1.5 MECHANICAL DESCRIPTION
1.5.1
EQUIPMENT DRAWINGS
All of the main system components are shown in figures 15 to 28. The drawings show location of
in the main equipment racks, fuses, switches, and alarm lamps on the power supplies,
overall dimensions and locations of cords, plugs, sockets, earthing connections and station
controls.
1.5.2
ASSEMBLY AND DISMANTLING INSTRUCTIONS
Main Equipment, RTIU, RGU, CMU
Turn the power off, then loosen screws on the cover to remove covers and gain access for
installation and maintenance.
DSS Console
Unplug the DSS console then carefully remove the front panel using a screwdriver. Loosen
the screws
fixing the top case moulding to the base moulding and lift off the top case.
The bracket retaining the keys and display board may be lifted up.
The line cord may be removed by removing the quick connect terminals and the line cord
retainer, then draw the cord through the base moulding. Refer to fig. 67.
Stations
Unplug from socket, then carefully remove front panel using a screwdriver. Loosen the
screws (2) fixing the top case moulding to the base moulding and lift off the top case. The
bracket retaining the dial pad and keys may be lifted up.
The line cord or handset cord may be removed by removing the quick connect terminals
and the cord retainer, then drawing the cord though the base moulding. For re-assembly
refer to figs. 49 a 50.
To change the transmitter or receiver, unscrew the handset moulding, remove the
anti-static sheet and transmitter or receiver. Ensure that the anti-static sheet is replaced
with the insert.
If a woodgrain
panel is to be replaced by an orange or brown one, the woodgrain
panel should be returned to the store to ensure adequate supplies are available for
maintenance and workshop use.
1 . 5 3
TABLE 3: WEIGHTS OF EQUIPMENT
Main Equipment
Power Supply
Station
DSS Console
Handsfree Console
Ring Generator Unit
l *
Call Metering Unit
No Boards Equipped
N 6 1 6
N 1236
25 kg
18kg
25 kg
0.8 kg
N 2260
23 kg
25 kg
41
ISSUE 2