Com Port Connector - Paradyne 7123 User Manual

COM Port Connector

The following table provides the pin assignments for the DSU/CSU's 25-position
EIA-232-C communication port connector.
7123-A2-GB20-00
Signal
Shield (GND)
DCE Transmit Data (TXD)
DCE Receive Data (RXD)
DCE Request To Send (RTS)
DCE Clear To Send (CTS)
DCE Data Set Ready (DSR)
Signal Ground (GND)
DCE Carrier Detect (CD)
DCE Data Terminal Ready (DTR)
* Pins 5, 6, and 8 are tied together.
September 2001
C. Connectors, Cables, and Pin Assignments
Direction
—
From DTE (In)
To DTE (Out)
From DTE (In)
To DTE (Out)
From DTE (In)
—
To DTE (Out)
From DTE (In)
Pin #
1
2
3
4
5 *
6 *
7
8 *
20
C-3