Alum4 - Siemens HiPath 3000 Series Service Documentation

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3.4.1

ALUM4

NOTE
>
Danger of damage to property due to surge voltage. The required lightning protec-
tion measures must be taken for this board, see Section 2.1.2, "Lightning Protec-
tion".
Introduction
In the event that HiPath 3550 or HiPath 3350 experience a voltage drop, voltage dip or unre-
coverable system errors, a trunk failure transfer (ALUM) is activated (MSI only).
The module implements a power failure transfer for four analog telephones. The only kind of
telephone that can be used is an analog telephone. The signaling method of the connected
telephones should be the same as that on the trunk line, otherwise signaling will not be possi-
ble.
When the system is deactivated or if an error occurs, the trunk lines are connected directly to
the telephones. When normal operation is resumed, the transfer represented in the figure be-
low takes place.
ALUM4 module function
From analog trunks
To analog stations
Figure 3-125 ALUM4 - Function
3-354
X6 KX-X relay interface
9
System
8
X3
X4
Nur für den internen Gebrauch
16
1
Pins 1-8
To analog trunk board
To central control or
analog station board
Pins 9-16
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation