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Nortel Passport 4400 T1 Manual

Nortel Passport 4400 T1 Manual

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Passport 4400
T1/E1 and Digital Voice
Manual
Part Number 800-1944-20, Rev. A
June 1998

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Summary of Contents for Nortel Passport 4400 T1

  • Page 1 Passport 4400 T1/E1 and Digital Voice Manual Part Number 800-1944-20, Rev. A June 1998...
  • Page 2 Declaration of CE Conformance (for International sales) A Declaration of CE Conformance is on file at the Nortel addresses shown below. The declaration lists the models described in this manual. If the unit carries the CE mark, this declaration certifies that it meets the specific EMC standards and safety (LVD) standards required for CE marking.
  • Page 3 Safety Warnings and Cautions Various safety agencies request statements of warning or caution to help you in the safe operation of the unit. These statements also apply to any and all modules installed within the unit. To ensure adequate cooling of the Um die Kühlung des Gerätes nicht zu Pour assurer un refroidissement equipment a 2.0 inch unobstructed...
  • Page 4 Changes or modifications to this product, that could increase the amount of Radio Frequency Emissions from this product, without the expressed written approval of Nortel/Micom could cause the product and the user to violate the FCC’s Rules and Regulations, thus requiring the product to be turned off or disconnected.

  • Page 5: Table Of Contents

    Contents General Description — 1 The T1 Voice Module (TVM) ........... . . 1-1 Physical Description .
  • Page 6 Configuring the T1 or E1 Access Module ..........3-3 Profile Configuration .
  • Page 7 Displaying the System Clock........... 4-9 TimeResource.
  • Page 8 2280 Tone ............. 5-20 Clear Channel .
  • Page 9 Digital Voice Module Show and Action Commands — 6 Command Line Interface ............6-1 Using the Show Commands .
  • Page 10 Show RSI Command ............7-9 Displaying the RSI Cache Contents .
  • Page 11 Code Download — D Source Code ..............D-1 When to Download .

  • Page 13: General Description

    General Description This document describes the following modules available for the Passport 4400 unit: • the T1 Voice Module (TVM), which provides a connection to a T1 line • the E1 Voice Module (EVM), which provides a connection to an E1 line •...
  • Page 14 Passport 4400 T1/E1 and Digital Voice Module Manual General Description Feed-through Stacking Connectors Rear LED Block T1 Access Module Location Module Indicators Switch Group Front Voice Channel Receptacles for Indicators Digital Voice Modules Figure 1-1. T1 Voice Module, 3/4 View On the right front is the Light Emitting Diode (LED) block consisting of 13 indicators.

  • Page 15: The E1 Voice Module (Evm)

    General Description Passport 4400 T1/E1 and Digital Voice Module Manual DSX-1 Not used Not used (J4) (J5) (J6) (J7) (SW2) DPI (J9) DP2 (10) Interface Test Figure 1-2. T1 Voice Module, Rear View The E1 Voice Module (EVM) The E1 Voice Module provides Passport 4400 users access to a 2.048 Mbps E1 line, the DSX-1 interface.
  • Page 16 Passport 4400 T1/E1 and Digital Voice Module Manual General Description At the center and on the right side are four feed-through stacking connectors, used to connect the E1 Voice Module to the MPA Base Module below it, and to any expansion module installed above it.

  • Page 17: Digital Voice Modules (Dvms)

    General Description Passport 4400 T1/E1 and Digital Voice Module Manual Figure 1-4. is the rear view of the E1 Voice Module. The left connector set is used to connect to the DSX-1 interface line. The other connectors are not used.

  • Page 18: The Digital Voice Expansion Module (Dvem)

    Passport 4400 T1/E1 and Digital Voice Module Manual General Description Figure 1-5. Digital Voice Module The Digital Voice Expansion Module (DVEM) The Digital Voice Expansion Module (DVEM) is a full-sized printed circuit board used to extend the number of voice channels supported by a T1 or E1 Voice Module.

  • Page 19: Digital Module Interconnectivity

    General Description Passport 4400 T1/E1 and Digital Voice Module Manual Feed-through Stacking Connectors Rear LED Block Module Location Front Switch Group Receptacles (12) for Digital Voice Modules Figure 1-6. Digital Voice Expansion Module On the right front is the Light Emitting Diode (LED) block consisting of 13 indicators.
  • Page 20 Passport 4400 T1/E1 and Digital Voice Module Manual General Description DS0 Channels DSX-1 1-24 Channel Interface Switching Connector C1-C12 Digitized Voice D1-D12 DVEM Connectors (B-1 - B-6) Compressed Digital Data Voice Passport Network DVEM Digital Voice Expansion Modules Digital Voice Module...

  • Page 21: E1 Voice Module Interconnectivity

    General Description Passport 4400 T1/E1 and Digital Voice Module Manual Modules on the T1 Voice Module, the Digital Voice Modules installed on the Digital Voice Expansion Modules, and the Ethernet Base Module is implemented by stacking connectors. E1 Voice Module Interconnectivity Figure 1-8.

  • Page 22: Models

    Passport 4400 T1/E1 and Digital Voice Module Manual General Description Models The modules referred to in this section are available in the following models: Number Description 5000TVM/2 T1 Voice Module - Multiport DSU/CSU with full drop and insert capability 5000EVM/2 E1 Voice Module with two G.703/704 E1 Ports...
  • Page 23 General Description Passport 4400 T1/E1 and Digital Voice Module Manual Physically you may, if required, install them as a block in locations C, D, and E, respectively, and install another, different module in location B. This module (in location B) must have the requisite feed-through connectors for connection between the T1 or E1 Voice Module and the Ethernet Base Module.
  • Page 24 Passport 4400 T1/E1 and Digital Voice Module Manual General Description 1-12...

