Northern Telecom Meridian SL-1 Reference Manual page 27

Chart 3-7 (continued)
Power distribution cable replacement
St ep Pr oced ur e
3 Perform this step only if the power distribution cable for the third tier
is being replaced.
a) Disconnect connector P4 and P7 from the rear of the QUAA3
unit.
b) Disconnect red and blue wires from terminals 4 and 5 of TB5 at
the rear of the QUX20 unit.
c) Disconnect the black and white wires from the distribution cable
to the GRD2 and GRD1 connections on the ground bus at the
rear of the cabinet.
d) Disconnect connectors PE4 and PE5 from the PE shelf
backplane.
e) Connect connectors PE4 and PE5 of the replacement
distribution cable to the PE shelf backplane J connectors and
connectors P4 and P7 to J4 and J7 at the rear of the QUAA3
unit.
f) Connect the white and black wires equipped with ring
connectors to GRD1 and GRD2 terminals on the ground bus.
g) Connect the red and blue wires to terminals 4 and 5 of TB5 at
the rear of the QUX20 unit.
4 Reconnect all cables previously disconnected.
5 Set the CAB INP breaker on the QUX19 unit to ON.
2-Mb/s Remote Peripheral Equipment
Equipment replacement 3-13
Appendix 1 to 553-2741-500