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Cabletron Systems SmartSwitch SBU128 User Manual

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Fivemere Ltd.
Fivemere House
161 High Street
Aldershot
Hampshire, England
GU11 1TT
SBU128

User Manual

Cabletron Systems Ltd.
Network House
Newbury Business Park
London Road, Newbury
Berkshire, England
RG13 2PZ
Telephone: [44] (0)1635 580000
Fax:
[44] (0)1635 44578

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  • Page 1: User Manual

    SBU128 User Manual Fivemere Ltd. Fivemere House 161 High Street Aldershot Hampshire, England GU11 1TT Cabletron Systems Ltd. Network House Newbury Business Park London Road, Newbury Berkshire, England RG13 2PZ Telephone: [44] (0)1635 580000 Fax: [44] (0)1635 44578...
  • Page 2 SBU128 User Manual Publication — 80-10200000-01 Publication Notice: This manual has been compiled and checked for accuracy. However the information contained in this manual does not constitute a warranty of performance. Cabletron Systems Ltd. reserves the right to revise this publication from time to time without notice.
  • Page 3 SBU128 User Manual History Sheet 80-10200000-01 V1.00 Software 31 July 1998 80-10200000-01...

  • Page 4: Table Of Contents

    SBU128 User Manual TABLE OF CONTENTS THIS IS THE SBU128 NTRODUCTION EATURES RODUCT VERVIEW 1.3.1 ETWORK ECURITY 1.3.2 ELEPHONE UMBER 1.3.3 IRCUIT AILURE 1.3.4 POOFING 1.3.5 ALKWIRE 1.3.6 OLLING 1.3.7 LARMS THE HARDWARE NTRODUCTION DLC I NTERFACE HARACTERISTICS NTERFACE SSIGNMENTS 2.3.1 SER AND 2.3.2...
  • Page 5 3.2.1 OMMAND 3.2.2 USER LINK P ORTS 3.2.2.1 USER LINK P 3.2.3 ISDN 3.2.3.1 S (E ASIC AINS NPUT AND IRING UPPLY ATINGS CONFIGURATION COMMANDS NTRODUCTION ESCRIPTION EVEL PERATION MENU ONFIGURATION MENU 4.5.1 YSTEM 4.5.2 OMMAND 4.5.3 LARM 4.5.4 LARMS MENU 4.5.5 ORT MENU 4.5.6...
  • Page 6 SBU128 User Manual DLC T SING ALKWIRE FOR LOCAL M REMOTE M SING ALKWIRE URING A POLLED MANAGEMENT NTRODUCTION SBU128 P ONFIGURING THE ONFIGURING THE OLLED ONNECTING TO A PECIFIC SBU128 SPECIFICATION CABLE SPECIFICATIONS X.21 U SER AND ABLES 8.2 V.35 U ABLE 8.3 V.35 L ABLE...

  • Page 7: This Is The Sbu128

    This is the SBU128 1.1 Introduction The SmartSWITCH SBU128 Backup Unit provides an effective, easy to implement, automatic backup over the ISDN (Integrated Services Digital Network) for an X.21 or V.35 PTO Leased Digital Circuit (DLC). The ISDN Basic Rate Interface (BRI) is provided by a public switched...
  • Page 8 SBU128 User Manual User Equipment SBU128 Figure 1.1 SBU128 sits in the data path During normal operating conditions, user data passes over the DLC, with the SBU128 remaining transparent to the system. If a failure occurs on the DLC, this is detected by the SBU128. After a user defined elapsed time, the SBU128 dials a remote SmartSWITCH BACKUP unit via the ISDN line.

  • Page 9: Features

    Automatic fault detection on the DLC circuit. Fully automatic or manually initiated dialling and backup of the DLC. Local or remote control of the switch to the backup circuit. Fully automatic or manually initiated restoral to the main circuit. Automatic re-dial and alternate number dialling.