  • Page 25: Indicators

    Indicators This section describes the indicators associated with the T1 Voice Module, the E1 Voice Module, and the Digital Voice Expansion Module. T1 Voice Module There are 13 indicators associated with the T1 Voice Module (TAM), as shown in Figure 2-1. Although interrelated, they may be divided into two distinct functional groups.

  • Page 26: Indicator Group 1 Description

    Passport 4400 T1/E1 and Digital Voice Module Manual Indicators Indicator Group 1 Description Initialization States Power Off Reset RAM Test Boot Checksum Test Download Required Downloading Code TAM Initialization Lights may be • Off • Red • Flashing Red • Amber •...

  • Page 27: T1 Indicator Group 1 Operational States

    Indicators Passport 4400 T1/E1 and Digital Voice Module Manual T1 indicator Group 1 Operational States Indicator Function State Status Remarks System Status Initialization XA, XT, DA, DT, D1, D2 show initialization state Green Operational Test XA, XT, DA, DT, D1, D2...

  • Page 28: T1 Indicator Group 2 Description

    Passport 4400 T1/E1 and Digital Voice Module Manual Indicators T1 Indicator Group 2 Description Indicators 1 through 6 represent, respectively, the status of the digital voice channels B1 through B6, as follows: State Status Digital Voice Module not installed or defective, or power is off...

  • Page 29: E1 Indicator Group 1 Description

    Indicators Passport 4400 T1/E1 and Digital Voice Module Manual E1 Indicator Group 1 Description Initialization States Power Off Reset RAM Test Boot Checksum Test Off Download Required Downloading Code EAM Initialization Lights may be • Off • Red • Flashing Red •...
  • Page 30 Passport 4400 T1/E1 and Digital Voice Module Manual Indicators E1 Indicator Group 1 Description Indicator Function State Status Remarks System Sta- Initialization 1A, 1T, 2A, 2T, D1, D2 show initialization Green Operational mode state Flashing green Download active 1A, 1T, 2A, 2T, D1, D2...

  • Page 31: E1 Indicator Group 2 Description

    Indicators Passport 4400 T1/E1 and Digital Voice Module Manual E1 Indicator Group 2 Description Indicators 1 through 6 represent, respectively, the status of the digital voice channels B1 through B6, as follows: State Status Digital Voice Module not installed, defective, or power is off...

  • Page 32: T1 And E1 Digital Voice Expansion Module

    Passport 4400 T1/E1 and Digital Voice Module Manual Indicators T1 and E1 Digital Voice Expansion Module There are 13 indicators associated with the Digital Voice Expansion Module as shown in Figure 2-3. N.I. OK N.I. = Not installed Figure 2-3. Digital Voice Expansion Module Indicators...

  • Page 33: Command Line Interface Overview

    Configuring and Connecting the T1/E1 AccessModules This section describes the procedures used to configure and connect the T1 and E1 Access Modules. It includes information about the following topics: • using the Command Line Interface (CLI) to enter commands • configuring the T1 or E1 Access Module to meet the requirements of your network •...

  • Page 34: Using The Command Line Interface

    Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules Using the Command Line Interface The following points will assist you when using the CLI: • a carriage return or ENTER is used to complete each command line <cr>...

  • Page 35: Configuring The T1 Or E1 Access Module

    Configuring and Connecting the T1/E1 Access Modules Passport 4400 T1/E1 and Digital Voice Module Manual Configuring the T1 or E1 Access Module The T1 or E1 access module configuration consists of three parts: • Profile configuration • Line parameters configuration •...

  • Page 36: Frameformat

    Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules For Profile, select 1 For T1Buildout, select the appropriate line length. frameFormat Use the frameFormat command to configure the profile for either superframe (D4), or extended superframe (ESF). Superframe consists of 12 frames and extended superframe consists of 24 frames.

  • Page 37: Linecode

    Configuring and Connecting the T1/E1 Access Modules Passport 4400 T1/E1 and Digital Voice Module Manual linecode Use the linecode command to select either AMI or B8ZS zero suppression. AMI disables B8ZS suppression; however, a bit density requirement is created which can be satisfied by assuring that the Data Terminal Equipment (DTE) is...

  • Page 38: E1 Line Parameters

    Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules E1 Line Parameters The configurable E1 line parameters are: • CRC4 Status • Idle Code • Line Code • TS16 Connection Note: Changes made with these commands take effect immediately; a system reset is not required.

  • Page 39: Idlecode

    Configuring and Connecting the T1/E1 Access Modules Passport 4400 T1/E1 and Digital Voice Module Manual idleCode Use the idleCode command to set the idle code for the DS0 channels. Values range from 0 to 255. The default idle code setting is 127 (0X7F).

  • Page 40: Ts16Connection

    Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules ts16Connection Use the ts16Connection command to specify the signaling system to be used in time slot 16. The following options are available: • toCAS, which supports G.704 channel associated signaling. In this method, a multiframe structure of 16 consecutive frames numbered 0 through 15 is used.

  • Page 41: Configuring The System Clock

    Configuring and Connecting the T1/E1 Access Modules Passport 4400 T1/E1 and Digital Voice Module Manual Configuring the System Clock This command is used to select one of three system clock sources for E1, as follows: • networkLineClock - not used.

  • Page 42: Connectionstate

    Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules ConnectionState The ConnectionState parameter is used to indicate how the DS0 channel is to be connected. The following options are available: Idle The idle option is used to place a DS0 channel in an idle state. In this state all existing connections to that DS0 channel will be removed and new assignments can be made.

