Siemens Hicom 112 User Manual

Function expansions with options bu
s
A31003-K16-X001-3-7620, 07/99
Hicom 100 E Version 2.1, Service manual
3-27
Overview of modules
3.6.6 ALUM module
If the power supply fails or a serious system error occurs, a trunk failure transfer is activated
(analogue trunk only).
The module implements trunk failure transfer for four analogue terminals. Normal telephones
are the only terminals that can be used as transfer destinations. The signalling method of the
destination terminals must be the same as that of the trunk, otherwise dialling is not possible.
If the PBX is switched off or when a fault occurs, the trunks are connected directly to the termi-
nals. When normal operation resumes, the transfer shown in diagrammatic form below is effect-
ed. Calls in progress will be disconnected when the power is lost or restored.
Figure 3-16 ALUM module interfaces
The X6 port can be accessed only when the module housing is open.
The cable connected as standard is split and connected to the TLA and SLAS mod-
ules.
ALUM module
MB side
Module side
X1
X2
X3
X4
from trunk
to
terminal
from trunk
to terminal
X3
X4
Normal operation
Normal operation
System error
Trunk subscriber module
X6
1
16
1
8
1
8
X6
1
16

Siemens Hicom 112 Specifications

General

Brand	Siemens
Model	Hicom 112
Category	Telephone
Language	English