Multi-Pin Connector Terminal Assignment
Contact assignment of multi-pin connector part A
1 - Telephone muting (UHV)
2 - Voltage supply for the information display control head
3 - Activation wire for the information display control head
4 - Not Assigned
5 - Signal power On
6 - Reset for the information display control head
7 - Ring break diagnostic line
8 - Not Assigned
Contact Assignment of Multi-Pin Connector Part B
9 - Telephone ON signal
10 - RX protocol from the information display control head
11 - TX protocol to the information display control head
12 - Power Supply Terminal 31
13 - SNDREQ signal from telephone baseplate
14 - Reset for the information display control head
15 - Power supply, terminal 30
16 - Ground for the information display control head
Contact Assignment of Multi-Pin Connector Part C
17 - Not Assigned
18 - Microphone 2 input, positive
19 - Microphone, negative
20 - VICS TX
21 - CVBS 2 input, negative
22 - ETC. TX
23 - Not Assigned
24 - Microphone 1 input, positive
25 - Microphone, negative
26 - VICS RX
27 - CVBS 2 input, positive
28 - ETC. RX
Contact Assignment of Multi-Pin Connector Part D
29 - AUX signal input, negative
30 - AUX signal input, right
31 - USB (+ 5V)
32 - USB, negative
33 - Not Assigned
34 - Detect
35 - AUX signal input, left
36 - AUX signal input, shielding
37 - CVBS 3 input, positive
38 - CVBS 3 input, negative
39 - iPod data RX
40 - iPod data TX