Pcm Input Codes: Notes

PCM INPUT selection provides testing of switches that input to PCM. Input status is shown on display as HI or LO. Input cycle status is shown as "0" until PCM sees input cycled from LO to HI, or HI to LO since selected input was first displayed. After PCM has seen input cycle, status then changes from "0" to "X", indicating input being tested has cycled and passed the input test.