Cabletron Systems CBUQBR User manual

Brand: Cabletron Systems

Model: CBUQBR

Type: User manual

CBUQBR

User Manual

Fivemere Ltd. Cabletron Systems Ltd.

Fivemere House Network House

161 High Street Newbury Business Park

Aldershot London Road, Newbury

Hampshire, England Berkshire, England

GU11 1TT RG13 2PZ

Telephone: [44] (0)1635 580000

Fax: [44] (0)1635 44578

CBUQBR

User Manual

80-14004000-01ii

Publication — 80-14004000-01

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. Cabletron Systems Ltd.

assumes no liability for losses incurred as a result of out of date or incorrect

information contained in this manual.

Proprietary Notice:

This document may not in whole or part be copied, photocopied, reproduced,

translated, or reduced to any electronic medium or machine-readable form

without prior consent from Cabletron Systems Ltd.

Approval Notice:

This equipment is approved for connection to all United Kingdom

telecommunications services, including British Telecom PLC, Hull City

Council and Mercury Communications, and is subject to the conditions set

out in these instructions for use.

All users of this equipment in UK and Europe must make themselves familiar

with the statutory instructions contained in Section 4.

Pan European Approval:

Where the Pan European Approval CE Mark ‘168X’ is applied to the product;

this approval is for connection of the ISDN interface within the European

Community (EC).

Approval in non EC countries is subject to local regulations in force, please

contact your Technical Support for information.

EMC Directive:

This product has been designed for use in Commercial and Light Industrial

environments and tested to relevant EMC Standards as listed in the

European O.J. All testing was carried out using screened interconnection

cables. Should the equipment be used in a different environment the user

may need to take additional EMC precautions.

Fivemere Ltd. is a subsidiary of Cabletron Systems Inc., USA.

CBUQBR

User Manual

80-14004000-01 iii

History Sheet

80-14004000-01 V1.00 Software 20 March 1997

CBUQBR

User Manual

80-14004000-01iv

TABLE OF CONTENTS

1 THE QUAD BASIC RATE MODULE 1–1

1.1

NTRODUCTION

1–1

1.2

ENERAL

ESCRIPTION

1–1

1.3

HELF

OWER

OADING

1–3

1.4

WITCHES AND

UMPERS

1–4

1.4.1

8 W

DIL S

WITCH

S2 -

POLES

1-4 1–4

1.4.2

RODUCT

ARIANT

- S2 P

OLES

5-8 1–5

1.4.3

4 W

DIL S

WITCH

S3 1–5

1.4.4

UMPERS AND

INKS

1–6

1.5

CBUQBR S

TATUS

LED

1–7

1.6

ANAGEMENT AND

ONTROL

1–7

2 OPERATION 2–1

2.1

NTRODUCTION

2–1

2.2

ISDN I

NTERFACES

2–1

2.3

LOCKING

2–1

2.4

EAL

IME

LOCK

2–2

2.5

ALERTS 2–2

3 COMMAND MENU 3–1

3.1

NTRODUCTION

3–1

3.2

ONFIGURATION

3–1

3.2.1

ONFIGURATION

RINCIPLES

3–1

3.2.2

UGGESTED

ONFIGURATION

ETHOD

3–2

3.3

OMMAND AND

ARAMETER

TRUCTURE

3–4

3.4

OP LEVEL

ENU

3–4

3.5

ONFIGURATION MENU

3–5

3.5.1

LARMS MENU

3–5

3.5.2

OUTING MENU

3–7

3.5.3

INE

ONFIGURATION MENU

3–9

3.5.4

ISDN M

ENU

3–10

3.5.5

LOCK

ODE

3–10

4 EUROPEAN APPROVALS INFORMATION 4–1

5 GLOSSARY OF TERMS 5–1

The Quad Basic Rate Module

80-14004000-01 1–1

1 The Quad Basic Rate Module

1.1 Introduction

The Cyber Backup Quad Basic Rate Module (CBUQBR) is a single width

card for use in either the CBU/14 or the CBU/6 Shelf, otherwise known

as a ‘Shelf System’.

