) Active (Saved) (AT&W0) Figure 4-2. AT Command Configuration Process 3910-A2-GN32-30 Customer1 Customer2 (ATZ1) (ATZ2) LOAD Active (Operating) USING ATZ OR AT&F COMMAND Active (Operating) CHANGES MADE USING ANY AT...

  • Page 107: Configure Branch

    Line_Dialer DTE_Dialer “Status” Control Test SubHS Call_Setup Customer1 Customer2 Factory Sync_Leased Async_Leased Choose Mode Answer Originate Save Customer1 Customer2 (Async only) Leased_Line Test Dial_Line V42/MNP/Buffer November 1996 Tlk/Data Security Remote Sync_Dial UNIX_Dial Async_Dial Choose Mode Control Trib Security MIsc 3910-A2-GN32-30...

  • Page 108: Editing And Saving A Configuration Option

    (Remote Access Password), and how to save changes to a configuration area (Active (Saved)). The shaded key indicates what key to press. Select Configure from the Top-Level menu. Scroll across the LCD and select the Factory configuration area. 3910-A2-GN32-30 Leased:19.2 Status Configure LdEditAreafrm >...
  • Page 109 Select Sync_Leased. Select Answer. Select Edit. Scroll across the LCD and select the Misc configuration options group. Ld Fact Preset: > Sync_Leased Choose Mode: Answer Originate Choose Function: Edit Save Edit StrapGroup: > DTE_Interface Edit StrapGroup Test Misc November 1996 3910-A2-GN32-30...
  • Page 110 Select Nxt until RemAccssPasswrd appears. Select the F2 ( ) key to increment password values. Press the Continue this sequence until you have entered the new password value. 3910-A2-GN32-30 StrapsWhenDisc > No_Change RemAccssPasswrd: 00000000 RemAccssPasswrd: 10000000 RemAccssPasswrd: 10000000 key to move the cursor to the next position.

  • Page 111: Summary

    Configure branch each time it is pressed. key causes you to exit the Configure branch and return to the Top-Level menu. If keys move selections across the LCD. November 1996 key to remain in the Configure 3910-A2-GN32-30...

  • Page 112: Configuration Tables

    ( : ) on the first line and with all available selections listed on the second line. Following this is a description of the configuration option. Factory default settings are listed in Appendix F. 3910-A2-GN32-30 NOTE November 1996...

  • Page 113: Dte Interface Configuration Options

    Async must use 7 data bits with even parity and 1 stop bit. The total character size for Error Control mode, Direct mode, or Buffer mode must be 11 bits or less. The AT prefix determines the async character length. 4-10 Table 4-1 (1 of 10) DTE Interface Configuration Options November 1996 3910-A2-GN32-30...
  • Page 114 Async must use 7 data bits with even parity and 1 stop bit. The total character size for Error Control mode, Direct mode, or Buffer mode must be 11 bits or less. The AT prefix determines the number of stop bits via autobauding. 3910-A2-GN32-30 Table 4-1 (2 of 10)
  • Page 115 The AT command for Ignore is &D0. The AT commands for Standard RS232 are &D1 or &D2. The AT command for CntrlsOnHook is &D4 The AT command for CntrlsTxMute is &D5. 4-12 Table 4-1 (3 of 10) DTE Interface Configuration Options November 1996 3910-A2-GN32-30...
  • Page 116 The AT command for Wink When Disconnect is &S2. The AT command for Follows DTR is &S3. The AT command for On Early is &S4. The AT command for Delay to Data is &S5. 3910-A2-GN32-30 Table 4-1 (4 of 10) DTE Interface Configuration Options...
  • Page 117 The AT command is S-Register S72= n , where n is 0 for Disable, 1 for 10 sec, 2 for 30 sec, 3 for 1 min, 4 for 2 min, 5 for 3 min, and 6 for 5 min. 4-14 Table 4-1 (5 of 10) DTE Interface Configuration Options November 1996 3910-A2-GN32-30...
  • Page 118 Stndrd RS232. If RTS Action is set to Ignore, RTS is always ON and this configuration option has no effect. The AT command is S-Register S26= n , where n is a value from 0 to 255 in 10 millisecond increments. 3910-A2-GN32-30 Table 4-1 (6 of 10)
  • Page 119 The AT command for Wink When Disconnect is &C2. The AT command for Follows DTR is &C3. The AT command for Simulated Control Carrier is &C4. The AT command for =DTR/Disconnect OFF is &C5. 4-16 Table 4-1 (7 of 10) DTE Interface Configuration Options November 1996 3910-A2-GN32-30...
  • Page 120 Disable TXC continues to be provided when TX Clock Source is configured for External. The AT command is S-Register S71= n , where n is 0 for Enable and 1 for Disable. 3910-A2-GN32-30 Table 4-1 (8 of 10) DTE Interface Configuration Options...
  • Page 121 Data mode, the speed of the data passed between the modem and DTE occurs at the VF data rate. The AT command is S-Register S90= n , where n is 0 for Disable and 1 for Enable. 4-18 Table 4-1 (9 of 10) DTE Interface Configuration Options November 1996 3910-A2-GN32-30...

  • Page 122: Dte Dialer

    ( : ) on the first line and with all available selections listed on the second line. Following this is a description of the configuration option. Factory default settings are listed in Appendix F. 3910-A2-GN32-30 Table 4-1 (10 of 10)

  • Page 123: Dte Dialer Configuration Options

    AT&T equipment. Currently, the only application supported is AT&T DATAKIT. The AT commands for AT are &M0, &M1, &M3 or &Q0, &Q1, &Q3. The AT commands for DTR=Direct1 dialing are &M2 or &Q2. 4-20 Table 4-2 (1 of 5) DTE Dialer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 124 Command Character Echo. Controls whether or not characters are echoed back to the DTE when the modem is in Command mode. The AT command for Disable is E0. The AT command for Enable is E1. 3910-A2-GN32-30 Table 4-2 (2 of 5) DTE Dialer Configuration Options...

