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Excalibur ISX 5312 Operation Manual

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Excalibur
ISX 5312/5314
TM
T-1 Multiplexer

Installation and Operation

15D30A-1/B
1/98
Milgo Solutions, Inc.
1619 N. Harrison Parkway
P.O. Box 407044
Fort Lauderdale, FL 33340-7044
Internet: http://www.milgo.com

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Summary of Contents for Excalibur ISX 5312

  • Page 1: Installation And Operation

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 15D30A-1/B 1/98 Milgo Solutions, Inc. 1619 N. Harrison Parkway P.O. Box 407044 Fort Lauderdale, FL 33340-7044 Internet: http://www.milgo.com...
  • Page 2 Milgo support center for details. Second Edition, January, 1998 Excalibur and CMS are trademarks of Milgo Solutions, Inc. All other logos and product names are trademarks or registered trademarks of their respective companies. ©1999 Milgo Solutions, Inc.
  • Page 3 Milgo Solutions Customer Information Contacts CORPORATE HEADQUARTERS Milgo Solutions SA Milgo Solutions, Inc. Parc du Colombier 1619 North Harrison Parkway 18 Rue Jules Saulnier Sunrise, Florida 33323-2802, U.S.A. 93206 Saint-Denis Tel: (954)-846-1601/(800)-333-4143 Cedex, France Fax: (954)-846-3935 Tel: +331 (0) 49 33 5800 Internet: http://www.milgo.com Fax: +331 (0) 49 33 5851 Milgo Solutions BV...
  • Page 4 MILGO AFFILIATE SUPPORT CENTERS: ASIA/PACIFIC Region Milgo Solutions (Hong Kong), Ltd. Sun House 6th Floor 181 Des Voeux Road, Central Hong Kong Tel: 852-2815-1886 Fax: 852-2815-2895 Milgo Solutions (Hong Kong) supports: • China (southern provinces) • Japan • Korea • Hong Kong •...

  • Page 5: About This Manual

    About This Manual Manual Description The Excalibur ISX 5312/5314 T-1 Installation and Operation manual provides the information you need to properly install, operate, and troubleshoot this unit. It assumes you are familiar with basic data communications principles and terminology. This manual consists of the following chapters: •...
  • Page 6 References to labeled parts of a device, such as buttons and connectors, are shown in boldface. For example: The DS1A connector is located on the ISX 5312/5314’s rear panel. • References to text that appears on the control panel LCD screen are shown in .

  • Page 7: Table Of Contents

    Table of Contents Chapter 1 - Introduction Overview ................................1-1 Operating Environment............................ 1-2 Models................................1-4 Standalone Model ............................1-4 Central Site Model............................. 1-5 Standard Features ............................. 1-6 AT&T ASDS Compatibility........................1-6 Menu-Driven Front Panel Display ......................1-6 Password Protection ..........................1-6 Integral DSU/CSU.............................
  • Page 8 Table of Contents AC Power Connection ........................... 2-15 Verifying the Ethernet Link Connection ....................... 2-16 Chapter 3 - Using the Front Panel Introduction ..............................3-1 Front Panel Components ..........................3-1 What You Will See First ..........................3-2 Moving Through the Menus ..........................3-2 Alarm Display..............................
  • Page 9 Table of Contents Hot Spare ..............................4-18 Network Management System ........................4-23 Protocol..............................4-23 Speed ............................... 4-24 NTS................................4-24 T7 Via Dial Modems ..........................4-24 Remote T7 Via a DS0 Channel ....................... 4-41 Port Parameters .............................. 4-43 DS0 ................................4-44 Rate................................
  • Page 10 Table of Contents Chapter 5 - Online Operation Overview................................5-1 Entering the Status Menu ..........................5-1 DSU Status............................... 5-3 NMS Status ............................... 5-8 APC Status .............................. 5-12 Hot Spare Status............................5-16 Port Status..............................5-17 T-1 Line Status .............................. 5-20 Error Statistics ............................... 5-25 Local and Telco Registers........................
  • Page 11 Important Safety Instructions 1. Never install telephone wiring during a lightning storm. 2. Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. 3. Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
  • Page 12 Excalibur ISX 5314 T-1 Multiplexer - Standalone Model...

  • Page 13: Chapter 1 - Introduction

    Models are available with one or two long-haul network interfaces. The Excalibur ISX 5312 provides two V.35 DTE ports, and the Excalibur ISX 5314 provides four V.35 DTE ports, which allows you to run more data applications on one unit.

  • Page 14: Operating Environment

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Operating Environment The ISX 5312/5314 provides one or two long-haul network interfaces to full or fractional T-1 links, or to Frame Relay services. It performs the time slot interchange (TSI) function, which enables it to connect a DS0 channel from one T-1 interface to the other T-1 interface.
  • Page 15 Kbps SNMP Manager ISX 5010 ISX 5010 Subrate Subrate Multiplexer Multiplexer Figure 1-2. ISX 5312/5314 with Two Network Interfaces and SNMP via an External Router LAN Bridge/Router LAN Bridge/Router ISX 5312/5314 ISX 5312/5314 T-1 LINE T-1 LINE Nx56/64 Kbps Nx56/64 Kbps...

  • Page 16: Models

    Figure 1-4. ISX 5312/5314 Internet Service Provider Application Models The Excalibur ISX 5312 and Excalibur ISX 5314 come in a variety of models to suit your needs. Models can be customized as follows: • Standalone or high-density central site (the ISX 5312 is available only as a standalone model) •...

  • Page 17: Central Site Model

    Excalibur Card Carrier (Figure 1-5) or ISX 5010 chassis (Figure 1-6). The Excalibur Card Carrier can house up to 16 p.c. cards in a space just 10” (25 cm) high by 17” (43 cm) wide. Up to six card carriers can be installed in a single 6-foot rack, providing housing for up to 96 ISX 5314 central site units.

  • Page 18: Standard Features

    To select an option, simply press the button beneath it. Figure 1-7 shows a typical menu display in which you are prompted to select the source of timing signals for the ISX 5312/5314's transmit clock.

  • Page 19: Integral Dsu/Csu

    T-1 line fails. The criteria required for the transfer are defined in AT&T Technical Reference 54017A1. • Hot Spare - The ISX 5312/5314 provides the automatic transfer to a spare T-1 line when the primary T-1 line fails, or from the spare line to the primary line when the primary line is in good state.

  • Page 20: Dial-In Access For Front Panel Emulation

    DSU and T-1 line alarm. You can also set the ISX 5312/5314 to sound a beeper when it detects an alarm condition. Alarm conditions are also reported to the T7 manager or to SNMP manager as traps (if the network is so equipped).

  • Page 21: Esf Diagnostic Monitoring

    T-1 line. You can also loop all the channels assigned to two T-1 lines in a connection. The ISX 5312/5314 also provides a built-in QRSS test pattern generator, which eliminates the need for separate BERT test equipment.

  • Page 22: Cms T7 Compatibility

    CMS T7 Compatibility For networks that require comprehensive management, testing, and control features, the Excalibur ISX 5312/5314 can operate with a CMS 400 T7 manager. The CMS 400 provides the following capabilities: • ESF Diagnostic Monitoring - allows you to monitor the T-1 circuit's performance.

  • Page 23: Telnet Client Support

    TCP/IP and a Telnet application. By entering a valid logon sequence, you can perform operating procedures as if you were sitting at the ISX 5312/5314’s front panel. This feature allows service personnel to access a specific ISX 5312/5314 for configuration or diagnostic purposes, using commonly available software running on a minimal platform.

  • Page 24: Front Panel Emulation

    Once the Telnet session is established, the user may log off at any time by pressing the logoff key. Optionally, the ISX 5312/5314 may initiate the logoff sequence automatically if no activity is detected for a user-selectable time period. The ISX 5312/5314 allows only one Telnet session at a time.

