Nortel Meridian 1 Manual page 983

13 On DC-powered ST systems using a QBL15 Battery Distribution Box,
perform these steps:
— On the ST system, remove the wire between terminal 5 (DC ON)
on terminal board TB4 of the QRF12 rectifier and terminal 3 on
terminal board TB2 of the QUX19 breaker assembly.
— Install the NT8D46AT cable from J4 of the system monitor to the
terminal area in the QBL15.
— Connect the brown wire of the NT8D46AT cable to terminal 6
(TRIP) on terminal board TB2 in the QBL15. Connect the orange
wire to terminal 5 (ALARM). Refer to Figure 13-7.
Note: The QCA136 cabinet does not require a TRIP wire to be
connected to the QBL15.
— Run an AWG 22 wire from terminal 5 (DC ON) on terminal board
TB4 of the QRF12 rectifier to the QBL15.
— Install an A0290890 connector contact on the end of the AWG 22
wire inside the QBL15. Insert the contact into pin 1, 2, or 3 of the
NT8D86 system monitor cable.
— Attach the DCON label to the AWG 22 wire.
— Attach the strain-relief clip to a clean surface inside the QBL15
near the terminal boards. Secure the NT8D46AT cable under the
strain-relief clip.
14 Unplug connector P5 of the existing harness from connector J5 on the
rear of the QUAA3 Power Unit.
15 Install connector P5 of the NT8D46BA cable into connector J5 on the
rear of the QUAA3 Power Unit.
16 Install connector J5 of the NT8D46BA cable into connector P5 of the
existing harness.
17 Install connector ALM1 into the filter connector (P0678258) located in
one of the three horizontal cutouts located at the bottom rear of the
QCA136 cabinet.
18 Loosen screws REMA and REMB on terminal block TB2 of the QUX19
Power Distribution Unit.
Upgrade system installation Upgrading to Meridian 1 system options
System monitor upgrade installation 13-19