Karel DS200, Technical Reference And Installation Manual

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Operational Information:
The LEDs on the DCC Utility card and their functions have been explained below:
POWER: This LED is supposed to be continuously ON. If it flashes, then the DCC block must
be turned OFF and then back ON after 15-20 seconds.
DSP-A, DSP-B, DSP-C, DSP-D: These LEDs signify that the DSP unit is operational. They
are supposed to be blinking periodically.
10 RX, 10 TX / 100RX, 100TX: These are supposed to be flashing during data transmission
or reception over local area network (LAN).
CPU: It is supposed to blink periodically.
M/S (Master/Slave): This LED is supposed to be continuously ON, if the master DCC Utility
card is functional in the DCC Block.
LOCK: DCC This LED is supposed to be blinking periodically, if DCC is using external clock.
If does not blink periodically, then that signifies there is a problem with the external clock
signal.
HOLD: This LED is supposed to be continuously ON, if DCC is using its own clock signal.