Loopdrive – User and installation manual
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f. If you’re planning to proceed with installation of FIM modules on the loop, leave the SECONDARY output of
LDB disconnected. Go to next chapter for FIM installation instructions.
g. When loop is closed and all FIMs on the loop are working properly, connect the incoming loop cable to
SECONDARY output of LDB. Loop is now fully secured.
Picture 5. Complete Loopdrive installation diagram.
2.3. How to install FIMs on a loudspeaker line
Before you start connecting FIMs on the loop, make sure that LDB is connected to the rail and powered (see previous
chapter).
a. For most efficient installation make sure that LDB is in SERVICE MODE (blue MODE indicator blinking fast).
To put LDB into SERVICE MODE press SERVICE button for 10 seconds or use Sniffer PC application.
b. During SERVICE MODE LDB will show OPEN fault indication as long as the loop is not completely closed.
This is the correct indication, since the loop should be closed only at the final stage of installation, to make
sure that the entire course of the loop is complete.
NOTE:
When Loopdrive is in SERVICE MODE, audio signal from power amplifier is not transmitted to the loop.
c. Double check if the loudspeaker line cable is connected to the PRIMARY loop output of LDB and the
SECONDARY loop output of LDB is not connected.
d. LDB should indicate only OPEN fault. If SHORT fault is detected, fix it before FIM installation
e. Check if EOL switch on the FIM is in OFF position.
NOTE:
EOL switch should be in ON position only with EOL resistor connected to the termination of T-Branch line. Short circuits on T-Branch are
detected and isolated regardless the EOL monitoring switch.
f. Connect FIM to the loop cable on the PRIMARY side of LDB. Mind the cable polarity!
NOTE:
You can connect the loop cable to either A or B side of FIM, both sides are equal. Do not connect loop cable to T-Branch connector!
g. FIM will power up indicating charging process (blue slow blinking). Wait for FIM to enter SERVICE MODE
(blue fast blinking).
NOTE:
Brand new FIMs are delivered in FACTORY RESET state. In this state loop relays on FIM’s PCB should be in open position. FACTORY
RESET state for FIM is temporary. Soon after power up FIM should switch relays to closed position, making a “click” sound, confirming
correct relay operation.