Bosch Appliances LTC 4600 6TROUBLESHOOTING, En, Bosch Security Systems July, Video Links

LTC 4600 Series Instruction Manual Troubleshooting EN 17

6TROUBLESHOOTING

	Video Links:
Video Problems	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.
Power Problems	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:
Data Transmission	Verify the polarity of data connections between devices.
Problems	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.
Power Problems	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:
Power LED on the Power	Verify that the AC line cord is connected to an appropriate AC voltage source.
Supply Fails to Light	Check and/or replace the AC fuse located near the AC connector on the rear of the power supply.
Power LED on all Plug-in	Verify that the power supply cable to the circuit board back plane (located on the rear of the card cage) is
Modules Fails to Light	properly connected.
Power LED on Individual	Verify that affected plug-in modules are properly seated onto the back plane 3-pin connector.
Plug-in Modules Fails to	Verify that fuses on the affected plug-in modules are intact. If not, return for repair.
Light

Bosch Security Systems July 08, 2008