  • Page 43: Connecting Ds0 Channels

    Configuring and Connecting the T1/E1 Access Modules Passport 4400 T1/E1 and Digital Voice Module Manual Connecting DS0 channels The following procedure lists the steps used to connect DS0 channels to voice or link port. Note: To connect to a DS0 channel, that channel must first be set to idle.
  • Page 44 Passport 4400 T1/E1 and Digital Voice Module Manual Configuring and Connecting the T1/E1 Access Modules For lineIndex, select localEnd; networkEnd is currently not supported. For ds0Index, select the channel number you want to connect. If you want to connect more than one DS0 channel (24 maximum for T1, 30 maximum for E1), each channel requires a separate command.

  • Page 45: T1/E1 Access Module Show And Test Commands

    T1/E1 Access Module Show and Test Commands This section describes the Show and Test commands, two tools designed in troublshooting the T1 and E1 Access Modules. Also described are the reset and clear commands. Command Line Interface All commands described in this section are entered using the Command Line Interface (CLI).

  • Page 46: Displaying The Ds0 Connections

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands LineStatus shows the present status of the DSX-1 line profile shows the parameters configured for each of the two T1/E1 profiles statistics displays statistical information on the DSX-1...
  • Page 47 T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual LineIndex localEnd(DSX-1)(operational) localEnd(DSX-1)(configured) DS0Index 2 (operational) 2 (configured) ConnectionState bypass voice (operational) idle (configured) LineIndex: Indicates the DS0 channel is connected to the DSX-1 line.

  • Page 48: Displaying The Ds0 Signaling Bits

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Displaying the DS0 Signaling Bits The Show T1/E1 ds0Signaling subcommand provides a real time display of the bit pattern for voice channel signaling bits ABCD. You can use the entry option to view a specific DS0 channel, or the table option to view all DS0 channels within...
  • Page 49 T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual LineIndex DS0Index RxABCDBits* TxABCDBits* localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1) localEnd(DSX-1)

  • Page 50: Displaying The Line Parameters

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Displaying the Line Parameters The CLI>sho t1e1 linepar subcommand is used to display the profile selected for the DSX-1 T1/E1 line. Use the entry option to view the parameters of the DSX-1 line.
  • Page 51 T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual T1LoopbackStatus : disable (operational) : disable (configured) E1CRC4Status : disable (operational) : disable (configured) E1TS16Connection : toCAS (operational) : toCAS (configured) Profile: Will always indicate the DSX-1 T1/E1 profile pa- rameter.

  • Page 52: Displaying The Line Status

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Displaying the Line Status The sho t1e1 lineStatus subcommand is used to display the present condition of the DSX-1 line. You can use either the entry option or the table option to view the status of the DSX-1 line, as follows.

  • Page 53: Displaying The System Clock

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Line Index Local end Interface T1 or E1 line Impedance Applicable to the E1 line only. Indicates whether the E1 line impedance is 75 Ω or 120 Ω...

  • Page 54: Timeresource

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands TimeResource The following displays may appear: • localLineClock - indicates that the clock source is taken from the DXS-1 line • internalClock - indicates that the clock is taken from an internal source...

  • Page 55: Displaying The System Status

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Out of Frame In T1 only, a value ranging from 1 to 65536 that in- dicates the number of times the receiving equip- ment has lost frame synchronization with the transmit end.
  • Page 56 Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands • No • Yes SelfTestResults: Indicates whether or not the self test was success- ful. The possible displays are: • Test Passed • Test Failed FlashEpromStatus: Indicates current status of the flash Eprom in the...

  • Page 57: Displaying The T1/E1 Test Results

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Displaying the T1/E1 Test Results This subcommand is used to display the T1/E1 line test status currently in progress. To obtain the test status display, enter: CLI>show t1e1 testResult...

  • Page 58: Using The Test Commands

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Using the Test Commands There are four groups of tests associated with the T1/E1 Access Module: • Channel Test • Line Test • Port Test •...

  • Page 59: Channel Pattern Test Description

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Channel Pattern Test Description This test outputs the selected test pattern (qrss, 511, loop, or fixed) over the transmit pair of the selected DS0 channel of the specified T1/E1 line, and compares any signal returned from the remote site on the receive pair of the same channel.

  • Page 60: Channel Loop Test Description

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Channel Loop Test Description The channel loop test connects the input data stream to the output data path of a selected DS0 channel on the specified line. This test overrides any existing connection configured on that DS0 channel.

  • Page 61: Line Tests

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Line Tests This group of subcommands is used to test all DS0 channels (24 T1 or 30 E1) of the DSX-1 line. These tests are interruptive and, unlike channel tests, leave existing connections in their present states while a test is in progress.

  • Page 62: External Digital

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Figure 4-3. diagrams the signal path of the external line test on the DSX-1 line. T1/E1 Access Module Local Line Interface Circuits E1T1 Channel Routing X = Termination Figure 4-3.

  • Page 63: Internal Line

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Figure 4-4. diagrams the signal path of the external digital test on the DSX-1 line. T1/E1 Access Module Local Line Interface Circuits DSX-1 T1/E1 Channel...

  • Page 64: Internal Digital

    Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands Figure 4-5. diagrams the signal path of the internal line test on the DSX-1 line. T1/E1 Access Module Local Line Interface Circuits T1/E1 Channel Routing x = Termination Figure 4-5.

