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User Manual
24
is, connect the terminal in the middle of the DC power supply interface to the protection earth at first.
Before electrifying, please connect the “-48V” terminal with cable of lower electrical potential and
connect the “BGND” terminal with cable of higher electrical potential.
Please tighten the connection, and then turn on the power supply. The power supply status indicator
PWR (Green) on the front panel of the device will turn ON to show that the power supply is working
normally.
The device will begin to initialize and self-check after electrifying. The process will take no more
than 10 seconds. During the initialization and self-checking, the optical interface status indicator
LOF and E-6 may flicker for one time, which is a normal phenomenon. The system will begin its
normal operation after 10 seconds.
During normal operation, if the optical interface is correctly connected, there will be no LOS, LOF,
E-3, and E-6 alarms.
When devices on both ends are electrified with no connection to the V.35 interfaces, when the
devices are working in the unframed mode, the indicator AIS may turn ON, which is a normal
phenomenon. In this circumstance, the flickering of indictors TD and RD is normal too.
