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Pinouts

This section includes pinouts for the following devices:

Pinouts for the Tip/Ring Circuit Card

The wiring and pin diagram represents a typical tip/ring line connection. See Wiring and Pin Diagram for a Tip/Ring Circuit Card

Pinouts for Asynchronous Connections

See Pinout Connections for DTE or DCE Devices for a larger view of the pinout connections for terminal or printer adapters and modem adapters.

The following table lists the pinouts for the COM1 asynchronous port.
 
Table: COM1 Pinouts
Pin No.
Signal
Signal
1
Data Carrier Detect (DCD)
Input
2
Receive Data (RX)
Input
3
Transmit Data (TX)
Output
4
Data Terminal Ready (DTR)
Output
5
Signal Ground (GND)
Bidirectional
6
Data Set Ready (DSR)
Output
7
Request to Send (RTS)
Output
8
Clear to Send (CTS)
Input
9
Ring Indicator (RI)
Input

The MAP/100P Tip/Ring Consolidation Wiring and Pinouts table shows the numbering scheme for connecting the short modular cords provided with the tip/ring circuit cards to the tip/ring distribution panel.
 
Table: MAP/100P Tip/Ring Consolidation Wiring and Pinouts
From
To






50-Pin
Connector
Channel No.
Circuit Card No.
Jack No. or 356B No.
Pin No.
Jack No. or 356B No.
Pin No.
T or R
Pin No.
1
1
1
3
1
4
R1
1
1
1
4
1
5
T1
26
2
1
1
2
1
3
T2
27
1
1
5
1
6
R2
2
3
1
1
1
1
2
T3
28
1
1
6
1
7
R3
3
4
1
2
3
2
4
R4
4
1
2
4
2
5
T4
29
5
1
2
2
2
3
T5
30
1
2
5
2
6
R5
5
6
1
2
1
2
2
T6
31
1
2
6
2
7
R6
6
7
2
1
3
3
4
R7
7
2
1
4
3
5
T7
32
8
2
1
2
3
3
T8
33
2
1
5
3
6
R8
8
9
2
1
1
3
2
T9
34
2
1
6
3
7
R9
9
10
2
2
3
4
4
R10
10
2
2
4
4
5
T10
35
11
2
2
2
4
3
T11
36
2
2
5
4
6
R11
11
12
2
2
1
4
2
T12
37
2
2
6
4
7
R12
12
13
3
1
3
5
4
R13
13
3
1
4
5
5
T13
38
14
3
1
2
5
3
T14
39
3
1
5
5
6
R14
14
15
3
1
1
5
2
T15
40
3
1
6
5
7
R15
15
16
3
2
3
6
4
R16
16
3
2
4
6
5
T16
41
17
3
2
2
6
3
T17
42
3
2
5
6
6
R17
17
18
3
2
1
6
2
T18
43
3
2
6
6
7
R18
18
19
4
1
3
7
4
R19
19
4
1
4
7
5
T19
44
20
4
1
2
7
3
T20
45
4
1
5
7
6
R20
20
21
4
1
1
7
2
T21
46
4
1
6
7
7
R21
21
22
4
2
3
8
4
R22
22
4
2
4
8
5
T22
47
23
4
2
2
8
3
T23
48
4
2
5
8
6
R23
23
24
4
2
1
8
2
T24
49
4
2
6
8
7
R24
24
25
5
1
3
1
4
R25
1
5
1
4
1
5
T25
26
26
5
1
2
1
3
T26
27
5
1
5
1
6
R26
2
27
5
1
1
1
2
T27
28
5
1
6
1
7
R27
3
28
5
2
3
2
4
R28
4
5
2
4
2
5
T28
29
29
5
2
2
2
3
T29
30
5
2
5
2
6
R29
5
30
5
2
1
2
2
T30
31
5
2
6
2
7
R30
6
31
6
1
3
3
4
R31
7
6
1
4
3
5
T31
32
32
6
1
2
3
3
T32
33
6
1
5
3
6
R32
8
33
6
1
1
3
2
T33
34
6
1
6
3
7
R33
9
34
6
2
3
4
4
R34
10
6
2
4
4
5
T34
35
35
6
2
2
4
3
T35
36
6
2
5
4
6
R35
11
36
6
2
1
4
2
T36
37
6
2
6
4
7
R36
12
37
7
1
3
5
4
R37
13
7
1
4
5
5
T37
38
38
7
1
2
5
3
T38
39
7
1
5
5
6
R38
14
39
7
1
1
5
2
T39
40
7
1
6
5
7
R39
15
40
7
2
3
6
4
R40
16
7
2
4
6
5
T40
41
41
7
2
2
6
3
T41
42
7
2
5
6
6
R41
17
42
7
2
1
6
2
T42
43
7
2
6
6
7
R42
18
43
8
1
3
7
4
T43
19

