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950-719-111-03, Revision 03
Overview
PCS-719 List 1A
June 29, 2000
3
The following sections identify each connector by type and function.
Power
The COT shelf backplane has a seven-position power terminal strip (TB1) that provides connections for dual
–48 Vdc, common battery return, and frame ground by way of screw terminals. The COT shelf can be wired for
redundant powering, split-powering, or single-source powering depending upon requirements.
HDSL
Each COLU slot is equipped with four wire-wrap pins for xDSL interfaces.
Two-Wire Subscriber Circuits
A total of 96 two-wire subscriber pairs terminate at the Telco connectors (P1, P2, P3, and P4) on the COT shelf
backplane. Six pairs route to each of the sixteen COLU slots. See Tables 25 through 28 for the connector pinouts.
Four-Wire Subscriber Circuits
The COT shelf provides a total of sixteen four-wire data interfaces (P5) that are separate from the two-wire pairs.
One four-wire connection is provided for each of the sixteen COLU slots. See
for the
connector pinouts.
COLU Edge Card Connectors
Tables 2 through 17 show the backplane connector pinouts for each COLU slot.
Table 1.
PCS-719 Backplane Connectors
Connector
Description
J1
PAU or PMU connector
J2
PMX 1 connector
J3
PMX 2 connector
J4 - J19
COLU HDSL connectors.
The wire-wrap posts are for the
HDSL.
J20
DB-25 (RS-232) connector
J21
LAN connector
J22
Frame Ground
P1 - P4
Telco connectors for 2-wire
subscriber circuits
P5
Telco connector for 4-wire subscriber
circuits
TB1
Seven-position power terminal strip