Batboard

Hello to all, I'm trying to figure out the PIN configuration on a CDM 1550 for the MIC Socket, so far I think I have=

PIN 3 Hub or Hook
PIN 4 Ground
PIN 5 MIC High
PIN 6 PTT
PIN 7 MIC Low

Is this right? Thanks

From the front side of the CDM, the pins are(left to right):
9-8-7-6-5-4-3-2-1-10

10 is analog input 2
9 is Analog input 3
8 is handset audio
7 is SCI bus +
6 is PTT/IRDecoder
5 is mic hi
4 is ground
3 is hook
2 is +5V
1 is filtered A+

So your mic connects between pin 5 and 4.