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Verilink PRISM 4051 Manual

Dds csu/dsu
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PRISM 4051
DDS
CSU/DSU
34-00253.2

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Summary of Contents for Verilink PRISM 4051

  • Page 1 PRISM 4051 CSU/DSU 34-00253.2...

  • Page 2: Copyright Notice

    Verilink has made reasonable efforts to verify that the information contained herein is accurate, but Verilink assumes no responsibility for its use or for any infringement of pat- ents or other rights of third parties that may result. The customer is solely responsible for verifying the suitability of Verilink’s products for its use.

  • Page 3: Canadian Emissions Requirements

    Warranty Verilink's product warranty covers repair or replacement of all equipment under normal use for a five-year period from date of shipment. Replacement products may be new or reconditioned. Any replaced or repaired product or part has a ninety (90) day warranty or the remainder of the initial warranty period, whichever is longer.

  • Page 4: Returning Products

    • FAX-On-Demand at (800) 957-5465 Returning Products A product must be assigned a Return Materials Authorization (RMA) number before it is sent to Verilink for repair. An RMA number is issued by Verilink Customer Service at (800) 926-0085. ext. 2282. Safety Precautions...

  • Page 5: Table Of Contents

    Table of Contents Copyright Notice ....... . ii NMS Port Rate ......9 Trademarks .
  • Page 6 Interface Start-up ......23 Management Parameters ....34 Menu Structure.

  • Page 7: General

    ENERAL Introduction The Verilink PRISM 4051 DDS CSU/DSU provides the ideal solution for remote DDS I and DDS II 4051 CSU/DSU branch access synchronous 56 and 64 kbps data STATUS applications. It is a modular, nest mounted DDS CSU/DSU and can be managed from a menu-driven VT100 or by SNMP/Telnet commands from a Verilink 8100A Site Controller.

  • Page 8: Features

    1: G HAPTER ENERAL Features • Mounts in a Verilink 1051 chassis • Offers a mid-range solution for remote-site installations • Provides DDS-I and DDS-II service • AT&T TR62310 compatible • 56 kbps (DDS I) and 64 kbps Clear Channel (DDS II) •...

  • Page 9: Mechanical

    Specifications Mechanical Housing: Verilink 1051 chassis Mounting: Rack mount Dimensions: 1.72 inches (4.37 cm) wide 6.8 inches (17.27 cm) high 10.5 inches (26.67 cm) deep Environmental Operating Temp: 32° to 122°F (0° to 50°C) −4° to 185°F (−20° to 85°C)

  • Page 10: Ordering

    HAPTER ENERAL Ordering Each 4051 unit (Table 1-1) is supplied with the PRISM 4051 reference manual and Numbers is equipped with V.35 data port (F-4051-01-111 is the default part number). Also provided is an 8-pin modular-to-receptacle 1051 shelf to DDS adapter (part number 9-1001-075-1).

  • Page 11: Installation

    • Reference manual with configuration guide Mounting The Verilink 4051 DDS CSU/DSU is a modular unit that plugs into a Verilink 1051 chassis which holds up to 12 units. The chassis can be installed in either a 19- or 23-inch rack using four screws.

  • Page 12: Unit Configuration

    2: I HAPTER NSTALLATION Unit The PRISM 4051 can be hardware configured by switches or software configured Configuration by using a terminal connection to the front panel supervisory access (SUPV) port. The terminal interface provides more capabilities than the configuration switches.

  • Page 13: Boot Mode

    Unit Configuration Boot Mode Switch S1-1 is used to determine Table 2-1 Boot Mode whether the unit configures itself from Mode S1-1 the DIP switches or from the saved Boot from the DIP switches Down configuration as shown in Table 2-1. If Boot from the saved configuration set to boot from the saved configuration, the switch settings are ignored.

  • Page 14: Dte Alarm

    2: I HAPTER NSTALLATION DTE Alarm Switch S1-8 is used to enable or disable Table 2-7 DTE Alarm the DTE alarm as shown in Table 2-7. DTE Alarm S1-8 The DTE alarm is generated when DTR Disable Down from the DTE is false. Enable Configuration Switch S2 (Figure 2-3) configures the antistream timer, V.54 loop, circuit...

  • Page 15: Supv Port Rate

    Unit Configuration SUPV Port Rate Positions S2-5 Table 2-12 SUPV Port Rate and 2-6 set the NMS Port Rate S2-5 S2-6 bit rate for the 19.2 kbps Down Down network 1.2 kbps Down management 2.4 kbps Down system as shown 9.6 kbps in Table 2-12.

  • Page 16: Management Connections

    The COA feature works through the supervisory mode only. NMS Port The PRISM 4051 is fully compatible with the Verilink 8100A Site Manager. The 8100A software system is used to manage small to large networks of Verilink network access products.

