Trinity DXM / GPT DXE

A range of systems which were manufactured by Nitsuko Corporation for Mercury Communications (Trinity DXM) and GPT/Plessey (GPT DXE). Although certain differences can be seen between the 2 systems the generic operation remains the same. These systems are no longer manufactured, however due to their popularity a vast quantity of systems are currently in use.

Mercury Communications had 3 models within their portfolio and comprised of:

Trinity 8/24 (8 exchange lines by 24 extensions)

Trinity 24/70 (24 exchange lines by 70 extensions)

Trinity 36/100 (36 exchange lines by 100 extensions).

GPT/Plessey also had 3 models available:

GPT DXE 12/40

GPT/DXE 24/70

GPT/DXE 36/100

A standard wiring format could be employed using 4 wire configuration to each extension using "star" wiring. This was available on all but the smaller system (8/24). The other method was a single 4 wire cable which could feed upto 10 extensions on each circuit, "bus wiring". This was available on the complete range of systems.

This system was very versatile and offered the full range of features only normally offered by larger complex systems including analogue private circuits. It is important to note that only analogue exchange lines are available on this system, although through the use of a DISA (direct inward station access) it is possible to supply a form of DDI (direct dial line) to the extension.

A full range of system telephones are available ranging from the basic entry model non display 4 line presentation to the 12 line and 24 line models with no display or LCD display.

Moves, changes and program alterations.

Chester Communications & Training Services Ltd carry a comprehensive range of cards, analogue adapters and extensions in stock and are able to perform the full range of moves, changes and alterations to these systems.

Maintenance

In addition we are able to provide maintenance cover subject to site survey.