  • Page 125: Result Codes

    The AT command for Enable is Q0. The AT command for Disable is Q1. The AT command for Enable in Originate mode is Q2. 4-22 Table 4-2 (3 of 5) DTE Dialer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 126 AT Commands and S-Registers .) The AT command for Numbers (1) is V0. The AT command for Words format is V1. The AT command for Numbers (2) is V2. 3910-A2-GN32-30 Table 4-2 (4 of 5) DTE Dialer Configuration Options November 1996...
  • Page 127 The AT command is S-Register S64= n , where n is 0 for carriage return and line feed, 1 for carriage return, or 2 for line feed. 4-24 Table 4-2 (5 of 5) DTE Dialer Configuration Options November 1996 3910-A2-GN32-30...

  • Page 128: Line Dialer Configuration Options

    NOTE: It may not be possible to disable Dial Tone Detect in some countries. The AT commands for Disable are X0, X1, and X3. The AT commands for Enable are X2, X4, X5, X6, and X7. 3910-A2-GN32-30 Table 4-3 (1 of 5)
  • Page 129 NOTE: The range of allowable values may be restricted in some countries. The AT command is S-Register S7= n , where n is from 1 to 255 in 1-second increments. 4-26 Table 4-3 (2 of 5) Line Dialer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 130 Line Crnt Disc: Enab(>8msec) Nxt Enab(>8msec) Enab(>90msec) Disable This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. Line Current Disconnect. Determines the modem’s response to short interruptions of line current. The loss of line current is one method of disconnecting a call.
  • Page 131 Auto Make Busy: Disable Nxt Disable Enable This option is only valid with the Model 3911 and does not appear on the Model 3910’s LCD. Automatic Make Busy. Forces the modem to go off-hook under the following conditions: if a local analog loopback is performed, a self-test is performed, or if the modem is switched to the service line.
  • Page 132 COMSPHERE 3000 Series Carrier. Refer to the COMSPHERE 3000 Series Carrier, Installation Manual . The AT command is S-Register S69= n , where n is 0 for Disable and 1 for Enable. 3910-A2-GN32-30 Table 4-3 (5 of 5)

  • Page 133: Dial Line Configuration Options

    11 = 0-300 (103J) 4-30 Table 4-4 (1 of 3) Dial Line Configuration Options 12 = 1200/75 (V.23) 13 = 75/1200 (V.23) 18 = 600/75 (V.23) 19 = 75/600 (V.23) November 1996 20 = 19200 (V.32 terbo) 21 = 16800 (V.32 terbo) 3910-A2-GN32-30...
  • Page 134 Nxt Disable 2400 1200 This configuration option is ignored unless Dial Line Rate is 4800(V32b). V.32bis Override. Activates the Paradyne Point-to-Point Diagnostic 2400 bps or 1200 bps modulation. Allows the modem to use a non-standard, point-to-point modulation capable of secondary channel diagnostics while running at 2400 bps or 1200 bps.
  • Page 135 Allows the modem to train-up faster when using V.32 terbo/V.32bis/V.32 modulation. The AT command is S-Register S43= n , where n is 0 for Long and 1 for Short. 4-32 Table 4-4 (3 of 3) Dial Line Configuration Options November 1996 3910-A2-GN32-30...

  • Page 136: Leased Line Configuration Options

    The AT command for 2-wire Originate is &L1. The AT command for 4-wire Originate is &L2. The AT command for 2-wire Answer is &L3. The AT command for 4-wire Answer is &L4. 3910-A2-GN32-30 Table 4-5 (1 of 6) Leased Line Configuration Options...
  • Page 137 Table 4-5 (2 of 6) Leased Line Configuration Options 19 = 16,800 (V.32 terbo) 20 = 19,200 (TMp) 21 = 14,400 (TMp) 22 = 9600 (TMp) 23 = 7200 (TMp) 24 = 4800 (TMp) 25 = 2400 (TMp) November 1996 3910-A2-GN32-30...
  • Page 138 Nxt Disable 2400 1200 This configuration option is ignored unless Leased-Line Rate is 4800(V32b). V.32bis Override. Activates the Paradyne Point-to-Point Diagnostic 1200 bps or 2400 bps modulation. Allows the modem to use a non-standard, point-to-point modulation capable of secondary channel diagnostics while running at 1200 bps or 2400 bps.
  • Page 139 The AT command is S-Register S48= n , where n is 0 for –43 dBm and 1 for –26 dBm. V27bis Train: Short Nxt Short Long This configuration option is only available if Leased-Line Rate is configured for V27bis. 4-36 Table 4-5 (4 of 6) Leased Line Configuration Options November 1996 3910-A2-GN32-30...
  • Page 140 4-wire leased lines for connectivity by detecting line energy across the normal line bandwidth. This test of the primary lines will not interrupt the data flow on the backup lines. The configuration option settings must be the same at both ends. 3910-A2-GN32-30 November 1996 4-37...

  • Page 141: V.42/Mnp/Buffer

    Async Dial factory default setting shown following the colon ( : ) on the first line and with all available selections listed on the second line. Following this is a description of the configuration option. Factory default settings are listed in Appendix F. 4-38 Table 4-5 (6 of 6) Leased Line Configuration Options November 1996 3910-A2-GN32-30...

