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CHAPTER 4: Operation
The Converters also have several important internal components
(these are schematically represented in Figure 4-2 below):
• Multiplexor for converting single-mode signal to multimode
(MUX SM/MM)
• Multiplexor for converting multimode signal to single-mode
(MUX MM/SM)
• Remote loop generator
• Remote loop detector
REMOTE LOOP
GENERATOR
REMOTE LOOP
DETECTOR
REMOTE
LOOP LED
TEST
LED
LOC TEST
SWITCH
REM TEST
SWITCH
MM
MM
SM
SM
MUX
XMT
REC
REC
XMT
MUX
Figure 4-2. Schematic of a Converter’s internal components.
MM/SM
SM/MM
4.2 Power-Up, Normal Operation, and Power-Down
To turn on the Fiber Optic Converter, move the POWER switch on the rear
panel to the ON position. The POWER LED on the front panel should light.
Once powered on, the Converter operates unattended. Operator
intervention is required only for testing or when an error occurs.
To turn off the Converter, move the POWER switch to the OFF position.
The POWER LED should go dark.
