TC12 Installation, Commissioning & Maintenance Handbook
2.2.3
n
the Audible alarm on the system fault indication panel (SIP) sounds it should be
with mains powered equipment), should be asked to cancel the audio
larm, using the audio off switch on the PSU PCB.
o remote SIP fitted the following Resistor links may be removed from
e PSU board: R25, R41, R44, and R47. See 666/CF/02249/102 at the back of
2.2.4
(there is an assembly drawing
r the rack, part number 667/GA cards should only be put in the
Figure 6 - ITU 19" Rack (Front View)
Systems Fault Indication Panel (SIP)
The SIP (part number 667/1/22667/000) is 6U high and is screwed to the Instatio
racking in front of the PC.
If
cancelled as required from the UTC TCC terminal. If the reason for the alarm is a
UTC TCC failure, an authorised/trained person (trained in the safety aspects of
working
a
Under System Failure conditions the output relays for a remote SIP switch on and
off, which gives rise to a clicking sound. If the customer wishes to stop this sound
and there is n
th
the Handbook.
19" Racking PCBs
Figure 6 shows a front view of a fully equipped rack
fo /22626/000). The
um of four racks mslots in the order shown. A maxim ay be fitted to an Instation.
M
O
D
E
M
1
T
R
A
N
S
1
M
2
O
D
E
M
T
R
A
N
S
2
M
O
D
E
M
3
T
R
A
N
S
3
M
M
4
T
R
A
N
O
D
ES
4
1.5”
PSU
6U Rack, Ra dial Sys tem
666/HE/43100/000 Page 22 Issue 9