8(46)
Date
Rev
Documentnumber
Prepared
Doc respons/Approved
Checked
Reference
1998-05-29
L
1531-BDV BS 101 01 Uen
INSTALLATION INSTRUCTION
Subject responsible
4.2
Safety and EMC
To fulfil electrical safety requirements IEC 950 and
EN 60950 respectively EN 41003, the exchange must
be connected to protective earth via a flexible wire with
a cross sectional area of at least 6 mm
2
.
Local requirements shall be adhered to.
The connection must be carried out by authorised
personnel.
Before operating, ensure that the chassis is connected
to a hard wired protective earth.
All line interfaces in the PBX are protected in
accordance with K.21 (voltage transients up to 1.5 kV).
BTU-A, BTU-A2, BTU-B, BTU-C, BTU-D and BTU-E
are working with interface TNV.
All other boards and the V.24 port work with interface
SELV.
4.2.1
EMC
The ferrites, with the ERICSSON ordering number
STF 82 601, should be situated close to the slot where
the cables are led out of the cabinet. Two turns through
the ferrite core are sufficient to comply with EN 55022
Class B and to avoid disturbances in non-industrial,
residential (home) usage.
4.3
Access to the boards
Turn out the transport screws (A) about 1 cm at the top
and bottom of the swivel shelf. See figure in
. Hold the bottom of the shelf, lift the shelf slightly
and turn the swivel shelf counter clockwise (ccw). Turn
the screw (B) two turns at the top of the shelf cover
and remove the cover.
PSU
MDF
Protective earth
Connection
for protective
earth
A
A
cross sectional area >6 mm
2
B
BATT.
Shelf
cover
Turn
out
Wrist strap
connector
(only for
AUSTRIA)
SWIVEL-
SHELF
Front edge
Label
SVB BS 101 02/_
Bottom view of cabinet BDV BS 101 01
Note: The mains current rating stated on the label
is the maximum current of the charger version.
168
wrist strap
connector
snap-on
NOTE:
Make sure that a sound ground connection to
the exchange has been established. Other-
wise this can be hazardous in case of light-
ning. Use a grounding wrist strap when
handling PBAs sensitive to electrostatic dis-
charges.