Fig. 2.5.2
CPB-AN FUSE, BATTERY AND SWITCH LOCATIONS
The switch WR (fig
is used to clear the RAM memory and initialise the data base when power is
applied for the first time. Check that the WR switch is in
before powering up the system
for the first time. After power is applied to the system wait 10 seconds, then set the switch to the
(down) position. The initial values of the system data are given in section 2.7.5.
There are two switches, on the CPB-AN board, used to set the pulsing speed and make/break ratio for
decadic dialling. The settings are as
Switch
Switch
Result
Designation
Position
Pulsing Speed
0
10 PPS (Standard Setting)
2
20
Make Ratio
MR
0
33% (Standard Setting)
MR
1
39%
2.5.3
TMS-AN
Link
on the TMB-AN selects either the internal (link 1 to
or external (link 2 to 3) music source to
provide music on hold. Volume control
controls the music-on-hold level, while VR2 controls the
background music level (see fig.
50
AN-61 6
ISSUE 1
