Broadmore 1750 - Release 4.6 8-31
Maintenance and Troubleshooting
Power Supply
Power Supply
The Broadmore 1750 receives –48 VDC power at the chassis rear from a user-provided
source. Repair/replacement of this source is external to the scope of this manual.
Optionally, the Broadmore 1750 may be configured with a dual AC power supply.
When an AC power source is used, the following steps are required to repair/replace a
power supply module. The power supply is usually mounted directly below the
Broadmore 1750. The power supply design facilitates module replacement without any
wiring or power disruption.
1. Ensure that a replacement module is available.
2. Identify the problem module by front panel indicator that will not be
illuminated and a software alarm will be received at the control station.
Additionally, the integrated fan/alarm module front panel will give a no-power
indication (from green to off) for the defective module.
3. Turn the power switch off for the defective power module. Loosen the front
panel screws and remove the defective module by pulling it straight out the
front. Fully insert the replacement module, ensuring proper alignment. Turn
the power switch on and the front panel should display green. The power
modules are hot-swappable. This replacement will not impact Broadmore 1750
operation due to the built-in redundancy feature.
4. Tighten the front panel retainer screws to hold the new module in place.
5. Contact Customer Service and return the defective module for repair.