  • Page 10: Product Overview

    SBU128 User Manual 1.3 Product Overview This user manual is arranged to take you through the basics of the hardware, then to software set-up and on to the more specialised user definable software facilities of your SBU128. SBU128 software configuration is generally not a complex operation. In many applications once you have correctly configured the hardware and installed your SBU128s, the default software configuration settings will suffice to provide reliable backup operation.

  • Page 11: Spoofing

    1.3.4 Spoofing There are two occurrences with automatic backup technology which need to be provided for. The first is where a terminal or CPU stops transmitting idle data frames. In this instance the SBU128 would normally backup, which is undesirable. Enabling the SBU128 Transmit Spoof causes a line inversion to be sent once a second whenever no data is transmitted from the user DTE to the User port;...

  • Page 12: Alarms

    SBU128 User Manual 1.3.7 Alarms Various alarm conditions are available that alert the user to the SBU128 alarm status. You can also define which of these EVENTs you want to be output as an ALERT. The ALERT message is defined as being an alarm that is passed across a network of several Cabletron backup units.

  • Page 13: The Hardware

    2.1 Introduction All SBU128 configuration options are software controlled, and settings can easily be altered after the unit is installed in the system. However the physical interface characteristics of the USER and LINK ports are defined at manufacture by using separate pcb modules which are not changeable except at the premises of your equipment supplier and maintainer.

  • Page 14: User And

    SBU128 User Manual Area perigosa somente pessoal técnico treinado. Voltagens perigosas no interior. Farligt omräde endast för utbildad personal. Öppna ej. Farlig spanning inuti. Farligt omräde. Kun adgang for teknisk uddannet personale. Farlig spænding indeni. Luk ikke op. Vaarallinen alue Vaarallinen jännite.

  • Page 15: Interface Pin Assignments

    2.3 Interface Pin Assignments 2.3.1 User and Link Pin assignments of the USER and LINK connectors will vary with the interface module type. The USER ports are configured as physical DCEs and the LINK ports are configured as physical DTEs. Their pin assignments are: V35 operation Circuit 103(A)

  • Page 16: Command Port

    SBU128 User Manual See section 2.4.1 for details of Pin 1 connection to Protective Ground, factory default setting assumes no links fitted. X21 operation Circuit SHLD T(A) C(A) R(A) I(A) S(A) T(B) C(B) R(B) I(B) S(B) See section 2.4.2 for details of Pin 1 connection to Protective Ground, factory default setting assumes no links fitted.

  • Page 17: X21 And V35 Interface Links

    2.4 X21 and V35 Interface Links JP 1 connects Signal Ground (SG) to Protective Ground (PG) for the SBU128. All links are found on the interface pcb. 2.4.1 X21 USER/LINK Pin 1 Definition Pin 1 on the 15-way X21 USER and LINK connectors can be connected to Protective Ground (PG) using pcb links.

  • Page 18: Isdn

    SBU128 User Manual 2.4.5 ISDN The following links when fitted to the ISDN pcb, apply a 100 ohm termination to the ISDN transmit and receive pairs as follows:- Shorting Link These links may need to be inserted when a longer S-bus line length is used.

  • Page 19: S-Bus Power Detection

    All Non Volatile Options are set during manufacture and must not be changed, except by a competent engineer. Network Variant 0 is for most European networks, most other countries with Euro-ISDN are likely to require Network Variant 0. Variant 2 is the same as Variant 0 except that it does not have single octet information elements present in the call setup message.

  • Page 20: Front And Rear Panel Descriptions

    Front and Rear Panel Descriptions Front and Rear Panel Descriptions The SBU128 is a standalone unit designed to sit on a desktop, or a shelf in a standard communications cabinet. All physical connections are made by connectors on the rear panel, see Figure 3.1 Figure 3.2 below:-...

  • Page 21: T Alkwire And

    SBU128, which has the following:- signal LEDs for each of the User interface circuits a non-latching, push-button switch for manual backup operation. Talkwire and ALERT LEDs status LEDs for the ISDN channels a User port “Connected” LED a unit status and power LEDs.

