Bosch PRAESENSA Installation Manual page 28

28 en | Troubleshooting
6.2.2 Short on T-Branch
If T‑Branch is shorted, both A and B indicators will blink fast orange alternately. Both relays of
the FIM are open, creating an interruption in the loop. T‑Branch is isolated from the loop.
See PRA-LIM (FIM) Indicators, buttons and connections, page 11 .
Possible solution
Remove the short‑circuit from the T‑Branch. When the problem is fixed, the fast blinking
indication on FIM will turn slow. Now you can reset FIM to QUIESCENT mode, where both A
and B relays are closed. To reset FIM:
1.
2.
2021.07.28 | V1.00 |
Push RESET button on the FIM module. Or,
send REMOTE FIM RESET command by pressing RESET button on LDB for 10 seconds or
via Sniffer application.
Installation manual
Loudspeaker line isolator system
Bosch Security Systems B.V.