Specifications and Cables

This appendix provides system, port, and cabling specifications for the Cisco 837 and SOHO 97 routers.

System Specifications

Table A-1 outlines the system specifications for the routers.

Table A-1 System Specifications 

Description
Design Specification
Physical Dimensions
 

Dimensions (H x W x D)

2.0 x 9.7 x 8.5 in. (51 x 246 x 216 mm)

Weight (does not include desktop power supply)

1.48 lb. (0.67 kg)

Environmental Operating Ranges
 

Nonoperating temperature

-4 to 149°F (-20 to 65°C)

Nonoperating humidity

5 to 95% relative humidity

Nonoperating altitude

0 to 15,000 ft (4570 m)

Operating temperature

32 to 104°F (0 to 40°C)

Operating humidity

10 to 85% relative humidity

Operating altitude

0 to 10,000 ft (3000 m)

Router Power
 
AC input voltage

100 to 240 VAC

Frequency

50 to 60 Hz

Power consumption

Maximum of 18W

Voltage

18 VDC


For information on regulatory compliance, refer to the Regulatory Compliance and Safety Information for Cisco 800 Series and SOHO Series Routers document that shipped with your router.

Warning Ultimate disposal of this product should be handled according to all national laws and regulations.

Port Connector Pinouts

This section provides pinouts for the following connectors:

•Console (for connecting a terminal or PC)—See Table A-2.

•ADSL—See Table A-3.

Table A-2 Console Connector Pinouts (RJ-45) 

Pin
Function

1

RTS

2

DTR

3

TXD

4

GND

5

GND

6

RXD

7

DSR

8

CTS


The console port is configured as a data communications equipment (DCE) device. The default parameters for the console port are as follows:

•9600 baud

•Eight data bits

•No parity

•One stop bit

Table A-3 shows ADSL connector pinouts for the Cisco 837 and SOHO 97 routers.

Table A-3 ADSL Connector Pinouts (RJ-11)

Pin
Function

1

Loopback to pin 6

2

Unused

3

Tip

4

Ring

5

Unused

6

Loopback to pin 1


Cabling Specifications

This section provides specifications for the following Ethernet cables, which you might need to provide:

•Straight-through cables

•Crossover cables

This section also provides information on the maximum cable distance that may be used in connecting equipment to the router.

Ethernet Cable Specifications

Table A-4 lists the specifications for straight-through and crossover Ethernet cables.

Table A-4 Ethernet Cable Specifications

Type
Category

10BASE-T

Category 3 or 5

100BASE-T

Category 5 or above


Maximum Cable Distances

Table A-5 provides the maximum distance of Ethernet and telephone cables that you can use to connect equipment to the router.

Table A-5 Maximum Cable Distance

Cable
Maximum Distance

Ethernet and telephone cables

328 ft (100 m)