  • Page 25: Management Interfaces

    Introduction Note: The NMI port configuration parameters (protocol, speed, NTS), IP address, and Gateway address should not be changed using this application. Changing these parameters results in terminating the ability to manage the unit. Management Interfaces Access to management capabilities is provided via an Ethernet (10Base-T) port or via an NMI port.

  • Page 26: External Dial Backup

    The External Dial Backup feature operates in both T-1 and FT-1 environments. You can configure one DTE port (ISX 5312) or two DTE ports (ISX 5314) to provide dial backup for the unit’s dedicated DTE port(s). The dedicated DTE port(s) are connected to the DS1 line.
  • Page 27 Introduction ISDN B R I 20 0 0 B R I 20 0 0 ISDN Term i n al A d a pter ISDN Term i n al A d a pter K b p s K b p s Fai l u r e Cond i t i o n DTE 2...
  • Page 28 This forces WIN95 to accept a blank page...

  • Page 29: Chapter 2 - Installation

    The following steps must be completed to install the Excalibur ISX 5312/5314: 1. For the standalone model, place the unit in a suitable location. For the central site model, install the unit in the Excalibur Card Carrier or in the ISX 5010 chassis.

  • Page 30: Unit Placement

    The first step in installing the standalone Excalibur ISX 5312/5314 is to place it in a suitable location. The ISX 5312/5314 can be placed on any stable, flat surface or it can be mounted in a standard 19-inch (48 cm) equipment rack using the optional Rack Mount Kit (Part No.
  • Page 31 Installation DTE 1 DTE 3 5010 5010 5314 5314 5010 5010 5314 5314 DTE 2 DTE 4 Figure 2-1. Jumper Locations - Central Site Model ISX 5314...

  • Page 32: Setting Switches (Central Site Model Only)

    • Switch 2 On (Down) - Select this setting if the unit is housed in an ISX 5010 chassis. • Switch 2 Off (Up) - Select this setting if the unit is housed in an Excalibur Card Carrier. (Default) Switches 3 and 4 on the switchbank are not used.

  • Page 33: Cable Connections

    Installation Cable Connections You can now connect the ISX 5312/5314 to the DTEs, T-1 line, and accessory equipment. On the standalone model, all interface connectors are located on the rear panel, as shown in Figures 2-3 and 2-4. On the central site model, the connectors are located on the transition board, as shown in Figure 2-5.
  • Page 34 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation ISX 5314 Port 1 Port 3 Port 2 Port 4 RELAY Figure 2-5. Central Site Excalibur ISX 5314 Transition Board...

  • Page 35: Connecting To The Dtes

    (You can order this cable from Milgo.) To connect to the DTE, plug the male end of the cable into the ISX 5312/5314 and plug the female end into your standard V.35 cable. Table 2-1 lists the pin and signal assignments for this connector. The cable diagram is provided in Appendix B.

  • Page 36: Connecting To The T-1 Line Or To External Equipment

    Ring Indicator. Connecting to the T-1 Line or to External Equipment For units equipped with two T-1 interfaces, the Excalibur ISX 5312/5314 provides two 8-pin RJ48C female jacks labeled DS1A and DS1B for connecting to the T-1 line. The jack labeled DS1A is provided for units equipped with a single T-1 interface. Use Cable Part No.

  • Page 37: Connecting To External Dial Backup Device

    When connecting to a BRI 2000, use adapter cable part no. 5956-879G (26-pin micro male to 34-pin female). Plug the male end of the cable into the ISX 5312/5314. Plug the female end into the crossover cable part no. 5956-744E (26-pin micro male to 34-pin male) connected to the BRI 2000.

  • Page 38: Connecting To Nmi Port For Ppp/Slip Network Management

    When connecting to a CMS 802X, use the cable supplied with the CMS 802X. Since the ISX 5312/5314 and the CMS 802X are both DCEs, this cable includes the required crossover. Table 2-4 lists the pin and signal assignments for the PPP/SLIP connector.
  • Page 39 Common ground. Not Used — — To establish a serial SNMP connection between the ISX 5312/5314 and an INX-NTS, follow these steps: 1. From the ISX 5312/5314’s front panel, press the buttons beneath . Then press the button beneath . Press the Local/Confg/DSU/NMS/Prtcl Escape button to return to the NMS Configuration submenu.
  • Page 40 Remote - same address as the ISX 5312/5314 IP Subnet Mask 255.255.255.255 To establish a serial SNMP connection between the ISX 5312/5314 and CMS 802X, follow these steps: 1. From the ISX 5312/5314’s front panel, press the buttons beneath . Then press the button beneath .

  • Page 41: Connecting To Nmi Port For Front Panel Controller Or Console Port Applications

    • Cable Part No. 5956-173T - 10-pin plug to 25-pin female connector Plug the 10-pin plug into the connector labeled NMI on the ISX 5312/5314’s rear panel and plug the other end into a serial port on the PC or terminal. Cable diagrams are provided in Appendix B.

  • Page 42: Connecting To A Dial Modem

    Appendix B. Connecting to an External Alarm Device (Central Site Model Only) The central site Excalibur ISX 5314 has a connector, labeled Relay, that enables you to connect to an external alarm indication device. Two relay contacts are provided. The relay contacts are activated through commands received from the CMS 400 network management system.

  • Page 43: Dmm Connector (Central Site Model Only)

    Relay 2 Normally Open DMM Connector (Central Site Model Only) The central site Excalibur ISX 5314 has a connector, labeled DMM, that enables you to daisy-chain the CMS system diagnostic channel. Use Cable Part No. 5956-158V to connect the DMM connector on the first unit to the NMI connector on the next unit.

  • Page 44: Verifying The Ethernet Link Connection

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Verifying the Ethernet Link Connection You can verify the Ethernet link connection by checking the status of the green LED indicator located on the rear panel’s 10B-T connector, as shown in Figure 2-6. After power-up initialization, the Ethernet controller continuously performs a Link Test.

  • Page 45: Chapter 3 - Using The Front Panel

    It describes the functions of all buttons, the screen, and LED indicators. It shows what you will see when you first plug in the ISX 5312/5314 and explains how to move through the menus to enter commands. It contains instructions for entering T7 and IP addresses, establishing password protection, and establishing the user identifier and password required for access from Telnet.

  • Page 46: What You Will See First

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation What You Will See First When you plug in the ISX 5312/5314, the screen displays the Top Level menu. (See Figure 3-2.) A reverse-video (for top) appears in the upper left corner of the screen.

  • Page 47: Alarm Display

    Figure 3-3. Alarm Display Entering the T7 Address For the T7 management feature to operate, each Excalibur ISX 5312/5314 in the network must be assigned a unique T7 address. The address can be any 3-digit number between 001 and 255.
  • Page 48 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the button beneath E scape I S X 5 3 1 4 A d d r e s s I P A d r S N M P < >...

  • Page 49: Entering Ip Addresses

    For the SNMP management feature to operate, the ISX 5312/5314 must be assigned an IP address, a Gateway address, and a Subnet Mask. The ISX 5312/5314 also allows you to direct traps to one SNMP manager and view the port numbers used by this manager’s UDP service source port and destination port.
  • Page 50 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 3. Press the button beneath Addr E scape I S X 5 3 1 4 I P A d d r e s s A d d r G a t e W M a s k <...

  • Page 51: Entering The Gateway Address

    Subnet Mask. The Subnet Mask determines whether the destination is on the same subnet as the ISX 5312/5314. If it is on a different subnet, the packets are routed through the Gateway. The ISX 5312/5314’s default Gateway address is .

  • Page 52: Establishing Password Protection

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Establishing Password Protection The Excalibur ISX 5312/5314 allows you to establish password protection over one or both of the following front panel functions: configuration and diagnostic testing. When a function is locked, the operator must enter the correct password to unlock it. This feature prevents unauthorized operators from changing the ISX 5312/5314's configuration and from executing test functions.
  • Page 53 5. The screen prompts you to enter the security code. When the Excalibur ISX 5312/5314 is shipped from the factory, the predefined security code is CSU. The cursor is located under the leftmost digit of the 3-digit field. To increase the digit, press the 1 button;...

