CTI Products MCN RCD System Overview - Manual (Page 44)

MCN System Manual Troubleshooting
CTI Products, Inc.
68-10833-120
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11. Troubleshooting
Below is a table listing some common problems encountered with MCN modules.
If , after using this diagnostic table, you still have a problem, check the module’s
hardware reference manual to see if there are any other troubleshooting guides
that are specific to the module.
PROBLEMS CAUSES
PWR LED is off If using a power supply, make sure it is plugged into the DC IN port
of the module. Also, make sure the power supply is plugged into the
wall outlet.
If power is being supplied over the network cable, make sure that the
network cable is properly connected between NETWORK OUT
ports and NETWORK IN ports as specified in section 7.4.
PWR LED is blinking This indicates low voltage. Plug a power supply directly into the DC
IN port and see if the PWR LED stops blinking. If so, make sure
that the system’s power distribution requirements are met as stated
in section 7.5.
ERR LED is blinking Reset the module. If LED still blinks, call CTI Products’ customer
support.
ERR LED is on Verify that the module’s Group and Module numbers are valid
(refer to section 7.1). Correct them if necessary, then press the reset
button.
Verify that the option switches are set properly. Refer to the
module’s hardware reference manual for a description of the option
switches. Correct them if necessary, then press the reset button.
ACT LED is off Verify that the module’s Group and Module numbers were properly
assigned and set.
Check the network cables and make sure they are fully inserted into
the receptacle.
Make sure that the terminators are installed (refer to section 7.4).
Note: The ACT LED of the HIB module will only blink if a PC that
is running the MCN Remote Comparator Display runtime software
is running and a screen configuration file is loaded.