Cisco C195 Maintenance And Upgrade page 7

Maintenance and Upgrade
1 Drive tray screws ( two on each side)
Step 3 Install a new drive:
a) Place a new drive in the empty drive tray and install the four drive-tray screws.
b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.
c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.
Remove and Replace a Power Supply
Two power supplies ship with the chassis; they are redundant and hot-swappable. One is the active power
supply and the other is the standby power supply (1+1).
Note The C195 ships with one power supply, but you can add another one for redundancy.
The chassis also supports cold redundancy. Depending on the power being drawn by the chassis, one power
supply might actively provide all power to the system while the remaining power supply is put into a standby
state. For example, if the power consumption can be satisfied by power supply 1, then power supply 2 is put
into a standby state.
Caution When you replace power supplies, do not mix power supply types in the chassis. Both power supplies must
be the same wattage and Cisco PID.
Trouble Power supply health monitoring notifies you if the power supply loses power or malfunctions so that redundancy
is lost. Check the power supply cables to make sure they are functioning. If they are and errors are still
occurring, replace the power supply.
Before you begin
Take note of the following warnings:
Warning
Statement 1018 Supply Circuit
To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that wiring
is not overloaded.
Remove and Replace a Power Supply
2 Drive removed from drive tray
Maintenance and Upgrade
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