  • Page 54: Changing The Password

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 7. Press the Escape button to return to the ISX 5312/5314 Security submenu. Changing the Password To change the password, follow these steps, starting from the ISX 5312/5314 Security submenu: Note: It is recommended that you change the password before locking front panel functions.

  • Page 55: Establishing The Telnet Logon Sequence

    Using the Front Panel 4. When the Excalibur ISX 5312/5314 is shipped from the factory, the predefined security code is CSU. Enter the predefined code in the same manner as described in Step 2. When the correct code is displayed, press the 4 button. If an incorrect code is entered, the bottom line of the screen displays the message: .

  • Page 56: Entering The Telnet Security Submenu

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Entering the Telnet Security Submenu Before you can enter the user identifier and password, you must first enter the Telnet Security submenu. To do so, follow these steps, starting from the Top Level menu: 1.

  • Page 57: Entering The User Identifier

    Using the Front Panel 4. The screen prompts you to enter the security code. When the ISX 5312/5314 is shipped from the factory, the predefined security code is CSU. Enter the predefined code unless you changed it under the Code parameter. If you changed it, enter the current code.
  • Page 58 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 1. Press the button beneath UsrId. Escape T e l n e t S e c u r i t y U s r I d P a s s w S e s T O <...
  • Page 59 Using the Front Panel 4. Press the 4 button. You can now insert a character by pressing the 1 button, delete a character by pressing the 2 button, or delete a character and move the cursor one space to the left by pressing the 3 button. When finished, press the 4 button two times.

  • Page 60: Entering The User Password

    Telnet session can remain inactive before it is automatically terminated by the ISX 5312/5314. The factory-default setting is five minutes. This option is disabled when set to 00, meaning the ISX 5312/5314 will never time-out a Telnet session. To set the Session Timeout parameter, follow these steps, starting from the Telnet Security submenu: 1.

  • Page 61: Using Console Port Interface

    To enable the console port interface, do one of the following: • If you have a standalone model ISX 5312/5314 or a central site model ISX 5314 housed in an Excalibur Card Carrier, set the Protocol parameter to Console. See “Network Management System”...

  • Page 62: Logging In

    Note: The 14.4 and 28.8 Kbps speeds are supported only by the Autobaud feature. The Autobaud feature is disabled when the Protocol parameter is changed from Console to another protocol (T7, SLIP, PPP, or Ethernet). The ISX 5312/5314 reverts to the 19.2 Kbps default baud rate.

  • Page 63: Terminal Key Functions

    Using the Front Panel Figure 3-4. Typical Terminal Display Screen Terminal Key Functions The terminal key functions are equivalent to the ISX 5312/5314’s front panel buttons. To select an option, simply type its corresponding number ( ) from the option display.

  • Page 64: Logging Off

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Table 3-1. Terminal Key Functions Function Returns the display to the Top Level menu. (Top) Returns the display to the previous menu. (ESC) Displays additional options when the screen displays a flashing (Right right arrow in the lower right corner.

  • Page 65: Chapter 4 - Defining Operating Parameters

    The remainder of the chapter describes the parameters in detail to help you decide which settings are correct for your application. This chapter also lists the different types of alarms the ISX 5312/5314 can report and explains how to enable or disable each alarm.
  • Page 66 ISX 5312/5314 and the amount of time that a Red alarm condition is no longer active before the ISX 5312/5314 reports it cleared.

  • Page 67: Defining Individual Parameters

    Defining Operating Parameters • (New Software) - allows you to download the ISX 5312/5314’s software NewSw from your PC console. Do NOT enter this submenu when using the ISX Download Program DL5300.exe. Note: In the Configuration Mode menus, alarms are not displayed on the screen. If the front panel beeper is enabled for alarms, it beeps a long beep to notify you that an alarm has been reported.
  • Page 68 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 3. To change the current setting, press the button beneath the desired setting. The top line of the screen then displays the revised setting. The revised setting takes effect immediately after it is selected, except for screens displaying the word on the bottom line.

  • Page 69: Dsu Parameters

    D t 3 = y > The remainder of this chapter discusses the parameters contained within each of the parameter submenus. DSU Parameters The DSU submenu provides the basic ISX 5312/5314 parameters. This submenu contains the following parameters: • - Location Locat •...

  • Page 70: Location

    The Transmit Clock parameters allow you to specify the source of timing signals for the ISX 5312/5314's Transmit Clock. This parameter also defines the source of clock used to derive all other clocks generated by the ISX 5312/5314. To do so, follow these steps, starting from the Configuration Mode submenu: 1.
  • Page 71 5. Press the Escape button to return to the Configure Clock submenu. The ISX 5312/5314 allows you to select the priority order of applicable fallback clocks that can be used in the event the primary Transmit Clock fails. This parameter can also be used to change the source of timing for the primary (order 0) clock.
  • Page 72 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. The screen displays the current source of timing for the primary Transmit Clock. E scape T x c l k O r d e r = D T E 1 I n c...

  • Page 73: System Clock

    Defining Operating Parameters 5. Press the button beneath to select the first fallback clock. The screen displays the current source of timing for the first fallback clock. E scape T x c l k O r d e r = I n t I n c D e c A c c...

  • Page 74: Beeper

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. The screen displays the date and time with the cursor located under the leftmost digit. To increase the digit, press the 1 button; to decrease it, press the 2 button. To copy a character into the next space, press the 3 button.

  • Page 75: Alarm Led

    D S b = n Network Loop Enable When the Network Loop Enable parameter is enabled, the ISX 5312/5314 honors Payload Loopback and Line Loopback requests from the network. When disabled, network loopback requests are not honored. This parameter is set independently for each T-1 line.

  • Page 76: Clock Tolerance

    The higher-priority clock source must be selected manually from the T7 or SNMP manager’s console or from the ISX 5312/5314's front panel. (Refer to "Transmit Clock" previously described in this chapter for instructions.)
  • Page 77 Both the primary and protection lines are monitored and the required statistics are accumulated. The ISX 5312/5314 also allows you to initiate a switch to the protection line on loss of signal (LOS). This option is an extension of Technical Reference 54017A1.
  • Page 78 . Press any button to restore the display back to the current menu selection. When the APC feature is enabled, the ISX 5312/5314 will not allow you to change the Frame parameter on the DS1a and DS1b lines. It also will not allow you to change the channel connection, signaling, or daisy-chain parameters on the DS1b line.
  • Page 79 Defining Operating Parameters 2. Press the button beneath . The top line of the screen displays the revised Enabl setting. I n h i b i t S w t c h = D s a b l E sca pe T o p D s a b l E n a b l...
  • Page 80 3. Press the Escape button two times to return to the Configure APC submenu. If you select the Force A or Force B option, the ISX 5312/5314’s Test LED lights to indicate that a test is in progress. To terminate the test and turn off the LED, press the...
  • Page 81 Defining Operating Parameters 2. Press the button beneath . The top line of the screen displays the revised Enabl setting. R e v e r t i v e M o d e = D s a b l E sca pe T o p D s a b l E n a b l...

  • Page 82: Hot Spare

    These parameters appear only for units equipped with two T-1 line interfaces. Before you can enable the Hot Spare feature, the ISX 5312/5314 must be configured as follows: • DS1a is the primary line and DS1b is the spare line. Therefore, there must be no connections on DS1b.
  • Page 83 Invalid configuration the display back to the current menu selection. When the Hot Spare feature is enabled, the ISX 5312/5314 does not allow you to change the channel connection, signaling, or daisy-chain parameters on the DS1b line. S p a r e F e a t u r e = D s a b l...
  • Page 84 3. Press the Escape button two times to return to the Configure Spare submenu. If you select the Force A or Force B option, the ISX 5312/5314’s Test LED lights to indicate that a test is in progress. To terminate the test and turn off the LED, press the...
  • Page 85 3. Press the Escape button to return to the Configure Spare submenu. The Alarm parameter allows you to specify the conditions (alarms generated on the DS1a line) under which the ISX 5312/5314 automatically switches from the primary line to the spare line.
  • Page 86 The Restoral Timer parameter allows you to specify the amount of time that the DS1 line can be in a good state before the ISX 5312/5314 switches back to the primary line from the spare line. The available options are , and seconds.

