Operation | Service |
Connect one end of the test cable to the appropriate SEND connector and the other end to the mating RECEIVE connector. Turning the
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rotary switch from the OFF position will send current to one of the SEND LED indicators and to the same contact on the SEND connector. The current flows through the cable and into the RECEIVE connector and will light the corresponding RECEIVE LED in a cable wired to the same contact at each end. For cables wired pin to pin, rotating through all of the positions should light only SEND and RECEIVE LEDs for the conductor that the switch is testing. Cables with shorted conductors will light additional SEND and RECEIVE LEDs identifying which wires the
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conductor being tested is shorted to. Cables with open conductors will light only the SEND LED. Combinations of shorts and opens will light patterns of LEDs that can identify the fault conditions within the cable. The SC48 can also identify custom wiring configurations.
CASE SCREWS
Removing the six case screws provides access to the 9 Volt battery compartment. The battery should be changed when the SEND LED becomes dim.