  • Page 65: System Tests

    T1/E1 Access Module Show and Test Commands Passport 4400 T1/E1 and Digital Voice Module Manual Figure 4-6. diagrams the signal path of the internal digital test on the DSX-1 line. T1/E1 Access Module Local Line Interface Circuits T1/E1 Channel Routing x = Termination Figure 4-6.
  • Page 66 Passport 4400 T1/E1 and Digital Voice Module Manual T1/E1 Access Module Show and Test Commands 4-22...

  • Page 67: Digital Voice Module Configuration

    Digital Voice Module Configuration This section describes the options available to provision the digital voice channels supported by the Digital Voice Modules (DVMs). Each Digital Voice module supports one digital voice channel. The commands described in this section are entered using the Command Line Interface (CLI).
  • Page 68 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Procedure 1: Setting the Ingress Table 1. To access the ingress table commands, enter: CLI>set voice ingressTable ingressNumber manipulationString CLI>set voice ingressTable ingressNumber <IngressIndex> : INTEGER (1..32) <IngressNumber>...

  • Page 69: Egress Table

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Character Used as a single wildcard Used to wildcard the rest of the digits in the string immediately follow- ing the #. Deletes a particular number (n) of digits immediately following these characters.
  • Page 70 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration requisite numbers, If the termination is an FXS port, the telephone set attached to that port will ring. Procedure 2: Setting the Egress Table 1. To access the egress table commands, enter: CLI>set voice egressTable...

  • Page 71: Call Forwarding And Digit Manipulation

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Character Used as a single wildcard. Used to wildcard the rest of the digits in the string immediately following the #. Inserts a 1-second pause in the string.
  • Page 72 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration New York Los Angeles Digital Node 1 Node 2 Digital Passport 4400 Passport 4400 53456 53452 53458 Passport Network 53459 53460 53461 PSTN 751-1234 Figure 5-1. Call Forwarding Using the Ingress/Egress Tables...
  • Page 73 Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Example 1 User dials 7, then Los Angeles New York egress 21253456 ingress table table manipulation manipulation string: D3***** string: 2125**** Digits forwarded: PBX sees: 53456 21253456 Example 2...
  • Page 74 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Example 2 The user connected to a station of the Los Angeles PBX is attempting to reach a party in the New York area whose telephone number is 7511234. To do that, the caller dials 7, then 21207511234.
  • Page 75 Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Digital Node 1 Digital Node 2 Passport 4400 Passport 4400 2345 Password Network AUVM Node 1. PSTN (FXS) Ingress Table Ingress Index (FXO) Number Number Analog PBX 12*#...

  • Page 76: Summary For Example 3

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration The six DVMs are configured with extension numbers 121 through 126, respec- tively, and are logically connected over an E1 line to a digital PBX. Connection to the E1 line was previously established with the command CLI>set t1e1 ds0Connect ..

  • Page 77: Summary For Example 4

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Summary for example 4 Received digits Voice port phone num- Manipulation string in Digits forwarded from voice egress table port to PBX none none Example 5 To reach a station, such as 5685, on the analog PBX of Node 2, the user at Node 1 would dial 1325685.

  • Page 78: Auto Gain Control

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration • analog operation (E&M)* • fax digitizing rate • auto gain control • format • background • FXS signaling format* • bandwidth • input level gain • busyout mode •...

  • Page 79: Background

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual analogOperation (E&M Only) [disable] autoGainControl [regenerated] backGround [voice activated] bandwidth [system controlled] busyOutMode [North America] callProgressTone µ -Law] companderFormat [1 second] delay (Regeneration) [10 seconds] dialDigitTimeLimit [G.729] digitizingRate...
  • Page 80 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Procedure 3: Using the autoGainControl subcommand To set the auto gain control, enter: CLI>set voice profile autoGainControl <Profile> : INTEGER (1..32) <AutoGainControl> : disable | enable Profile: S elect 1 of 32 profiles...

  • Page 81: Call Progress Tones

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Procedure 5: Using the bandwidth subcommand To set the bandwidth utilization option, enter: CLI>set voice profile bandwidth <Profile> : INTEGER (1..32) <Bandwidth> : voiceActivated | continuous Busyout Mode...
  • Page 82 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Table 5-1. Definition of Call Progress Tones Option Dial Ringing Busy Congestion Country Cadence Cadence Cadence Cadence Frequency Frequency Frequency Frequency Continuous 2 - 4 0.5 - 0.5 0.25 - 0.25...

  • Page 83: Compander Format

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Compander Format The companderFormat subcommand is used to set the compander format to: • µ-Law for T1 connections • A-Law for E1 connections Procedure 8: Using the companderFormat subcommand To set the compander format type enter: CLI>set voice profile companderFormat...

  • Page 84: Digitizing Rate

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration The dialDigitTimeLimit subcommand is used to specify the maximum time (from the start of one digit to the start of the next) for accepting dialed digits. When the time limit is reached, further digits are not accepted, and the accumulated digits are forwarded to the remote voice channel.

  • Page 85: Dvm Signaling Format

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual DVM Signaling Format The dvmSignalingFormat subcommand is used to match the signalling format of the digital voice port to the interfacing PBX. The following options are available: • Tie trunk •...

  • Page 86: 2280 Tone

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Tie Invert For tieInvert, signaling bit A defines the on-hook/off-hook conditions as shown below. Signaling bits B, C, and D are denoted by “X”, a don’t care condition.

  • Page 87: Inverted Dc5B

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Inverted DC5B For dc5bInvert,signaling bits A, B, C, and D define the on-hook/off-hook conditions as follows: Forward Backward State Idle (On-Hook) High High High High Seized (Off-Hook) High...

  • Page 88: Israel Cas

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration R2/Q.421 For r2Q421, signaling bits A, B, C, and D define the on-hook/off-hook states as follows: Forward Backward State Idle High High High High Seized High High High...

