Expansion Cabinet Rack Ecr With Batteries And Epsu2-R - Siemens HiPath 5000 Service Manual

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Expanding and Upgrading HiPath 3000
Expanding HiPath 3000
9.2.4.5

Expansion Cabinet Rack ECR With Batteries and EPSU2-R

Danger
7
An expansion cabinet rack (ECR) equipped with an external power supply unit
(EPSU2-R) may only be operated if the housing is closed.
Before opening the housing, disconnect the ECR from the power supply by
setting the switches for battery voltage and line voltage on the ECR's front panel
●
to "Off".
removing the battery fuse on the ECR front panel and
●
unplugging all power and connection cables.
●
If the internal system power supply unit for HiPath 3500 or HiPath 3300 does not provide
enough power for the overall telephone configuration (corded and cordless telephones), an ad-
ditional power supply is necessary. In this case, the EPSU2-R external power supply unit
should be installed in the ECR.
Figure 9-7 shows the position of the EPSU2-R inside the ECR.
The block diagram below illustrates the cable run between the EPSU2-R and the batteries in-
side the ECR and the power supply unit of the system (UPSC-DR). The connection cable be-
tween the expansion cabinet rack ECR and the system cabinet is also provided.
9-18
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
P31003-H3560-S403-54-7620, 09/05