  • Page 22: User Indicators

    3.1.1 USER Indicators The indicators for USER 1 reflect the signal activity on the X21 or V35 User connectors, depending which interface pcb is fitted. TxD/T Lights to indicate the state of Transmit Data as being ON (SPACE). RxD/R Lights to indicate the state of Receive Data as being ON (SPACE).

  • Page 23: Backup Button, Factory Default

    User Manual 3.1.2 BACKUP Button, Factory Default A non-latching switch is provided for manual backup and restoral. When pressed the SBU128 will attempt a backup call using the stored ISDN number(s). If pressed when a backup call is in progress, the SBU128 will restore the user onto the leased circuit, and release the ISDN call.

  • Page 24: Rear Panel

    3.1.4 ISDN Indicators These indicate the state of channels 1 and 2 on the ISDN and are:- Indicator LAYER 1 Alight when the ISDN at Layer 1 (physical layer) is active. When not alight when dialling indicates lack of connection to the ISDN. LAYER 2 Alight when the ISDN at Layer 2 (link layer, LAPD) is active.

  • Page 25: Rear Panel Description

    SBU128 User Manual 3.2 Rear Panel Description 3.2.1 Command Port A 25 pin female D-Type V24/V28 interface connector provides connection to your local terminal, PC, or modem for software configuration control. The port is configured as a physical DCE operating at a fixed rate (9600 bit/s, no parity, 8 data bits, 1 start and 1 or 2 stop bits.

  • Page 26: Basic Rates (Europe ) Interface

    Pin 1 Figure 3.3 RJ45 Connector showing pin connections The pin assignment on the RJ45 is with pin 1 on the left, with the plug pins facing you and the cable entry pointing downwards. 3.2.3.1 Basic Rate S (Europe) Interface When the SBU128 is supplied in countries other than the USA, the following pins are used in the RJ45 connector: RJ45...

  • Page 27: Mains Input And Wiring

    SBU128 User Manual 3.3 Mains Input and Wiring On the rear of the unit there is one IEC mains socket for connection to an independent mains supply. The primary earth connection is made via this socket. WARNING - this appliance must be earthed. VORSICHT - Nur eine vorschriftsmäßig geerdete Steckdose anschließen.

  • Page 28: Supply Ratings

    1. Only connect apparatus complying with the requirements of SELV in accordance with clause 2-3 of EN 60 950 to the ports on the rear panel of your unit marked “User, Link, 10 Base-T and Command”. An die Anschluesse “User, Link, 10BaseT, und Command” auf der Rueckseite des Geraetes duerfen nur Komponenten, die fuer SELV bestimmt sind und der Vorschrift EN 60950/2-3 genuegen, angeschlossen werden.
  • Page 29 SBU128 User Manual The maximum power consumption of the power supply unit is 30 watts. The current requirement for each of the voltage ranges is:- a) 0.5A max. b) 0.25A max. 3–10 80-10200000-01...

  • Page 30: Configuration Commands

    Configuration Commands 4.1 Introduction There are three ways you can gain access to, and alter the software configuration options on your SBU128; by direct VT100 terminal access (local connection to the COMMAND port of your SBU128) by Talkwire link (from a remote SmartSWITCH BACKUP unit placing a call to the SBU128, over the ISDN) by remote Telnet session over the LAN.

  • Page 31: Top Level Menu

    SBU128 User Manual SmartSWITCH BACKUP products. See menu structure. The following commands have a special meaning and are executed with single keystrokes:- Selects port 1. M Selects the Management port. Selects the Remote Alarm port. Displays the status information of the SBU128. Returns to the top level menu.

  • Page 32: Operation Menu

    4.4 Operation menu A) DIAL B) DIAL nnn C) DIAL Nn D) LIST ALL NUMBERS E) ANSWER F) HANGUP G) TALKWIRE H) LOCAL LOOPBACK 80-10200000-01 Configuration Commands Dials the first number in the number store. Prompts you for a number and then dials it.

  • Page 33: Configuration Menu

    SBU128 User Manual I) REMOTE LOOPBACK J) DISPLAY ALERT 4.5 Configuration menu The (F) in the text represents the factory default setting. Factory defaulting: The backup button is also used to factory default (returning configuration settings to default values) the SBU128 on power up, by holding it depressed for about 2 seconds until the Layer 1 LED illuminates.

