Specifications

T1 AND E1 FIBER MUXES
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To select the fiber optic link redundancy mode on muxes with the optional dual fiber link board installed:
1. In the Configuration screen, choose option 4, Special configuration actions. The Special Actions menu
screen appears (see Figure 5-11).
SPECIAL ACTIONS MENU
--------------------
0. Exit.
1. Select fiber optic link. Normal
2. Remote loop configuration. Normal
Enter a choice :
Figure 5-11. Special Actions menu.
2. Choose 1, Select fiber optic link, and select one of the following options:
Number Option To
0* Normal Enable fiber link redundancy in case main link fails.
1 Main Force the main link as the active link.
2* Backup Force the backup link as the active link.
* The Normal and Backup options are only available on muxes that have the optional dual fiber link board
installed.
5.3.5 S
ETTING/RESETTING THE T1 OR E1 REMOTE LOOPBACK
1. In the Configuration screen, choose option 4, Special configuration actions. The Special Actions menu
appears (see Figure 5-11).
2. Choose 2, Remote loop configuration, and type 1 to set the loopback or type 0 to reset the loopback. See
Chapter 6 for the definitions of the T1 or E1 remote loopback.
3. Choose 0, Exit, to return to the Configuration screen.
5.3.6 R
ESETTING TO THE DEFAULT CONFIGURATION
1. In the Configuration screen, choose option 5, Reset to default configuration. The Reset to Default
Configuration screen appears (see Figure 5-12).
NOTE
Resetting to the default configuration restores the system to its normal transmission
path (no loops) and to the Normal redundancy mode, as defined in Section 5.3.4.