Model 117A4 Carrier Installation Instructions | Installing a Single Carrier | |
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Single Carrier Installation Self Test
1A single carrier must always function as a control carrier. Wait a few seconds, then check the LED(s) on the right side of the Model 117A4 carrier.
Compare the OUT OF SYNC and CONTROL/EXPANSION LEDs against the top three lines on the “SYNC and CONTROL/EXP LED Codes” label.
2If the OUT OF SYNC LED is lit, power down, wait at least 15 seconds, and then repower the carrier. If the LED is still lit, call for Customer Support as described on the inside cover of this book.
| OF | SYNC |
| OUT |
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| CONTROL/ | |
4 | EXPANSION | |
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3Verify that the carrier’s CONTROL/EXPANSION LED is lit and that its color is green. This is correct for a
22 Issue 2 February 1999 | Model 117A4 Carrier Installation Instructions |