DataKinetics DSC110, DSC210 User Manual

DataKinetics DSC110 / DSC210 User Manual Issue 12

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DSC110 / DSC210

SIGNALLING CONVERTER

USER MANUAL

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IMPORTANT INFORMATION

The information in this manual is supplied without warranty as to its accuracy. DataKinetics is not responsible or liable for any loss or damage of whatever kind arising from the use of the converter and its documentation.

WARNINGS

For safety the ground connection should always be made.

The CPU card is fitted with a Lithium Battery that contains toxic substances. This battery is

NOT rechargeable.

CAUTION

Danger of explosion if battery is incorrectly replaced. User should not replace battery, the

card must be returned to the supplier for rework.

This equipment contains Electrostatic Sensitive Devices. (ESDs) which may be permanently

damaged if incorrectly handled. If modules are removed from the chassis they must be

handled in accordance with the EN100-015 Part 1 General Requirements.

For warnings in German see Appendix.

APPLICABILITY

This manual is applicable to DSC110 and DSC210 units with software V5.08 and later installed.

¤1997-2001 DataKinetics Ltd. All rights reserved. No part of this document may be reproduced, stored in a retrieval system or transmitted in any form or by any means without the prior written permission of DataKinetics Ltd.

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Revision History

ISSUE DATE CHANGES

1 14-May-97

Added ANSI ISUP Functionality. Added C7 Routing Functionality. Added C7 Link set change Command. Minor changes to the prerequisites, values, and parameters.

2 26-Aug-97

Digit analysis functionality added to allow route selection depending on called party number. Default routes added to points of origin to simplify configuration. Further hunting algorithms added to allow sharing of load between groups. Allowed inhibiting of C7 links for temporary deactivation. Enforced circular routing for circuit map hunting to avoid user providing inconsistent data. Allows telnet for remote login to MML session.

3 26-Sep-97

Allows timers to be configured for signalling systems. Added NUP signalling system. Allows NI to be changed for a linkset and DPC for a C7 route. New hunt type added to allow test calls to particular circuits.

4 24-Nov-97

Traffic measurements commands for routes and circuit groups added (MSCGP & MSORP). Description of new commands for Remote Data Centre option added. This option supports transfer of Billing Records, Call Failure Records and Periodic Traffic Measurements to be transferred over Ethernet to a Remote Data Centre. Allows the specification of multiple Q931 circuit groups on a single Q931 link.

5 09-Mar-98

Introduces support for calling party number authorisation tables where the calling party number is required to be authorised before the call is allowed to proceed. Allows the default configuration to be selected when restarting system. Allows billing records to be saved to hard disk. Increases the number of calling a called party number prefix digits that can be added. Support for transmission of alarms to remote data added. New Zealand ISUP added. When RTHSP is entered without parameters then hunt sequences for all routes are printed. The TUP signalling system is now supported.

6 22-May-98

Configuration of concurrent ITU and ANSI operation introduced. Allows configuration of multiple OGRs in circuit mapping mode. Partner Maintenance blocking is supported. Inhibiting of single circuits is allowed. T1 Boards can now be configured. New circuit group parameters (L1, OHEC, INT) are added to enhance the configuration of signalling parameters. A new outgoing route parameter (CGMD) added to enhance the configuration of signalling parameters. Outgoing routes and Circuit Group now print 2 pages of data. New command STCGP added to provide status on a per group basis. Configuration to allow the converter to act as a DUAL added.

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7 02-Jul-98

Semi-permanent cross connection functionality added using new commands: CNXCI, CNXCE and CNXCP. Monitoring of signalling links added using new MML commands: CNMOI, CNMOE and CNMOP. Preventive Cyclic Retransmission (PCR) method of error correction added on a per-link basis for C7signalling links.

8 18-Dec-98

PCM configuration enhanced by addition of new parameters LC (Line Code) and FF (Frame Format) and the ability to select T1. New Circuit Group configuration parameters U2U, ISMD & IHEC Maximum number of Points of Origin and Outgoing Routes increased to 90. New Outgoing Route parameter NEXT added. RDC operation enhanced to allow individual primary and secondary

RDC’s to be configured (RDC1, RDC2) for each Continuous Record and Periodic Report. New commands CNRDC, RDCRC, and RDPRC. Improved IP support allowing user configuration of sub-net mask (SUBNET) and default router (GATEWAY). New CGMD modes to avoid requesting a CLI if one is not present in the initial setup message.

9 27-Aug-99

Manual now documents both Revision 1 and Revision 2 hardware and the compact version of the converter – the DSC110.

Revision 2 hardware uses a different CPU card and Solid State Memory card and requires different switch settings for the signalling cards.

Monitor card now referred to as the Alarm card. New table id parameters LSTAB and ISTAB so that local and user

service control can both access multiple tables. Local service control function “calling party number authorisation” is

now supported on the point of origin as well as the outgoing route. Added local service control function “calling party number insertion”

to allow the user to insert a calling party number taken randomly from a table of calling party numbers.

