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BACKPLANE
23-13
Figure 23-16 TELEPHONE TERMINAL BLOCK LAYOUT
RXS- (WHT/BLU)
NOT USED PIN NUMBERS
26
RXS+ (BLU/WHT)1
TXS- (WHT/ORN)27
TXS+ (ORN/WHT)2
EB (WHT/GRN)28
EA (GRN/WHT)3
MB (WHT/BRN)29
MA (BRN/WHT)4
RXA- (RING) (WHT/SLT)30
RXA+ (TIP) (SLT/WHT)5
TXA- (RED/BLU)31
TXA+ (BLU/RED)6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25
RXS- (RED/ORN)
RXS+ (ORN/RED)
TXS- (RED/GRN)
TXS+ (GRN/RED)
EB (RED/BRN)
EA (BRN/RED)
MB (RED/SLT)
MA (SLT/RED)
RXA- (RING) (BLK/BLU)
RXA+ (TIP) (BLU/BLK)
TXA- (BLK/ORN)
TXA+ (ORN/BLK)
RXS- (BLK/GRN)
RXS+ (GRN/BLK)
TXS- (BLK/BRN)
TXS+ (BRN/BLK)
EB (BLK/SLT)
EA (SLT/BLK)
MB (YEL/BLU)
MA (BLU/YEL)
RXA- (RING) (YEL/ORN)
RXA+ (TIP) (ORN/YEL)
TXA- (YEL/GRN)
TXA+ (GRN/YEL)
RXS- (YEL/BRN)
RXS+ (BRN/YEL)
TXS- (YEL/SLT)
TXS+ (SLT/YEL)
EB (VIO/BLU)
EA (BLU/VIO)
MB (VIO/ORN)
MA (ORN/VIO)
RXA- (RING) (VIO/GRN)
RXA+ (TIP) (GRN/VIO)
TXA- (VIO/BRN)
TXA+ (BRN/VIO)
NC (VIO/SLT)
NC (SLT/VIO)
1
2
1
2
1
2
26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25
(RING) AND (TIP) DENOTE TELEPHONE LINE CONNECTIONS TO THE TIM.
1
2
1
2
AUDIO OUTPUT FROM THE CIM SUMMATION BOARDS FOR THE RECORDING
SYSTEM ARE THE MA AND MB CONNECITONS.