Cisco 1548 Micro Switch 10/100 Installation Guide
Specifications and Cables
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Specifications and Cables

Table Of Contents

Specifications and Cables

System Specifications

Ethernet Cable Specifications

Cable Pinouts


Specifications and Cables


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

System Specifications

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, "."

Cable Pinouts

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

Table B-2

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


10BaseT/100BaseTX Straight-Through Ethernet Cable

Table B-3

RJ-45
(from Network Device)
Pin 1
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.


10BaseT/100BaseTX Crossover Ethernet Cable