6. Label the installed cables according to the instructions in Attaching an L-Shaped Label.
• Install an AISG multi-wire cable that is configured with an AISG extension cable.
1. Use an M3 flat-head screwdriver to loosen the screws on the dustproof cap on the RET port
and remove the dustproof cap.
2. Link the waterproofed DB9 connector at one end of the AISG multi-wire cable to the RET
port on the RRU bottom, and link the other end to the standard AISG male connector of the
AISG extension cable, as shown in Figure 2.
Figure 2 Installing an RRU AISG multi-wire cable
3. Use an M3 Phillips screwdriver to tighten the posts on both sides of the waterproof DB9
connector to 0.4 N·m (3.54 lbf·in.).
4. Connect the other end of the AISG extension cable to the standard AISG male connector on
the RCU, as shown in Figure 3.
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