2-26
Using Your Device
Using the YLR-Series
Rear Panel: 7-pin and 24-pin Connectors
There are two connectors on the rear panel of chassis: 7-pin and 24-pin. Figure 2-13
on page 2-27 shows the connections to 24-pin connector. Figure 2-14 on page 2-28
shows the connections to the 8-pin connector.
The two Interlock contacts ILK1 and ILK2 are connected between pins 1-4 and 2-3.
The Keyswitch is connected between pins 8 and 9. This switch should be closed to
power system up in Remote Control Mode. The Start button is connected between
pins 10 and 11. When closed it starts system in Remote Control Mode.
There is an isolated RS-232 interface (signals on pins 5 and 6 are referenced to return
on pin 7). Two isolated analog signals on pins 12 and 13 are referenced to analog
return on pin 14. Two differential modulation signals on pins 15 and 16 are also
isolated. The control and diagnostic signals on pins 17-19 and pins 21-24 are
referenced to return on pin 20 and are isolated.
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