  • Page 87: Network Management System

    Network Management mode. See “Setting Switches” in Chapter 2 for more information. Before you can select SLIP, PPP, or Ethernet, the ISX 5312/5314 must be configured as follows: • The T7 Modem Type parameter must be set to None. If you attempt to enable...

  • Page 88: Speed

    4800, 9600 bps, and 14.4, 19.2, 28.8, 38.4, 57.6, 115.2 Kbps baud rates. The Autobaud feature is disabled when the Protocol parameter is changed from Console to another protocol (T7, SLIP, PPP, or Ethernet). The ISX 5312/5314 reverts to the 19.2 Kbps default baud rate.
  • Page 89 REMOTE ISX 5312/5314 ISX 5312/5314 CMS 400 PRIMARY COMMAND PAT PSTN MODEM MODEM Figure 4-2. Dial Modem Providing a Primary Command Data Path to a Remote ISX 5312/5314 PRIMARY COMMAND PAT NETORK PORT PORT CENTRAL REMOTE ISX 5312/5314 ISX 5312/5314...
  • Page 90 Mayday before it sends any other messages. This communication is defined as the ID Notification. • If the ISX 5312/5314 hangs up for any reason, the first message it sends over the T-1 line is an ID Notification, telling the CMS 400 to switch communication back to the T-1 line for that unit.
  • Page 91 Defining Operating Parameters When a remote ISX 5312/5314 has an alarm to report, the following events occur: 1. The ISX 5312/5314 does the normal processing for the T-1 line. 2. If the modem is connected to the CMS 400, the remote unit sends an alarm over the modem to the CMS 400.
  • Page 92 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation To control the Dial T7 feature, you must enter the NMS Configuration submenu. To do so, follow these steps, starting from the Top Level menu: 1. Press the button beneath Local Escape...
  • Page 93 Defining Operating Parameters 5. Press the button beneath E scape I S X 5 3 1 4 C o n f i g D S U < C l k T L T L L i m N M S S g B s y >...
  • Page 94 • Specify the conditions under which the remote ISX 5312/5314 automatically dials the CMS 400. • Specify the number of times the ISX 5312/5314 redials a call if the previous attempt is unsuccessful. • Specify the conditions under which the remote ISX 5312/5314 automatically disconnects a call.
  • Page 95 Defining Operating Parameters Table 4-1. Generic Modem Parameters Modem Parameter Value Results Codes Required 0, 1, 2, 3, 4, 5, 7, 8, (10). Do not use 6. Data Carrier Detect (DCD) Follows true carrier. Data Terminal Ready (DTR) Forced On. Signal Asynchronous Operation Enabled.
  • Page 96 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation To add characters to the predefined setup string, follow these steps, starting from the T7 Modem Connect Configuration submenu: 1. Press the button beneath Setup E sca pe T o p T 7 M O D E M C o n n e c t C o n f g...
  • Page 97 The Dial Conditions parameters specify the Dial Condition Events (alarms generated on each T-1 line on the remote unit) under which the remote ISX 5312/5314 automatically dials the CMS 400. You can enable or disable each alarm independently for each T-1 line.
  • Page 98 Y e l = n R e d = n Retry Attempts The Retry parameter specifies the maximum number of times the ISX 5312/5314 automatically redials a call if the previous attempt is unsuccessful. The available options , and . When the maximum number of dial attempts fail, you must clear them before the unit will automatically dial again.
  • Page 99 . This parameter allows you to specify the MdTmr number of seconds, from 0 through 120, the ISX 5312/5314 waits when it places a call to the far-end modem for a response before it automatically disconnects the call. This time is in addition to a 10-second default time. Dialing time is included in the amount of time you select.
  • Page 100 5. Press the button beneath . This parameter allows you to select the number Remot of seconds a modem link initiated by the remote ISX 5312/5314 can remain inactive before the ISX 5312/5314 automatically disconnects the call. The options are (automatic disconnect disabled) through seconds.
  • Page 101 8. Press the button beneath . This parameter allows you to select the number of minutes a modem link initiated by the CMS 400 can remain inactive before the ISX 5312/5314 automatically disconnects the call. The options are (automatic disconnect disabled) through minutes.
  • Page 102 - The modem is being setup. This is the second step in Setting up the MODEM! getting a modem ready for communication. If this message stays on the screen for more than a couple of seconds, the ISX 5312/5314 is having trouble talking to the modem. •...
  • Page 103 Could not connect MODEM! Other MODEM did not ans. had a problem associated with an @ character in the telephone number. • - The ISX 5312/5314 and/or the Could not connect MODEM! Unknown problem. modem experienced a problem. Note: If an incorrect or bad cable is used, these messages may appear even when the configuration is correct.
  • Page 104 Modem Configuration submenu, or an incorrect setup string was entered for a generic modem. • - The ISX 5312/5314 tried to dial the modem, but the No dial string available. telephone number was empty. 4-40...

  • Page 105: Remote T7 Via A Ds0 Channel

    DTE ports) in conjunction with this feature with the following restrictions: • At a remote ISX 5312/5314, only one method of providing remote T7 should be enabled at a time because if one source goes down, all T7 to the unit is lost until that source becomes operable again.
  • Page 106 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 3. The screen displays the DS1a remote T7 channel assignment parameters with the cursor located under the leftmost digit. E sca pe T o p D S 1 a t o N o n e...

  • Page 107: Port Parameters

    The Ports submenu provides the configuration parameters and specifies the DS0 channel assignments for the individual ports DTE 1 and DTE 2 (ISX 5312) or DTE 1, DTE 2, DTE 3, and DTE 4 (ISX 5314). The parameters are identical for each DTE submenu.

  • Page 108: Ds0

    Dsabl Enabl The local ISX 5312 can access up to two remote sites as shown in Figure 4-5. The local ISX 5314 can access up to four remote sites. You can also transport T7 data via dial modems and a PSTN line and/or via a DS0 channel as previously described in the “T7 Via Dial Modems”...

  • Page 109: Connection

    REMOTE ISX 5312 CMS T7 CMS 400 Figure 4-5. ISX 5312 with Remote T7 Channel Enabled Connection The Connection parameters specify the DTE's DS0 channel assignments. To define the DS0 channel assignments, follow these steps, starting from the Configuration Mode...
  • Page 110 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the button beneath DTE1 E scape I S X 5 3 1 4 C o n f i g P o r t D T E 1 D T E 2...
  • Page 111 Defining Operating Parameters The top line of the display shows, from left to right, two fields, that indicate the following: • (first field) - indicates the DS1a DS0 channel number to be assigned. The available options are through • (second field) - indicates the DTE to which you are assigning the None DS1a DS0 channel number.
  • Page 112 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 9. The screen displays a message asking you if you would like to accept the changes. You must press the button beneath to enter the changes into memory. If the changes are accepted, the bottom line of the screen displays the message: .
  • Page 113 Defining Operating Parameters 11. To increase the first digit, press the 1 button; to decrease it, press the 2 button. Press the < and > buttons to move from space to space. E sca pe T o p D S 1 a 1 - 0 1 t o N o n e I n c...

  • Page 114: Rts Control

    . When Const Constant is selected, the ISX 5312/5314 ignores the RTS signal from the DTE and holds it constant. The CTS signal is also held constant. When DTE is selected, the RTS signal is controlled by the DTE, and the CTS signal level is the same as RTS. If RTS is not provided on the EIA interface, this parameter must be set to Constant.

