General information
1
This publication outlines the characteristics, application, and operation of
the Analog Message Waiting Line Card. The information is intended to be
used as a guide when connecting customer-provided apparatus to the line
circuit. The following Analog Message Waiting Line Card is available:
-
NT8DO9AB
-
Analog Message Waiting Line Card @-Law)
I.
The Analog Message Waiting Line Card provides talk battery and signaling
for regular 2-wire common battery 500~type (rotary dial), 2500-type
(DIGITONE dial) telephones and key telephone equipment.
Note:
DIGITONE is a trademark of Northern Telecom.
The NT8DO9AB Analog Message Waiting Line Card mounts in any
ofthe
16 slots in an NT8D37AA Intelligent Peripheral Equipment Module (IPE).
The 16 circuits connect with the switching system and with the external
apparatus via a
H-pin
connector at the rear of the pack. The pack is
320 mm (12.5 in) in height and 254 mm (10 in) in depth.
The circuits are connected to the shelf backplane and fed to the I/O panel
via I/O cables. From the I/O panel, the circuits are connected to the cross-
connect terminal via 25-pair cables. Connection to the station apparatus is
made at the cross-connecting terminal
Analog message waiting line card description 553-3001-l 63
.
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