Com port connector – Paradyne 9128-II User Manual
Page 360
C. Connectors, Cables, and Pin Assignments
C-4
April
2002
9128-A2-GB20-60
COM Port Connector
The following table provides the pin assignments for the 1-slot FrameSaver
SLV 9128 and 9126 unit’s 25-position EIA-232C communication port connector.
The following table shows the signals and pin assignments for the carrier-
mounted FrameSaver SLV 9128 NAM’s 8-position communication port
interface/connector.
Signal
Direction
Pin #
Shield (GND)
—
1
DCE Transmit Data (TXD)
From DTE ( In )
2
DCE Receive Data ( RXD)
To DTE ( Out)
3
DCE Request to Send ( RTS)
From DTE ( In )
4
DCE Clear to Send (CTS)
To DTE (Out )
5 *
DCE Data Set Ready (DSR)
From DTE ( In )
6*
Signal Ground ( SG)
—
7
DCE Carrier Detect ( CD)
To DTE ( Out)
8*
DCE Data Terminal Ready (DTR)
From DTE ( In )
20
* Pins 5, 6, and 8 are tied together.
Signal
Direction
Pin #
DCE Received Data ( RXD)
From DCE (Out )
2
Signal Ground ( SG)
To/From DCE
3
DCE Transmit Data (TXD)
To DCE ( In )
4
DCE Data Terminal Ready (DTR)
To DCE ( In )
5
DCE Carrier Detect ( CD)
From DCE (Out )
6
DCE Request to Send ( RTS)
To DCE ( In )
7