The CBUQBR connects to 4 basic rate ISDN lines providing up to 8 ‘B’

channels for interfacing with other application cards in the Fivemere-

Cabletron Shelf System. A Shelf System supports a single CBUQBR or

a single CBUPRI but not both simultaneously. (Please see section 5 for

the Glossary of Terms used in this manual).

Management is provided via the Cyber Backup Generic Shelf Manager

(CBUGSM) which forms a standard part of the Shelf System.

Local or remote access to the cards in the shelf is by password which is

entered on the first poll of the shelf. Alarm messages from the cards in

the shelf are routed to the alarm and/or command ports on the

CBUGSM.

For cards other than the CBUQBR used in the Shelf System, please see

the relevant manual.

1.2 General Description

The CBUQBR comprises a front card and a rear interface card.

CBUQBR

User Manual

80-14004000-011–2

The front and rear panel layouts for the CBUQBR are shown below in

Figure 1.

Ch. in Use

CBU

Alert

BRI 2

BRI 3

BRI 1

BRI 4

ISDN

L1 L2

BRI 1

BRI 2

BRI 3

BRI 4

QBR

Figure 1 - CBUQBR Front and rear panels

The Quad Basic Rate Module

80-14004000-01 1–3

The CBUQBR provides up to 8 x 64kbit/s ‘B’ channels, each channel can

be switched to any time-slot on any of the four 2.048 Mbit/s backplane

buses.

The CBUQBR will provide on demand individual 64 kbit/s channels for

use by other application cards in the shelf. The other application cards

are completely responsible for the provision of telephone numbers,

CLIDs, dial commands, timers, and call retry attempts.

Software download to the module is supported via the CBUGSM.

1.3 Shelf Power Loading

The CBUQBR requires the following current on the power rails:

+5V +12V -12V

300mA 5mA 5mA

When installing cards into either type of shelf, the installation engineer

must ensure that the shelf power supplies’ combined output can meet

both the overall power requirements and the individual rail current

requirements of all the cards in the shelf. (Please refer to the relevant

manuals for this information on the cards). This is true whether allowing

for redundancy or not.

Warning:

The Shelf should be professionally installed by a competent

engineer. There are no operator serviceable parts inside the

unit and it should only be opened by a qualified service

engineer. The mains supply should be disconnected before

accessing the interior.

Gefäh! Bereich. Nur für fachpersonal. Nicht öffnen

berührungsgefahr!

Zone dangereuse! reservée au personnel autorisé. Ne pas

ouvrir. Tensions dangereuses.

CBUQBR

User Manual

80-14004000-011–4

1.4 Switches and Jumpers

All switches and jumpers must only be changed by a competent

engineer.

1.4.1 8 Way DIL Switch S2 - poles 1-4

Pole 1

OFF (F) Reserved

Pole 2

OFF (F) ‘S’ bus power detection enabled

ON ‘S’ bus power detection disabled

Pole 3

OFF (F) Normal Operation

ON Factory Default.

(It must subsequently be turned OFF

again after powering up to perform a

factory default, to return the CBUQBR

back to normal operation)

Pole 4

OFF System Slave Function

ON (F) System Master Function.

This enables the call control and routing

functions, resident on the CBUQBR.

Poles 5-8

Variant selection, see section 1.4.2.

The Quad Basic Rate Module

80-14004000-01 1–5

1.4.2 Product Variant - S2 Poles 5-8

Different operational modes or product “variants” can be selected via the

8 way DIL switch on the pcb, allowing several different countries and

variants to use the same software.

DIL switch S1 poles 5, 6, 7 and 8 define the variant in binary notation.

Pole 5 = L.S.B., pole 8 = M.S.B., (L.S.B.=Least Significant Bit,

M.S.B.=Most Significant Bit).

Variant Country DIL Switch Settings

Variant 0(F) Euro ISDN. UK and most

European countries:

poles 5,6,7,8 all

OFF.

Variant 2 Euro ISDN*. France and

Sweden:

pole 6 ON,

poles 5,7,8 OFF.

Variant 3 USA AT&T: poles 5,6 ON,

poles 7,8 OFF.

