BOARD
BOARD
MAXIMUM QUANTITY PER SYSTEM
C O D E
DESCRIPTION
N 6 1 6
N 1 2 3 6
N 2 2 6 0
ELNB-A
EXCHANGE LINE BOARD
2
4
7
This board contains four exchange
(max.)
(max.)
line circuits.
EXPB-A
2260 EXPANSION BOARD
N.A.
N.A.
2
This board provides an
expansion when more than 12
exchange lines are equipped on a
2260. The board is
in position
EXPB-Al . If more than 18 exchange
lines are equipped on a 2260 a
second EXPB-A board is required and
it is located in position EXPB-A2.
An EXPB-A board is required if more
than 4 intercom links are to be
provided. The board is located in
position EXPB-Al.
EXPB-B
2260 EXPANSION BOARD
N.A.
N.A.
1
This board is used to provide
2 extra voice switching circuits.
This board must be used with an
EXPB-A to provide the 2 extra
intercom links.
-
I
-
-
-
EXPB-C
1236 EXPANSION BOARD
N.A.
1
N.A.
This board provides an expansion
when more than 12 exchange lines
are equipped on a 1236. This board
is also required if more than 4
intercom links are to be provided.
N.A. 1 N.A.
2 extra voice switching circuits.
This board must be used with an
EXPB-C to provide the 2 extra
intercom
OPTIONAL BOARDS
EPGB-B
PAGING BOARD
This board contains two audio
N.A.
1
1
amplifiers to provide the external
paging facility.
EGPB-A
GROUNDING/PAGING BOARD
This board contains one audio
1
N.A.
N.A.
amplifier to provide an external paging
facility. This board is also used
to provide the Earth Recall facility,
which is used for hold, transfer, and
enquiry facility when the systems are
connected to a PABX.
EGDB-A
GROUND RECALL BOARD
This board is used to provide
the Earth Recall facility which
is used to provide hold, transfer,
and enquiry facility when the systems
are connected to a PABX.
32
ISSUE