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DCRS-7600 InstallManual
1.4.4.2.3 LED
The LED description of MRS-7604-A1-AC is as follows
Table 1-33 The Description of MRS-7604-A1-AC LED
LED
Output LED
Abort LED
1.4.4.2.4 Switch of power supply for front panel
MRS-7604-A1-AC provides a power supply switch for controlling the power output of
control module. Under normal operation conditions, the switches for power supply
modules shall be turned on concurrently. When the switch of one power supply module is
turned on and another is turned off, the FAULT indicator of the module will be on to
suggest the users to turn on the switch so as to utilize 1+1 redundant backup.
1.4.4.3 MRS-PWR-A1-DC
DCRS-7604 uses 1 +1 redundant DC power supplies. But not suggest that the AC
power and DC power be used mixed.
1.4.4.3.1 MRS-PWR-A1-DC (Direct Current Power Module for 400W)
MRS-PWR-A1-DC is a Direct Current Power module for 400W, which support hot
plug and redundance backup.
MRS-PWR-A1-DC can be used in the DCRS-7604(V2.0 above).
1.4.4.3.2 Power module Front Panel
The front panel of MRS-PWR-A1-DC is equipped with power supply switches, power
supply indicators as well as ventilating and cooling port and a handle for inserting and
pulling out the modules. On panel's right hand is DC connector, supports -48VDC input.
The power supply DC connector has three input terminal, they are RTN, -48V and PG
from the top down, the meanings are shown below:
RTN： power supply reflow
-48V： -48V input
Panel
Status
Label
Output
On Green
Good
Off
On Yellow
Fault
Off
1-51
Chapter 1 Product Overview
Description
Power Module Output Status is okay
Power Module has no output
Faulty Power Module /Not turning-on
The Output Switch
Power Module Working Fine
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