  • Page 34: System Menu

    4.5.1 System Menu A) SYSTEM A) CHANGE MENU PASSWORD B) POLL NUMBER C) SET TIME D) SET DATE E) PASSWORD TIMER 4.5.2 Command Port Menu This sub-menu configures the speed of the command port. A) SPEED A) 1k2 B) 2k4 C) 4k8 D) 9k6 (F) E) 19k2...
  • Page 35 SBU128 User Manual C) CONSOLE A) NORMAL (F) B) POLLED D) FLOW A) RTS/CTS CONTROL B) XON/XOFF C) DISABLED (F) E) ALERTS A) SHORT FORMAT (F) B) LONG FORMAT C) DISABLED F) EVENTS A) ENABLED (F) B) DISABLED 4–6 Used when connected directed to the management console.

  • Page 36: Alarm Port Menu

    4.5.3 Alarm Port Menu *) SPEED *) ECHO C) MODE A) REMOTE A) LOW PRIORITY D) FLOW A) RTS/CTS (F) CONTROL B) XON/XOFF C) DISABLED E) ALERTS A) SHORT FORMAT B) LONG FORMAT C) DISABLED (F) No ALERTs presented. F) QUEUE LENGTH G) FLUSH TIMER H) CALL HOLD...

  • Page 37: Alarms Menu

    SBU128 User Manual 4.5.4 Alarms menu A) ALERT PASSWORD A) ENABLED (F) B) DISABLED B) ALERT CHANNEL STATUS A) ENABLED (F) B) DISABLED 4–8 Sends an alert indicating when whenever three successive incorrect attempts have been made to log in to the menu system:- ALERT Unauthorised access attempt...
  • Page 38 C) ALERT DIAL A) ENABLED (F) B) DISABLED D) ALERT INCOMING CALL A) ENABLED (F) B) DISABLED E) ALERT ISDN VERIFY A) ENABLED (F) B) DISABLED F) ALERT LINE ACTIVITY A) ENABLED (F) B) DISABLED 80-10200000-01 Configuration Commands Sends an alert indicating you are dialling a number.
  • Page 39 SBU128 User Manual G) ALERT BACKUP A) ENABLED (F) B) DISABLED H) ALERT LAPD ACTIVITY A) ENABLED (F) B) DISABLED I) ALERT INSUFFICIENT B-CHANNELS A) ENABLED (F) B) DISABLED 4–10 Sends Backup or Restore ALERTs. This ALERT is disabled. Sends an ALERT indicating whether ISDN LAPD (Link layer) is active or inactive.
  • Page 40 J) ALERT B-CHANNEL USAGE A) ENABLED (F) B) DISABLED K) ALERT SYSTEM A) ENABLED (F) B) DISABLED 80-10200000-01 Configuration Commands Sends an ALERT indicating how many ‘B’ channels are in use. The ALERT message is: ALERT B-Channel usage x,y Where x and y are numerals in the range 0 - 2 and :- x is the number of channels in use and y is the number of channels...

  • Page 41: User Port Menu

    SBU128 User Manual 4.5.5 User Port menu EDIT STORE allows the user to edit the configuration stores of the ports. Selection of a port leads you to a further selection of Menus, see section 4.5.6. Many sub-menus are not available (because they are not needed) for the Remote Management and Remote Alarm ports.

