Db25 Adapter Pinouts; Db9 Adapter Pinouts - Paradyne HOTWIRE
8610 DSLAM Installation Instructions Manual

DB25 Adapter Pinouts

The DB25 (RS-232 male) cable adapter is used to convert the 8-pin modular serial
interface to a standard RS-232 DB25 interface, which can then be connected to a
terminal, computer, or any Data Termination Equipment (DTE). Connection to a modem
requires a null modem adapter. The following table lists the pin assignments.
8-Pin Modular
Serial Interface
Pin Number
1 1
2
2
3
4
5
6
7
8

DB9 Adapter Pinouts

The female DB9 cable adapter is used to convert the 8-pin modular serial interface to a
standard DB9 interface, which can then be connected to a laptop computer. The
following table lists the pin assignments.
8-Pin Modular
Serial Interface
Pin Number
1 1
2 2
3
4
5
6
7
8
Use
Pins 1 and 2 are Pins 1 and 2 are
shorted together
shorted together
Data Terminal Ready
Signal Ground
Receive Data
Transmit Data
Clear to Send
Request to Send
Use
Pins 1 and 2 are Pins 1 and 2 are
shorted together shorted together
Data Terminal Ready
Signal Ground
Receive Data
Transmit Data
Clear to Send
Request to Send
DB25
Interface Pin
Number
– –
20
7
3
2
5
4
DB9
Interface Pin
Number
– –
4
5
2
3
8
7
30
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99-16049a