Digit analysis can now analyse up to 16 digits. Clearing cause and CPC mapping tables added. New NUP variant supporting SIM interchange added. Command grouping now arranged in alphabetical order. New command STBOP displays board status.

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10 19-May-00

DPNSS signalling system added. Added custom profiles to configure specific indicators for the calling

and called party number using the CPCGI, CPCGC, CPCGE, CPCGP, CPCDI, CPCDC, CPCDE, and CPCDP commands.

Added the ability for the user to added/change a second calling party number using the CG2PRE, CG2DL parameters.

Moved the ability to set the calling number restriction indication from the CGMD to the calling party number profile.

Moved the ability to request a calling party number parameter from the CGMD to the new RCG parameter.

Moved the ability to set the called number nature of address indicator from the CDMD parameter to the called party number profile.

Increased the number of prefix digits supported by CDPRE to 16. Allow User to set a default CPC on a per circuit group basis. Supports the ability to transit continuity indicators using new

parameter COT. Allows the ability to upload from the remote data centre a

customised set of clearing cause mapping tables. The USC, USM and USTAB parameter have been changed to be

ISC, ISM and ISTBL respectively. Added CHG to the outgoing route to control the setting of the charge

indication in the backward direction. Added CONV timers T12, T13 and T14 and added TANS to the

outgoing route to allow the user to control the time to answer on an outgoing route basis.

Added optional password control of the second serial and 2 telnet ports using the new PASSWORD parameter specified on a per system basis.

Introduced the LSM parameter on a point of origin and outgoing route basis to allow the user to specify the local service mode. This parameter will be used to specify cli authorisation and insertion instead of using the CGMD parameter. When uploading local service control table a DTYPE of LSC will be used instead of CLIAUTH.

Introduced number translation as part of local service control which is activated using the TRANS parameter specified on a per system basis.

Added transmission medium requirement mode to allow the user to modify the values of the transmission medium requirement parameter.

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11 25-May-00

Added announcements to allow the configuration of WAV format voice announcements using the CNANI, CNANC, CNANE and CNANP. The playing of these announcements is managed by the CNVRI, CNVRE, CNVRP, and STVRP commands. A new CONV timer, T15, is also provided for the management of announcements.

Added ENC to circuit group configuration to allow encapsulation of ISUP parameters in Q.931 messages.

Japanese TTC ISUP protocol added, including support for 16 bit point codes.

Support for the UK Calling Line Identity Blocking Indicator for UK ISUP. The CBI indicator can be manipulated with the CGCB parameter.

Added support for DPNSS Call Diversion. Support for 56k operation on access side links. New calling party number mode (CGMD) to add CGPRE prefix to

the calling party number if one is received. System software disks and configuration data disks must be placed

in the floppy disk drive in a five second window during start-up. This window is indicated by the three red alarm LEDs flashing off for five seconds.

Added new HUNT mode to indicate that no hunting will occur.

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12 12-Oct-01

Allows the user to allocate b CIC of 0 or above to any device on the system by supporting negative BCICs.

Added the ability to specify a default Japan Specific Carrier information code by making user of the CG2PRE parameter.

Support for on box calling party number validation added using LSM. Support for the North American ISDN protocol (NI2) as well as T1 on

ISDN boards. CNUPI modified to support the ability to perform remote software

and configuration update from a remote data centre or locally from floppy disk. CNBUI modified to back up configuration to a remote data center.

Software update procedures to provide support for multiple distribution binaries.

Enhance routing capabilities so the user is able to route on the calling party number, CPC, called party number nature of address and calling party number nature of address by allowing the configuration of a DAMD on a Point of Origin basis.

Added secondary points of origin (SPOR) on points of origin or in digit analysis to allow support for multi stage routing allowing the user to analyse different selection criteria (e.g. CPC, called party number) before selecting the outgoing route.

Allow the user to manipulate satellite indicators in initial address messages using the SAT parameter on a per circuit group basis.

Allow the user to generate a bearer capability parameter based of a received transmission medium requirement parameter using the TMRM parameter on a circuit group basis.

Support new ASTYPE variants Q931-1 and Q931-2 to support partner blocking on the Q931 side so that when hardware blocking occurs on the SS7 side the Q931 signalling link is taken out of service.

Allow the user to configure the maximum number (k) of I frames on Q921 by configuring the L2K parameter on a per circuit group basis.

Support new COT mode to allow incoming continuity checks.. Configuration added to allow the user configure and generate an

‘early’ address complete message by using the BWM parameter on a per outgoing route basis.

Support compatibility CRC4 operation (to allow interworking to non CRC4).

New ASTYPEs DPNSS-2 and DPNSS-3 introduced to allow data calls.

