Technical Specifications

This appendix describes the physical characteristics and connector pinouts of the
Catalyst 2100.

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 2100 Connector Pinouts

This section describes the following connectors used by Catalyst 2100:

10Base-T RJ-45
100Base-TX RJ-45
10Base-5 AUI
Serial RS-232

Ports 1 through 25 use standard RJ-45 connectors and 10Base-T pin-outs 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

100Base-TX Connector Pinout

The pinout for the 100Base-TX ports is shown in Table A-3.

Table A-3: 100Base-TX Pinout and Connector

AUI Connector Pinouts

The AUI connector is a 15-pin female receptacle shown in Figure A-1; the pinouts are shown in Table A-4.

Figure A-1: AUI Connector

Table A-4: AUI Connector Pinouts

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