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MX2800 M13 Multiplexer User Manual Configuration, Section 3
61200290L1-1G 3-7
Miscellaneous
The Miscellaneous menu selections are used to configure the Loopback Timeout and Shutdown Stand-by
settings. Descriptions of these settings are explained below.
Loopback Timeout
The Loopback Timeout option is used to set the loopback timeout to one of the following:
• Disabled
•1 min.
•5 min.
• 10 min.
• 15 min.
• 30 min.
• 45 min.
•1 hr.
• 120 min.
Shutdown Stand-By
The Shutdown Stand-by option causes the system to disable the standby controller card, thus making it
unavailable for protection switches. Once this option has been selected and the standby controller has been
shut down, the option changes to Reset Stand-by. Selecting this option resets and reactivates the standby
controller, thus making it available for protection switching.
DS2 Configuration
The MX2800 can individually frame each of the seven DS2 streams in M12 (four T1s) or G.747 (three
E1s) format. When set to M12 (4xT1), the four T1s for the selected group are framed per ANSI T1.107.
When set to G.747 (3xE1), the first three T1/E1 ports of the selected group are framed per CCITT G.747
into the DS3 stream. The fourth T1/E1 port of the selected group is not available in this mode. Any combi-
nation of M12 (4xT1) and G.747 (3xE1) is allowed.