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CONTENTS

1. OVERVIEW...................................................................................................... 10

1.1 General Description ........................................................................10

1.2 Functional Summary.......................................................................11

2. SPECIFICATION – DSC110............................................................................ 15

2.1 Electrical.......................................................................................... 15

2.2 Physical........................................................................................... 16

2.3 Signalling Capability........................................................................ 16

2.4 Environmental.................................................................................16

3. SPECIFICATION – DSC210............................................................................ 17

3.1 Electrical.......................................................................................... 17

3.2 Physical........................................................................................... 18

3.3 Signalling Capability........................................................................ 18

3.4 Environmental.................................................................................18

4. TECHNICAL DESCRIPTION ........................................................................... 19

4.1 Mechanical – DSC110 ....................................................................19

4.2 Mechanical – DSC210 ....................................................................22

4.3 Electrical.......................................................................................... 25

5. INSTALLATION................................................................................................ 28

5.1 Unpacking and mounting ................................................................28

5.2 Power Wiring................................................................................... 28

5.3 Alarm Port.......................................................................................29

5.4 PCM Ports....................................................................................... 29

5.5 Serial Ports...................................................................................... 30

5.6 Ethernet Port................................................................................... 30

6. HARDWARE CONFIGURATION .....................................................................31

6.1 Signalling Card Switch Configuration.............................................. 31

6.2 Signalling Card Hardware Settings (BNC version).......................... 33

6.3 Signalling Card Hardware Settings (RJ45 version).........................34

6.4 Signalling Card E1 / T1 Selection ................................................... 35

7. OPERATION....................................................................................................36

7.1 General........................................................................................... 36

7.2 Log On/Off procedure ..................................................................... 36

7.3 Command Character Set and Syntax ............................................. 37

7.4 Command Formats ......................................................................... 38

7.5 Command Entry..............................................................................38

7.6 Dangerous Commands................................................................... 39

7.7 Changing Configuration Data.......................................................... 39

7.8 Command Responses..................................................................... 40

7.9 Updating System Software.............................................................. 41

7.10 Updating Configuration Data........................................................... 42

7.11 Parameter Definitions...................................................................... 44

7.12 Command Definitions...................................................................... 73

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7.13 Alarms............................................................................................. 74

7.14 Access Side Signalling.................................................................... 78

7.15 Circuit Assignment.......................................................................... 81

7.16 Configuration................................................................................... 86

7.17 Custom Profiles............................................................................. 107

7.18 SS7 Signalling............................................................................... 111

7.19 MMI...............................................................................................118

7.20 Maintenance..................................................................................120

7.21 Measurements .............................................................................. 126

7.22 Remote Data Centre..................................................................... 128

7.23 Routing.......................................................................................... 138

7.24 Status............................................................................................ 151

8. MAINTENANCE............................................................................................. 159

8.1 ESD Warning ................................................................................159

8.2 Fault Diagnosis .............................................................................159

8.3 Repair Procedure – DSC210 ........................................................ 160

9. ANNEX A: Alarm Fault Code Listing.............................................................. 164

10. ANNEX B: Clearing Cause Mappings.................................................... 170

10.1 Definitions of Internal Tokens........................................................ 170

10.2 Receive Clearing Cause Mapping Tables..................................... 173

10.3 Transmit Clearing Cause Mapping Tables.................................... 176

11. ANNEX C: Calling Party Category Mappings.........................................180

11.1 Definitions of Internal Tokens........................................................ 180

11.2 Receive Calling Party Category Mapping Tables......................... 181

11.3 Transmit Calling Party Category Mapping Tables......................... 186

12. ANNEX D: Remote Data Centre (RDC) Operation................................187

12.1 Continuous Records...................................................................... 187

12.2 Periodic Reporting......................................................................... 188

12.3 RDC File Formats ......................................................................... 189

13. ANNEX E: SAFETY...............................................................................194

13.1 AC Power Safety Warning ............................................................ 194

13.2 Lithium Battery..............................................................................194

13.3 Connector Classification ............................................................... 194

13.4 Australia and New Zealand specific..............................................195

13.5 USA and Canada specific............................................................. 195

13.6 German specific............................................................................ 195

14. ANNEX F: Command Summary............................................................ 197

15. ANNEX G: List of Part Numbers............................................................ 200

15.1 Common Equipment Spares.........................................................200

15.2 Signalling Cards............................................................................201

16. ANNEX H: Glossary of Terms ............................................................... 202

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1. OVERVIEW

1.1 General Description

The DSC110 and DSC210 Advanced Signalling Converters provide conversion between network signalling protocols and access signalling protocols. On the network side they support various Signalling System Number 7 (SS7) protocols whilst on the access side they support various DSS1 and DPNSS protocols.

The converter is available in two chassis types, the DSC110 and DSC210. The DSC110 supports up to 2 signalling cards and the DSC210 up to 16, providing a migration path to larger scale systems. The operation and application interface for both units is identical. The term DSC210 is used in the general sense to describe both units.

1.1.1 Signalling Modes

The converter has two basic modes of operation: Signalling Only mode and Voice and Signalling mode.

In Signalling Only mode the converter processes only the signalling channels. The voice channels do not pass through the converter. This mode allows for the maximum density in a single chassis by supporting (in the case of SS7 to ISDN conversion) up to 30 access side signalling links, each channel mapping to a corresponding channel on the SS7 side. In signalling only mode the converter does not perform any circuit selection but instead maps access side circuits to SS7 circuits in a fixed one to one mapping.