  • Page 142: V.42/Mnp/Buffer Configuration Options

    Modem attempts to connect in LAPM mode. If this fails, the modem connects in Buffer mode. NOTE: The modem must be reconfigured for Direct mode before changing the leased-line modulation if V.42 error control or Buffer mode are enabled with V.32bis or TMp on leased lines. 3910-A2-GN32-30 Table 4-6 (1 of 8) V.42/MNP/Buffer Configuration Options...
  • Page 143 V.42bis data compression. Online changes do not take effect until a disconnect occurs. The AT command for Disable is %C0. The AT command for Enable is %C1. 4-40 Table 4-6 (2 of 8) V.42/MNP/Buffer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 144 Buffer mode and transmits an EC fallback character to the DTE. When comparing incoming characters for a match against the EC fallback character, the modem ignores parity. The AT command is %A n , where n is a value from 0 to 127. 3910-A2-GN32-30 Table 4-6 (3 of 8) V.42/MNP/Buffer Configuration Options...
  • Page 145 The AT commands for Disable are \Q0, \Q2, and \Q4. The AT commands for XON/XOFF are \Q1 and\Q5. The AT commands for RTS to Modem are \Q3 and \Q6. 4-42 Table 4-6 (4 of 8) V.42/MNP/Buffer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 146 VF line rate or if the DTE must frequently stop the flow of data to process it. The AT Command for Disable is \G0. The AT Command for Enable is \G1. 3910-A2-GN32-30 Table 4-6 (5 of 8) V.42/MNP/Buffer Configuration Options...
  • Page 147 Dialer configuration options group) is enabled. The AT commands for Break First are \K0, \K1, \K2, and \K3. The AT commands for Data First are \K4 and \K5. 4-44 Table 4-6 (6 of 8) V.42/MNP/Buffer Configuration Options November 1996 3910-A2-GN32-30...
  • Page 148 It is still compatible, however, with modems which do not have the cellular enhancement implemented or enabled. The AT command is S-Register S91= n , where n is 0 for Disable and 1 for Enable. 3910-A2-GN32-30 Table 4-6 (7 of 8) V.42/MNP/Buffer Configuration Options...

  • Page 149: Test Configuration Options

    The DTE will not initiate local loopback in response to the signal on Pin 18. The AT command is S-Register S52= n , where n is 0 for Disable and 1 for Enable. 4-46 Table 4-6 (8 of 8) V.42/MNP/Buffer Configuration Options Table 4-7 (1 of 2) Test Configuration Options November 1996 3910-A2-GN32-30...
  • Page 150 Intermediate The modem is either of the two modems connected back-to-back. The AT command for Peripheral is S-Register S54=0. The AT command for Intermediate is S-Register S54=1. 3910-A2-GN32-30 Table 4-7 (2 of 2) Test Configuration Options November 1996...

  • Page 151: Miscellaneous Configuration Options

    Speaker Control and Speaker Volume configuration option settings. The AT command for Off is M0 The AT command for On Until CD is M1. The AT command for On is M2. 4-48 Table 4-8 (1 of 4) Miscellaneous Configuration Options November 1996 3910-A2-GN32-30...
  • Page 152 Modem answers a call, disconnects, and dials the number stored in directory location 1. NOTE: This function is disabled if dial access security is enabled. The AT Command to Disable is S-Register S67=0. The AT Command to Enable is S-Register S67=1. 3910-A2-GN32-30 Table 4-8 (2 of 4) Miscellaneous Configuration Options...
  • Page 153 NOTE: Changes to this configuration option will cause the modem to reset. NOTE: This configuration option is only applicable for leased-line network management applications. For the Model 3910, Tributary is the factory default. For the Model 3911, Control is the factory default.

  • Page 154: Security

    The Security configuration options allow you to set the parameters that control how a dial access security password is entered. For security configuration options, refer to Chapter 6, Dial Access Security. 3910-A2-GN32-30 Table 4-8 (4 of 4) Miscellaneous Configuration Options...

  • Page 155: At Command Set And S-Registers

    ( + + + ) to exit Data mode and the O command to return to Data mode. 3910-A2-GN32-30 ........... .

  • Page 156: Command Guidelines

    Valid commands are acknowledged with numeric or word result codes (unless the result codes have been disabled using the Q1 command). Table 5-1 lists all available result codes with numeric and word equivalents. + + + Enter November 1996 3910-A2-GN32-30...

  • Page 157: Result Codes

    *** Only appears when the Extended Result Codes configuration option is set for Add/EC. If this configuration option is set for Add/V42, MNP, then either V42b, V42, MNP5, MNP4, MNP3, MNP2, or NoEC appears. 3910-A2-GN32-30 Table 5-1 (1 of 2)

  • Page 158: At Command List

    Connection at 1200 bps with error control Connection at 38,400 bps Connection at 19,200 bps with error control Connection at 57,600 bps Forbidden number Delayed number ATXn X is the AT command and n is the specific value for that command. Enter November 1996 Description 3910-A2-GN32-30...