  • Page 17: Nms In And Nms Out

    Network Management Connections NMS IN and NMS OUT ports. The different connection methods are described in the following paragraphs. NMS IN and NMS OUT The two 6-pin modular connectors labeled NMS 8100A IN and NMS OUT on the 1051 rear panel may be used for connection to the 8100A Site Controller.

  • Page 18: Data Port Connections

    Data Port Both models of the Table 2-17 DTE RJ-48 Pinout Connections Verilink 1051 chassis Signal provide connection to the Data Out customer equipment. Each Data Out slot of the 1051-2 has a...

  • Page 19: Port Connections

    Data Port Connections Port Connections The PRISM 4051 is a nest-mount module that fits into the Verilink 1051 chassis, which provides the DDS Network and Data Port connections as shown in Figure 2-9 on page 15 and Figure 2-10 on page 15.

  • Page 20: Power Connection

    – Verilink supply fails, the other powers 1051 the entire chassis. An example Chassis using a Verilink 1041 power Figure 2-7 Wiring for Redundant Power Sources supply is shown in Figure 2-7. Single Power Using a single power source is...
  • Page 21 Power Connection 4051 4051 4051 4051 4051 4051 4051 4051 4051 4051 4051 4051 CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU CSU/DSU STATUS STATUS STATUS STATUS STATUS STATUS STATUS STATUS STATUS STATUS STATUS STATUS LOOP LOOP LOOP LOOP LOOP...
  • Page 22 2: I HAPTER NSTALLATION...

  • Page 23: Operation

    PERATION Introduction This chapter describes general operation of the Verilink PRISM 4051 front panel. The 4051 may be controlled 4051 CSU/DSU manually using the front panel and the circuit board STATUS configuration switches (configuration switches are discussed in section Unit Configuration on page 6).

  • Page 24: Test Controls And Indicators

    3: O HAPTER PERATION RTS: This green indicator lights when the request to send signal is active. DTR: This green indicator lights when the data terminal ready signal is active. Test Controls and Indicators Test Switch: This switch (FAR /LOC) is used for local testing. Refer to section Front Panel Testing in this chapter for more information.
  • Page 25 Front Panel Testing V.54 loops take place at the DTE data port Network interface and are activated upon receipt of in-band V.54 loop codes in the network receive Figure 3-2 Unidirectional V.54 Loop data stream. V.54 loops are either unidirectional (Figure 3-2) and bidirectional (Figure 3-3) Unidirectional loops return the DSU receive data to the DSU transmit data, and then to the DDS transmit data.

  • Page 26: Supervisory Port

    3: O HAPTER PERATION Supervisory Port This 8 -pin modular RS-232 jack provides direct terminal access for controlling the 4051 and gathering status and performance data. The supervisory port serves several functions. A terminal may be connected to this port for external software control. A modem may be connected for remote access. The port supports the call on alarm feature.

  • Page 27: Terminal Operation

    (Figure 4-1). Device Type and Revision The device type (such as PRISM 4051) and the revision control numbers are shown in the upper left corner. The first number is the hardware revision and the second number is the software revision. Information is displayed for the near end unit (connected directly to the terminal) on the top line, and for the far-end unit (connected to the network DDS interface) on the second line.

  • Page 28: Date/Time

    The top right corner of the terminal screen displays the current date and time. The setting of these functions is described in Utilities on page 37. Element ID Below the header (PRISM 4051), the Element ID is displayed. Refer to Management Parameters on page 34 for information on the Element ID. Menu Title The menu title (third line, center) denotes the general classification of functions currently accessible by the user (such as MAIN or PERFORMANCE).

  • Page 29: Software Configuration

    Software The terminal interface is a firmware application program embedded inside the Configuration PRISM 4051, which can be accessed through the SUPV port (see Network Management Connections on page 10) using a Telnet session. Interface Start-up Once a compatible terminal is properly connected to the unit, a terminal interface session is started by sending a break command to the unit (or by pressing Enter four times).

  • Page 30: Menu Structure

    4: T HAPTER ERMINAL PERATION Menu Structure The terminal interface opens with a main menu allowing Alarms four options: Alarms, Maintenance, Configuration, Maintenance and Utilities (Figure 4 -2). DDS Network MAIN Each menu screen allows Parameters MENU accessing the local or far-end Configuration menu screen.

  • Page 31: Netalarms

    Software Configuration NETAlarms These status lines Table 4-2 NET Alarm Indicators display the selected Alarm Description element’s current ------- No status is available network signal alarm None No alarm threshold has been exceeded, although errors state (Table 4-2). may exist which do not exceed thresholds. Alarms are ERRS The Errored Seconds, Severely Errored Seconds, or...

  • Page 32: Maintenance Screen

    4: T HAPTER ERMINAL PERATION Maintenance Screen The Element Maintenance screen (Figure 4-4) allows performing loop tests and/or BERT functions on the DDS circuit. This screen also allows activating and clearing loops and the BERT tester. BERT is performed by using on-board test facilities.

