Provision Mux Module Protection; Introduction; Prerequisite Procedures; Circuit Protection - ADTRAN MX2820 System Manual

Provision MUX Module Protection

INTRODUCTION

This procedure provides step-by-step instructions to provision the M13 or STS-1 Multiplexer
(MUX) protection for the MX2820 system.

PREREQUISITE PROCEDURES

Obtain all necessary local instructions before provisioning the protection for the MUX module.
This procedure is required only for a 1:1 configuration and only if a manual switch of
protection is required. This procedure can also be performed to prohibit a manual switch of
protection.

CIRCUIT PROTECTION

The MX2820 system provides protection for circuit failures. The two modes of operation
include:
• Non-redundant mode, which offers no backup protection.
• Circuit failure recovery mode, which offers backup protection for a 1:1 redundant
configuration in the event one of the MUX modules fails.

Non-Redundant Mode

In non-redundant mode, the MX2820 system houses only one MUX module, installed in slot
A. In the event of a failure, an alarm is generated and the front panel LEDs reflect the
condition.

Circuit Failure Recovery Mode

In circuit failure recovery mode, the MX2820 system houses two MUX modules installed in
slots A and B. The MX2820 system provides circuit protection with redundant equipment
provisioning. The Active and Standby MUX modules share the same network and terminal
connections and both monitor all received network signals. The Standby MUX module takes
over if the Active MUX module fails.
61186003L1-1D
DLP-738
7-151