  • Page 159: 391X Series At Commands

    For correct operation, at least one ringback must be detected; therefore, the remote modem should be configured to answer on the second ring or subsequent rings. 3910-A2-GN32-30 Table 5-2 (1 of 3) 391x Series AT Commands...
  • Page 160 (2 of 3) 391x Series AT Commands Description November 1996 DCP LCD Command Sequence Call Setup\Dial\ Dial Directory: Configure\Edit\ DTE Dialer H0: Call Setup\ Disconnect or Control\Remove Make Busy H1: Control\ Make Busy Status\Identity Control\Speaker Configure\Edit\ Misc Control\Speaker Configure\Edit\ Misc 3910-A2-GN32-30...
  • Page 161 Tone Dial. Sets the modem for tone dial mode. Result Codes Format. Displays result codes in Number (1) format (digits). Displays result codes as text. Displays result codes in Number (2) format (digits). 3910-A2-GN32-30 Table 5-2 (3 of 3) 391x Series AT Commands Description...
  • Page 162 Modem ignores busy tone. November 1996 DCP LCD Command Sequence Extended Result Code: Configure\Edit\ Busy Tone DTE Dialer Detect: Dial Tone Disable Detect: Disable Configure\Edit\ Disable Line Dialer Enable Enable Busy Tone Enable Detect: Enable Enable Configure\Edit\ Line Dialer Configure/Edit/ Line Dialer 3910-A2-GN32-30...
  • Page 163 DTR drops on the DTE interface. This can be used on the answer side modem to force the originate modem to initiate a dial backup. NOTE: Only the Standard RS232 setting is allowed in Austria. 3910-A2-GN32-30 Table 5-3 (3 of 8) 391x Series AT Commands...
  • Page 164 Leased-Line mode. Therefore, it must be entered as the last command in an initialization string. 5-10 Table 5-3 (4 of 8) 391x Series AT Commands Description November 1996 DCP LCD Command Sequence Configure/ Factory Configure\Edit\ Dial Line Configure\Edit\ Dial Line Configure\Edit\ Leased Line 3910-A2-GN32-30...
  • Page 165 &T6 Remote Digital Loopback test. &T7 Remote Digital Loopback with Pattern. &T8 Local Loopback with Pattern. &T9 Self-Test. 3910-A2-GN32-30 Table 5-3 (5 of 8) 391x Series AT Commands Description November 1996 AT Command Set and S-Registers DCP LCD Command...
  • Page 166 Disable. Enable. Disables and switches modem to Buffer mode. 5-12 Table 5-3 (6 of 8) 391x Series AT Commands Description November 1996 DCP LCD Command Sequence None Configure\Save Configure\Edit\ DTE Interface Call Setup\ Change Directory Configure\Edit\ V42/MNP/Buffer Configure\Edit\ V42/MNP/Buffer 3910-A2-GN32-30...
  • Page 167 MNP or Disconnect. MNP or Buffer. V.42/MNP or Disconnect. V.42/MNP or Buffer. LAPM_or_Disc LAPM_or_Bufr \Q n Flow Control of DTE, Flow Control of Modem. 3910-A2-GN32-30 Table 5-3 (7 of 8) 391x Series AT Commands Description Break Buffer Send Break Break Forces...

  • Page 168: S-Register List

    The DTE can check the actual value of the register with Sn? command. 5-14 Table 5-3 (8 of 8) 391x Series AT Commands Description NOTE November 1996 DCP LCD Command Sequence Configure\Edit\ Line Dialer Configure\Edit\ V42/MNP/Buffer Configure\Edit\ V42/MNP/Buffer Configure\Edit\ V42/MNP/Buffer Configure\Edit\ V42/MNP/Buffer 3910-A2-GN32-30...

  • Page 169: 391X Series S-Registers

    Enter a value from 0–127 for the line feed character. The factory setting is 10 (ASCII carriage return or line feed). The range of allowable values may be restricted in some countries. 3910-A2-GN32-30 ATSn? n is the register number. Enter ATSn=r n is the register number, and r is the new value.
  • Page 170 . Register determines how long (in seconds) an Register determines how long (in tenths of November 1996 DCP LCD Command Sequence Configure\Edit\ DTE Dialer Configure\Edit\ Line Dialer Configure\Edit\ Line Dialer Configure\Edit\ Line Dialer Configure\Edit\ Line Dialer Configure\Edit\ DTE Dialer Configure\Edit\ Tests Configure\Edit\ DTE Interface 3910-A2-GN32-30...
  • Page 171 V.32bis Train. Register controls the modem’s train time for V.32bis/V.32 mode. Register has the following values: 0 = Long 1 = Short The factory setting is Long. 3910-A2-GN32-30 Table 5-4 (3 of 13) 391x Series S-Registers Description November 1996 AT Command Set and S-Registers...
  • Page 172 The range of allowable values is 0 through 15 in North America, and 1 through 15 in other countries. The default is country dependent. 5-18 Table 5-4 (4 of 13) 391x Series S-Registers Description . Register determines the modem’s transmit power November 1996 DCP LCD Command Sequence Configure\Edit\ Leased Line Configure\Edit\ Leased Line Configure\Edit\ Leased Line 3910-A2-GN32-30...
  • Page 173 DTE LL (CT141). Register determines if the modem performs a local analog loopback if it receives a CT141 signal from the DTE. Register has the following values: 0 = Disable 1 = Enable The factory setting is Disable. 3910-A2-GN32-30 Table 5-4 (5 of 13) 391x Series S-Registers Description November 1996...
  • Page 174 (rightmost) of digits of a remote access password. Any value from 00 to 99 is valid. 5-20 Table 5-4 (6 of 13) 391x Series S-Registers Description November 1996 DCP LCD Command Sequence Configure\Edit\ Tests Configure\Edit\ Tests Configure\Edit\ Misc Configure\Edit\ Misc Configure\Edit\ Misc Configure\Edit\ Misc Configure\Edit\ Misc 3910-A2-GN32-30...
  • Page 175 Register has the following values: 0 = Enable (8msec) 1 = Enable (90msec) 2 = Disable The factory setting is Enable (8msec). 3910-A2-GN32-30 Table 5-4 (7 of 13) 391x Series S-Registers Description November 1996 AT Command Set and S-Registers...
  • Page 176 0 = Enable 1 = Disable The factory setting is Enable. 5-22 Table 5-4 (8 of 13) 391x Series S-Registers Description November 1996 DCP LCD Command Sequence Configure\Edit\ Misc Configure\Edit\ Misc Configure\Edit\ Line Dialer Configure\Edit\ Leased Line Configure\Edit\ DTE Interface 3910-A2-GN32-30...
  • Page 177 Register has the following values: 0 = Enable 1 = Disable The factory setting is Enable. 3910-A2-GN32-30 Table 5-4 (9 of 13) 391x Series S-Registers Description November 1996...
  • Page 178 0 or 231 = No Change 1 or 232 = Reload The factory setting is No Change. 5-24 Table 5-4 (10 of 13) 391x Series S-Registers Description November 1996 DCP LCD Command Sequence Configure\Edit\ Leased Line Configure\Edit\ DTE Dialer Configure\Edit\ Line Dialer Configure\Edit\ Misc 3910-A2-GN32-30...
  • Page 179 It is still compatible, however, with modems which do not have the cellular enhancement implemented or enabled. Register has the following values: 0 = Disable 1 = Enable The factory setting is Disable. 3910-A2-GN32-30 Table 5-4 (11 of 13) 391x Series S-Registers Description November 1996...
  • Page 180 Register has the following values: 0 = Enable 1 = Disable The factory setting is Enable. 5-26 Table 5-4 (12 of 13) 391x Series S-Registers Description November 1996 DCP LCD Command Sequence Configure\Edit\ Leased Configure\Edit\ Leased Configure\Edit\ Leased Configure\Edit\ Leased Configure\Edit\ Leased 3910-A2-GN32-30...
  • Page 181 Special Standby. Supports automatic dial standby when a third modem is used for dial backup. Register has the following values: 0 = Disable 1 = Enable The factory setting is Disable. 3910-A2-GN32-30 Table 5-4 (13 of 13) 391x Series S-Registers Description November 1996...

