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## Related Documentation

- CTP150 Console Cable Pinouts
- CTP Fast Ethernet and Power Cables

# CTP150 Interface Module HD-26 Connector Cable Pinouts

The CTP150 device has five separate EIA-530 cabling options for the serial interface module, with a male HD-26 connector on the module end and the following connectors on the DCE or DTE end:

- Female DB-25 connector on the DCE end for EIA-530/RS-422/V.11, RS-232/V.24, V.35
- Male DB-25 connector on the DTE end for EIA-530/RS-422/V.11, RS-232/V.24, V.35
- Female DB-15 connector on the DCE end for X.21
- Male DB-15 connector on the DTE end for X.21
- RJ-45 connector for Radio V.24 Sync interface

The pinouts for these connections have different configurations for EIA-530, RS-232, voice, and T1 interface signals.

## EIA-530 Connector Interface Signal Pinouts (DB-25 Female DCE)

Table 1 lists the EIA-530 interface signal pinouts for the HD-26 connector to the female DB-25 connector for the CTP150 platform.

Table 1: EIA-530 Connector Interface Signals for HD-26 to Female DB-25

HD-26 Pin | DB-25 Pin | Description | Circuit
--- | --- | --- | ---
1 | 3 | Receive data (RD)—A | BB
2 | 17 | Receive timing (RT)—A | DD
3 | 15 | Send timing (ST)—A (DCE) | DB
4 | 24 | Transmit timing (TT)—A (DTE) | DA
5 | 2 | Send data (SD)—A | BA
6 | 8 | Data carrier detect (DCD)—A | CF
7 | 6 | Data set ready (DSR)—A | CC
8 | 5 | Clear to send (CTS)—A | CB
9 | 13 | Clear to send (CTS)—B | CB
10 | 19 | Request to send (RTS)—B | CA
11 | 4 | Request to send (RTS)—A | CA
12 | 20 | Data terminal ready (DTR)—A | CD
13 | 18 | Local loopback (LL) | LL
14 | 16 | Receive data (RD)—B | BB
15 | 9 | Receive timing (RT)—B | DD
16 | 12 | Send timing (ST)—B (DCE) | DB
17 | 11 | Transmit timing (TT)—B (DTE) | DA
18 | 14 | Clear to send (CTS)—B | BA
19 | 10 | Data carrier detect (DCD)—B | CF
20 | 22 | Data set ready (DSR)—B | CC
21 | 21 | Remote loopback (RL) | RL
22 | 25 | Test mode (TM) | TM
23 | — | — | —
24, 26 | 7 | Signal ground (GND) | Ground
25 | 23 | Data terminal ready (DTR)—B | CD

## EIA-530 Connector Interface Signal Pinouts (DB-25 Male DTE)

Table 2 lists the EIA-530 interface signal pinouts for the HD-26 connector to the male DB-25 connector for the CTP150 platform.

Table 2: EIA-530 Connector Interface Signals to Male DB-25

HD-26 Pin | DB-25 Pin | Description
--- | --- | ---
1 | 2 | Transmit data—A
2 | 24 | Transmit timing—A (DTE)
3 | 15 | Send timing—A (DCE)
4 | 17 | Receive timing—A
5 | 3 | Receive data—A
6 | 8 | Data carrier detect—A
7 | 20 | Data terminal ready—A
8 | 4 | Request to send—A
9 | 19 | Request to send—B
10 | 13 | Clear to send—B
11 | 5 | Clear to send—A
12 | 6 | Data set ready—A
13 | 18 | Local loopback
14 | 14 | Transmit data—B
15 | 11 | Transmit timing—B (DTE)
16 | 12 | Send timing—B (DCE)
17 | 9 | Receive timing—B
18 | 16 | Receive data—B
19 | 10 | Data carrier detect—B
20 | 23 | Data terminal ready—B
21 | 25 | Test mode
22 | 21 | Remote loop
23 | — | —
24, 26 | 7 | Ground
25 | 22 | Data set ready—B

## X.21 Connector Interface Signal Pinouts (DB-15 Female DCE)

Table 3 lists the X.21 interface signal pinouts for the HD-26 connector to the female DB-15 connector for the CTP150 platform.

Table 3: X.21 Connector Interface Signals for HD-26 to Female DB-15

HD-26 Pin | DB-15 Pin | Description
--- | --- | ---
1 | 4 | Receive—A
2 | 6 | Signal timing—A
3 | — | —
4 | 7 | Byte timing—A
5 | 2 | Transmit—A
6 | — | —
7 | — | —
8 | 5 | Indication—A
9 | 12 | Indication—B
10 | 10 | Control—B
11 | 3 | Control—A
12 | — | —
13 | — | —
14 | 11 | Receive—B
15 | 13 | Signal timing—B
16 | — | —
17 | 14 | Byte timing—B
18 | 9 | Transmit—B
19 | — | —
20 | — | —
21 | — | —
22 | — | —
23 | — | —
24, 26 | 8 | Ground
25 | — | —

## X.21 Connector Interface Signal Pinouts (DB-15 Male DTE)

Table 4 lists the X.21 interface signal pinouts for the HD-26 connector to the male DB-15 connector for the CTP150 platform.

Table 4: X.21 Connector Interface Signals for HD-26 to Male DB-15

HD-26 Pin | DB-15 Pin | Description
--- | --- | ---
1 | 2 | Transmit—A
2 | 7 | Byte timing—A
3 | — | —
4 | 6 | Signal timing—A
5 | 4 | Receive—A
6 | — | —
7 | — | —
8 | 3 | Control—A
9 | 10 | Control—B
10 | 12 | Indication—B
11 | 5 | Indication—A
12 | — | —
13 | — | —
14 | 9 | Transmit—B
15 | 14 | Byte timing—B
16 | — | —
17 | 13 | Signal timing—B
18 | 11 | Receive–B
19 | — | —
20 | — | —
21 | — | —
22 | — | —
23 | — | —
24, 26 | 8 | Ground
25 | — | —

## V.24 Connector Interface Signal Pinouts (RJ-45 Male)

Table 5 lists the V.24 interface signal pinouts for the HD-26 connector to the male RJ-45 connector for the CTP150 platform.

Table 5: V.24 Connector Interface Signals for HD-26 to RJ-45

HD-26 Pin | RJ-45 Pin | Description
--- | --- | ---
1 | 5 | TX
2 | 1 | RCLK
3 | 3 | TCLK
5 | 6 | RX
6 | 2 | CD
8 | 7 | CTS
11 | 8 | RTS
24, 26 | 4 | GND

## Related Documentation

- CTP150 Console Cable Pinouts
- CTP Fast Ethernet and Power Cables

#### Published: 2011-01-31

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