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9-32
Installation and Maintenance Volume
The power filter assembly is replaced as a unit. Do not disassemble it in any way. Refer to Figure 9-21
for the AC domestic, Figure 9-22 for the AC international, or Figure 9-23 for the DC power filter
assembly illustrations.
Caution!
Removing the Power Filter Assembly
To remove the power filter assembly, use the following procedures:
1. Unlock and open the door of the cabinet.
2. Turn OFF the PSU.
3. If the message server has an AC power source, disconnect the power cord at the power filter
assembly and set it aside.
If the cabinet is DC-powered, remove the cover from the DC filter assembly and disconnect the wires
from the power source at the terminal block mounted on the DC filter assembly.
4. At the cabinet rear, remove four screws that secure the top panel to the cabinet. Remove the panel.
5. Put on an antistatic wrist strap. Connect it to an unpainted portion of the cabinet.
6. Remove the three screws that secure the power filter assembly to the cabinet.
7. Disconnect the wires from the power filter assembly that lead to the motherboard assembly and set
the filter assembly aside.
.
Installing the Power Filter Assembly
To install the power filter assembly, use the following procedure:
1. Connect the wires from the motherboard assembly to the power filter according to the voltage
requirement for the message server.
.
2. Secure the power filter assembly to the cabinet with three screws.
3. Fasten the top panel with the four screws.
4. If the cabinet has an AC power source, plug the power cord into the AC power connector on the
power filter box.
If the cabinet is DC-powered, reconnect the wires from the power source to the terminal block, as
shown in Figure 9-24.
5. Turn ON the power supply.
6. Close and lock the door of the cabinet.
7. Test the message server for correct operation.
Octel 200/300
S.4.1
The power filter assembly is sensitive to static
electricity. Do not attempt the following procedures
without wearing an antistatic wrist strap.
The AC power filter assembly does not require tools, whereas the DC filter assembly requires
an open-ended wrench to disconnect the wires.
When fastening the filter harness to the DC filter assembly, route the connecting wires away
from the sharp edge.
PB60019−01
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