  • Page 182: Dial Access Security

    Chapter 6, Dial Access Security, is not available for viewing online because it contains security-sensitive information. Dial Access Security information is available in the COMSPHERE 3900 Series Modems Models 3910 and 3911 Point-To-Point/Multipoint Installation and Operation Manual, Document No. 3910-A2-GN32-30.

  • Page 183: Overview

    ........... . Overview Pages A-2 and A-3 provide a menu tree for the 391x Series modems. 3910-A2-GN32-30 November 1996...
  • Page 184 Leased_Line Leased Mode LeasedLine Rate V32bis Autorate V32bis Override Leased TX Level Auto Dial Back AutoDialStandby SpecialStandby DialStandby Time CarrierOn Level V27bis Train V29 TrainOnData V29 Retrain V29 Link Config TMp Train Time TMp TxPreemphasis Lease_Lookback Dual_Leased_Ln BackupLineCheck 3910-A2-GN32-30...
  • Page 185 Control SubHS Test Dial Disconnect Self Rem_Digital_Loop Abort Loc_Analog_Loop (3910 only) Make_Busy Reset Speaker RemoveMakeBusy Data_Stream EIA_LEDS from previous page V42/MNP/Buffer Test Err Contrl Mode DTE RL (CT140) V42bis Compress DTE LL (CT141) MNP5 Compress Test Timeout...

  • Page 186: Modem Health

    A problem is suspected after the power-up self-test. 3910-A2-GN32-30 Troubleshooting ........... .

  • Page 187: Leased-Line Operation

    Enable. Refer to Leased Line in Chapter 4. Call the answering modem with a handset and verify that the modem’s answer tone is transmitted. Verify that the Auto Dial Standby configuration option is enabled. Refer to Leased Line in Chapter 4. November 1996 3910-A2-GN32-30...

  • Page 188: Modem - Dte Connection

    Symptom The modem does not accept or echo back AT commands. 3910-A2-GN32-30 Table B-4 Modem — DTE Connection Action Verify that the cable between the Async port of the DTE and the modem is a standard RS-232 cable. (Null modem cables, also known as crossover cables, do not work in this application.)

  • Page 189: Modem - Vf Connection

    If using V.25bis HDLC, verify that the character format uses flag, address, and control characters before the text block and a frame sequence check and flag after the text block. November 1996 3910-A2-GN32-30...

  • Page 190: Online Operation

    Symptom The data is scrambled. Data is missing during a transfer. 3910-A2-GN32-30 Table B-5 (2 of 2) Modem — VF Connection Action If the modem is operating behind a PBX, determine if a 9 and comma are needed before the telephone number.
  • Page 191 This appendix lists EIA-232-D and VF TELCO pin assignments and provides information about auxiliary cables which are not supplied. 3910-A2-GN32-30 Pin Assignments ........... .

  • Page 192: Eia-232-D Pin Assignments

    Reserved for future function — — Reserved for future function Transmit Clock — — Reserved for future function Receive Clock Local Loopback Data Terminal Ready Remote Loopback Ring Indicator Data Rate Selector External Clock Test Mode November 1996 Circuit Function 3910-A2-GN32-30...

  • Page 193: C-1 Vf Pin Orientation

    VF Connector Pin Assignments Table C-2 lists the connector pin assignments for Model 3910 modular jacks as well as the pin assignments for the TELCO jacks. (See Figure C-1.) Leased 4-Wire: TX 2-Wire: TX/RX 4-Wire: TX 2-Wire: TX/RX 4-Wire: RX...

