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DCRS-7600 InstallManual
serve as a standby power supply for another. Under normal operation conditions, the two
power supply modules concurrently operate and each of them bears half of the loads. If
one of the power supply modules fails to work or its switch is off, its alarming indicator will
be on. At the same time, another power supply becomes responsible for the power supply
of the whole switch. When the failure power supply module returns to normal state or its
switch is turned on, the alarming indicator will be off.
The power supply modules are installed on the upper part of the machine chassis,
and are connected with the backplane of the switch through specific interfaces. The two
power supply modules are fixed on the machine chassis with two screws. Each power
supply module has one switch. Under normal operation conditions, two switches shall be
turned on. For changing power supply modules, it is not necessary to open the chassis.
You may turn off the switches of corresponding power supply modules and screwing off
the fixing screws for changing the modules.
1.4.4.2.1 MRS-7604-A1-AC (Alternating Current Power Module)
When powered by AC inputs, the AC power module MRS-7604-A1-AC and
corresponding AC distribution box should be used in the DCRS-7604(V2.0 above). The
input voltage of the MRS-7604-A1-AC is 200V/264 VAC, with ranges between 200 ~ 264
VAC and frequency between 50 ~ 60 Hz, the maximum output power is 400W.
1.4.4.2.2 Power module Front Panel
The front panel of MRS-7604-A1-AC 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.
The Front Panel view is shown below:
Fig 1-32 MRS-7604-A1-AC Front Panel View
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Chapter 1 Product Overview
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