AUSTIN TAYLOR SPRITE

CCU		Telset and Desk Unit

The Sprite or KLS16 was made by Austin Taylor and introduced in early 1987.   It had a maximum configuration of 16 trunks and 16 desk units. Austin Taylor made special telephones, called Telsets and these matched the desk units (pictures right). In fact any POT phone will work with the desk units.

Two versions of the KLS16 were available, these being an 8+8 or 16+16 (the 8+8 could be expanded to 16+16) system.

The system was a successful electronic version of the old BT key and lamp unit and is used in similar situations. The system went into decline when Austin Taylor was declared bankrupt and wound up.

GPT marketed this switch as the Masterlink.

The `SPRITE' is a mains powered, micro-processor controlled, Key and Lamp system (KLS), - able to connect up to 16 exchange lines to and 16 Desk Units. The modular design allows for simple expansion from the smaller sizes to a fully equipped system.

The wall mounted Central Control Unit (CCU) houses the power unit, terminating strips for connecting the line and desk unit wiring, and printed wiring boards containing the relay matrices, control circuitry, and line and desk unit interfaces.

As an alternative to the wall mounted CCU, there is a "Compact" version mounted in an instrument case designed for temporary installations only. Desk units may be plugged directly into LJUs mounted on the side of the case.

The Desk Units have press buttons for line and intercom selection. LEDs are used to display the current status of all lines connected to the system. Any approved Telephone can be plugged into the Desk unit. Each Desk unit is plugged into a secondary line jack unit, which is wired back to the CCU using either three pair or twist and flat ribbon cable using a suitable terminating box.

System options are programmed during installation, but these may be changed later.

In the event of a failure of the mains power supply, up to four lines are connected to separate mains fail extension telephones or to desk unit telephones. The apparatus must be connected to the PSTN, host CRA and analogue private circuits by the connection of incoming PTO cables to the Test Jack Frame.

The system was two RS422 ports.  These are used for CIL output and programming.   A special programmer was available to allow simple programming of the system.

CAPACITIES

Maximum System Capacities

Exchange Lines - 16
Extensions (Desk Units) - 16
Intercom Circuits - 4
Power-Fail Circuits - 4
Common bell - 2

FACILITIES AND FEATURES

Facilities

Internal call facilities (for information only)
Intercom between desk units
Audible signalling
Conference
Non-blocking
Privacy
Inquiry
Transfer

External line facilities (these are the only network related facilities available)

a) Available at each terminating station
External call organisation and answer
Direct access to external lines
Visual indication of external line status.

b) System facilities
Four queues for incoming calls
Transfer

Features
Power-fail service.

Note The extension (desk unit) numbering scheme is as follows:- 11 to 18 and 21 to 28.

This information is taken from the Norton Telecom version of the PXML.

Norton Multiline

PXML No. BABT/PXML/3  DBS.0022
APPROVAL No. NS/2895/3/H/6004147

BRIEF DESCRIPTION

The MULTILINE is a mains powered, micro-processor controlled, Key and Lamp system (KLS), able to connect up to 16 exchange lines to a maximum of 16 Desk Units. The modular design allows for simple expansion from the smaller sizes to a fully equipped system.

The wall mounted Central Control Unit (CCU) houses the power unit, terminating strips for connecting the line and desk unit wiring, and printed wiring boards containing the relay matrices, control circuitry, and line and desk unit interfaces.

Two CCUs may be coupled to form a 32 x 16 using a concentrator Unit. Each extension user will have a pair of Desk Units, each handling 16 exchange lines. The telephone will plug into one of the Desk Unit pairs.

As an alternative to the wall-mounted CCU, there is a "Compact" version mounted in an instrument case designed for temporary installations only. Desk units may be plugged directly into LJUs mounted on the side of the case.

The Desk Units have press buttons for line and intercom selection. LEDs are used to display the current status of all lines connected to the system. Any approved telephone can be plugged into the Desk Unit. Each Desk unit is plugged into a secondary line jack unit, which is wired back to the CCU using either three pair cable or twist and flat ribbon cable using a suitable terminating box.

System options are programmed during installation, but these may be changed later.

In the event of a failure of the mains power supply, up to four lines are connected to separate mains fail extension telephones or to desk unit telephones. There are up to 8 lines connected to separate mains fail extension telephones or to Desk Unit telephones when a concentrator is fitted. The apparatus must be connected to e PSTN, host CRA and analogue private circuits by the connection of incoming PTO cables to the Test Jack Frame.

Maximum System Capacities

Maximum Control Unit Module Capacities

Concentrator Capacity (optional)

Wiring and Cabling

CCU to Extension LJU wiring

CCU MDF WIRING

Extensions are fed by 6 wires, these wires are paired for Power, Telephone and Data.  The CCU MDF is arranged so that each block of 8 extensions appear on 3 Krone strips, with the top strip being for Data, the second for Power and the third for Telephone. Care must be taken to ensure that the wiring is correct - or fuses can blow!

The wiring is connected as shown in the table below and uses extensions 21 - 28 as an example:

The CCU is laid out as shown in the table below:

PARTS LIST

Last revised: February 26, 2023