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Table of Contents

Specifications and Cables

Specifications and Cables

This appendix provides system, cabling, and port specifications for the switch.

System Specifications

Table B-1 outlines the system specifications for the switch.


Table B-1: System Specifications
Description Specification
Environmental Operating Ranges
Nonoperating temperature -13 to 158°F (-25 to 70°C)
Nonoperating humidity 0 to 90%, noncondensing
Nonoperating altitude up to 30,000 ft (9146 meters)
Operating temperature 23 to 113°F (-5 to 45°C)
Operating humidity 0 to 85%, noncondensing
Operating altitude up to 9840 ft (3000 meters)
Power Requirements
AC input voltage 100 to 127 VAC, 200 to 240 VAC
Power consumption 20W
Physical Dimensions
Dimensions (H x W x D) 3.1 x 11.2 x 8.7 in. (7.9 x 28.5 x 22.1 cm)

Height includes the stacking curves on top of the switch.

Weight 2.7 lb (1.2 kg)

Ethernet Cable Specifications

For information on the Ethernet cables you must supply to connect network devices to the switch, refer to the "Preinstallation" section in Chapter 2, "Installation."

Cable Pinouts

Table B-2 describes the wiring for the 10BaseT and 100BaseTX straight-through Ethernet cable. Table B-3 describes the wiring for the 10BaseT and 100BaseTX crossover Ethernet cable.


Table  B-2:
10BaseT/100BaseTX Straight-Through Ethernet Cable
RJ-45 (from Network Device) Pin Signal Direction RJ-45 (from Switch) Pin
1 TX+ --> 1
2 TX- --> 2
3 RX+ <-- 3
4 - - 4
5 - - 5
6 RX- <-- 6
7 - - 7
8 - - 8

Table  B-3:
10BaseT/100BaseTX Crossover Ethernet Cable
RJ-45 (from Network Device) Pin1 Signal Direction RJ-45 (from Switch) Pin
1 TX+ --> 3
2 TX- --> 6
3 RX+ <-- 1
4 - -
5 - -
6 RX- <-- 2
7 - -
8 - -

1 Incorrectly connected unused wires generate noise on long lengths.


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