  • Page 42: Interface Menu

    4.5.6.1 Interface menu Interface signals DSR, CTS, RTS and LAL are only available with the V.35 interface. A) COMMAND Selects the type of call control for the user port. MODE A) DTR ORIGINATE B) DTR ANSWER C) BACKUP (F) B) DATA Selects data type for the user port.
  • Page 43 SBU128 User Manual B) PARITY C) STOP BITS C) SPEED Selects desired speed for the user port. A) 300 B) 600 C) 1K2 D) 2K4 E) 4K8 F) 9K6 G) 19K2 H) 38K4 I) 48K J) 56K K) 64K (F) L) SWITCHED 56K M) 128K 4–14...
  • Page 44 D) USER RATE A) DISABLED (F) NOTIFICATION B) ENABLED E) C/DTR Selects what the DTR or C input should be. A) NORMAL (F) B) FORCED ON C) FORCED OFF F) I/DCD Selects what the DCD or I output should be. A) NORMAL (F) B) FORCED ON C) FORCED OFF...
  • Page 45 SBU128 User Manual H) CTS Selects the required CTS output. A) NORMAL (F) B) FORCED ON C) FORCED OFF D) FOLLOWS DCD I) RTS Selects the required RTS input. A) NORMAL (F) B) FORCED ON C) FORCED OFF J) LAL Selects if the loop pin on the SBU128 is enabled (pin L on The V.35 interface) CONTROL...

  • Page 46: Call Control Menu

    4.5.6.2 Call control menu A) ANSWER Determines how the SBU128 responds to an incoming call. A) AUTO (F) B) CLID C) MANUAL D) CALL BACK With Call Back enabled, the Delay After Attempt in the Cyclic Dial menu must be set to at least 5 seconds at the calling unit, to allow for the call back to occur.
  • Page 47 SBU128 User Manual B) TALKWIRE Sets Talkwire and the user port connection method. A) T/W CONNECT (F) B) T/W & AUTO CONNECT C) AUTO CONNECT ENTER TALKWIRE C) TALKWIRE TIMEOUT VALUE: TIMER (1-999s, Default 5s) ENTER CONNECT D) CONNECT TIMEOUT VALUE: TIMER (0-999s, Default 0s)

  • Page 48: Leased Circuit Failures Menu

    4.5.6.3 Leased Circuit Failures menu Determines which criteria are used for determining DLC failure. A) DATA LOSS A) ENABLED B) DISABLED (F) C) DATA LOSS TIMER B) CLOCK LOSS A) ENABLED B) DISABLED (F) C) CLOCK LOSS TIMER C) I/DSR LOSS A) ENABLED B) DISABLED (F) C) I/DSR LOSS...

  • Page 49: Backup Menu

    SBU128 User Manual 4.5.6.4 Backup menu A) BACKUP DELAY TIMER B) LEASED A) ENABLED CIRCUIT B) DISABLED (F) C) C/DTR A) ENABLED B) DISABLED (F) D) TX A) ENABLED SPOOFING B) DISABLED (F) E) REMOTE A) ENABLED BACKUP SPOOFING B) DISABLED (F) 4–20 Time during which DLC loss must be continuously detected before...

  • Page 50: Restore Menu

    4.5.6.5 Restore menu A) RESTORE DELAY TIMER B) LEASED CIRCUIT A) DISABLED B) TALKWIRE (F) C) LOOP D) RXDATA E) L/CCT T/W TIMER C) C/DTR A) ENABLED B) DISABLED (F) 80-10200000-01 Configuration Commands Time during which DLC must be continuously detected as being available for use before automatic restoral is initiated.

  • Page 51: Time Windows Menu

    SBU128 User Manual 4.5.6.6 Time Windows menu A) MODE A) DISABLED (F) B) BACKUP C) BACKUP AND RESTORE B) DISPLAY WINDOWS C) SET WINDOW A) MONDAY* B) TUESDAY* C) WEDNESDAY* D) THURSDAY* E) FRIDAY* F) SATURDAY* G SUNDAY* *Any of these sections cause a further menu to be presented as follows:- Once the slot number has been selected you are prompted for the Window start and end times:- ‘Please enter the Start and End Times (hh:mm hh:mm):’...

  • Page 52: Isdntest Menu

    Default values are shown below (the same for all days):- Slot Slot 1 Slots 2, 3, & 4 These defaults ensure that the default Window operation occurs the same as for auto backup operation, until changes are made to the window times.

