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TELEPHONE INTERFACE MODULE (TIM)
14-5
Figure 14-2 E&M INTERFACE CONNECTIONS
14.2.3 8-POSITION DIP SWITCH S201
The 8-position DIP switch S201 determines the
interface type. There are five types of E&M interface
signaling, Type I through Type V.
C A U T I O N
Do not adjust S201 with the E&M card connected in
any way to the Switch. Damage to the E&M card
could result.
Refer to Table 14-1 for S201 configurations for
each type of signaling.
NOTE: S201 positions 7 and 8 are for E-Lead detec-
tion type.
Figure 14-3 S201
NOTE: Black is switch position
.
22
23
24
25
26
27
28
29
30
31
32
20
19
16
15
64
63
62
61
60
59
57
56
55
54
53
52
51
48
47
21
43
44
45
46
11
12
13
14
133
34
35
36
37
38
39
40
41
42
2
3
4
5
6
7
8
9
10
58
49
50
17
18
S1, P4
S1, P3
S1, P2
S1, P1
+5V
+12V
-12V
-48V
MAS SYNC
MAS CLK
TX PCM
RX PCM
CSB DATA
IDB DATA
IDB IDLE
VTM PCM
CSB IDLE
ALM +
ALM -
1
2
3
4
5
6
7
8
TXS+
TXS-
MA
MB
TXA+
TXA-
8
7
6
5
4
3
2
1
RXS+
RXS-
EA
EB
RXA+
RXA-
CSB IDLE
VTM PCM
IDB IDLE
IDB DATA
CSB DATA
RX PCM
TX PCM
MAS CLK
MAS SYNC
-48V
-12V
+12V
+5V
SEC TX PCM
SEC RX PCM
S1, P8
S1, P7
S1, P6
S1, P5
SB
SG
M-LEAD
E-LEAD
TX+
TX-
RX+
RX-
Table 14-1 E&M CARD S201 DIP SWITCH
SETTINGS
Type Position
12345678
I
On Off On On On Off Off On
II
Off On Off On Off Off Off On
III
OffOnOnOnOnOffOffOn
IV
Off On Off On Off Off Off On
V
Off Off On Off Off On Off On