  • Page 194: C-2 Wiring Diagram — "Y" Cable For External Telephone

    To add an external telephone to your modem, use an external “Y” cable to connect the phone line to both the modem and the telephone (Figure C-2). Figure C-2. Wiring Diagram — “Y” Cable for External Telephone November 1996 3910-A2-GN32-30...

  • Page 195: C-3 Wiring Diagram — 8-Position To 6-Position Crossover Cable

    4-wire operations with TEK leads TEK leads are for loopback purposes. A 50-pin version is being considered for multiple line connections.” 8-POSITION PLUG PIN NO. Figure C-3. Wiring Diagram — 8-Position to 6-Position Crossover Cable 3910-A2-GN32-30 6-POSITION PLUG PIN NO. November 1996 Pin Assignments...

  • Page 196: C-4 Wiring Diagram — 25-Pin Crossover Cable

    COMSPHERE 3900 Series Modems To connect a Model 3910 port to another modem’s EIA-232-D interface, use a 25-pin crossover cable (Figure C-4). 25-POSITION PLUG PIN NO. XTXC Figure C-4. Wiring Diagram — 25-Pin Crossover Cable 25-POSITION PLUG PIN NO. XTXC...
  • Page 197 Refer to DTE Dialer Type configuration option in Chapter 4, DCP Configuration . 3910-A2-GN32-30 and Responses ........... .

  • Page 198: Call Request Commands

    ET is Engaged tone. NS is Number not stored. CB is Local DCE busy. RT is Time-out on ring tone. AB is Abort call on time-out. NT is Answer tone not detected. FC is Forbidden call. November 1996 3910-A2-GN32-30...

  • Page 199: Ccitt V.25Bis Dialing Commands And Response

    If DIC is issued within 5 seconds, the modem sends the VAL response to the DTE. If DIC is issued after 5 seconds, INV is returned. 3910-A2-GN32-30 n is the delay (in minutes) before the number can be called. November 1996...

  • Page 200: Program Normal (Prn)

    All the numbers forbidden are displayed, irrespective of whether they belong to a directory location. The RLF command format is RLF. x is the directory location 1–24; n is the telephone number. November 1996 3910-A2-GN32-30...

  • Page 201: Request List Of Stored Numbers (Rln)

    If no directory location is specified, then all telephone numbers stored in memory appear. The LSN response format is: LSNx;n 3910-A2-GN32-30 x is a directory location. x is a sequence number (not a directory location). n is the telephone number.

  • Page 202: Command Response

    DTE. INV is similar to the AT result code ERROR. The INV response format is: INVxx Where: Table D-1 lists V.25bis commands supported by the 391x Series modems. xx is CU command unknown. MS message syntax error. PS parameter syntax error. PV parameter value error. November 1996 3910-A2-GN32-30...

  • Page 203: V.25Bis Commands

    Request to List Delayed Numbers Request to List Forbidden Numbers Request to List Stored Numbers List Delayed Numbers List Forbidden Numbers List Stored Numbers 3910-A2-GN32-30 CCITT V.25bis Dialing Commands and Responses Table D-1 V.25bis Commands Description Call Request Commands Call Answer Commands...
  • Page 204 V.25bis Command Call Failure Indication Call Connecting Indication Valid Command Invalid Command Table D-2 V.25bis Response Messages Description Call Response Command Response November 1996 AT Command/ Result Code Equivalent BUSY, NO ANSWER, NO CARRIER, NO DIAL TONE, ERROR CONNECT ERROR 3910-A2-GN32-30...

  • Page 205: Ascii Character Table

    Hexadecimal ASCII Value 3910-A2-GN32-30 ASCII Character Table ........... .
  • Page 206 COMSPHERE 3900 Series Modems Hexadecimal ASCII Value Table E-1 (2 of 4) ASCII Characters Decimal Control ASCII Value Character November 1996 CTRL-W CTRL-X CTRL-Y CTRL-Z CTRL-[ CTRL-/ CTRL-] CTRL-|Ax CTRL-_ spacebar “ & ’ 3910-A2-GN32-30...
  • Page 207 Hexadecimal ASCII Value 3910-A2-GN32-30 Table E-1 (3 of 4) ASCII Characters Decimal Control ASCII Value Character November 1996 ASCII Character Table < >...
  • Page 208 COMSPHERE 3900 Series Modems Hexadecimal ASCII Value Table E-1 (4 of 4) ASCII Characters Decimal Control ASCII Value Character November 1996 delete 3910-A2-GN32-30...
  • Page 209 LCD when that factory default configuration is selected. 3910-A2-GN32-30 ........... .
  • Page 210 Settings Settings Async Sync 19,200 bps None Ignore Standard RS232 Forced On Standard RS232 Ignore Standard RS232 Wink When Standard Disc RS232 0 msec 0 msec Wink When Standard Disc RS232 Internal Disable Disable Disable Disable Disable Port1 Port1 3910-A2-GN32-30...
  • Page 211 Enable Codes Result Codes Words Format AT Command Normal Mode V.25bis Coding V.25bis Idle Fill V.25bis New Line Character 3910-A2-GN32-30 Table F-1 (2 of 7) Factory Default Configuration Options Async Leased Async Dial Default Default Settings Settings Settings Disable 043 ASCII...
  • Page 212 Long Long This configuration option is country dependent. This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. Except in North America, this configuration option is not changed by loading factory default configuration options. Table F-1 (3 of 7)
  • Page 213 Backup Line Disable Disable Check This configuration option is country dependent. Except in North America, this configuration option is not changed by loading factory default configuration options. 3910-A2-GN32-30 Table F-1 (4 of 7) Factory Default Configuration Options Async Leased Async Dial...
  • Page 214 November 1996 UNIX Dial Sync Dial Default Default Default Settings Settings V.42/MNP or N/A (Direct) Buffer Enable Enable Disable CTS_to_DTE RTS_to_Modem Disable Keep Data Data First 10 seconds Disable Disable Disable Disable Disable Disable Disable Disable Enable Enable Disable Disable 3910-A2-GN32-30...
  • Page 215 Diagnostic Modem(DC) Modem(DC) Connection Link Delay(seconds) This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. This configuration option is not changed by loading factory default configuration options. 3910-A2-GN32-30 Table F-1 (6 of 7) Factory Default Configuration Options Async Leased...
  • Page 216 No Originate No Originate Mode Security Security This configuration option does not appear on Models 3910-A1-401 and 3911-B1-001. This configuration option is not changed by loading factory default configuration options. Table F-1 (7 of 7) Factory Default Configuration Options Async Leased...
  • Page 217 This appendix provides diagrams of sample configurations for the 391x Series modems. Following each diagram, the appropriate configuration options and cables are listed. 3910-A2-GN32-30 Sample Configuration ........... .

