Siemens Hicom 150 E Office Service Manual page 111

Hicom 150 E Office Rel.1.0 Service Manual - 3.3 Peripheral boards
The NT must be supplied with power via the -48 V (max. 15 W, note the power requirements
of the NTs!) of the PSUI. This ensures the supply of NTs with power and the functioning of the
connected S
2M
The supply voltage is routed through the X06 backplane connector (pins 17 + 37 = -48 V). The
supplied Cablu is not to be used to connect the system and the MDFU. This energises pair no.
15 (= -48 V) of the splitting strip.
The Cablu is not supplied if the REAL board was ordered or is already being used (the scope of
supply for the "ALUM using REAL" feature includes the required Cablu).
S2M feeding of NTs in systems with no USVI
Figure 3-40 S feeding of NTs in systems with no USVI
2M
S2M feeding of NTs in systems with USVI
Figure 3-41 S feeding of NTs in systems with USVI
2M
S2M - NT connection
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lines in the event of a power failure.