  • Page 53: Copy Store Menu

    SBU128 User Manual 4.5.6.8 Copy Store Menu B) COPY Allows the user to copy any of the configuration stores from one to another. STORE A) USER PORT *) REMOTE ALARM PORT *) REMOTE MANAGEMENT PORT D) STORE 1 E) STORE 2 F) DISPLAY INTERFACE STORES G) DISPLAY BACKUP STORES 4–24...

  • Page 54: Reset Store To Defaults Menu

    4.5.6.9 Reset Store to Defaults Menu C) RESET STORE TO DEFAULTS A) USER PORT *) REMOTE ALARM PORT *) REMOTE MANAGEMENT PORT D) STORE 1 E) STORE 2 F) DISPLAY INTERFACE STORES G) DISPLAY BACKUP STORES D) DISPLAY INTERFACE STORES E) DISPLAY BACKUP STORES 4.6 Number store menu A) MSN...
  • Page 55 SBU128 User Manual D) CLID A) STORE CLID NUMBER B) DELETE CLID NUMBER C) LIST CLID NUMBER D) LIST ALL CLID NUMBERS ‘B’-CHANNEL A) ‘B’-CHANNEL 1 ROUTING B) ‘B’-CHANNEL 2 C) ANY ‘B’-CHANNEL 4–26 Stores a CLID number in a specified location (0-99) including sub- address (the latter for the call back feature...

  • Page 56: Cyclic Dialling Store

    4.7 Cyclic Dialling Store ENTER ATTEMPTS: A) ATTEMPTS (1-999, PER NUMBER Default 1) ENTER DELAY B) DELAY AFTER BETWEEN ATTEMPTS: ATTEMPT (3-999, Default 3) ENTER NUMBER OF C) CYCLES OF CYCLES: (0-999, LIST Default 0) ENTER DELAY D) DELAY BETWEEN CYCLES: BEFORE LIST (3-999, RESTART...

  • Page 57: Line Configuration

    SBU128 User Manual 4.8 Line Configuration This is the number the SBU128’s ISDN line, which is used mainly for 128kbit/s calls. A number must be entered for both ISDN ‘B’ channels. If the line is MSN, then choose 2 different numbers from the range of numbers that the line supports.
  • Page 58 A) RESERVED B) S-BUS POWER DETECTION A) DETECTION ENABLED (F) B) DETECTION DISABLED C) LOG A) VOLATILE (F) STORAGE B) NON VOLATILE D) NETWORK A) VARIANT 0 - VARIANT ETSI COMPLIANT (F) *) VARIANT 1 C) VARIANT 2 - ETSI, NO SINGLE OCTET (A) E) PRODUCT A) VARIANT A -...

  • Page 59: Talkwire Operation

    Talkwire Operation 5.1 Introduction Talkwire is the name given to the communication protocol which enables remote control and configuration of a remote SBU128 or other Cabletron SmartSWITCH BACKUP product from the command terminal of your local SBU128. You can do this by placing a call over the ISDN network to the remote unit.

  • Page 60: Enabling/Disabling The Talkwire Facility

    SBU128 User Manual 3. A Talkwire call (over the ISDN) can only be answered by a remote SBU128 if the Configuration\User Port\Call Control\Answer menu of the remote unit is set to AUTO. This is the default setting. Alternatively, if the Answer parameter is set to CLID, the call will be accepted if the CLID of the remote SBU128 matches the ISDN number of the channel from which you are placing the call.

  • Page 61: Using Talkwire For Dlc Testing

    DIALLING xxxxxxx RINGING ONLINE TALKWIRE ACTIVE (V2+) During this dialling sequence, the terminal operator of the remote SBU128 will be notified of the incoming call. Note that the calling line ISDN number will only be presented if the network is providing the CLI. An unsuccessful Talkwire call will be identified by a screen message of: TALKWIRE TIMEOUT This is displayed after the time set within the Talkwire Delay Timer has...

  • Page 62: Remote Mode

    SBU128 User Manual 5.6 REMOTE Mode REMOTE is the Talkwire command which is used to gain access to the remote SBU128, with which you have an active Talkwire link. After dialling from the Operation menu, then select the Remote menu from the Operation\Talkwire menu.
  • Page 63 Talkwire Operation timer time-out to expire and then initiate the switch without Talkwire control. With Configuration\Call Control\Talkwire menu set to T/W and Auto Connect, the units will try Talkwire first. If Talkwire succeeds within the Talkwire timer period, then User port connection occurs as for the “Talkwire”...

