Siemens HiPath 3000 V3.0 or later Gigaset M1 Professional, Руководство по обслуживанию, Страница: 456 / 1202

Boards for HiPath 3000
P31003-H3560-S403-54-7620, 09/05
3-366
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
boards.fm
Options
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 ( P ower F ailure 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
Figure 3-161 ALUM Using PFT1/PFT4 (Not for U.S.)
R
E
L
A
I
S
TMB
TMA
SMA
SMB
Trunk circuit
Analog station board
(optional)
Analog telephone
SLB SLA
b a
TRUNK
PFT