In Voice and Signalling mode the voice circuits also pass through the converter. Whilst this mode does not allow for such a high density of signalling links, it does allow the converter full control of the voice circuits. This means that the converter can be used to select an outgoing circuit on a call by call basis. One application of this functionality is to provide a concentration function where many access side circuits are served on a demand basis by fewer SS7 side circuits. The converter supports dynamic routing based on digit analysis of the called party number it also supports retry.

It is possible to mix Signalling Only and Voice and Signalling modes at the same time on the converter.

1.1.2 Connectivity

Signalling (and voice where applicable) can be connected to the converter using balanced or unbalanced 2048kbit/sec (E1) connections in accordance with G.703 or 1544kbit/sec (T1) balanced connections in accordance with G.733. A fully populated converter contains 16 signalling cards each with two E1/T1 ports giving a total of 32 ports.

Each channel on any port can be physically connected within the converter in a non-blocking manner to any channel on any of the 32 ports or any of the internal signalling processors.

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1.1.3 User Interface

The DSC210 provides serial port(s) and telnet connections for configuration and management. All ports provide identical functionality and operate using text based MML (Man Machine Language) commands in accordance with CCITT recommendations.

The serial ports allow the user to configure the converter for operation and to carry out subsequent modifications to the configuration. They allow the user to read the current status of the various signalling entities and to view the current active alarms and a history of past alarm events.

The converter has alarm indicators on the front panel and alarm relays for connection to an integrated management system.

1.1.4 Configuration and Program storage

All configuration data is stored in non-volatile memory and may optionally be dumped to floppy disk for backup purposes or to allow a previous configuration to be re-loaded.

All program storage is in non-volatile solid state memory. The operating software can be updated by inserting a new software release in the floppy disk drive. Following a software update the converter will automatically use the saved configuration data so there is no need to re-enter the configuration parameters.

1.2 Functional Summary

1.2.1 SS7 Signalling

The converter supports up to 16 SS7 signalling links in up to 8 signalling linksets. This allows the converter to be connected up to a maximum of 8 other signalling points. When a linkset contains two signalling links the converter supports load sharing and the full changeover and changeback procedures in accordance with ITU-T Q.704.

The converter supports the Message Transfer Part (MTP) in accordance with ITU Recommendations Q.700 .. Q.704 and Q.707 and ANSI operation in accordance with ANSI T1.111.

If required, each signalling link in a linkset can be terminated on a separate signalling card providing additional resilience.

The converter currently supports the following User Part variants:

ETSI ISUP Version 2 Q.767 ISUP ANSI ISUP NUP (UK National User Part) UK ISUP Australian Interconnect ISUP New Zealand Interconnect ISUP (2 Variants) Japanese TTC ISUP Blue Book TUP China TUP SSUTR2 (French TUP)

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1.2.2 Access Signalling

On the access side the converter supports up to 30 access side signalling links. Layers 2 and 3 of the access side signalling protocol are implemented on the signalling cards. Access side call control is implemented on the central processor.

Currently the converter supports the following access signalling:

ETSI Euro ISDN (Network Side) ETSI Euro ISDN (User Side) North American ISDN (Network Side) North American ISDN (User Side) ETSI QSIG DPNSS

1.2.3 Signalling Conversion

Signalling Conversion takes place on the central processor card. The signalling conversion functionality receives messages from the User Part on the SS7 side and from the ISDN/DPNSS call control module on the access side. It performs the necessary conversion selecting a suitable outgoing route and controlling the voice paths as necessary before sending the signalling messages to either the User Part module or the ISDN/DPNSS call control module.

1.2.4 Configuration Model

The basic unit of configuration is a circuit group. All configured circuits (or devices) on an access side signalling link are configured into a circuit group. On

the SS7 side groups of not more than 32 circuits (or devices) are configured into circuit groups. It is usual (although not essential) for a circuit group to contain all the voice circuits on an E1/T1 port.

When an incoming call arrives at the converter the decision on how to process the call comes from the Point of Origin configuration data. Each circuit group is assigned a single point of origin (although a single point of origin may be used by several circuit groups). The point of origin data contains several parameters which allow for the addition or removal of digits to both the calling and called party numbers and also specify either a Digit Analysis Index which is used to carry out (dynamic) routing of the call or a Default outgoing route when routing is not required (this is always true in signalling only mode).

The digit analysis index is used to select a suitable outgoing route on which the call should be placed. This may be one of several outgoing routes selected on the basis of the dialled digits contained in the called party number.

The outgoing route may have an associated Next route. If present the next route provides the ability to route to a diff erent destination if all d evices on the first outgoing route are unavailable or an indication has been received from a subsequent exchange indicating a problem. Since a next route is a route in its own right a chain of routes can be formed to find the best route to a destination.

The outgoing route data contains further parameters that allow the called and calling party numbers to be modified and a Hunt mode that controls the algorithm used to select an outgoing circuit.

Finally the hunt sequence associated with the outgoing route is used to select a circuit group for the outgoing call.

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In this manner the converter affords considerable flexibility in the way that calls are routed from an incoming circuit to an eventual outgoing circuit allowing for the possibility of alternative routin g in the event of network f ailure or congestion.