  • Page 115: Dsr Control

    Clock capability and is operating at circuit speeds above 512 Kbps. Note: When dial backup operation is initiated, the ISX 5312/5314 automatically switches its clock source to external on DTE 2 (ISX 5312) or DTE 2 and DTE 4 (ISX 5314).

  • Page 116: T7 Mode

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation T7 Mode This T7 Mode parameter specifies the mode used to transport T7 data when the remote unit's T7 channel is enabled. Two options are available: • (N x 8 Kbps) - This option is valid only when Clear Channel 64 Kbps Nx8K services are used and the Rate parameter in the Ports submenu is set for N x 56.

  • Page 117: Ring Signal Indicator

    The APC feature can be enabled only when the Frame parameter is set to . When the APC feature is enabled, the ISX 5312/5314 will not allow you to change this parameter’s setting on the DS1a and DS1b lines. In these instances, instead of...

  • Page 118: Line Build-Out

    To define the line channel assignments, follow these steps, starting from the Configuration Mode submenu: Note: When the APC or Hot Spare feature is enabled, the ISX 5312/5314 will not allow you to change the channel assignment or signal allocation parameter settings on the DS1b line.
  • Page 119 Defining Operating Parameters 3. Press the button beneath . Single or contiguous channel assignments can be Conn defined. To define single channel assignments, follow Steps 4 - 6. To define contiguous channel assignments, skip to Step 7. E scape D S U D S 1 a C o n f i g C h a n l C o n n S i g n l <...
  • Page 120 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 5. To increase the first digit, press the 1 button; to decrease it, press the 2 button. Press the < and > buttons to move from space to space. E scape D S 1 a...
  • Page 121 Defining Operating Parameters • (third field) - indicates the T-1 line to which you are assigning the DS1b DS1a DS0 channel number. The available options are DS1a DS1b None . The DS1b option is not available when the APC or Hot Spare feature is enabled.
  • Page 122 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation To define the channel signaling mode, follow these steps: 1. Press the button beneath . To define the signaling mode for a single Signl channel, follow Steps 2 and 3. To define the signaling mode for a range of channels, skip to Step 4.

  • Page 123: Alias

    Defining Operating Parameters 4. The screen displays the channel signaling mode parameters with the cursor located under the leftmost digit. The option indicates range. To set a range of channels, you must have displayed on the bottom line. If displayed, press the 3 button to change the setting and display the signaling mode parameters for a range of channels.
  • Page 124 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Note: When the APC or Hot Spare feature is enabled, the ISX 5312/5314 does not allow you to change the daisy-chain parameter setting on the DS1b line. When a DS1 is selected as a daisy-chain master, alarm conditions on the master are processed internally and passed on to the daisy-chained slave.
  • Page 125 Figure 4-8 provides an example combined daisy-chained and cross-connected configuration. In this example, the ISX 5312/5314s are in a daisy-chained configuration in the 1 to 2 direction and in a cross-connected configuration in the 2 to 1 direction. If Network 1 fails, Unit B receives a Red alarm condition from Network 1.

  • Page 126: Alarms

    ISX 5312/5314, and the amount of time a Red alarm condition is no longer active before the ISX 5312/5314 reports it cleared. You can configure the ISX 5312/5314 to sound a beeper and/or light the User LED when an alarm is reported.

  • Page 127: Red Alarm

    1-20 seconds. When the ISX 5312/5314 declares a Red alarm, it transmits a Yellow alarm to the far end via the outgoing bit stream. The Yellow alarm is transmitted continuously until the Red alarm condition no longer exists.

  • Page 128: Es Alarm

    LOS Alarm When the ISX 5312/5314 detects a loss of signal, it generates a LOS alarm and transmits a Blue alarm, provided a Yellow alarm is not already being transmitted, to the far end via the outgoing bit stream.

  • Page 129: Clock Tolerance Failed Alarm

    Hot Spare Switch Alarm The ISX 5312/5314 generates a Hot Spare Switch alarm when a hot spare switch from the primary line to the spare line occurs. The alarm is cleared when the service is switched back to the primary line.

  • Page 130: Network Loops

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Network Loops The Line Loopback and Payload Loopback are loops initiated by the network. The ISX 5312/5314 generates an alarm when a loop is initiated or cleared by the network. The methods of starting and stopping the loopback conditions, defined in AT&T 54016 and ANSI T1.403, are:...
  • Page 131 Defining Operating Parameters 3. Press the > button. E scape I S X 5 3 1 4 C o n f i g M o d e D S U P o r t s D S 1 a D S 1 b > <...
  • Page 132 Press any button to restore the display back to the Configure DSU Alarms submenu. Notes: When the ISX 5312/5314 is managed via T7, once the unit sends an alarm to the CMS 400 network management system, further reporting of the alarm condition is inhibited even if the alarm condition clears and is redeclared.

  • Page 133: T-1 Line Alarm Parameters

    A and B. You can also specify the amount of time that an alarm condition is active before it is reported by the ISX 5312/5314, and the amount of time that a Red alarm condition is no longer active before the ISX 5312/5314 reports it cleared. If your unit is equipped with one T-1 line interface, the submenu does not appear on the screen.
  • Page 134 The Interval Time parameter allows you to specify the amount of time, from 100 to 12,000 milliseconds (12 seconds) in 100-millisecond intervals, that an alarm condition can be active before it is reported by the ISX 5312/5314. To set the Interval Time parameter, follow these steps: 1.
  • Page 135 The Clear Time parameter allows you to specify the amount of time, from 1 to 20 seconds, that a Red alarm condition is no longer active before the ISX 5312/5314 reports it cleared. To set the Clear Time parameter, follow these steps: 1.
  • Page 136 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the button beneath E scape D S 1 a C l e a r D e l a y R e d < > 3. The screen displays a 2-digit field in the top line with a cursor under the leftmost digit.

  • Page 137: Factory Submenu

    Defining Operating Parameters Notes: When the ISX 5312/5314 is managed via T7, once the unit sends an alarm to the CMS 400 network management system, further reporting of the alarm condition is inhibited even if the alarm condition clears and is redeclared. A Return to Normal (RTN) function must be performed from the front panel or from the CMS 400 system console to rearm the alarm.

  • Page 138: Reset Submenu

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the button beneath Ustrp E scape I S X 5 3 1 4 C o n f i g M o d e < D S 1 b A l a r m F c t r y U s t r p >...

  • Page 139: New Software Submenu

    QMODEM Notes: As long as the unit is not reset during this operation, data continues to flow through the ISX 5312/5314. However, no other operation can be performed. Do NOT select this option when using the ISX Download Program DL5300.exe.
  • Page 140 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 6. The baud rate is now changed on the . Change the baud rate on your ISX 5314 PC in the usual manner. Then type at the prompt to P [ENTER] ISX 5314>...

  • Page 141: Chapter 5 - Online Operation

    External Dial Backup feature. Entering the Status Menu To monitor the ISX 5312/5314's operating status, you must enter the Status menu. To do so, follow these steps, starting from the Top Level Menu: 1. Press the button beneath...
  • Page 142 • - provides the current operating status for the individual ports DTE 1 and Ports DTE 2 (ISX 5312) or DTE 1, DTE 2, DTE 3, and DTE 4 (ISX 5314). The parameters are identical for each DTE submenu. •...

  • Page 143: Dsu Status

    Online Operation DSU Status The DSU Status submenu allows you to monitor the current operating status of the basic ISX 5312/5314. To do so, follow these steps, starting from the Status submenu: 1. Press the button beneath E scape I S X 5 3 1 4 S t a t u s M o d e...
  • Page 144 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 3. Press the button beneath . The screen displays the ISX 5312/5314's current Ports DTE configuration state. is displayed when the DTE is operational. Down displayed when it is not. E scape...
  • Page 145 Online Operation 5. Press the button beneath . The screen displays whether all front panel Secur configuration ( ) functions and front panel diagnostic testing ( Config Tests functions are locked ( ) or unlocked ( E scape I S X 5 3 1 4 S t a t u s S t a t e P o r t s T i m e...
  • Page 146 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 8. Press the button beneath . The screen displays the actual transmit clock Freq frequency in Hz. E scape I S X 5 3 1 4 S t a t u s <...
  • Page 147 11. Press the button beneath . The screen indicates whether the ISX 5314 is Cage installed in an Excalibur Card Carrier or an ISX 5010 chassis. If the unit is installed in an Excalibur Card Carrier, the screen also displays the cage number (1-6).

