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LTC 4600 Series | Instruction Manual | Troubleshooting
6
TROUBLESHOOTING
Video Problems
Power Problems
Data Transmission
Problems
Power Problems
Power LED on the Power
Supply Fails to Light
Power LED on all Plug-in
Modules Fails to Light
Power LED on Individual
Plug-in Modules Fails to
Light
Bosch Security Systems | July 08, 2008
Video Links:
Verify that a valid video signal is being applied to the transmitter module.
Verify the integrity of the coax connections between devices and fiber modules.
Verify that the correct fiber cable is being used (i.e., multimode only).
Verify that the length of the fiber optic cable and associated splices do not exceed the allowable optical
loss budget.
Verify the power cable connections between modules and power pack.
Verify that the power pack is connected to the appropriate AC power source.
Data Links:
Verify the polarity of data connections between devices.
If data transmission is not working over the fiber link, verify that a direct connection between the
associated products operates correctly.
Verify the integrity of the data cable connections between devices and fiber modules.
Verify that the correct fiber cable is being used (i.e., multimode only).
Verify that the length of the fiber optic cable and associated splices do not exceed the allowable optical
loss budget.
When using LTC 4671 Series RS-485 modules, review the text regarding the usage of termination
resistor.
Verify power cable connections between modules and power pack.
Verify that the power pack is connected to the appropriate AC power source.
LTC 4637 Series Rack-mount Configurations:
Verify that the AC line cord is connected to an appropriate AC voltage source.
Check and/or replace the AC fuse located near the AC connector on the rear of the power supply.
Verify that the power supply cable to the circuit board back plane (located on the rear of the card cage) is
properly connected.
Verify that affected plug-in modules are properly seated onto the back plane 3-pin connector.
Verify that fuses on the affected plug-in modules are intact. If not, return for repair.
EN | 17
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