JRC JCY-1900 - Data Acquisition Unit: NCT-84

3. OPERATION CHECKING ON HARDWARE
JCY-1900
/
1950
V
DR Service Manual
65
DOC No. 7ZPNA4409
3.8. Data Acquisition Unit: NCT-84
Serial LAN Converter Board (CMH-2370) on the DAU has LEDs that display the following state.
1) POWER
The lighting specifications of the LEDs:
LED Name Lighting Specifications
[24V](Green) Lights when the DAU is supplied with power.
2) LAN
The lighting specifications of the LEDs:
LED Name Lighting Specifications
CH0:CD53
CH1:CD55(Green)
Lights when the LINK is established
Blinks at the time of receiving or sending data.
Lights or blinks continuously in normal operation
Check the wiring and the power source when it is off.
CH0:CD52
CH1:CD54(Green)
Lights when the LINK is established on 100BASE-T.
Off when the LINK is established on 10BASE-T.
Lights or off in normal operation.
CH1
CH0