Catalyst 2800 User Guide
Technical Specifications
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Technical Specifications

Table Of Contents

Technical Specifications

Physical Characteristics

Catalyst 2800 Connector Pinouts

10Base-T Connector Pinouts

AUI Connector Pinouts

Serial Connector Pinouts


Technical Specifications


This appendix describes the physical characteristics and connector pinouts of the Catalyst 2800.

Physical Characteristics

Table A-1 Technical Specifications

Reliability

50,000 hours MTBF

Operating temperature

0 to 40 degrees Celsius

Operating humidity

10% to 90%

Operating altitude

Up to 10,000 feet

Power consumption

100 watts

Input voltage

90 to 250 volts, 50 to 60 Hz

Weight

23 lbs (10.4 Kg)

Width

19 in. (48.26 cm)

Depth

12.28 in. (31.19 cm)

Height

5.25 in. (13.34 cm)


Catalyst 2800 Connector Pinouts

This section describes the following connectors used by the Catalyst 2800:

10Base-T RJ-45

10Base-5 AUI

Serial RS-232

10Base-T Connector Pinouts

Ports 1 through 25 use standard RJ-45 connectors and 10Base-T pinouts with internal cross-over, as indicated by an X. These 10Base-T ports have their transmit (TD) and receive (RD) signals internally crossed, for attachment of an adapter using a straight-through cable.

Table A-2 10Base-T Pinout and Connector

AUI Connector Pinouts

The AUI connector is a 15-pin female receptacle, as shown in ; the pinouts are shown in .

Figure A-1 AUI Connector

Table A-3

1

GND

Ground

2

CI+

Positive AUI differential collision-data input

3

TX+

Positive AUI differential transmit-data input

4

GND

Ground

5

RX+

Positive AUI differential receive-data output

6

GND

Ground

7

NC

 

8

GND

Ground

9

CI-

Negative AUI differential collision data

10

TX-

Negative AUI differential transmit-data input

11

GND

Ground

12

RX-

Negative AUI differential receive data output

13

+12V

12 Volt supply for external MAU

14

GND

Ground

15

NC

 

AUI Connector Pinouts

Serial Connector Pinouts

The serial connector is a male 9-pin D sub-miniature connector, as shown in .

Figure A-2 Serial Connector

The pinouts are shown in .

Table A-4

1

DCD

2

RD

3

TD

4

DTR

5

GND

6

DSR

7

RTS

8

CTS

9

RI


Serial Connector Pinouts

The shell is connected to the chassis ground. Use a standard modem cable to connect to a modem. Use a null-modem cable to connect to a terminal.

Either piece of equipment may come with either 25-pin or 9-pin connectors.

Figure A-3

Modem Cable Schematic with 9-Pin and 25-Pin Devices

Figure A-4

Null-Modem Cable Schematic with 9- and 25-Pin Devices