Radio - R- Connector Assignment, MMI, Through 11 / 03 / 2008.

Radio -R- 

Fig 1: Identifying Radio -R-, Pins

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1. Antenna Amplifier 3 -R112- HF Connection (White)
2. IF (yellow) connection to Antenna Amplifier 3 -R112-
3. MOST Bus
4. 8-Pin Multi-Pin Connector (T8m)

3 - MOST Bus 

Fig 2: 2 - MOST Bus

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1. Input
2. Output

4 - 8-Pin Multi-Pin Connector (T8m) 

Fig 3: 1 - 8-Pin Connector -T8g-

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1  - Terminal 31

2  - Terminal 30

5  - Ring-break Diagnostic Cable