Installation Note N5222-90131 51
Description of the Upgrade
Installation Procedure for the Upgrade
Step 33. Reconnect/Connect and Route Low Frequency Extension
(LFE) Cables (8120-5014 (x2) and 8120-5017 (x3)) and the Other Ends
of the Cables Connected to the IF Multiplexer (IF MUX) Board
1. Reconnect/connect and route the 8120-5014 (x2) and 8120-5017 (x3)
cables and connect the N5240-60089 MB/IF MUX/LFE/TSMB ribbon cable
as shown on the IF MUX board (items
➀ through ➄). You will connect the
other ends of the IF gray cables later on the process. Refer to Figure 30.
Figure 30 Connecting and routing the gray cables on the IF MUX board (8120-5014 (x2)
and 8120-5017 (x3))
The 8120-5014 (x1) cable connection that was connected at P604 is now
connected on P404. The new 8120-5017 cable is used for the P604
connection on the IF multiplexer (IF MUX) board. Refer to Figure 30.
When connecting the IF gray cables, be careful to look for the correct
connector labels on the IF multiplexer (IF MUX) board.
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