  • Page 218: Point-To-Point

    Point-to-Point Figure G-1 shows a sample configuration for point-to-point applications. 19200(V32t) 3910 (Sync) Cable 1 Figure G-1. Sample Configuration — Point-to-Point Configuration Options 3910 A 3910 B Cables Cable 1 Cable 2 Leased Cable 2 Cable 2 Use Sync Leased (Answer) default configuration options.

  • Page 219: Configuration Options

    Tributary rates will never exceed control rates. If tributary and control rates are equal, reducing the control rate will automatically reduce the tributary rate. 19200(TMp) 3910 (Sync) Cable 1 Figure G-2. Sample Configuration — Multipoint Configuration Options 3910 A 3910 B 3910 C Cables Cable 1 Cable 2 3910-A2-GN32-30 Leased...

  • Page 220: Point-To-Point With Automatic Dial Backup

    Figure G-3 shows a sample configuration for point-to-point applications with automatic dial backup. Cable 3 19200(V32t) 3910 (Sync) Cable 1 Figure G-3. Sample Configuration — Point-to-Point with Automatic Dial Backup Configuration Options 3910 A 3910 B Cables Cable 1 Cable 2 Cable 3 Dial Leased Cable 2...

  • Page 221: Point-To-Point With Network Management

    19200(V32t) 3910 (Sync) Cable 1 (6700 6800) Adapter (002-0025-0031) Figure G-4. Sample Configuration — Point-to-Point with Network Management Configuration Options 3910 A 3910 B Cables Cable 1 Cable 2 Cable 4 3910-A2-GN32-30 Leased 3600- Cable 2 Cable 2 Hubbing...

  • Page 222: Carrier With Network Management

    (Sync) Cable 1 Circuit Card (6700 6800) Adapter (002-0025-0031) Figure G-5. Sample Configuration — Carrier with Network Management Configuration Options 3911 3910 Cables Cable 1 Cable 2 Cable 4 Leased Cable 2 Cable 2 COMSPHERE 3000 Series Carrier Cable 4 Use Sync Leased (Answer) default configuration options.

  • Page 223: Extended Multipoint

    19200(V32t) 4800 4800 3920 (Sync) 4800 4800 Cable 1 Cable 1 Cable 1 Cable 1 Figure G-6. Sample Configuration — Extended Multipoint 3910-A2-GN32-30 19200(V32t) Leased 3920 Cable 2 Cable 2 4800(TMp) Leased 3910 Cable 2 November 1996 Sample Configuration 4800...

  • Page 224: Configuration Options

    COMSPHERE 3900 Series Modems Configuration Options 3920 A 3920 B 3910 A 3910 B 3910 C Cables Cable 1 Cable 2 Cable 5 Use Sync Leased (Answer) default configuration options with the following exception: Rate at 19.2K Set ports 1, 2, 3, and 4 to 4800.

  • Page 225: Extended Diagnostics

    Extended Diagnostics Figure G-7 shows a sample configuration for extended diagnostics. Figure G-7. Sample Configuration Configuration Options 3910 A 3910 B 3910 C 3910-A2-GN32-30 Extended Diagnostics Use Sync Leased (Answer) default configuration options with the following exception: Network position Set to Control.

  • Page 226: Cables

    COMSPHERE 3900 Series Modems 3910 D,F,H 3910 E,G Cables Cable 1 Cable 2 Cable 5 Cable 6 Cable 7 Adapter 871A G-10 Use Sync Leased (Answer) default configuration options with the following exceptions: TX Clock Source Set to RXC_Loop. Use Sync Leased (Answer) default configuration options with the following exceptions: Diagnostic Connection Set to Modem (DC).

