CT24 MCU
User Manual
20
9M02-7608-A001-EN
Version 2.0
, an additional processor status LED indicator is mounted on the MCU processor board and
may be viewed by removing the MCU front cover. This LED blinks orange if the receiver does not detect a
transmitter and green if valid messages are received. In addition, if the second processor detects a fault, this LED
blinks red.
Figure 7: MCU Status and Fault LEDs
4.1.1 Optional 9-36 VDC Input MCU
An optional 9-36 VDC input MCU, Part Number 1MCU-7608-A103, is available. This MCU is identical to the
standard MCU except that the power supply on the relay board is changed.