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3Com Router 6000 Family
Installation Manual
Chapter 1
Preparing for Installation
3Com Corporation
1-9
IV. Encryption daughter card
The RPU2 supports the encryption daughter card.
1.4.2 PSU
I. Functions
The power supply system of the Router 6000 can work in either single-power or dual-power
mode. In dual-power mode, the two PSUs (DC-input or AC-input) function in redundancy or
load sharing mode. That means, when a PSU fails or its power supply is disconnected, another
PSU can still work and supply all the power required by the system.
Both AC-input PSU and DC-input PSU are available with the Router 6000. The PSUs supply
350W power and provide overcurrent and overvoltage protection.
You can connect a PSU to the backplane by inserting it from the rear of the router chassis. It is
hot swappable and its switchover does not affect the ongoing system operation.
Note:
When installing your router in a communications equipment room, ensure that the AC
power distribution cabinet can provide a lightning protection box or arrester against
the current of 20 KA and above.
II. Appearance
Figure 1-7 AC-input PSU
Figure 1-8 DC-input PSU