Installation Guide

Installing the iRM4451
iRM4451 RRH Product Description and Installation Guide 6-9
To connect grounding cable:
1. Fasten the dual-hole grounding lug and cable assembly to the iRM4451 chassis
grounding posts using two (2) M5-0.8 screws and washers (supplied by Operator).
See Figure 6-18.
Figure 6-18 Connecting the grounding cable
2. Tighten the bolts to 2.4 ft-lb (3.2 Nm) using a torque screwdriver.
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6.1 Connecting the RET cables
This section provides the procedure for connecting the RET cable to the RET
connector socket.
To connect RET cable:
1. Insert RET cable into keyed 8-pin RET socket on iRM4451.
2. Twist the ferrule of the RET connector clockwise until it audibly ‘clicks’ into the
l
ocked position.
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6.
6.1 Connecting the GigE optical fronthaul cables
This section provides the procedure for connecting the GigE optical fronthaul cable to
the F1 or FH2 SFP connector sockets.