General information
1
This publication outlines the characteristics, application and operation of the
Analog Line Card. The information is intended to be used as a guide when
connecting customer-provided apparatus to the line circuit. The following
Analog Line Card is available:
-
NT8DO3AB
-
Analog Line Card (p-Law)
The Analog 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 NT8DO3AB Analog Line Card mounts in an NT8D37AA Intelligent
Peripheral Equipment Module (IPE). The circuit connects with the
switching system and with the external apparatus via an 80-pin connector at
the rear of the pack. The pack is 3 18 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. Fron 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 line card description 553-3001-l 61
.,