Nortel Networks 24T Manual de usuario descargar pdf (Pagina 293)

100

101

Connectors and Pin Assignments

309985-B Rev 00

D-5

DB-9 (RS-232-D) Console/Comm Port Connector

The DB-9 Console/Comm Port connector (Figure D-4) is configured as a data

communications equipment (DCE) connector. The DSR and CTS signal outputs

are always asserted; the CD, DTR, RTS, and RI signal inputs are not used. This

configuration enables a management station (a PC or console terminal) to connect

directly to the switch using a straight-through cable.

Figure D-4. DB-9 Console/Comm Port Connector

Table D-2 lists the DB-9 Console/Comm Port connector pin assignments.

Table D-2. DB-9 Console/Comm Port Connector Pin Assignments

Pin Signal Description

1 CD Carrier detect (not used)

2 TXD Transmit data (output)

3 RXD Receive data (input)

4 DTR Data terminal ready (not used)

5 GND Signal ground

6 DSR Data set ready (output always asserted)

7 RTS Request to send (not used)

8 CTS Clear to send (output always asserted)

9 RI Ring indicator (not used)

Shell Chassis ground

619EA

1 2 ... 288 289 290 291 292 293 294 295 296 297 298 ... 309 310

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Nortel Networks 24T Manual de usuario Pagina 293

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