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Knowledge Base

FAQ-How Are the Pins Arranged When the AR Router Is Connected to Nortel PBX Option 11 Through the E&M Module

Publication Date:  2019-07-09  |   Views:  159  |   Downloads:  0  |   Author:  SU1000724883  |   Document ID:  EKB0000461907


Issue Description

The AR router is connected to Nortel PBX Option 11 through the E&M module. The pin arrangement on the AR router, however, is different from that on the Cisco device. 


Alarm Information


Handling Process

1. 4-pin Type 2 is used for cable connection.
The relevant configurations on the AR router are as follows:
type 2
For additional configurations, see the attachment.
2. The following figure (E&M 4-pin Type 2.bmp) shows the correct pin arrangement.
3. Note that the pin arrangement on the Huawei router is different from that on the Cisco device. The arrangement of E and M, namely, pin 2 and pin 7, on the Huawei device is an inverse of that on the Cisco device. 


Root Cause