Terminal 15 Wake-Up Signal Faults

Terminal 15 Wake-up Signal Faults
The IBS recognizes wake-up line faults. The IBS can detect a wake-up line error under the following conditions:
^ DME "ON"
^ Terminal 15 ON (voltage high at IBS)
^ Terminal 15 running via BSD
If Terminal 15 at the IBS and Terminal 15 via the BSD are not equal, a fault is indicated in the BSD line or an IBS Fault.
The IBS fault may be caused by:
^ Terminal 15 Driver in the IBS has a short to ground
^ Terminal 15 Driver in the IBS has a short to B+ or is defective.