Power Input And Output Functions; Grounding Function; Alarm Output Function - Zte Unitrans ZXMP M600 Technical Instructions

3.4 Power Input and Output Functions

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3.5 Grounding Function

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3.6 Alarm Output Function

The ZXMP M600 supports alarm output function. It can output critical alarm, major
alarm and ring trip signals to the row-first cabinet in the equipment room.
The alarm output interface of the ZXMP M600 is situated on the NCP board of the
CWU shelf. It is a RJ11 socket and is marked as ALM.
Power Input
The ZXMP M600 supports DC input. The voltage of DC power is –48V, +24V
or –60V.
Two DC power boards can be configured to implement 1+1 hot backup.
In addition, the ZXMP M600 supports input over-voltage and over-current
protection as well as the reverse connection protection of DC input.
Power output
The ZXMP M600 equipment outputs +5V/-48V DC with a power of 50W
through power board. Here, +5V is power voltage for the CWU board while
-48V is for the SMU board.
The transformed power is transmitted to the boards through power sockets on
the backplane. Power supplies of the boards are independent from one another.
In the equipment, the DC work ground should be isolated from the protection
ground.
The protection ground of the power input should be connected to the shell of the
shelf.
The shielding ground of the board should be connected to the shell of the shelf
through the board panel.
A grounding hole is set at the back of the shelf. It is marked as
connected to the grounding copper bar of the equipment room through wiring
terminals.
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Chapter 3 System Function
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