CHAPTER 4: Operation
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4. Operation
In this chapter, you’ll find detailed instructions for operating the T1 or E1 Fiber Mux. The information
presented in this chapter includes a description of the mux’s front-panel controls and its operating procedures
(turning on, front-panel indications, and turning off).
4.1 Front-Panel Indicators, Connectors, and Pushbutton
Figure 4-1 shows the mux’s front panel. Table 4-1 lists the functions of the mux’s connectors, indicators, and
single button located on the front panel. The numbers in Table 4-1 correspond to the numbers in Figure 4-1.
Figure 4-1. The mux’s front panel.
Table 4-1. Front-panel indicator, button, or connector and corresponding function.
Number Indicator/Button/Connector
Function
1
POWER A indicator
Off when the main power supply is not powered.
Lights in green when the main power supply is turned on and operates
normally.
Lights in red when the main power supply is turned on and a malfunction has
been detected. In this case, the mux continues to operate normally using the
backup power supply.
2
POWER B indicator
Off when the backup power supply is not powered.
Lights in green when the backup power supply is turned on and operates
normally.
Lights in red when the backup power supply is turned on and a malfunction
has been detected. In this case, the mux continues to operate normally using
the main power supply.
3
SYSTEM MNG indicator
Lights when the internal management board is engaged in an active
management session.
When the MNG indicator lights, the front-panel SYSTEM CALL pushbutton is
functional.
4
SYSTEM CALL indicator
Lights when a call alert is received through the service channel from the
remote operator.