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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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The System Does Not Display 8AS Port Information

The System Does Not Display 8AS Port Information

Fault Description

An 8AS interface card is used as a serial port server and connects to the console port of an AR router. However, no 8AS port information is displayed.

Possible Causes

  • Pin assignments in an 8AS cable are incorrect.

Troubleshooting Procedure

Make an 8AS cable according to Table 12-3.

Table 12-3  Pin assignments in an 8AS cable

X1 (RJ45)

Signal

Direction

X2 (RJ45)

1

DCD

4

2

DTR

7

3

DSR

2

4

GND

-

5

5

RXD

3

6

TXD

6

7

CTS

1

8

RTS

8

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Updated: 2019-05-10

Document ID: EDOC1000079719

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