  • Page 89: Spain Cas

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Spain CAS For spainCAS, signaling bits A, B, C, and D define the on-hook/off-hook states as follows: Forward State Idle Tx High High idle Rx High High Off-Hook Tx...

  • Page 90: Wink Start

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Wink Start When CAS signaling format winkStart is selected, signaling bit A defines the on- hook/off-hook conditions as follows (signaling bits B, C, and D are denoted by “x”, a don’t care condition):...
  • Page 91 Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual It is assumed that the trunk access code of the local PBX is 7, and that the network extension number of the remote voice channel is 1234. It is further assumed that both voice channels are configured for the winkStart DVM signaling format, and...

  • Page 92: Echo Canceller

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Echo Canceller The echoCanceller subcommand is used to enable or disable the echo canceller feature. Procedure 13: Using the echoCanceller subcommand To set the echo canceller feature, enter: CLI>set voice profile echoCanceller...

  • Page 93: Format (Regeneration)

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Procedure 15: Using the faxDigitizingRate subcommand To set the fax digitizing rate, enter: CLI> set voice profile faxDigitizingRate <Profile> : INTEGER (1..32) <FaxDigitizingRate> voiceRate | 2400bps| 4800bps | 7200bps|...

  • Page 94: Jitter

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Jitter The jitter subcommand is used to enter a delay time in the jitter buffer, a device used to compensate for the delay of transmitted voice packets across a network.

  • Page 95: Mode

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Mode The mode subcommand is used to set the voice channel to voice/fax, or voice only operation. Both options are described below: • voice/fax operation - in which the voice channel will process voice, fax, or modem (data) signals.

  • Page 96: Setting The Voice Parameters Profile Id

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Setting the Voice Parameters Profile ID This subcommand is used to assign a previously configured voice profile to a voice fax/channel. You may assign the same profile to more than one channel by repeating this command.

  • Page 97: Setting The Voice Switching Profile Options

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Setting the Voice Switching Profile Options To configure the switching parameters of a voice/fax channel, you must first create a library of voice/fax switching profiles (maximum 32). Each profile includes a set of voice/fax switching characteristics specified by the administrator of your...

  • Page 98: Autocall Number

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Autocall Number This subcommand allows the user to preselect a fixed destination. To do that, the user selects an ingress table profile index number that corresponds to the extension number of the desired destination.

  • Page 99: Autocall Application

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Autocall Application Autocall allows multiple users to contend for a limited number of resources within the Network, reducing costs. As shown in Figure 5-4., a headquarters office in Los Angeles is connected over three separate WAN links to field offices in Chicago,...

  • Page 100: Call Negotiation

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration Call Negotiation This option is reserved for future use. Closed User Group This subcommand operates in conjunction with the incoming and outgoing call restriction subcommands, and is used to restrict calls to all but a select group of users.

  • Page 101: Outgoing Call Restrictions

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual For IncomingCallRestr, select one of the following: NoRestriction Incoming calls will be accepted under two condi- tions • There is no restriction on the caller side • Caller restriction is by class only CheckCUGID Incoming calls can be received only if the caller’s...

  • Page 102: Restriction By Class

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration For OutgoingCallRestr, select one of the following: NoRestriction Your outgoing calls are not restricted, but their ac- ceptance is subject to the restrictions of the called number ClosedUserGroupCall Outgoing calls are restricted to destinations whose user group number matches the caller’s...

  • Page 103: Call Restriction Matrix

    Digital Voice Module Configuration Passport 4400 T1/E1 and Digital Voice Module Manual Call Restriction Matrix The following Table is a matrix of restrictions on all combinations of calls that may occur between receiver and caller. Call Restriction Matrix Outgoing Restrictions...

  • Page 104: Tx Priority

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Configuration TX Priority This subcommand is used to set the priority of voice signals within the Passport 4400 priority hierarchy. Procedure 27: Setting the priority number for voice To set the priority number for voice, enter: C:I>...

  • Page 105: Digital Voice Module Show And Action Commands

    Digital Voice Module Show and Action Commands This section describes the Show and Action commands and subcommands tools designed to troubleshoot and test the digital voice module circuits. Also included are the commands used to reset the voice counters. Command Line Interface All commands described in this section are entered using the Command Line Interface (CLI).

  • Page 106: Displaying Voice Channels Status

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands Displaying Voice Channels Status The show voice channel status command allows you to display the status of a specific voice channel or for all voice channels within the Passport 4400 unit. In addition, if connected, the status of the remote voice channel (channels) will also be displayed.

  • Page 107: Description Of Status Items Displayed

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual Description of status items displayed CardNumber: Indicates the physical location of the voice card within the Passport 4400 unit. ChannelNumber: Indicates the current channel number assigned to the port on the voice card.

  • Page 108: Displaying The Egresstable

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands RemoteChNodeName: Identifies the name of the node in which the remote channel is located RemoteChNumber: Identifies the logical module slot (B, C, D, or E),...

  • Page 109: Displaying The Ingresstable

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual operational indicates a current (not saved) value. If it is different • than configured, it will revert to the configured value following reset or power off.

  • Page 110: Displaying The Voice Channel Parameters

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands To obtain the display for a specific ingress index, enter: CLI>show voice ingress entry (this command also requires the ingress index number) To obtain the display of all ingress indexes, enter: CLI>show voice ingress table (this command requires no further...