  • Page 148: Nms Status

    The NMS Status submenu allows you to monitor the current operating status of the ISX 5312/5314’s T7 dial modem and allows you to view whether T7 is assigned to a DS0 channel on any DS1 line. To do so, follow these steps, starting from the DSU Status submenu: 1.
  • Page 149 - The modem is being set up. This is the second Setting up the MODEM. step in getting a modem ready for communication. If this message stays on the screen for more than a couple of seconds, the ISX 5312/5314 is having trouble talking to the modem. •...
  • Page 150 Modem Configuration submenu, or an incorrect setup string was entered for a generic modem. • - The ISX 5312/5314 tried to dial the modem, but No dial string available. the telephone number was empty. Press the Escape button to return to the T7 Modem Status submenu.
  • Page 151 Modem Configuration submenu, or an incorrect setup string was entered for a generic modem. • - The ISX 5312/5314 tried to dial the modem, but No dial string available. the telephone number was empty. Press the Escape button two times to return to the NMS Status submenu.

  • Page 152: Apc Status

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation APC Status The APC Status submenu allows you to monitor the current operating status of the APC feature. This submenu appears only for units equipped with two T-1 line interfaces. It also allows you to view, from separate 24-hour local and Telco registers, the number of times a service switch from the primary to the protection line has occurred and the number of seconds the service has been on the protection line.
  • Page 153 Online Operation 3. Press the button beneath . The screen displays the APC’s current operating State state. E scape I S X 5 3 1 4 A P C S t a t u s S t a t e O c c u r D u r a t T h r s h >...
  • Page 154 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 5. Press the button beneath , depending on which register you want to Local Telco view. The screen displays the number of times a line switch has occurred for the current 15 minute interval and for the last 24 hours. This information is reported to the T7 or SNMP manager for the current 15-minute interval and the past 24 hours in ninety-six 15-minute intervals.
  • Page 155 Online Operation Press the Escape button two times to return to the APC Status submenu. 8. Press the button beneath . The screen displays the current Telco Threshold Thrsh values for ES, SES, and the Line Availability Timer. E scape I S X 5 3 1 4 A P C S t a t u s S t a t e O c c u r...

  • Page 156: Hot Spare Status

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 11. If you want to reset the occurrence and duration statistics in the local register to zero, press the button beneath . Then press the button beneath . (The Reset statistics in the Telco register can only be reset by the Telco.)

  • Page 157: Port Status

    Port Status The Ports Status submenu allows you to monitor the current operating status of the individual ports DTE 1 and DTE 2 (ISX 5312) or DTE 1, DTE 2, DTE 3, and DTE 4 (ISX 5314). To monitor the current operating status of a DTE port, follow these steps, starting from the Status submenu: 1.
  • Page 158 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 3. Press the button beneath . The screen displays the current DTE data status. Data This display is updated every 500 milliseconds. E scape I S X 5 3 1 4 D T E 1 S t a t u s...
  • Page 159 Online Operation 5. Press the button beneath . The bottom line of the screen indicates that the State DTE port is assigned 10 DS0 channels in multiples of 56 Kbps, which equals a port rate of 560 Kbps. Possible displays are 01 through 24 DS0 channels assigned in multiples of 56 or 64 Kbps.

  • Page 160: T-1 Line Status

    (enabled) and (disabled). • - indicates which line the service is using. It also indicates whether the Stat ISX 5312/5314 dialed the backup device and was unsuccessful in establishing a connection. Possible displays are (DS1 line), (dial backup line), (manually forced to dial backup line), and...
  • Page 161 Online Operation 2. Press the button beneath . The screen displays the status of the 8 data bits received from the DS1a line on DS0 channels . This display is updated every 500 milliseconds. Press the > button to scroll through the rest of the DS0 channels ( through Note: This is not a real-time display, but only an indicator of existing activity.
  • Page 162 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 4. Press the button beneath . The screen displays the current number of Chanl active ( 1 through ) and unused ( through ) DS0 channels on the DS1a line. The total number of active and unused DS0 channels always equals 24.
  • Page 163 Online Operation Press the Escape button to return to the DS1a Status submenu. 6. Press the > button. E scape I S X 5 3 1 4 D S 1 a S t a t u s R x D S i g n l C h a n l C o n n >...
  • Page 164 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 8. Press the button beneath . The screen displays the percentage of time the Avail DS1a line has been up for the current 15-minute interval and for the last 24 hours. This information is reported to the T7 or SNMP manager together with the error statistics (described in the "Local and Telco Registers"...

  • Page 165: Error Statistics

    UAS statistics (described in Step 8 on page 5-23) for the current 15-minute interval and for the past 24 hours in ninety-six 15-minute intervals. Table 5-1 defines each statistic reported by the ISX 5312/5314 as specified in AT&T Technical Reference No. 54016, Requirements for Interfacing Digital Terminal Equipment to Services Employing the Extended Superframe Format, Sections 3.2 and...
  • Page 166 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Table 5-1. ISX 5312/5314 Error Statistics Statistic Definition CRC-6 Error Event A CRC-6 error event occurs when the CRC-6 field calculated by the ISX 5312/5314, based on the incoming DS1 signal, does not agree with the DS1 signal received from the network.

  • Page 167: Network Receive Register

    A BPV is the occurrence of two consecutive pulses of (BPV) the same polarity. * Statistics provided by the ISX 5312/5314 that are not required by any technical specification. Network Receive Register The Network Receive register contains statistics derived from the incoming 1-second performance report generated by ANSI compatible units.

  • Page 168: Viewing Error Statistics

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation The error statistics are displayed on the control panel for the current 15-minute interval and the past 24 hours. When requested by the T7 or SNMP manager, the error statistics are reported for the current 15-minute interval and for the past 24 hours in ninety-six 15-minute intervals.
  • Page 169 Online Operation 4. Press the > button two times. E scape I S X 5 3 1 4 D S 1 a S t a t u s R x D S i g n l C h a n l C o n n >...
  • Page 170 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 7. Press the button beneath the error for which you want to view the statistics. (To select BPV, FBE, or COFA, you must first press the > button. Press the > button again to select SES or BES.) The screen then displays the number of times the...

  • Page 171: Alarm Status

    Online Operation Alarm Status The Alarm Status submenu allows you to view stored alarms separately for the DSU and each T-1 line. It also allows you to view a log of combined DSU and T-1 line alarms. To view these alarms, follow these steps, starting from the Status submenu: 1.
  • Page 172 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation For each alarm, a time is displayed. If an asterisk ( ) appears following the time, the alarm is currently active and the time displayed indicates the time the alarm occurred. If an asterisk ( ) does not appear, the alarm is inactive and the time displayed indicates the time the alarm was cleared.
  • Page 173 Online Operation The other possible DS1a alarm displays are: • Blue Alarm • Yellow Alarm • Controll Slip • Errored Secs • Red Alarm • Bipolar Viol • Local Loop • Payload Loop Press the Escape button to return to the Alarm Status submenu. Step 5 applies only for units equipped with one T-1 interface.
  • Page 174 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation • DBU2 Failed • DBU4 Sw BkUP • DBU4 Sw Dedct • DBU4 Failed 6. Press the button beneath . If an alarm has occurred since the last alarm Hstry reset, the screen displays the alarm. If no alarms have occurred, the screen...