1.2.5 Cross Connections

The converter allows the user to set up cross connections (semi-permanent connections) between an incoming timeslot on one PCM port and an outgoing timeslot on any PCM port. These connections can either be simplex or duplex.

1.2.6 Monitoring

The converter allows the user to monitor both Access Side and Network Side signalling links by dropping a copy of the signalling to a spare PCM port. This allows for a protocol analyser to be left connected to one PCM port and gives the user the ability to control remo tely which signalling links are monitored. Each monitored signalling link requires two timeslots on the spare PCM port, one to monitor the send direction and the other for the receive direction.

1.2.7 Alarm log

The converter logs any alarm events in an Alarm Log. All alarm events have a

‘fault title’ and are assigned to one of 4 classes, in decreasing order of status:

• Urgent assigned to class 3

• Prompt assigned to class 2

• Minor assigned to class 1

• Disabled assigned to class 0

The operator may change the class of any alarm event under MML command. Urgent alarms cause the Urgent alarm relay to be activated whilst prompt alarms

cause the Prompt relay to be activated. Minor alarms just appear in the alarm log whilst disabled alarms do not even get logged to the alarm log.

The Alarm Log has the capacity for up to 200 entries, each entry detailing the alarm class, fault title, occurrence time, status (active or cleared), and cleared time (if appropriate). If a new fault occurs when the log is full, the oldest entry which is either cleared, of lower class, or equal class is overwritten, in that order of preference.

The operator may request a display of the log at any time and may remove entries that have cleared status.

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1.2.8 Remote Data Centres

The converter can optionally be equipped to support the transfer of billing records, call failure records, alarm reports and periodic measurements over Ethernet to a remote location – The Remote Data Cen t re (RDC).

Multiple RDC’s can be configured by specifying an IP address and a user name and password for the converter to use to ‘logon’ to the RDC.

Data transfer to the RDC uses the File Transfer Protocol (FTP). Billing records, call failure records and alarm reports are transferred to the RDC in

near real time with the provision to back up the billing records to hard disk in the event of Ethernet failure. Measurement reports are made on a configurable periodic basis.

1.2.9 Announcements

The converter can optionally play pre-recorded WAV format sound files without the need for additional equipment. These announcements (ANNC) are loaded onto the converter from a Remote Data Centre.

In order to play announcements the converter requires Voice Resources (VRS). Voice resources can be configured on any signalling card s not used to process signalling. Announcements can then be routed to and played on a per Outgoing Route basis.

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2. SPECIFICATION – DSC110

2.1 Electrical

2.1.1 Power supply (DC Version)

Voltage: 46V to 56V DC (nominal 48V) Power: 50W fully equipped Current: 4 Amps maximum

2.1.2 Power Supply (AC Version)

Voltage Selectable:

100V-120V AC (nominal 110V)

200V-240V AC (nominal 220V) Frequency 50/60Hz Power 50W (fully equipped)

2.1.3 PCM interface

Data rate: 2048kbit/s Connector: 75 ohm BNC (unbalanced version)

120 ohm RJ45 (balanced version) Pulse shape: CCITT G.703 Framing: CCITT G.732

2.1.4 Serial Port

Connector: 9-pin D-type male. Flow control: XON/XOFF. Data bits: 7 or 8 user configurable. Parity: Odd, Even or None, user configurable. Stop Bits: 1 or 2, user configurable Baud rate: 300, 600, 1200, 2400, 4800, 9600 or

19200 bits/s, user configurable.

2.1.5 Alarm Outputs

Type: Two relays which under normal (non-

alarm) conditions are energised. Upon

detection of an alarm condition or loss

of power the relay changes to the de-

energised state. Designation: Urgent and Prompt

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Contacts: Single, break before make changeover,

voltage free Contact

rating:

60V DC 0.5 Amps

Connector: 15-way D-type socket

2.1.6 Visual Indicators

Power: Green LED on front panel indicating power on. Alarms: 3 red LEDs on front panel indicating Signalling,

PCM and System alarms. Disk Drive: LED in disk drive housing indicating floppy disk

access in progress.

2.1.7 Ethernet Interface

Connector: BNC / RJ45 (autodetect) Data Rate: 10Mbit/s

2.2 Physical

Height: 87mm Depth: 430mm Width: 432mm (at chassis) Weight: 12kg (fully equipped)

2.3 Signalling Capability

SS7 Side: 4 signalling links and 4 linksets. Maximum of

two links in each linkset. Access Side: Up to 4 signalling links

2.4 Environmental

Operating temperature:

10 to 45 degrees Celsius

Storage temperature:

-20 to 80 degrees Celsius

Humidity: 20% to 80% non-condensing Vibration: 1.5G (5Hz to 2kHz) Note: Operation of the floppy disk drive is excluded as

the floppy disk drive is not required for normal

operation.