‘F’ is the factory setting, and must not be changed otherwise malfunction

may occur. All poles are ‘read’ by the software on power up.

*NOTE: Variant 2 does not have single octet information elements

present in the call setup message.

Most other countries with Euro-ISDN are likely to require Variant 0.

Please contact your Technical Support for further information.

NOTE: Variants 1-14 must not be set in the UK, otherwise the

Approval of this product will be invalidated. Access to the

interior to change these settings must only be made by a

competent engineer.

1.4.3 4 Way DIL Switch S3

Poles 1-4

ON (F) Not used

CBUQBR

User Manual

80-14004000-011–6

1.4.4 Jumpers and Links

Front card:

These are all factory set and must not be changed.

Jumper Description

(F=Factory Set)

JP1-3 - Not used

JP4 - Clock post

JP5 OUT (F) Watchdog timer enabled

JP6 OUT (F) Rear card absence enables re-boot

JP7-11 MASTER (F) System Bus Master operation

SLAVE System Bus Slave operation

Rear card:

Jumper Description

(F=Factory Set)

JP1 OUT (F) Tx ISDN line 1 termination disabled

JP2 OUT (F) Rx ISDN line 1 termination disabled

JP3 OUT (F) Tx ISDN line 2 termination disabled

JP4 OUT (F) Rx ISDN line 2 termination disabled

JP5 OUT (F) Tx ISDN line 3 termination disabled

JP6 OUT (F) Rx ISDN line 3 termination disabled

JP7 OUT (F) Tx ISDN line 4 termination disabled

JP8 OUT (F) Rx ISDN line 4 termination disabled

The Quad Basic Rate Module

80-14004000-01 1–7

Should problems be found with long lengths of ISDN cable, the jumpers

can be put IN to enable the 120R termination resistors for each port

individually.

1.5 CBUQBR Status LEDs

The status LED’s are illuminated under the following conditions:

LED Colour Conditions

Channel in

Use

(B1/B2)

Green When a call is active,

i.e.

the relevant ‘B’

channel is in use (including in use for a

Talkwire call)

L 1 Green When ISDN Layer 1 (physical activation) is

active

L 2 Green When ISDN Layer 2 (LAPD) is active

ALERT Red When an ALERT is being sent to the CBUGSM

1.6 Management and Control

The CBUQBR operates in conjunction with a CBUGSM for configuration

purposes so there is no directly connected command port. Under normal

conditions the majority of commands are initiated by other application

cards so only a limited set of commands are available directly to the

user.

Please see the manual on the Shelf Systems for details of how to use

the CBUGSM.

Operation

80-14004000-01 2–1

2 Operation

2.1 Introduction

Each Basic Rate Interface on the CBUQBR operates as a TE. This

provides 64kbit/s ‘B’ channels for the consumption of other user cards in

the Shelf System. The CBUQBR operates as the sole provider of ‘B’-

channels within the Shelf.

The other application cards are completely responsible for the provision

of telephone numbers, CLID’s, dial commands, timers, call retry etc. -

the CBUQBR has no facility for storing these facilities.

2.2 ISDN Interfaces

Four Basic Rate ISDN ‘S’ interfaces are provided conforming to the I.420

standard.

Line termination resistors can be selected (in or out) by jumpers on the

rear interface card. Sometimes termination is required with long cable

lengths to the ISDN termination point.

2.3 Clocking

The clock for the system is derived from the network. One interface acts

as a clock master and generates clock and frame sync for the system.

The remainder the CBUQBR provides elastic buffering to remove any

clock phase jitter.

CBUQBR

User Manual

80-14004000-012–2

The first interface (in the order 1, 2, 3, 4) that synchronises with the

network supplies clock to the system - if this clock source fails the next

interface with a synchronised clock is used. If interface 4 is providing

clock and synchronisation and it is lost, then interface 1 is tried. If no

clocks are in sync then a free running clock is supplied to the system.

2.4 Real Time Clock

A Real time clock function is provided by the operating system on the

CBUQBR. This software based real time clock facility calculates only

hours minutes and seconds. The time and date used is set and

maintained by CBUGSM automatically for all cards in the shelf.

