Pft1 (Not For U.s.), Pft4 (Not For U.s.) - Siemens HiPath 5000 Service Manual

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Boards for HiPath 3000
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3.4.12

PFT1 (Not for U.S.), PFT4 (Not for U.S.)

Introduction
In the event of a power failure or system error in HiPath 3800 and HiPath 3750, up to
1 analog trunk with a PFT1 (Power Failure Transfer) board
●
4 analog trunks with a PFT4 board
●
can be transferred (ALUM) to designated analog telephones (Figure 3-161).
When using an analog telephone for outgoing calls, you may need to adapt its signaling method
to match the signaling method of the connected trunk.
ALUM using PFT1/PFT4
PFT
Figure 3-161 ALUM Using PFT1/PFT4 (Not for U.S.)
3-366
TRUNK
a b
R
E
L
A
I
S
SLA SLB
Analog telephone
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
TMB
Trunk circuit
TMA
SMA
Analog station board
(optional)
SMB
P31003-H3560-S403-54-7620, 09/05