  • Page 111: Channel Number

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual You will receive the following typical display: CardNumber :limB (operational) :limB (configured) ChannelNumber :1 (operational) :1 (configured) SwitchingProfileID :1 (operational) :1 (configured) ProfileID :1 (operational)
  • Page 112 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands A typical display for profile number 1 is shown below Profile :1 (operational) :1 (configured) Mode :voiceFax (operational) :voiceFax (configured) DigitizingRate :rateG729 (operational) :rateG729 (configured)
  • Page 113 Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual DiscSupervision Not applicable for the digital voice modules LineImpedance Not applicable for the digital voice modules MaxOutputLevel Not applicable for the digital voice modules RegenerationDelay...

  • Page 114: Displaying The Voice Switching Profiles

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands Displaying the Voice Switching Profiles This command is used to display the previously configured switching profiles You can select either a specific switching profile or all switching profiles within the Passport 4400 unit.

  • Page 115: Displaying Voice Call Statistics

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual Displaying Voice Call Statistics The show voice statistics command allows you to display statistical information relating to voice traffic of a specific voice channel or of all voice channels within the Passport 4400 unit.

  • Page 116: Description Of Statistics Items Displayed

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands Description of Statistics Items Displayed CardNumber: Indicates the physical location of the voice card within the Passport 4400 unit. ChannelNumber: Indicates the channel number assigned to the port on the voice card.

  • Page 117: Using The Action Commands

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual RxInvalPayloadFrame Displays the number of invalid payload frames received from the remote voice channel due to incorrect frame length or type. RxInvalPUMPMsg Displays the total number of PUMP messages received from the remote voice channel with unknown message type, IEs, or invalid length.

  • Page 118: System Action Commands

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands System Action Commands To access the voice system action commands, enter: CLI> set voice systemActions <Action> : disconnect | loopbackTest| terminateTest | forceConnect Action The type of system action you intend to perform. At present, the action involves either starting or stop- ping loopback tests on all channels.
  • Page 119 Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual Procedure 1: Using the test setup shown in Figure 23, proceed as follows: Integration Unit Digital lBX TAM/EAM Station Trunk T1/E1 (DS0 #1+79) Side Side...

  • Page 120: Using The Reset Voice Commands

    Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands 7. Test the remaining Digital Voice Modules in the T1/E1 Access Module and associated Digital Voice Expansion Modules by repeating steps 1 through 6 with the appropriate voice channel number.

  • Page 121: Reset Voice Statistics Counters

    Digital Voice Module Show and Action Commands Passport 4400 T1/E1 and Digital Voice Module Manual Reset Voice Statistics Counters This group of subcommands is used to reset the counters that store statistical information related to voice. You may reset all voice channel counters, a single voice channel counter, or the network counter.
  • Page 122 Passport 4400 T1/E1 and Digital Voice Module Manual Digital Voice Module Show and Action Commands 6-18...

  • Page 123: Remote Server Interface Commands

    Remote Server Interface Commands This section describes the Command Line Interface (CLI) commands associated with the Remote Server Interface (RSI). RSI is a program resident within the local Passport 4400 unit. This program is involved in resolving network addresses of locally dialed phone numbers. To do that, the RSI communicates with the Remote Server Agent (RSA), a program resident within the companion Passport 160 unit.

  • Page 124: Address Resolution

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands Address Resolution When dialing a number from a telephone attached to the local Passport 4400 unit, the destination address is resolved one of three ways, as follows: • Local number, locally resolved. If the number appears in the local Egress Table, it is a local number.
  • Page 125 Remote Server Interface Commands Passport 4400 T1/E1 and Digital Voice Module Manual Local Passport 4400 Unit Local Extension Local Extension Number 2 Number 1 To Remote Passport 4400 Dial Number Voice Section Generate Egress Connect to Access Remote Busy Signal...

  • Page 126: Rsi Command Line Description

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands RSI Command Line Description This section describes the commands and subcommands associated with provisioning the RSI. Also described are the commands and subcommands used to obtain statistical information about the RSI.

  • Page 127: Adding The Rsi Server

    Remote Server Interface Commands Passport 4400 T1/E1 and Digital Voice Module Manual Adding the RSI Server This command is used to assign a network server to the RSI by DNA address and name, and specify whether the server is to be primary or secondary.

  • Page 128: Defining The Rsi

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands Defining the RSI Use this command to access the following subcommands: define rsi CLI> parameter server Use the define rsi parameter subcommand to define the size of the RSI cache and the VNCS ID.

  • Page 129: Reset Commands

    Remote Server Interface Commands Passport 4400 T1/E1 and Digital Voice Module Manual Deleting an RSI Server This command is used to delete a previously provisioned RSI server, as follows: delete rsi server CLI> <DNAAddress> : “String” (1..40) For DNAAddress, enter the DNA address string of the RSI server you intend to...

  • Page 130: Setting The Rsi Parameters

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands Setting the RSI Parameters There are three parameters you may set with this command, as follows: • Cache Status • Number of address resolution request attempts • Response before time-out Cache Status Use the following subcommand to enable or disable the cache.

  • Page 131: Show Rsi Command

    Remote Server Interface Commands Passport 4400 T1/E1 and Digital Voice Module Manual Show RSI Command To display current information about the RSI, enter show rsi at the CLI> prompt. You will receive the following options: • cache • definedParameters • server •...

  • Page 132: Displaying The Rsi Server Information

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands Displaying the RSI Defined Parameters To display the previously defined RSI parameters enter: cli>show rsi define You will receive the following typical display VNCSId: NumOfCacheEntries VNCSId: The ID of the associated VNCS...

  • Page 133: Displaying The Rsi Set Parameters

    Remote Server Interface Commands Passport 4400 T1/E1 and Digital Voice Module Manual DNAAddress : The DNA address of the server ServerName : The name given to the server ServerType : Whether primary or secondary PortId : The number of the port...