  • Page 175: Diagnostic Tests

    F u n c t i o n C o m p l e t e d Notes: When the ISX 5312/5314 is managed via T7, once the unit sends an alarm to the CMS 400 network management system, further reporting of the alarm condition is inhibited even if the alarm condition clears and is redeclared.
  • Page 176 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the button beneath Diag E scape I S X 5 3 1 4 S t a t u s M o d e < D S 1 b A l a r m D i a g <...
  • Page 177 Online Operation 5. Press the button beneath . The screen displays the last code sent to the PN127 remote unit requesting it to initiate or terminate a Remote Digital Loop Test. Possible displays are (code sent requesting the remote unit to initialize the test), (code sent requesting the remote unit to terminate the test), and Down...
  • Page 178 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 8. Press the button beneath appear on the screen only for Line Chan Bndle units equipped with two T-1 line interfaces.) The screen displays whether a loop test is in progress on the DS1a line.
  • Page 179 Press the Escape button to return to the DS1a Diagnostic Status submenu. 10. Press the button beneath . The ISX 5312/5314 performs bidirectional Bndle bundle loops. This means that all the DS0s assigned to both lines in a connection are looped. The screen displays whether DS1a has a bundle loop in progress with DS1b.

  • Page 180: Using External Dial Backup Feature

    To enable the External Dial Backup feature, you must enter the Backup Mode submenu. For the ISX 5312, DTE 1 is the dedicated port and DTE 2 is the dial backup port. For the ISX 5314, DTE 1 and DTE 3 are the dedicated ports and DTE 2 and DTE 4 are the respective dial backup ports.
  • Page 181 Online Operation To enter the Backup Mode submenu, follow these steps, starting from the Top Level menu: 1. Press the button beneath Local Escape E x c a l i b u r I S X 5 3 1 4 - S T 1 S A L o c a l A d d r R T N...
  • Page 182 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 5. Press the > button three times. E scape I S X 5 3 1 4 D T E 2 C o n f i g D S 0 R a t e R e m T 7 C o n n >...

  • Page 183: Configuring Operating Parameters

    Online Operation 9. Press the Escape button to return to the DTE 2 Backup submenu. When the External Dial Backup feature is enabled, the ISX 5312/5314 does not allow you to change any of the dedicated DTE 2 Configuration parameters.
  • Page 184 Trigger For T-1 environments, the Trigger parameter allows you to specify the conditions (alarms generated on the DS1 line) under which the ISX 5312/5314 initiates the automatic dial backup mode. For FT-1 environments, you can enable the Loss of Remote Communications (LRC) alarm, which is the condition under which the ISX 5312/5314 goes into dial backup mode.
  • Page 185 When enabled, the LRC alarm sets various parameters required for the central ISX 5312/5314 unit to send a heartbeat message, via a portion of the remote T7 bandwidth, to the remote ISX 5312/5314 unit(s). If the Remote T7 parameter is enabled, the user-selected mode (N x 8 Kbps, 8 Kbps, or DS0) is used to transport the heartbeat signal.
  • Page 186 The Disconnect Timer parameter allows you to specify the amount of time that the DS1 line can be in a good state before the ISX 5312/5314 automatically terminates the dial backup connection and returns communication to the DS1 line via DTE 1. This parameter is non-functional when the Connect Timer parameter is set to Auto-Answer or the Revert parameter is set to Disabled.

  • Page 187: Clock Source During Dial Backup

    When dial backup operation is initiated, the ISX 5312/5314 automatically switches its clock source to external on DTE 2 (ISX 5312) or DTE 2 and DTE 4 (ISX 5314). The external dial backup device(s) attached to DTE 2/DTE 4 must be able to supply clock to the ISX 5312/5314.

  • Page 188: Automatic Dial Backup Failures

    If the dial backup process fails after trying to establish a connection for 60 seconds, the ISX 5312/5314 sends a DBU Timeout alarm to the network management system. It then waits 30 seconds and retries the backup connection. This process continues until one of the following occurs: •...

  • Page 189: Initiating A Dial Backup Connection Manually

    Online Operation Initiating a Dial Backup Connection Manually To initiate a dial backup connection manually, follow these steps, starting from the DTE 2 Backup submenu: 1. Press the button beneath . If the DTE 2 Backup Mode parameter is Force disabled, the screen displays the message: .

  • Page 190: Dial Backup Mode Diagnostics

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Dial Backup Mode Diagnostics When the ISX 5312/5314 is operating over a dial backup connection, you can initiate the following tests: DTE Port Tests: Digital Loop and Test Pattern T-1 Line Tests: Line Loop and Test Pattern Chapter 6 describes these tests and explains how to initiate them.

  • Page 191: Chapter 6 - Troubleshooting

    When a malfunction occurs, you should do several checks before you begin using the ISX 5312/5314's built-in diagnostic tests: ❏ Visually inspect each ISX 5312/5314. Check that the ISX 5312/5314 is plugged in and that all cables are in good condition and connected securely.

  • Page 192: T-1 Line Pattern Test

    T-1 Line Pattern Test. Caution: Do not run this test on an ISX 5312/5314 that is configured to initiate a dial backup connection if it detects an LRC alarm. (See “Trigger” in Chapter 5.) If you do, the ISX 5312/5314 will initiate a dial backup connection, because the test pattern overwrites the LRC heartbeat message, causing an LRC alarm.

  • Page 193: Dte Pattern Test

    DS0 channels assigned to the selected DTE port. (See Figure 6-3.) The ISX 5312/5314 monitors for an incoming test pattern and reports any errors up to 999 maximum. Errors can be inserted and the error counter can be reset from the ISX 5312/5314's front panel.

  • Page 194: Digital Loop Test

    The Digital Loop Test isolates the local DTE from the rest of the network. During this test, the ISX 5312/5314 establishes one loop. It loops its transmit data input from the DTE to its receive data output to the DTE. RTS is looped as DCD. Marks are transmitted towards the network in the DS0s assigned to the DTE.

  • Page 195: Remote Pn127 Digital Loop Test

    RTN (Return to Normal) command and terminate the test. Local T7 commands are not affected. Caution: Do not run this test on an ISX 5312/5314 that is configured to initiate a dial backup connection if it detects an LRC alarm. (See “Trigger” in Chapter 5.) If you do, the ISX 5312/5314 will initiate a dial backup connection, because it cannot receive the LRC heartbeat message from the remote unit, causing an LRC alarm.

  • Page 196: Local Channel Loop

    Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Local Channel Loop The Local Channel Loop test loops user-selectable single or contiguous DS0 channels on the selected DS1 line towards the network. This test is bidirectional for channels that are cross-connected to another T-1 line. It is not bidirectional for channels assigned to a DTE.

  • Page 197: Payload Loopback

    Receiver Figure 6-8. Payload Loopback Activating the Tests To activate any of the ISX 5312/5314 tests, you must enter the Diagnostic Mode submenu. To do so, follow these steps, starting from the Top Level menu: 1. Press the button beneath...

  • Page 198: Dte Tests

    Digital Loop and Test Pattern only. The V.54 Digital Loop and PN127 Digital Loop are not available. If the ISX 5312/5314 has Dial Backup Mode enabled, but is not currently operating over a dial backup connection, all DTE tests are available. However, you should not run these tests on a DTE port (2/4) that is connected to an external dial backup device, since there are no connections to the DS1 line for these ports, preventing a data path to the far end.
  • Page 199 Troubleshooting 3. Press the 1 button to start the loop. The ISX 5312/5314 then activates the loop. E scape D T E 1 V 5 4 D L : O f f S t a r t C l e a r <...
  • Page 200 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 2. Press the 1 button to start the test. If you want to abort the test while it is in progress, press the 2 button. If you want to insert an error into the test pattern, press the 4 button.