  • Page 227: Equipment List

    Model 3910 Model 3911 6-position, 4-wire modular cord, 7-foot length 8-position, 8-wire modular cord, 14-foot length Universal Power Supply 3600 Hubbing Device EIA-323-D/V.24 Crossover Cable 6 position, 6-wire modular cord 8 position, 8-wire modular cord 871A Adapter 3910-A2-GN32-30 Equipment List...
  • Page 228 AT command set AT prefix autobaud automatic answer 3910-A2-GN32-30 Glossary A configuration area containing configuration options currently in use by the modem. Anytime a power cycle occurs or a reset is performed or a save is issued using the DCP, this area is updated with the contents of Active (Saved).
  • Page 229 The rack mounting that contains 17 slots: 1 control slot for an SDU and 16 modem slots. See data carrier. A modem that is designed for installation in a COMSPHERE 3000 Series Carrier and used at central-site operations. November 1996 3910-A2-GN32-30...
  • Page 230 Command mode configuration area configuration option connector 3910-A2-GN32-30 An advisory committee (Consultative Committee on International Telephone and Telegraph) established by the United Nations to recommend communications standards and policies. A standard for modems operating full-duplex over dial networks at 1200 bps.
  • Page 231 See SDCP. The process of recovering data from a modulated carrier wave. Device Health and Status. A detailed account of device alarms. The diagnostic interface between two network devices, used to extend the NMS diagnostics to downstream devices. November 1996 3910-A2-GN32-30...
  • Page 232 EIA RS-366-A error control escape sequence extended circuit 3910-A2-GN32-30 A modifier used in the dial string that instructs the modem how to process a dialed telephone number. A communications circuit that is established by a switched circuit connection in the dial network.
  • Page 233 Liquid Crystal Display. A thin sandwich of two sealed glass plates containing liquid crystal material. When voltage is applied, the amount of light able to pass through the glass plates is altered so that messages may be “written” on the display. November 1996 3910-A2-GN32-30...
  • Page 234 3910-A2-GN32-30 A private telephone line connection exclusively for the user. No dialing is necessary. Light Emitting Diode. A light or status indicator on the DCP that glows in response to the presence of a certain condition (e.g., an alarm).
  • Page 235 An informative display screen available from the modem’s Top-Level display. It provides such information as network position (control or tributary), network management address, DTE mode (Asynchronous or Synchronous), Line mode (Leased Answer, Leased Originate, or Dial), and the modulation scheme used by the modem. November 1996 3910-A2-GN32-30...
  • Page 236 Select key serial transmission S-Registers SubHS synchronous transmission 3910-A2-GN32-30 A part of the modem’s memory that contains values that determine the modem’s operating characteristics. A branch of the Top-Level menu that permits access to the DCP of another modem. A test that sends a signal to the remote modem to test the local modem, the remote modem, and the circuit between them.
  • Page 237 A device connected “closer” to the host computer. A modulation that adds the 19,200 bps and 16,800 bps data rates to the V.32bis data rates. It is a Paradyne proprietary modulation, not a CCITT standard. Voice Frequency. The part of the audio frequency range used to transmit voice sound (usually 300 Hz to 3400 Hz).
  • Page 238 2-6, 4-1, 4-10 AT commands automatic rate control, 4-35 backup Bell Bisync, 4-20, D-1 busy control, 3-34 3910-A2-GN32-30 Index auto-answer, 3-63, 4-25 manual answer, 3-57, 3-64, 4-25 command list, 5-4–5-14 configuration option, 4-20 operating modes, 5-1 result codes, 5-3–5-4 using commands, 2-7–2-8, 4-2, 4-3, 5-1–5-2...
  • Page 239 3-63, 4-25 manual answer, 3-57, 3-64, 4-25 backup, 2-4, 3-35, 3-54, 3-57–3-59, B-2 command modifiers, 3-61, 5-5, 5-6 DCP controlled, 3-54–3-62 manual dial. See Talk/Data network connection, 2-4, B-4–B-5 stored telephone number, 3-59–3-62, 5-12 November 1996 3910-A2-GN32-30...
  • Page 240 (FRev), 3-20 firmware upgrades/download, 3-35–3-42 flow control, 4-42, 4-43 front panel. See diagnostic control panel function keys, 3-6, 3-8, 4-8 government requirements 3910-A2-GN32-30 connection, 2-4, B-3 status, 3-4–3-6, 3-21 cable connection, 2-4, B-3 pin assignments, C-2 status, 3-4–3-6, 3-21 customer supplied, 2-2 list, 2-1–2-2, H-1...
  • Page 241 Line Dialer configuration options group, 4-25–4-29 Load Number (LN), 1-7 loopback Index-4 definitions, 3-7 status (LEDs), 3-4–3-6 Model 3910, 2-2–2-12 Model 3911, 2-9–2-11 description, 3-2, 3-6–3-7 menu structure, 3-8 messages, 3-9–3-14, 3-23–3-24 dial, 2-4 leased, 2-4 local analog, 3-48–3-49 local digital, 3-50–3-51...
  • Page 242 C-2 PList (Poll List) branch, 3-8, 3-25–3-30 power consumption, 1-9 power supply connection, 2-5 power-up self-test, 2-5 public switched telephone network (PSTN). See dial 3910-A2-GN32-30 structure, 3-8 quick configuration display, 3-14 tree, A-1–A-3 LCD, 3-9–3-14, 3-23–3-24 result codes, 5-3–5-4...
  • Page 243 1-9 government, 1-5–1-7 enable/disable, 4-22, 5-7 extended, 4-23, 5-8 list, 5-3–5-4 numeric or word, 4-23, 5-7 access messages, 3-13 branch, 3-8, 6-4–6-13 configuration options, 6-13–6-16 database tables, 6-2, 6-3, 6-18–6-19 passwords, 6-2–6-4, 6-16–6-17 definitions, 3-7 LEDs, 3-4–3-6 November 1996 3910-A2-GN32-30...
  • Page 244 V.25bis dialing commands and response, D-1–D-8 V.42bis data compression, 4-40 V.42 error control, 4-39 V.42/MNP/Buffer configuration options group, 4-38–4-46 VF Thresholds Update, 3-42–3-45 weight, 1-9 3910-A2-GN32-30 branch, 3-8, 3-62–3-64 telephone, external, 3-62, C-4 display, 3-56 storage, 3-60 Abort, 3-46–3-47 Local Analog Loopback, 3-48–3-49 Local Digital Loopback, 3-50–3-51...

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