  • Page 134: Displaying The Rsi Statistics

    Passport 4400 T1/E1 and Digital Voice Module Manual Remote Server Interface Commands Displaying the RSI Statistics To obtain a display of the RSI statistics, enter: cli>show rsi statistics You will receive the following typical display CacheCount : 85 RxDNAReqCount : 103...

  • Page 135: Specifications

    Specifications T1 Access Module DSX-1 T1 Interface: 24, at 64 Kbps Number of DS0 Channels: 110 feet to 660 feet in increments of Line Buildout: 110 feet; software selectable RJ48C Interface Connector: Mini Bantam Test Connector: 24 maximum; six are optionally Digital Voice Modules: mounted on the T1 Voice Module;...

  • Page 136: E1 Access Module

    Passport 4400 T1/E1 and Digital Voice Module Manual Specifications E1 Access Module DSX-1 E1 Interface: 30, at 64 Kbps. Number of DS0 Channels: 75 Ω Coaxial Line: 2 BNC Interface Connectors: connectors, one each for the input and output wire pair.

  • Page 137: Agency Requirements And Compliance - B

    If a need arises in the future, the telephone company will call the user and request the following information: • Manufacturer of the device: MICOM Communications Corp, a Nortel (Northern Telecom) Company. • Model number of the device (s): 5000TVM/2, 5000DVM/1, 5000DVEM •...

  • Page 138: Telephone Company: Rights And Responsibilities

    — 04DU9-DN — 04DU9-1KN — 04DU9-1SN • Service Order Code: 6.0F • Manufacturer of the device: MICOM Communications Corp, a Nortel (Northern Telecom) Company. • Model number of the device (s): 5000EVM/2, 5000DVM/1, 5000DVEM • BABT Certificate Number AA606-535 • Type of Interface: —...

  • Page 139: Repair Instructions - For Use By Qualified Maintenance Personnel Only

    Agency Requirements and Passport 4400 T1/E1 and Digital Voice Module Manual Repair Instructions - For Use By Qualified Maintenance Personnel Only If you experience any operational problems while using your equipment, determine if the problem is due to a malfunction in your equipment or in the telephone interface.

  • Page 140: Equipment Attachment Limitations For Operation In Canada

    Passport 4400 T1/E1 and Digital Voice Module Manual Agency Requirements and Compliance Equipment Attachment Limitations for Operation in Canada CP-01, Part I Section 10.1 NOTICE: The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecom- munications network protective, operational and safety requirements.

  • Page 141: T1 Access Module Cabling Requirements - C

    T1 Access Module Cabling Requirements The T1 Voice Module, like any other T1 device, uses two twisted wire pairs for connection to the T1 network. These wire pairs may include in-plant or on-campus wiring that is privately owned. In order to select wire pairs, consider the following: •...
  • Page 142 Passport 4400 T1/E1 and Digital Voice Module Manual T1 Access Module Cabling Requirements In cables of 100 pairs or larger, these color-coded groups are maintained and termed binder groups. In smaller cables, it is occasionally necessary to subdivide the color-coded group into separately wrapped pairs to form a smooth cable assembly.
  • Page 143 T1 Access Module Cabling Passport 4400 T1/E1 and Digital Voice Module Manual Binder Group Shield Shield Binder Binder Group Group 7-12 10-18 12-Pair 18-Pair Binder Group Shield Shield Binder Binder Group Group 1-12 38-50 13-25 1-12 26-37 13-25 25-Pair 50-Pair...

  • Page 144: Calculating Usable Cable Distance

    Passport 4400 T1/E1 and Digital Voice Module Manual T1 Access Module Cabling Requirements Calculating Usable Cable Distance Usable cable distance varies as a function of wire gauge, insulation type, and temperature. Usable cable distance is also affected by the way transmit and receive pairs are assigned to binder groups, and by the number of systems operations in a binder group.
  • Page 145 T1 Access Module Cabling Passport 4400 T1/E1 and Digital Voice Module Manual Table C-1. Maximum Distance of Exchange-Grade Telephone Cable, With Transmit and Receive Pairs in the Same Binder Group Minimum Binder Size Maximum Distance in Feet (Loss in dB)*...
  • Page 146 Passport 4400 T1/E1 and Digital Voice Module Manual T1 Access Module Cabling Requirements...

  • Page 147: Code Download

    Code Download The T1 and E1 Voice Module and the Digital Voice Modules are equipped with Flash EPROM for updating of operating software. Source Code The Passport 4400 Flash EPROM contains the operating code for the T1/E1 Voice Module and the Digital Voice Modules. When to Download When upgrading the Flash EPROM of the T1/E1 Voice Module or the Digital Voice Modules.

  • Page 148: Digital Voice Module

    Passport 4400 T1/E1 and Digital Voice Module Manual Code Download Digital Voice Module To download code into a single Digital Voice Module, enter: CLI>download voice channel You will be prompted as follows: <CardNumber> : limB | limC| limD | limE <ChannelNumber>...