8
1
4
7
5
R43
44
44
8
1
2
7
3
T44
45

8
1
5
7
6
R44
20
45
8
1
1
7
2
T45
46

8
1
6
7
7
R45
21
46
8
2
3
8
4
T46
22

8
2
4
8
5
R46
47
47
8
2
2
8
3
T47
48

8
2
5
8
6
R47
23
48
8
2
1
8
2
T48
49

8
2
6
8
7
R48
24
49
9
1
3
9
4
T49
1

9
1
4
1
5
R49
26
50
9
1
2
1
3
T50
27

9
1
5
1
6
R50
2
51
9
1
1
1
2
T51
28

9
1
6
1
7
R51
3
52
9
2
3
2
4
T52
4

9
2
4
2
5
R52
29
53
9
2
2
2
3
T53
30

9
2
5
2
6
R53
5
54
9
2
1
2
2
T54
31

9
2
6
2
7
R54
6
55
10
1
3
3
4
T55
7

10
1
4
3
5
R55
32
56
10
1
2
3
3
T56
33
56
10
1
5
3
6
R56
8
57
10
1
1
3
2
T57
34

10
1
6
3
7
R57
9
58
10
2
3
4
4
T58
10

10
2
4
4
5
R58
35
59
10
2
2
4
3
T59
36

10
2
5
4
6
R59
11
60
10
2
1
4
2
T60
37

10
2
6
4
7
R60
12
61
11
1
3
5
4
T61
13

11
1
4
5
5
R61
38
62
11
1
2
5
3
T62
39

11
1
5
5
6
R62
14
63
11
1
1
5
2
T63
40

11
1
6
5
7
R63
15
64
11
2
3
6
4
T64
16

11
2
4
6
5
R64
41
65
11
2
2
6
3
T65
42

11
2
5
6
6
R65
17
66
11
2
1
6
2
T66
43

11
2
6
6
7
R66
18
67
12
1
3
7
4
T67
19

12
1
4
7
5
R67
44
68
12
1
2
7
3
T68
45

12
1
5
7
6
R68
20
69
12
1
1
7
2
T69
46

12
1
6
7
7
R69
21
70
12
2
3
8
4
T70
22

12
2
4
8
5
R70
47
71
12
2
2
8
3
T71
48
71
12
2
5
8
6
R71
23
72
12
2
1
8
2
T72
49

12
2
6
8
7
R72
24

Pinouts for Connections from the ACCX Circuit Card

The following table provides pinout and signal information for RS-232 connections from the ACCX circuit card.
 
Table: RS232 Signals, Connections, and Pinouts
Signal
Name
Description
Pin No.
To or From
ACCX Circuit Card
AA
Protective GND
1
—
BB
Signal GND
7
—
BA
Transmit Data
2
From
BB
Receive Data
3
To
CA
RequesttoSend
4
From
CB
CleartoSend
5
To
CC
DataSetReady
6
To
CD
DataTerminalReady
20
From
CE
Ring Indicator
22
To
CF
Carrier Detect
8
To
DA
Terminal Timing
24
From
DB
Transmit Timing
15
To
DD
Receive Timing
17
To

The following table provides pinout and signal information for DCP connections from the ACCX circuit card.


 

Note: Pins 1, 4, 7–25, 26, 29, and 32–50 are not used.


 
Table: 50Pin DCP Cable Termination Pin Assignments
Pin No.
Lead
Description
27
TXR0
DCP port 0 transmit signal ring side
28
RXR0
DCP port 0 receive signal ring side
30
TXR1
DCP port 1 transmit signal ring side
31
RXR1
DCP port 1 receive signal ring side
2
TXT-0
DCP port 0 transmit signal tip side
3
RXT-0
DCP port 0 receive signal tip side
5
TXT-1
DCP port 1 transmit signal tip side
6
RXT-1
DCP port 1 receive signal tip side

Pinouts for the RS-232 Null Modem

See the table below for information for the RS-232 null modem.


 
Table: RS-232 Null Modem Pin Assignments
Pin Number
Lead
Corresponding Lead
Pin Number
1
PG
PG
1
7
SG
SG
7
2
TD
RD
3
3
RD
TD
2
20
DTR
DSR
6
6
DSR
DTR
20
4
RTS
CTS
5
8
CD
RTS
4
4
RTS
CTS
5
4
RTS
CD
8
1
PG
PG
1
7
SG
SG
7
2
TD
RD
3

Pinouts for the LAN Crossover Cable

See Pinouts for LAN Crossover Cable.

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