  • Page 33: Loop Mode

    Software Configuration Loop Mode Gives the user a choice of how the data is to be looped back: BIDIRECTIONAL or UNIDIRECTIONAL. The following loops can be activated on the 4051. This loop takes place at the Line Loop. DDS network interface. The loop is Network activated by the reversal of the Figure 4-5...

  • Page 34: Local Loop

    Activate Remote Access Pressing Enter on this field initiates communication with another PRISM 4051 DDS unit at the far end of the network link. To activate remote access, both the near-end and far-end units must be similarly configured for DDS I or DDS II.

  • Page 35: Bert

    Software Configuration Activating the remote access causes the unit to interrupt network traffic. Network traffic does not restart until remote access is deactivated. BERT These fields control the Bit Error Rate Test feature. BERT is performed on the NET interface and preempts user data. Test Length Defines the run -time of test pattern generation and error accumulation.

  • Page 36: Near Loops

    4: T HAPTER ERMINAL PERATION exceeded. Status indications are described in the NET and DTE Status fields. Status indications are described in Table 4-4. Table 4-4 Status Indications Status Description ------- No status is available No errors are currently detected. A loss of signal condition exists.

  • Page 37: Dds Network Parameters

    Software Configuration DDS Network Parameters The DDS Network Configuration screen (Figure 4-11) allows selecting parameters for the network interface. Choices are DDS I and DDS II which is a clear channel 64 kbps Data Mode. without secondary channel. This field is automatically set to 56K for DDS I and 64K (72K) for DDS II. Rate.

  • Page 38: Antistreaming Timer

    4: T HAPTER ERMINAL PERATION The Antistreaming Timer is controlled by RTS. If RTS Antistreaming Timer. remains On long enough for a timeout to occur, the DDS transmitter sends DMI [Data Mode Idle (all ones)]. The Antistreaming Timer is reset when RTS transitions to the Off state.

  • Page 39: Rts/Cts Delay

    This field controls the response to incoming V.54 Loop/Unloop codes. V54 Loop. If set to Enable, the PRISM 4051 can loop and unloop. If set to Disable, loop codes are ignored. This option allows Enabling or Disabling the local loop activation by LL Detect.

  • Page 40: Loss Of Signal Seconds

    4: T HAPTER ERMINAL PERATION acceptable performance levels. To modify the parameters, highlight the desired statistic, type in the new value (any number from 0 to 900) and press Enter. If this value is later surpassed, an alarm indication appears. A field set to (0) causes the element not to alarm on that statistic.

  • Page 41: Primary Dial String, Secondary Dial String35

    Software Configuration DIAL: Sends reports through an attached AT-command-set-compatible modem connected to the SUPV serial port, which must dial out to a remote modem. The message format is described in the Element ID field. DIRECT: Sends reports to a printer or terminal connected directly to the supervisory port.

  • Page 42: Summary

    4: T HAPTER ERMINAL PERATION Summary The Summary screen (Figure 4-15) is a display-only screen that summarizes all the configuration settings in multiple columns. The left column, labeled Current, shows the settings the unit is running. The middle column, labeled Saved, shows what settings have been saved into non-volatile memory.

  • Page 43: Utilities

    Software Configuration Utilities The Utilities screen (Figure 4 -16) handles the functions described in the following paragraphs. This field allows the entry of an ASCII string (up to 29 characters in Element ID. length) which identifies the unit to the device receiving the alarm notification messages.

  • Page 44: Maintenance Reset

    HAPTER ERMINAL PERATION If a password is programmed and later forgotten, contact Verilink Technical support for a one-time backdoor password. Store Parameters to EEPROM: This command causes the unit to store all user-selectable parameters into non-volatile memory. These settings then become the saved configuration which can be loaded at power-up.

  • Page 45: Procedure

    Copy all the files on the supplied diskette to the destination directory noting the complete file names of all hex files, such as 0020-214.hex. Select the download.exe file. The Verilink Flash Loader main screen is displayed (Figure A-1). Select 4051 at Device Type using the arrow keys to highlight the field and the spacebar to toggle through the list of available products.
  • Page 46 Exit ==================================== Messages ================================== igure A-1 Verilink Flash Loader Screen Select the baud rate for configuring the communication program. The valid choices for the 4051 are 19200, 38400, and 57600 (see Upgrading Software on page 20). The LOC position forces download at 19200 bps.
  • Page 47 PC Setup The Utilities option is used for saving and restoring the configuration parameters for the 8100A Site Controller. Select the Download option and press Enter for the download process to begin. The actual downloading procedure overwrites the existing program in Flash. Ensure that the appropriate file name is selected before pressing Enter on the Download option.
  • Page 48 A: F PROM D PPENDIX LASH OWNLOAD ROCEDURE...

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