Installing Loop Board - Samsung SMG-400 User Manual

Installing LOOP Board

This section describes a method of installing a LOOP board in the MCU board of the SMG-400.
The LOOP board is necessary when the SMG-400 is used for Tandem Gateway operation. The
LOOP board is connected to a PBX or KTS in the form of FXO/FXS.
Before installing the LOOP board, please make sure that the main cable is
detached from power line and that all at telecommuni-cation cables are
deltached form telecommunication ports.
When installing the LOOP board on the MCU board, bear the following in mind.
The high voltage static-electric charge is easily accumulated in a human body. Deal with the
board after removing all the accumulated electric charge by touching any equipment's device or
the grounded part.
Don't touch the edge connector of the board and the jumper pin, if possible.
You have to ground the surface of a workstation, on which the board is place, after wrapping it
with conductor. And you also can put the Ground clip connected to the anti-static carrying bag
to use the station.
When you have to touch the board, it is recommended to put an anti-static strap on the wrist, if
possible.
After understanding all these cautions, install the LOOP board on the MCU board in the following way.
1. Loosen the three screws at both ends and the center of the back panel of the SMG-400.
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P 2
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P 2
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