The MIC-C/T/P card provides connection for one of the two possible redundant power supply inputs. It also provides connection for system management serial port, system management LAN port, modem port, and system timing inputs and outputs. Its position is in slot 24 in the center of the ONS 15454 SDH subrack EFCA area.
The MIC-C/T/P card has a pair of LEDs, located on the RJ45 LAN connector. The green LED is illuminated when a link is present, and the yellow LED is illuminated when data is being transferred.