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Com port connector – Paradyne FrameSaver SLV 9664 User Manual

Page 216

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Connectors, Cables, and Pin Assignments

C-2

9664-A2-GB20-00

March 2000

COM Port Connector

The following table shows the

signals and pin assignments for the DB25

communication port connector.

Signal

Direction

Pin #

Shield

1

Transmit Data ( TXD )

To COM port ( In )

2

Received Data ( RXD )

From COM port ( Out )

3

Request to Send ( RTS )

To COM port ( In )

4

Carrier Detect ( CD )

From COM port ( Out )

5, 6, 8

Signal Ground ( SG )

To/From COM port

7

Data Terminal Ready ( DTR )

To COM port ( In )

20

COM Port-to-Terminal Cable (Feature No. 3100-F2-540)

Order this cable when connecting the COM port to an asynchronous terminal;
it does not come with the FrameSaver unit. The following shows the
pin assignments from the COM port to the terminal interface.

1

2

3

4

5

6

7

8

496-14910

COM Port

Non-Keyed

8-Position

Modular Plug

Tx Clock

Rx Data

Ground

Tx Data

DTR

CD

RTS

Rx Clock

15

3

7

2

20

8

5

6

4

17

Rx Data

Ground

Tx Data

DTR

CD

CTS

DSR

RTS

DTE

DB25 Plug