  • Page 64: Polled Management

    If you are configuring SBU128s that are already connected to the SBUGPS (or the Manager Card in the rack), you must disable the lockout switch relevant to the SBU128 you wish to access. Once set to polled the lockout switch can be enabled for that SBU128.

  • Page 65: Configuring The Polled Command Mode

    00001 1> _ To disconnect the console from this SBU128’s COMMAND port, type any other poll number, or select the Logout top level menu. Alternatively, you can switch to the COMMAND port of another polled SBU128 by typing: 00001 1> POLL xxxxx[CR]...

  • Page 66: Sbu128 Specification

    SBU128 Specification Interfaces Dimensions Mains Voltage Consumption Frequency Environment 80-10200000-01 SBU128 Specification One X21 or V35 User interface. One X21 or V35 Link interface. One V24 Command port, operating at 9k6bit/s, 8-N-1. One ISDN RJ45 connector for connection to ISDN Basic Rate. One LAN RJ45 interface for connection to Ethernet.

  • Page 67: Cable Specifications

    Cable Specifications Cable Specifications The following cable specifications are those recommended for use with the SBU128. These can be made according to the specifications attached or alternatively they are available from your equipment supplier. Please see the SBU Systems manual for cables connecting the Command port to the SBUGPS, in Polled Management mode of operation.

  • Page 68: User And Link Cables

    SBU128 User Manual 8.1 X.21 User and Link Cables The cable required for connection to both the User and Link ports with the X.21 interface, should be a straight pin to pin cable with 15 way ‘D’ connectors: Female D-Type Cable SPEC0064 is available for the above.

  • Page 69: User Cable

    8.2 V.35 User Cable The cable required for connection to the USER port with The V.35 interface, should be a straight pin to pin cable with 34 way MRAC connectors: Female 34 Way MRAC Cable CAB0035 is available for the above. 8.3 V.35 Link Cable This is CAB0036.

  • Page 70: Command Port Cable

    SBU128 User Manual 8.4 Command Port Cable This cable is used for connection of the terminal/PC to the SBU128 Command port, and also in polled management mode for connection of the terminal/PC to the SBUGPS. Female 25 Way ‘D’ Cable CAB017 is available for this application. 8.5 Polled Management Mode For connecting the SBU128 to the SBUGPS in polled management mode, please see the SBU systems manual for details of cables.

  • Page 71: European Approvals Information

    European Approvals Information European Approvals Information The B.A.B.T. Pan European Approval numbers are as follows: SBU128: AA608194 The SBU128 is approved for connection to DLC services provided by British Telecom PLC, or any similar telecommunications operator. Due to the power fail mode causing the User port to be hardwired through relays to the Link port, only compatible Approved terminal equipment may be connected to the User Port.

  • Page 72: Glossary Of Terms

    Here are some of the most used abbreviations in this manual with their descriptions:- Basic Rate Interface SBUQHB Quad High Speed Backup Module SBUQHS Quad High Speed Module SBUQLB Quad Low Speed Backup Module SBUQLS Quad Low Speed Module CLID Calling Line Identity (the number of the caller which is presented to the called party) Digital Leased Circuit...

  • Page 73: Command Maps

    Command Maps Command Maps The diagrams in the section show the menu structure in graphical form for ease of understanding. There is a Configuration and an Operation menu block diagram. The Configuration diagrams show the configuration menu structure. Although there are several levels to this, those on the right hand page are only used in Edit Store, their use is self evident.

  • Page 74: Configuration Menu

    SBU128 User Manual 11.1 Configuration Menu 11–2 80-10200000-01...
  • Page 75 Command Maps 80-10200000-01 11–3...

  • Page 76: Operation Menu

    SBU128 User Manual 11.2 Operation Menu 11–4 80-10200000-01...

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