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Preparation
This section describes the preparations required before installing and commissioning the device. In addition, information is
provided on how to open the casing and make changes, how to attach it to the wall, as well as how to install modules on the PBX
(not included in the delivery).
In addition, information is given on how to close the casing again after installation work has been completed.
The overview of the base circuit board provides information to facilitate finding the various connection options.
Warning: Improper handling of the device can result
in life-threatening electrical shock.
Only a skilled electrician may open the casing and
perform installation work within an open casing.
Warning: Touching voltage-carrying conductors or
telephone connections may cause a life-threatening
electric shock.
The PBX contains hazardous voltages, even out-
side of the power supply unit (for instance ringer
voltages). Work on active, contact-hazardous
parts is only permitted after creating a voltage-
free state.
Working close to active parts is only permitted if
these parts are voltage-free or are protected
against direct contact.
Pull out the power plug of the PBX before com-
missioning a skilled electrician to open the casing
to install the expansion module or perform swit-
ching or connecting services.
If available, also disconnect the devices from
auxiliary power sources (for example, UPS).
Warning: Power surges, which can occur during
electrical storms, can cause life-threatening electric
shocks.
Therefore, do not mount the PBX during an
electrical
storm.
connecting lines during an electrical storm.
Requirements
– The unlocking tool included
Steps to Take
1.
Push the unlocking tool into the opening on the upper
edge of the cover. See
2.
Unlatch the lock by pulling the tool towards yourself.
See
Fig.
13.
Preparation (Casing Variants for Wall Mounting)
Opening the Casing
Avoid
disconnecting
and
Fig.
13.
(Casing Variants for Wall Mounting)
Fig. 13: Opening the casing
3.
3.
Now open the casing by pulling the unlocking tool
upwards from the casing. When you do this, the cover
is also pulled upwards. See
4.
Push the cover far enough (approx. 15 cm) that you
can lift it out of the casing vertically without
resistance.
2.
Fig.
13.
25
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