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3. SPECIFICATION – DSC210

3.1 Electrical

3.1.1 Power supply

Voltage: 46V to 56V DC (nominal 48V) Power: 200W fully equipped Current: 4 Amps maximum Fuse type: 8A HRC (located at rear of un it)

3.1.2 PCM interface

Data rate: 2048kbit/s Connector: 75 ohm BNC (unbalanced version)

120 ohm RJ45 (balanced version) Pulse shape: CCITT G.703 Framing: CCITT G.732

3.1.3 Serial Ports

Connector: 9-pin D-type male. Flow control: XON/XOFF. Data bits: 7 or 8 user configurable. Parity: Odd, Even or None, user

configurable. Stop Bits: 1 or 2, user configurable Baud rate: 300, 600, 1200, 2400, 4800, 9600 or

19200 bits/s, user configurable.

3.1.4 Alarm Outputs

Type: Two relays which under normal (non-alarm)

conditions are energised. Upon detection of an alarm condition or loss of power the relay

changes to the de-energised state. Designation: Urgent and Prompt Contacts: Single, break before make changeover, voltage

free Contact

rating:

60V DC 0.5 Amps

Connector: 15-way D-type socket

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3.1.5 Visual Indicators

Power: Green LED on front panel indicating power on. Alarms: 3 red LEDs on front panel indicating Signalling,

PCM and System alarms. Disk Drive: LED in disk drive housing indicating floppy disk

access in progress.

3.1.6 Ethernet Interface

Connector: BNC / RJ45 (autodetect) Data Rate: 10Mbit/s

3.2 Physical

Height: 177mm Depth: 600mm Width: 432mm (at chassis) Weight: 26kg (fully equipped)

3.3 Signalling Capability

SS7 Side Up to 16 signalling links in 8 linksets. Maximum

of two links in each linkset. Access Side: Up to 30 signalling links

3.4 Environmental

Operating temperature:

10 to 45 degrees Celsius

Storage temperature:

-20 to 80 degrees Celsius

Humidity: 20% to 80% non-condensing Vibration: 1.5G (5Hz to 2kHz) Note: Operation of the floppy disk drive is excluded as

the floppy disk drive is not required for normal

operation.

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4. TECHNICAL DESCRIPTION

4.1 Mechanical – DSC110

The DSC110 is designed for 19 inch rack mounting and is provided with slides to allow top access for maintenance purposes. No side access is required. All cable connections are at the rear of the equipment and are described in Section 5.

The DSC110 is intended for use with an extending cable carrier that should be attached between the rear of the 19 inch rack and the converter. All cables should then be attached to the carrier that extends and retracts as the converter is moved forward and backwards on its slides.

The chassis contains 6 board positions and cards are positioned as detailed in the following table. The board position numbers are marked along the rear panel of the converter.

BOARD POSITION CARD

1 Alarm Card 2 Network Card 3 Central Processor Card 4 Solid State Memory Card 5 Signalling Processor CS6 6 Signalling Processor CS6

Table 4.1 DSC110 Physical Card Positions

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CARD CARRIER

POWER SUPPLY

FLOPPY

DISK DRIVE

FAN

Red ‘alarm active’ indicators

Green ‘Power ON’ indicator

Floppy disk drive

Power ON switch

Figure 4.2 DSC110 front panel

Figure 4.1 - Top view of DSC110 with cover removed

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Serial number label.

Figure 4.3 DSC110 Rear panel

Alarm Port

Ethernet

Input voltage

AC power OUT

connector

Serial Port

Solid State Memory Card

Unbalanced 75Ω E1 signalling card

Balanced 75Ω E1 signalling card

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4.2 Mechanical – DSC210

The DSC210 is designed for 19 inch rack mounting and is provided with slides to allow top access for maintenance purposes. No side access is required. All cable connections are at the rear of the equipment and are described in Section 5.

The DSC210 is intended for use with an extending cable carrier that should be attached between the rear of the 19 inch rack and the converter. All cables should then be attached to the carrier that extends and retracts as the converter is moved forward and backwards on its slides.

The chassis contains 20 board positions and cards are positioned as detailed in the following table. The board position numbers are marked along the front of the board slots and on the rear panel of the converter.

BOARD POSITION CARD

1 Alarm Card 2 Network Card 3 Central Processor Card 4 Solid State Memory Card 5 Signalling Processor CS6 6 Signalling Processor CS6 7 Signalling Processor CS6 8 Signalling Processor CS6

9 Signalling Processor CS6 10 Signalling Processor CS6 11 Signalling Processor CS6 12 Signalling Processor CS6 13 Signalling Processor CS6 14 Signalling Processor CS6 15 Signalling Processor CS6 16 Signalling Processor CS6 17 Signalling Processor CS6 18 Signalling Processor CS6 19 Signalling Processor CS6 20 Signalling Processor CS6

Table 4.2 DSC210 Internal Layout

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20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2

