Service manual

BACKPLANE
8-4
March 2000
Part No. 001-3139-502
Figure 8-1 BACKPLANE WIRING DIAGRAM
RMM RXD- 9600 BAUD
RMM RXD+ 9600 BAUD MODEM
RMM RXA- 1200 BAUD
RMM RXA+ 1200 BAUD DIRECT
N/C GND
N/C RxD1
N/C GND
N/C TxD1
32
31
30
29
28
27
26
25
24
23
22
21
64
63
62
61
60
59
58
57
56
55
54
53
21
22
23
24
25
26
27
28
29
30
31
32
53
54
55
56
57
58
59
60
61
62
63
64
J1
P1
4
3
2
1
4
3
2
1
8
7
6
5
J1
P1
4
3
2
1
4
3
2
1
8
7
6
5
P1
P1
J1 J1
4
3
2
1
4
3
2
1
8
7
6
5
4
3
2
1
4
3
2
1
8
7
6
5
RVM9 -
RVM9 +
RVM10 -
RVM10 +
RVM7 -
RVM7 +
RVM8 -
RVM8 +
RVM5 -
RVM5 +
RVM6 -
RVM6 +
RVM3 -
RVM3 +
RVM4 -
RVM4 +
RVM1 -
RVM1 +
RVM2 +
RVM2 -
CDM
1
2
3
4
5
6
7
8
9
10
11
12
P14
1
2
3
4
5
6
7
8
9
10
11
12
P15
RVM
P15
12
11
10
9
8
7
6
5
4
3
2
1
P14
12
11
10
9
8
7
6
5
4
3
2
1
MLM AUDIO+
MLM AUDIO-
MLM TX DATA+
MLM TX DATA-
RDM1-
RDM1+
RDM2-
RDM2+
RDM3-
RDM3+
RDM4-
RDM4+
CDM1+
CDM1-
CDM2+
CDM2-
CDM3+
CDM3-
CDM4+
CDM4-