2.5 ALERTS

There are three ALERTs specifically generated by the CBUQBR. These

are output by the CBUQHSM on the Command and Alarms ports,

depending on the settings in the CBUGSM menus.

ALERT LAPD Activity

Sends an ALERT indicating the state of LAPD.

The ALERT message is:

ALERT LAPD Active

ALERT LAPD Inactive

as appropriate.

Operation

80-14004000-01 2–3

ALERT System Clock

Sends an ALERT indicating the state of the

System Clock. There are three possible

messages associated with this ALERT :-

ALERT System clock free running

(When No BRI is in Sync or when the BRI that

was supplying system clock loses sync)

ALERT System clock gained from

BRI-n

(When a BRI acquires sync and provides

system clock)

ALERT System clock lost from BRI-n

(When a BRI loses sync and the next source

is hunted as appropriate)

Where n is the port number, 1 to 4

These ALERTs are only generated when the

CBUQBR is in Clock Master mode.

ALERT B-Channel

usage

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 in the range 0 - 8 and :-

x is the number of channels in use

and y is the number of channels remaining

available

x + y = 8

These ALERTs can all be individually enabled or disabled. The Default is

Enabled.

Command Menu

80-14004000-01 3–1

3 Command Menu

3.1 Introduction

The majority of CBUQBR actions are initiated by other application cards

via the CBUGSM so that only a small set of configuration commands are

available to the user for this module.

3.2 Configuration

Owing to the nature of the CBUQBR having 4 network ports, setting up

requires care and understanding to ensure that all the ports are

configured correctly. Malfunction can easily be caused through a faulty

configuration. Time that is spent carefully on this is time well spent.

3.2.1 Configuration Principles

A few simple principles need to be followed for configuration; these are

as follows:-

• Each port that is connected to the network must have its Line

Configuration (under Configuration top menu) correctly specified for

both ‘B’ channels on each line. This is irrespective of whether the line

is a dual numbered line (a discrete number for each ‘B’ channel), or

an MSN line, or single numbered sub-address configured line. The

Line Configuration contains up to 7 digits - which are the last 7 digits

of the line number. The least number that must be entered is the last

discrete ‘B’ channel digits, i.e. for numbers 123459 and 123460, the

Line Configuration must contain at least the number 59 for B1 and 60

CBUQBR

User Manual

80-14004000-013–2

for B2. The best practice is fill in the last complete number block, for

example in the UK the last 6 digits (or 7 digits for city numbers). The

number entered is also used for dialling additional aggregation calls

when using the CBUQHS.

• If any port is not connected to the network then it must have its line

configuration deleted for both ‘B’ channels. Any ports can be

disconnected, providing the Line Configuration menu reflects this.

• The Routing menu (under Configuration top menu) must be

configured to assign user port cards, e.g. CBUQHS or CBUQLS, and

their respective ports. If the line is an MSN type or single numbered

sub-address type, the desired MSN or sub-address numbers must be

entered in the Set MSN and Set Subaddress sub-menus. (The

‘Record’ number is simply a numbered list and its number has no

relation to port numbering, card slot numbering or ‘B’ channel

numbering).

• When using with the CBUQHS one extra ‘B’ channel is required for

synchronisation purposes in addition to the number of ‘B’ channels

required for user port speed aggregation. For example for a 448kbit/s

call, seven ‘B’ channels are required for data plus one for

synchronisation, thus requiring 8 ‘B’ channels - all four BRI lines

which is the maximum. 512k aggregation is not possible with a

CBUQBR.

3.2.2 Suggested Configuration Method

The following is a tried and proven method of configuring the CBUQBR,

in the following order:-

1. Plug in the BRI lines into the CBUQBR, making a note of all the line

numbers versus CBUQBR ports.

2. Go to the Line configuration menu and enter each line number

against the Primary and Secondary entries, for all ports connected to

lines. The ‘Primary’ entry is the B1 number and ‘Secondary’ entry is

the B2 number. For an MSN line, enter the desired MSN number,

e.g. Primary 123451, Secondary 123452 (assuming a base number of

123450, with a possible number range of 123450-123459). For a

single numbered line, enter the same number for both Primary and

Secondary entries.

