power supply unit must therefore al-
ways be installed.
Modules can be installed either
when the entire system is configured
or as an upgrade at a later time.
Notes on Disconnecting
the Mains Supply
DANGER! Hazardous volt-
ages inside the device!
The OpenCom 510 must be discon-
nected from the mains supply for
the following installation work:
Installation of the central control
■
module
Installation of a power supply
■
unit
If a 1-12 frame is being powered by
two power supply units, it is de-en-
ergised by unplugging both mains
cables.
DANGER! Always unplug the
mains cables of both power sup-
ply units when installing the cen-
tral control module or a power
supply unit.
If you unplug the mains cable of the
group 2 (B) power supply unit, the
Installation
OpenCom 510 will still be opera-
tional! However, only the modules
supplied by the group 1 (A) power
supply unit, i.e. the central control
module and the interface cards in
slots 1 - 6, will be functional.
If you unplug the mains cable of the
group 1 (A) power supply unit, the
OpenCom 510 ceases to be opera-
tional. However, slots 7 - 12 (D) will
still be supplied with operating volt-
age. (Refer to the illustration
OpenCom 510: 1-12 frame slots on
page 22 to determine the location of
the modules specified in parenthe-
ses above.)
The LEDs of each module indicate
whether the respective module is
operational. For further information
on LED indicators, refer to Modules
starting on page 52.
Installing the Central
Control Module
The OpenCom 510 comes with the
central control module installed.
Should you need to exchange the
central control module, proceed as
follows:
1. Shut down the OpenCom 510. To
do so, first restart the system by
– entering the code procedure
H * 1 8 5
#
PIN)
on a connected tele-
phone, or
Installing Modules
(system
23
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