Northern Telecom Meridian SL-1 Installation Manual page 26

2-18 Installation and connections
Chart 2-2 Continued
QSD66 OR QSD69 EXPANSION SHELF INSTALLATION
STEP PROCEDURE
12 Reinstall the two cabinet side panels by sliding them down in the grooves located in the
uprights at each end of the cabinet. The flange on the side panels should be positioned
at the top facing towards the inside of the cabinet.
13 Set the new shelf on top of the existing shelf with both ends overlapping the joiner
plates.
14 Install a spacer between the bottom front rail of the new shelf and the top front rail of
the existing top shelf as follows (Fig. 2-6):
• Tilt the new shelf slightly backwards.
• Position the spacer bar with the cut-out on the left and facing outward (Fig. 2-6) in
the groove along the top front of the existing shelf.
• Lower the new shelf onto the spacer bar with the top rail of the bar in the groove in
the bottom of the new shelf.
15 Align the new shelf with the existing shelf and secure the joiner plates with two screws
each.
16 If equipped, remove EMI shield from shelf.
17 Connect power connector from QCAD276 or QCAD277 power cable to connector J on
the shelf backplane according to shelf position in the cabinet (Fig. 2-7).
• Connector PE2 from QCAD276 cable connects to backplane in position 2.
• Connector PE3 from QCAD276 cable connects to backplane in position 3.
• Connector PE4 from QCAD277 cable connects to backplane in position 4.
• Connector PE5 from QCAD277 cable connects to backplane in position 5.
18 If not previously connected, connect the other end of the power cable as follows:
a) QCAD276 power cable.
• Connector P3 to J3 at the rear of the QUAA3 power unit.
• Black leads equipped with ring connections to the GRD2 lug on the ground bus near
the rear of the QUAA3 unit.
Appendix 1 to 553-2601-200
Chart Continued