Command Menu

80-14004000-01 3–3

3. Go to the Routing menu and select Set Slot/Port. Select an unused

record number and fill in the correct slot and port numbers for user

port cards. Repeat this using a different record number for each port

on all cards.

4. If using MSN lines, select Set MSN and enter the desired MSN

against each record for each user card slot and port.

5. If using sub-addressed lines, select Set Subaddress and enter the

desired sub-address against each record for each user card slot and

port.

6. Set any other parameters as required, e.g. ALERTs menu.

7. Your CBUQBR should now be set up correctly. It may be helpful to

test that the lines are operational on each port. This can be done by

using an analogue telephone dialling one number on each port and

checking that the L1 and L2 (ISDN Layer 1 and 2) LEDs alight for

each port on the front panel. The ‘B’ Channel in Use LED will

momentarily flash during the incoming call. If any port LEDs do not

light then either the line is disconnected or not operational on that

particular port. This must be corrected first before attempting to use

the system.

8. When dialling check that the correct L1 and L2 BRI LEDs correspond

to the numbers dialled. If incorrect ports respond, check that the lines

are plugged into the correct ports against the line configuration menu.

9. Having got all lines operational, try making and receiving calls from

the user port card. If the system does not operate successfully, try

the following:-

• Check the Line Configuration and Routing menus.

• Check that the ISDN lines used do support sub-addressing and

whether sub-addressing is presented from the caller (if set up on

the CBUQBR).

• Check that the ISDN lines used do support MSN (if set up on the

CBUQBR).

The network provider will be able to provide information on the last two

points.

CBUQBR

User Manual

80-14004000-013–4

3.3 Command and Parameter Structure

The CBUQBR uses a hierarchical command menu structure similar to

other Fivemere-Cabletron products. Some menu options are marked

with an asterisk (*) to indicate that they are unavailable - this is to

maintain the overall menu structure across the product range. The

following sub-sections describe the menus.

The following commands have a special meaning and are executed with

single keystrokes:-

Displays the status information for all channels of the module.

Returns to the top level menu.

Goes back (up) one level in the menu system.

3.4 Top level Menu

*) OPERATION

No operation menu is available.

B) CONFIGURATION

See section 3.5 below.

C) LOGOUT

Logs the user out of password

entry.

Command Menu

80-14004000-01 3–5

3.5 Configuration menu

The first three menus are unavailable - they are included to maintain the

menu structure across the product range. Refer to the Shelf Systems

manual for details of how to set these menus on the CBUGSM.

The (F) where shown is the factory default setting.

*) SYSTEM

*) COMMAND PORT

*) ALARM PORT

D) ALARMS

See Section 3.5.1

E) ROUTING

See Section 3.5.2

F) LINE CONFIGURATION

See Section 3.5.3

G) ISDN

See Section 3.5.4

H) CLOCK MODE

See Section 3.5.5

3.5.1 Alarms menu

A) ALERT LAPD ACTIVITY

A) ENABLED (F)

Sends an ALERT indicating whether

ISDN LAPD (Link layer) is active or

inactive. It must be active for the

PRIM to be able to make or receive

calls. The ALERT message is:

ALERT LAPD active

ALERT LAPD inactive

B) DISABLED

This ALERT is disabled.

CBUQBR

User Manual

80-14004000-013–6

B) ALERT SYSTEM CLOCK

A) ENABLED (F)

Sends an ALERT indicating the state

of the System Clock. There are three

possible messages associated with

this ALERT :-

ALERT System clock free

running

(When No BRI is in Sync or when the

BRI that was supplying system clock

loses sync)

ALERT System clock gained

from BRI-n

(When a BRI acquires sync and

provides system clock)

ALERT System clock lost from

BRI-n

(When a BRI loses sync and the next

source is hunted as appropriate)

Where n is the port number, 1 to 4.

These ALERTs are only generated

when the CBUQBR is in Clock Master

mode.

B) DISABLED

This ALERT is disabled.

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Cabletron Systems CBUQBR User manual

Brand: Cabletron Systems

Model: CBUQBR

Type: User manual

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Cabletron Systems CBUQBR User manual

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