LAWO mc256 MKII, Техническое руководство

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mc²56 MKII Technical Manual V5.10.2/1 287
Chapter 4: Service/Maintenance
Control Surface
3. Remove all of the connectors from the local I/O carrier, in the order described below, taking notes on
where each one should be fitted:
Local I/O (side view)
a. Disconnect the power connector from the backplane, and open the clamp to release the cable.
b. Disconnect the master connector - either MADI (optical SC) or RAVENNA (CAT5 RJ45). The connector
type depends on the version of your local I/O board.
Note that on the 958/55 MADI board, the 9-pin D-Sub and BNC are unused. On the 958/50 RAVENNA board,
the master cable connects to the left-hand RJ45 socket, while the right hand RJ45, BNC and SFP cage are
unused.
958/55 MADI 958/50 RAVENNA
c. Disconnect all of the I/O cables by unlocking and removing each D-Sub connector. The numbers beside
the connectors correspond to the ribbon cable labelling. The following reference diagram can be found on the
cable duct to the right of the local I/O:
Start with the two upper 37-pin D-Subs (2 & 3); then the two lower 37-pin D-Subs (1 & 4); then the 50-pin GPIO
D-Sub (6); the four 15-pin D-Subs (1, 2, 5 & 3); and finally the 37-pin PHONES D-Sub (no number, it is the only
rounded connector).