Using network communications combined with
subscriber line telephone techniques, VoCALL
provides large-scale cable savings, while not
requiring a dedicated rack room to house a central
exchange.
Control of the VoCALL EVCS is simplicity itself, the
master console has a clear four line backlit display
which shows the calling outstation name in plain
text, and calls can be made to outstations by either
dialling the number of the unit, or choosing the
name from a text dialling directory.
The network comprises a line or ring of 8 cores (see
below), each leg can be up-to 500M depending on
cable type. A ring topology is recommended by 5839
pt9.
In line with the recommendations of BS5839 pt9
multiple master consoles can be fitted to VoCALL
(up-to eight) with lockouts operating when a
consoles are in use.
The stylish master console case is manufactured from
brushed stainless steel with black aluminium rack
wings and extruded aluminium guide rails, the case
has been designed to mount directly on a wall or
desk, or fitted into a rack using an optional
mounting kit (occupies 6u of rack space) |