  • Page 201: T-1 Line Tests

    Troubleshooting T-1 Line Tests The DS1a and DS1b submenus provide the parameters that allow you to activate Local Line Loop tests, Local Channel Loop tests, Bundle Loop tests, and Pattern Tests on T-1 lines A and B, respectively. The parameters are identical for both line submenus. Note: The Local Channel Loop and Bundle Loop are available only on units equipped with two T-1 line interfaces.
  • Page 202 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 4. Press the button beneath to loop all channels on the line. Start E scape D S 1 a L i n e L o o p : O f f S t a r t C l e a r <...
  • Page 203 Troubleshooting 2. The screen displays the DS1a channel loopback parameters with the cursor located under the leftmost digit. The option indicates range. To loop single channels, you must have displayed on the bottom line. If is displayed, press the 3 button to change the setting and display the single channel loopback parameters.
  • Page 204 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 5. To clear the loop, press the 1 or 2 button to change the parameter setting to Then press the button beneath E scape D S 1 a C h - L p : 1 1...
  • Page 205 Troubleshooting 7. To increase the first digit, press the 1 button; to decrease it, press the 2 button. Press the < and > buttons to move from space to space. When the desired channel numbers are displayed, press the > button to move to the third field. Press the 1 or 2 button to change the parameter setting to E scape D S 1 a C h - L p :...
  • Page 206 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 10. Press the Escape button to return to the DS1a Diagnostic submenu. The Bundle Loop test loops all the DS0 channels that are cross-connected between two T-1 lines. This test is available only for units equipped with two T-1 line interfaces. To activate this test, follow these steps: 1.

  • Page 207: Rtn Function

    > Testing Alarm Relays (Central Site Model Only) The central site Excalibur ISX 5314 transition board has a connector, labeled Relay, that enables you to connect to an external alarm indication device. Two relay contacts are provided. The relay contacts are activated through commands received from the CMS 400 network management system.
  • Page 208 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 1. From the Diagnostic Mode submenu, press the button beneath I S X 5 3 1 4 D i a g M o d e Escape < D T E 4 D S 1 a...

  • Page 209: Technical Specifications

    Appendix A Technical Specifications Dimensions Height 3.0 inches (7.6 cm) Width 8.0 inches (20.3 cm) Depth 12.0 inches (30.5 cm) Weight 3.5 pounds (1.58 kg) Line Rate 1.544 MHz + 50 Hz Network Interface Compatibility AT&T 62411, 54016, 54017A1 ANSI T1.403, and TR-NLP-000054 Format Super Frame (SF) or Extended Super Frame (ESF)
  • Page 210 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation DTE Interface Compatibility Two (ISX 5312) or four (ISX 5314) V.35 ports Data Rates N x 56 Kbps and N x 64 Kbps, where N = 1 to 24 Bundling Independently selectable, alternate, or contiguous...
  • Page 211 Power Supply Part No. 25C168-01 - 100-250 VAC, Standalone Model 47-63 Hz, 0.32 A input current Power Requirements - Central Refer to the Excalibur Card Carrier manual or ISX Site Model 5010 manual for details. Power Consumption 16.5 Watts maximum Power Dissipation 56.3 BTUs per hour...
  • Page 213 To Modem SGND 2 SGND SGND 9 RD 3 DCD 4 10-Pin 20 DTR Modular TD 8 Jack RTS 7 25-Pin Male 10-Pin 25-Pin Modular Male Jack Figure B-2. ISX 5312/5314 NMI Port to 25-Pin Modem Cable (Part No. 5956-182C) Diagram...
  • Page 214 Modular 9-Pin 10-Pin 9-Pin Jack Female Modular Female Jack Figure B-3. ISX 5312/5314 NMI Port to 9-Pin PC Console Cable (Part No. 5956-182B) Diagram To ISX 5312/5314 To Console Port 2 TxD 3 RxD 7 GND 8 DCD 10-Pin 10-Pin...
  • Page 215 To ISX 5312/5314 V.35 Cable Pin 1 FGND SGND 26-Pin Micro Male 34-Pin Female AA TCB ETCA W ETCB NN LT 26-Pin 34-Pin Micro Female Male Figure B-5. ISX 5312/5314 DTE Port to 34-Pin V.35 Cable (Part No. 5956-879R) Diagram...
  • Page 217 Appendix C Regulatory Information FCC Part 15: Radio/Television Interference This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 218 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation FCC Part 68: Requirements For End Users This equipment complies with Part 68 of the FCC regulations. On the back of the unit is an equipment label that contains, among other information, the FCC registration number (AP3USA- 20191-DE-N) and Ringer Equivalence Number (REN), which is N.A.
  • Page 219 Regulatory Information Industry Canada: Requirements for End Users Notice: Industry Canada identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee the equipment will operate to the user's satisfaction.
  • Page 220 Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation Caution: The alarm relay contacts are rated 2 Amps @ 30 Volts DC, 1 Amp @ 60 Volts DC, or 2 Amps @ 30 Volts AC. Connecting loads exceeding these ratings will...
  • Page 221 Index APC (Access Protection Capability) Access Protection Capability (see APC) description..........1-7, 4-12 Address selection parameters (see APC submenu) gateway............3-7 Status submenu ......... 5-12 IP..............3-5 unit configuration........4-13 local T7 ............3-3 APC submenu subnet mask ..........3-7 Inhibit (Inhbt) parameter......4-14 Alarm indication device ........
  • Page 222 Index Configuration menu Disconnect Timer..........5-46 defining parameters........4-3 DMM connector ..........2-15 entering............4-1 Downloading software submenus, defined........4-2 description ..........1-10 Connect Timer ..........5-46 instructions ..........4-75 Console port Drop-and-insert capability ........ 1-7 cables............2-13 DS0 channel assignments interface device .........1-13 defining DTE ..........4-45 selecting mode via front panel ....4-23 defining T-1 line ........
  • Page 223 Line loopback, network initiated (see Telco loops) LEDs, illustration ........2-16 Loop tests pin/signal assignments, listed ....2-14 activating bundle........6-16 Excalibur Card Carrier ....... 1-5, 2-4 activating channel ........6-12 External alarm device........2-14 activating DTE ..........6-8 External dial backup (see Dial backup) activating T-1 line ........
  • Page 224 ISX 5312/5314 internet service provider, modem state ..........5-9 illustration..........1-4 T7 DS0 channel assignment......5-11 ISX 5312/5314 with one network interface Monitoring T-1 line operating status and T7 management, illustration..... 1-3 channel ............5-22 ISX 5312/5314 with two network interfaces connection ..........5-22...
  • Page 225 Frame parameter ........4-53 Line Build-Out (LBO) parameter ..... 4-54 parameters, listed ........4-53 Rack mount kit ..........2-2 Signal (Signl) parameter ......4-58 Rear panel, ISX 5312 illustration...... 2-5 T-1 line connector Rear panel, ISX 5314 illustration...... 2-5 cables............2-8 Relay connector pin/signal assignments, listed .....
  • Page 226 Index T7 via dial modems (continued) selecting modem type........4-39 Status submenu ...........5-8 T7 via DTE ports description..........4-44 enabling remote unit’s T7 channel....4-44 selecting T7 mode ........4-52 Telco loops line loopback ..........6-6 payload loopback ........6-7 Telnet description..........1-11 entering Telnet Securing submenu....3-12 entering user identifier ......3-13 entering user password......3-16 Session Time-Out parameter.....3-16...
  • Page 227 FAX it to us at (954) 846-3244. We also welcome your comments via e-mail at address techdoc@milgo.com. Name of Manual/Document No./Date: Excalibur ISX 5312/5314 T-1 Multiplexer Installation and Operation 15D30A-1/B 1/98 Was the information in this manual presented in a logical order? Excellent...
  • Page 228 Tape Here FOLD Postage Stamp Necessary If Mailed In The United States BUSINESS REPL Y MAIL FIRST CLASS MAIL PERMIT NO. 8699, FT. LAUDERD ALE, FLORIDA Postage Will Be Paid By Addressee MILGO Solutions, Inc. Attn: Technical Writing, MS-D108 Post Office Box 407044 Fort Lauderdale, FL 33340-7044...

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