Protogate Freeway 3414, Hardware Maintenance Manual, Page: 41 / 72

3: System Indicators and Power Supply
DC 900-2031A 41
3.2 Replacing a Power Supply
Protogate does not recommend replacing the single power supply on the Freeway 3414
in the field. If a single power supply fails, please return the entire Freeway system to
Protogate for repair.
Dual redundant power supplies on the Freeway 3414R are designed to be replaced in
the field while the power to the system is still on. To replace a redundant power supply,
use the following procedure:
1. Press the Alarm Reset button to deactivate the audible alarm.
2. Look at the rear of the Freeway cabinet and determine which power supply has
failed. The GREEN LED at the bottom of the power supply will be RED or OFF
on a failed unit. Also, the cooling fans on the failed supply will not be turning.
3. Press the rocker switch at the bottom of the failed supply in the direction of the
“0” symbol.
4. Unplug the power cord from the rear of the failed supply.
5. Using a Phillips head screwdriver, remove the retaining screw at the top of the
failed power supply.
6. Using the metal handle, carefully pull the failed power supply unit straight back
and out of the Freeway cabinet. While removing the failed supply, be careful not
to disturb the power cord and rocker switch on the good supply. Figure 3–2 shows
an example of how the power supply slides out of the cabinet.
7. Take the replacement power supply and insert it into the empty socket. make sure
the replacement supply is pushed firmly all the way into the cabinet.
8. Using a Phillips head screwdriver, insert the retaining screw at the top of the
replacement power supply.