FAN 1

FAN 2

FAN 3

Power

Supply

Disk

Drive

Board Position 1

Figure 4.4 - Top view of DSC210 with cover removed

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1 2 3 4 5 6 17 18 19 20

Serial 1

Power

System

PCM

Signalling

Alarms

Signalling

Cards

DSC200

Series

48V DC

ONLY

Figure 4.5 - DSC210 Front panel

+ nc -

INPUT SUPPLY FUSE

SEE HANDBOOK

SERIAL 2

Ground Terminal

Ethernet

Serial Port 1

Cable Support Arm Securing Ring

Serial Number Label

Figure 4.6 DSC210 Rear Panel

Alarm Port

OUT 1 IN 1

OUT 2 IN 2

OUT 1 IN 1

OUT 2 IN 2

OUT 1 IN 1

OUT 2 IN 2

OUT 1 IN 1

OUT 2 IN 2

OUT 1 IN 1

OUT 2 IN 2

OUT 1 IN 1

OUT 2 IN 2

Alarm

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4.3 Electrical

The converter consists of a chassis and the following plug in cards:

• Central processor card

• Solid state memory card

• Signalling processor cards type CS6

• Alarm card

• Network card

4.3.1 DSC110 Chassis and Power Supply

The DSC110 is constructed from a number of cards that plug horizontally into both sides of a card carrier fixed to the base and rear of the chassis. The chassis is fitted with a cooling fan, hard disk, a power supply, a floppy disk drive and a front panel display card.

The power supply converts either a nominal –48V DC supply or a switchable

110V/230V AC supply to regulated +5V, +12V, -5V and –12V DC supplies as required by the converters electrical circuits. The input to this supply is switched ON and OFF by the front panel switch.

The floppy disk drive is mounted at the front of the equipment, and may be used with standard DOS format 3½ inch diskettes formatted to 1.44Mbytes. When the disk drive is being accessed, the front panel disk drive indicator is illuminated. The floppy disk drive is used for loading a new software release onto the converter and for saving configuration data to disk for backup purposes.

The converter is cooled by a fan attached to the chassis also a fan that is internal to the power supply.

4.3.2 DSC210 Chassis and Power Supply

The DSC210 chassis comprises a 20 slot passive backplane along with a power supply module, floppy disk drive, fan power distribution and failure detection module and a front panel display card.

The power supply converts the nominal –48V DC supply to regulated +5V, +12V, 5V and –12V DC supplies as required by the DSC210 electrical circuits. The input to this supply is switched ON and OFF by the front panel switch.

The converter has three fans that run directly from the –48V DC supply. A small circuit board situated under the fan tray provides power distribution to each of the three fans and a fan failure detection mechanism that allows fan failure to be reported in the alarm log.

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4.3.3 Central processor card

The central processor card is a single board computer that runs the main operating software for the converter. This includes the electrical interfaces to the two serial ports and an integral floppy disk controller.

This processor runs the configuration and management software and the signalling conversion software. The lower levels of the protoco l software are run on separate signalling cards.

On power up or following a system restart, the central processor card downloads the operating code and configuration to each of the Signalling Processors cards and configures the unit using the current configuration data.

Two different versions of the CPU card are in use. The KE18 card is used only on Revision 1 DSC210 hardware whilst the KE30 card is a higher performance card used on Revision 2 DSC210 hardware and the DSC110. Care should be taken to use the correct spares.

4.3.4 Solid state memory card

The converter operating software is stored in flash memory on a solid state memory card. The operating software comprises the operating system, the operating program that includes the signalling converter functionality and the operating code for each of the signalling processor cards. With the exception of the operating system that remains fixed, all other operating software is updated in a single operation.

Two different versions of the solid state memory card are in use. The KE17 card is used in conjunction with KE18 CPU cards whilst KE37 is used in conjunction with KE30 CPU cards.

4.3.5 Signalling Card Type CS6

Both network side (SS7) signalling cards and access side Q.931 signalling cards are designated as CS6 type cards. The CS6 card provides two E1 2048kbit/s or 2 T1 1544kbit/s PCM line interfaces using either BNC connectors or RJ45 connectors.

Each signalling card contains a signalling processor that can handle up to two signalling links or voice resources. The signalling card communicates with the central processor using shared memory that appears in the memory map of the central processor.

Timeslots from each PCM are routed to an inter-card PCM highway which uses a ribbon cable connected along the top edge of all the signalling cards. This PCM highway is used in conjunction with digital cross-connect switches on each signalling card to allow any PCM timeslot to b e routed to any signalling resource within the converter or to any other PCM port in the converter. The inter-card PCM highway is used for both voice connections and signalling connections.

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Each PCM port in the system can be designated as a potential clock source and assigned a relative priority. The PCM port with the highest clock priority that currently contains a valid PCM signal is used as the synchronisation reference for the converter. All other outputs from the converter are synchronised to this reference source. In the event o f the active synchronisation source failin g, the converter will select the next highest priority input source as the synchronisation source. If no inputs contain a valid PCM signal then the converter will use a locally generated clock reference as the synchronisation source.

Changes of PCM status are reported by the CS6 card to the central processor card allowing alarms to be entered in the system alarm log

4.3.6 Alarm card

The Alarm card performs a supervisory function within the converter. It contains the alarm relays and front panel LED driver circuitry to pass alarm indications to the user and monitoring circuitry for the power supply output rails, the fan fail detection circuitry and a temperature sensor.

Connection to the alarm relay contacts is via a 15 way D-type socket mounted at

the rear of the Alarm card. Two relays are provided designated “Prompt” and “Urgent”. In the event of a power failure the alarms both fall back into the alarming state.

