Comnet PS48V-.84A 48V Power Supply

Overview

The Comnet PS48V-.84A is a 48VDC power supply rated at 0.84 amps, sized for a single powered device rather than a multi-drop rack setup. Use it where a Comnet media converter, extender, or other 48V-input unit needs a dedicated wall or cabinet-mounted DC source instead of pulling power from a shared PoE injector or centralized supply. At roughly 1 lb, it drops into tight enclosures and low-voltage cabinets without adding meaningful weight to a wall-mounted panel.

Compatibility

PS48V-.84A is built for Comnet products with a 48VDC input requirement, including select media converter and transmission equipment models that spec 48V rather than the more common 12V or 24V rail. Confirm the target device's input voltage and current draw against the 0.84A output before pairing — this supply is sized for lower-draw single units, not for feeding multiple downstream devices off one output. It is not a PoE injector; if the connected Comnet unit expects PoE input rather than a discrete DC barrel or terminal connection, this is the wrong part.

Installation Notes

Mounts near the powered device to keep DC cable runs short, which matters more at 48V than at higher voltages if you're managing multiple supplies in one cabinet. Country of origin is China; the unit carries Comnet's lifetime warranty, which is worth factoring into total cost of ownership versus a shorter-warranty third-party substitute.

For system design beyond a single power supply — sizing PoE budgets across a full camera or media-converter run — see the PoE planning guide. This unit sits in the broader power supplies category alongside rack-mount and multi-output options, and pairs with the rest of the Comnet product line when standardizing an install on one manufacturer. If the connected device is part of a larger NVR-based system, verify total power budget before committing to single-unit supplies like this one.