
16 Technical Specifications ELS100-8TXUF2
Physical
Height: 1.46 in. (3.7 cm)
Length: 4.65 in. (11.6 cm)
Width: 9.88 in. (24.9 cm)
Weight: 1.8 lb. (0.815 kg)
Memory
Packet Buffer Memory: 128 KB per port
Port Specifications
10Base-T and 100Base-TX Ports
Table A-1 shows the 10Base-T/100Base-TX pinouts. These ports are
wired MDI-X. All undefined pins are not used.
Table A-1. 10Base-T/100Base-TX Pinouts
MDI/MDI-X Crossover Cable Wiring
Figure A-1 shows the wiring scheme for implementing a crossover cable
if needed for connection to the switch’s 10Base-T or 100Base-TX ports.
Such a cable may be required when connecting the switch to another
switch or a hub device.
Figure A-1. External Crossover Cable Wiring
Pin MDI-X Signal Name
1 RD+
2 RD-
3TD+
6TD-
ELS100-8TXUF2.book Page 16 Friday, June 4, 1999 4:01 PM