The fan fail detector, temperature and power supply output monitor circuits are used to detect system failures that are then reported to the central processor. Such failures are indicated to the user by entries in the Alarm Log and the respective front panel indicators being switched on.

4.3.7 Network card

The network card allows connection to the converter via Ethernet. This is used to provide a telnet MML interface for configuring the converter from a remote location and to transfer data to a Remote Data Centre.

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5. INSTALLATION

5.1 Unpacking and mounting

Prior to commencing installation, unpack the equipment and check for any physical damage. In the event of damaged or missing hardware notify both the carrier and DataKinetics immediately.

The equipment should be mounted in a suitable 19-inch rack mount cabinet, with sufficient clearances to allow correct operation of the cooling fan(s).

For the DSC110 air is drawn into the unit through the left-hand side of the unit and exhausted through the right hand side. For the DSC210 air is drawn into the equipment through both sides of the chassis, and is exhausted at the top of the rear panel.

It is recommended that the chassis be mounted at least 500mm above the floor and not more than 1400mm high. This allows for access underneath the chassis and avoids the need for steps to gain access to the top of the unit.

All electrical connections are made to the rear of the unit.

5.2 Power Wiring

Correct bonding of the chassis to earth is important if the converter is not to be effected by electromagnetic interference (EMI). A separate earth connection must be made between the earth post provided at the rear of the chassis and the system earth point. The resistance between the chassis and the system earth point should be no greater than 0.03 Ohms, as measured by an earth bonding tester.

5.2.1 DSC110 Power Wiring (DC version)

Connection is by means of a two terminal screw connector block mounted at the rear of the DSC110. The top connector is positive (+), the lower terminal negative (-), as shown on the rear of the chassis. There is no internal connection between the earth terminal and the power supply inputs, either pole may be connected to earth to suit the system requirements.

The power supply is fitted with an internal fuse, which is not user replaceable.

5.2.2 DSC110 Power Wiring (AC version)

The AC power supply is dual voltage, selectable by a slider switch at the rear of the unit. This switch is marked 230 for connection to 220-240V AC supplies, and 115 for connection to 100-120V AC supplies. This switch must be set to the correct position before power is applied to the unit.

Connection is by means of a standard 3-pin IEC mains inlet on the rear of the chassis. This includes a ground connection, which must be connected to a suitable system earth. The power outlet provides a restricted nominal 230V AC or 115V AC supply for connection to ancillary equipment. The capability of this output is labelled on the rear of the equipment. This port should not be used.

The power supply is fitted with an internal fuse, which is not user replaceable.

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5.2.3 DSC210 Power wiring

Connection is by means of a three terminal screw connector block mounted at the rear of the converter. The protective cover must first be removed from the front of the terminal block, and subsequently replaced when the connection has been made. (Note that only the outer two of the three terminals are used). The power requirements are detailed in the specification section.

There is no internal connection between the earth terminal and the power supply inputs, either pole may be earthed to suit the system requirements.

5.3 Alarm Port

Connection to the alarm port is by means of a 15-way D-type socket, located at the rear of the alarm card. The pin assignment is given in the following table:

Pin No. Function

15 URGENT Alarm Common

7 URGENT Alarm normally open 8 URGENT Alarm normally closed 9 PROMPT Alarm common 2 PROMPT Alarm normally open 1 PROMPT Alarm normally closed

Table 5.1 Alarm Port Connections

5.4 PCM Ports

The PCM port connections depend upon the type of interface ordered. Each CS6 card has two PCM ports with the first port being towards the top of the card.

For unbalanced operation the connectors are 75ohm BNC coaxial connectors. Each PCM port uses two such connectors where the output from the converter is towards the top of the card. The screen connection for the output is connected to earth at the converter whilst no connection is made to the screen connection of the input connector.

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For balanced operation the connector is an RJ45 type connector with the following pinout. Note that pin 1 is the bottom most pin.

Pin No. Direction Function

1 Input Receive Tip 2 Input Receive Ring 3 GND 4 Output Transmit Tip 5 Output Transmit Ring 6 GND 7 No Connection 8 No Connection

Table 5.2 RJ45 PCM Port Connections

5.5 Serial Ports

Connection to both serial ports is by means of a 9-way chassis mounting D-type plug, one located near the bottom edge of the converter, the other at the rear of the CPU card. The pin allocation is listed in the following table:

Pin Name Direction Mnemonic V24 Circuit

number

3 Transmitted Data Output TXD 103 2 Received Data Input RXD 104 7 Request to Send Not Used RTS 105 8 Clear to Send Not Used CTS 106 6 Data Set Ready Input DSR 107 4 Data Terminal Ready Output DTR 108/2 5 Signal Ground GND 102

Table 5.3 Serial Port Connections

5.6 Ethernet Port

Two ports are provided for access to the Ethernet card in the converter. Connection may be made to either the standard RJ45-type socket, or the 50 ohm coaxial BNC connector.

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DataKinetics DSC110, DSC210 User Manual

Specifications and Main Features

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User Manual