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4.4.15. Power Supply connector, On / Off switch
BATTERY
(15)
ON/OFF
Switch
(16)
The PSU is a plug-in of the IDU “Main/extension Board”.
It is a module including DC/DC converters and filters. It is plugged onto the main board by means of suitable
connectors. Two versions exist:
1)
Floating (48-60) V nom.
±
20%;
2)
Floating full range (24-60) V nom.
±
20%.
SAFETY
RULES
Due to possible very high currents in case of short-circuit at the battery power input; it is essential that
the battery power distribution line be provided with a short circuit back-up protection with adequate
breaking capacity
Battery
Pin
Function
Cable
A1
+ BATTERY
A2
GROUND
A3
- BATTERY
See par. 4.4 on
page 74
Figure 81 - Power supply connections
4.4.16. ON-OFF
switch
Powers the unit on and off.
Summary of Contents for 9400AWY
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Page 56: ...ED 01 3DB 05653 DAAA 55 104 Figure 49 Wired minidistributor in a 21 rack...
Page 58: ...ED 01 3DB 05653 DAAA 57 104 Figure 51 ETSI Rack TRU in 9400 AWY...
Page 62: ...ED 01 3DB 05653 DAAA 61 104 Figure 55 IDU 1 0 and 1 1 for BTS vertical installation...
Page 104: ...ED 01 3DB 05653 DAAA 103 104 A 3 Repair form...
Page 105: ...ED 01 3DB 05653 DAAA 104 104 END OF DOCUMENT...