  • Page 149: Dvm Level Adjustment Procedures - E

    DVM Level Adjustment Procedures The Digital Voice Modules require a common reference level throughout the network. To meet this requirement, it may be necessary to compensate for variations in the interfacing external telephone equipment by adjusting the input and output levels of the Digital Voice Modules. Note: These procedures are intended for equipment operated outside of the U.S.A.
  • Page 150 Passport 4400 T1/E1 and Digital Voice Module Manual DVM Level Adjustment Procedures Attenuation. You may select any two Digital Voice Modules and any two DS0 channels to suit your installation. Access the Set T1E1 command line, and provision the set port for the T/ DSX-1 line and system clock source.
  • Page 151 DVM Level Adjustment Procedures Passport 4400 T1/E1 and Digital Voice Module Manual Station 1 Model VNA-70A Station 2 Model VNA-70A Voice Network Analyzer Voice Network Analyzer TEST TEST TONE LOOP TONE LOOP BRDG BRDG DIGITS DIGITS TERM RESET TERM RESET...
  • Page 152 Passport 4400 T1/E1 and Digital Voice Module Manual DVM Level Adjustment Procedures Power up the two VNAs, set the SETUP switch on both VNAs temporarily to BRDG, and the other switches to TEST, OFF. Pick up the telephone at station 1 and dial the T1/E1 trunk access code, typically 7.

  • Page 153: Copy Channel B1 To The Other Channels

    DVM Level Adjustment Procedures Passport 4400 T1/E1 and Digital Voice Module Manual If the displayed value in step 12 was more than -8 dB, add attenuation, as necessary. To do that, enter, CLI> set voice profile outputLevelAttn For example, if the displayed value was -5 dBm, add 3 dB of attenuation.
  • Page 154 Passport 4400 T1/E1 and Digital Voice Module Manual DVM Level Adjustment Procedures...
  • Page 155 Glossary A B or A B C D Signalling bits associated with every digital voice channel. In T1 these bits are “robbed” from the least significant bit of every sixth voice sample. In a T1 extended superframe, A is obtained from frame 6, B from frame 12, C from frame 18, and D from frame 24.
  • Page 156 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary AMI (Alternate Mark Inversion) In industry usage, AMI is a bipolar digital transmission format, where every other logical ones bit (mark) alternates between plus 3 volts and minus 3 volts, with logical zeros at zero volt. See bipolar violation.
  • Page 157 Glossary Passport 4400 T1/E1 and Digital Voice Module Manual (Channel Associated Signalling) - A means of passing E1 signalling information, using time slot 16 in a multiframe structure of 16 frames (0-15). Each frame, other than frame 0, carries signalling information bits ABCD for two voice channels.
  • Page 158 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary In the T1 Voice Module, the DS—1 interface includes a built—in CSU. DACS (Digital Access Crossconnect System) A service of the Public Data Network to switch individual DS0 channels carried on a T1/E1 line to separate remote points in selected countries.
  • Page 159 Glossary Passport 4400 T1/E1 and Digital Voice Module Manual DS0 Channel, T1 One of 24 time slots on the T1 interface line which carries data or voice. DS1 (Digital Service Level 1) A 1.544 Mbps (T1) digital service in North America, consisting of 24 DS0 channels.
  • Page 160 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary E1 Multiframe Refers to either of two independent E1 framing implementations, as follows: • CAS Signaling Multiframe is a sequence of 16 E1 frames for the purpose of carrying, in addition to voice and data, CAS signaling information for each of 30 voice channels, and remote alarm information.
  • Page 161 Glossary Passport 4400 T1/E1 and Digital Voice Module Manual Hunt Group A group of voice channels arranged sequentially and with a common telephone number. Every incoming call is assigned to the first channel in the sequence. If that channel is busy, the call is assigned to the next channel, etc., until a free channel is found to answer the call.
  • Page 162 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary Link Port Rate A configuration option of 56 or 64 Kbps. The actual rate is determined by the selected option times the number of DS0 channels assigned for connection to that link port. Example: selected option = 56 Kbps;...
  • Page 163 Glossary Passport 4400 T1/E1 and Digital Voice Module Manual PSTN Public Switched Telephone Network, typically the local telephone company. QRSS (Quasi Random Signal Source) A pseudo random serial test pattern with a length of 1048576 bytes. Is limited to a maximum of 14 consecutive zeros.
  • Page 164 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary A North American standard for digital voice and data communication transmitted at the rate of 1.544 Mbps. T1 Voice Module This is a single—card T1 Drop and Insert Channel Bank that can accommodate up to six Digital Voice Modules.
  • Page 165 Glossary Passport 4400 T1/E1 and Digital Voice Module Manual X.21 An Electrical and mechanical standard for interconnecting high-speed (above 19.2 dBm) data communications equipment used mainly in European countries. Yellow Alarm A signal received from a downstream node in a red alarm condition.
  • Page 166 Passport 4400 T1/E1 and Digital Voice Module Manual Glossary Glossary-12...
  • Page 167 Index Digital Voice Module (DVM) configuration Agencies Display BABT Digital Voice Expansion Module Indicator Functions E1 Access Module indicator functions egress table AIS (Alarm Indication Signal) ingress table Glossary-1 definition indication T1 Access Module Alarms indicator functions LED display T1/E1 indicator functions –...
  • Page 168 4-10 T1 Access Module T1/E1 6-11 voice call Status 4-11 T1/E1 5-37 Matrix, Call Restrictions voice channel 1-10 Model Numbers Glossary-9 Superframe (D4) Definition Switching Profiles ID Setting, Voice Channel Network Address Resolution 5-31 Switching Profiles, Voice Channel On-Hook/Off-Hook Delay Testing 4-14 T1/E1...
  • Page 170 Passport 4400 T1/E1 and Digital Voice Manual Address comments to: Senior Manager, Technical Publications Northern Telcom MICOM Communications Corp. 4100 Los Angeles Ave. Simi Valley, CA 93063-3397 U.S.A. 1-805-583-8600 © 1998 Northern Telecom All rights reserved Information subject to change without notice Publication: 800-1944-20, Rev.

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