3(57)
Date
Rev
Documentnumber
Prepared
Doc respons/Approved
Checked
File/Reference
1999-07-15
V
1531-BDV 113 08 Uen
INSTALLATION INSTRUCTION
Subject responsible
1
GENERAL
The exchange cabinet BDV 113 08 can be furnished
with Printed Board Assemblies (PBAs or boards) be-
longing to ERICSSON’s PBX-system ASB 150 02. The
desired system functions are made possible by means
of the appropriate boards and system programming.
The ASB 150 02 system can be expanded to a maxi-
mum of three exchange cabinets of type BDV 113 08.
The PBX can be powered either by a transformer unit,
a switched mode power supply, installed in the back of
the cabinet, or by an existing external 48 V DC-source.
After installation the PBX shall be made operational in
accordance with the stipulations that apply for system
ASB 150 02. See document
. The cabinet is adapted for boards
fitted with brackets containing screws. Only boards
equipped with these brackets must be installed. These
screws must always be fastened to ensure a proper
ground connection.
Every cabinet’s board position could be used for arbi-
trary furnishing with boards belonging to PBX system
ASB 150 02 but the first position in the first cabinet
must be reserved for the CPU-D_.
Any lines connected to the PBX that are subjected to
excess voltage (transients) in conjunction with e.g.
lightning discharges must be equipped with excess
voltage protection, refer to figure: Line protection. The
excess voltage protection can not be installed inside a
BDV 113 08 cabinet but should be mounted in an inte-
grated or external MDF.
Special precautions must be taken for analogue exten-
sion lines that are leading outdoors to prevent the ana-
logue extension board’s secondary protection devices
from blowing in case of lightning.
In this case the extension line must have:
1
A protective resistor of 10
Ω
/1W
(REN 195 42/1) connected in series
between cabinet and MDF
2
An overvoltage arrester (gas discharge
tube) for quenching surges to protective
ground should be installed on the network
side of the protective resistor
Note: The article numbers stated in this document are
included for information purpose only. For
ordering please refer to the relevant system
ORDERING INFORMATION
(131 62-1x/ASB150 02).
1.1
Supplementary Documents
•
Document collection EN/LZB 103 1233
1.2
Tools
In addition to customary installation tools, the following
are recommended:
•
Appropriate slotting tool for connecting cables to
external MDF. For MDF SXK 106 4139/1, use
slotting tool LSY 138 252 and for the MDFs with
KRONE connectors, use slotting tool 769 027/2
•
Board extractor for PBAs (Handle LTD 117 02
and Bottom LTD 117 12)
ASB
150 02
MDF
Protective
resistors 10
Ω
/1W
Overvoltage arresters
Protective
ground
Figure: Line protection
(NGC 402 01)
(REN 195 42/1)
Housed in: Overvoltage
protection cassette
(769 027/3)
Note: Make sure the MDF is really connected
to protective ground.