Model 9783 com port connector, Model 9720 and 9788 com port connector – Paradyne 9788 User Manual
Page 309
E. Connectors, Cables, and Pin Assignments
9700-A2-GB20-20
December 2002
E-5
Model 9783 COM Port Connector
Table E-2, Model 9783 COM Port Connector
, provides the pin assignments for the
FrameSaver Model 9783 CSU/DSU’s and router’s 25-position EIA-232-E
communication port connector.
Model 9720 and 9788 COM Port Connector
Table E-3, Model 9720 and 9788 COM Port Connector
, provides the pin
assignments for the FrameSaver Model 9788 CSU/DSU’s and router’s 9-position
EIA-232-E communication port connector.
Table E-3.
Model 9720 and 9788 COM Port Connector
Table E-2.
Model 9783 COM Port Connector
Pin #
Signal
Direction
1
Shield (GND)
—
2
DCE Transmit Data (TXD)
From DTE ( In)
3
DCE Receive Data ( RXD)
To DTE ( Out)
4
DCE Request To Send (RTS )
From DTE (In)
5 *
DCE Clear To Send (CTS)
To DTE (Out)
6 *
DCE Data Set Ready ( DSR)
To DTE (Out)
7
Signal Ground (GND)
—
8 *
DCE Carrier Detect (CD)
To DTE ( Out)
9–19
Unused
—
20
DCE Data Terminal Ready (DTR)
From DTE (In)
21–25 Unused
—
*Pins 5, 6, and 8 are tied together.
Pin #
Signal
Direction
1*
Data Carrier Detect (DCD)
To DTE (Out)
2
Receive Data (RD)
To DTE (Out)
3
Transmit Data ( TD)
From DTE ( In)
4
Data Terminal Ready (DTR)
From DTE (In)
5
Signal Ground (GND)
—
6*
Data Set Ready (DSR)
To DTE (Out)
7
Not used
—
8*
Clear To Send (CTS)
To DTE (Out)
9
Not used
—
*Pins 1, 6, and 8 are tied together.