3Com 3CNJPSL IntelliJack Network Jack Switch Power Supply

The 3Com 3CNJPSL is a 48V DC AC power adapter for the 3Com IntelliJack Network Jack Switch range, used to locally power an IntelliJack unit on LAN segments that don’t already provide Power over Ethernet from the wiring closet. The IntelliJack turns a standard wall LAN outlet into a small managed switch point, commonly used to power a VoIP phone alongside a PC at a single desk, and it needs a 48V feed to do that, either from PoE upstream or from a local supply.

Where the upstream switch or patch panel doesn’t provide PoE, the 3CNJPSL plugs into a mains outlet and delivers the 48V DC the IntelliJack and any attached PoE device (typically a VoIP handset) need to operate. This makes it a straightforward retrofit option for sites installing IntelliJack outlets into an existing non-PoE network without re-cabling or upgrading the closet switch. It’s a small, self-contained unit intended to sit near the outlet it’s powering.

It’s a good match for organisations running or expanding a 3Com IntelliJack deployment who need local power at specific points. Tech-Star (UK-based, shipped worldwide) checks every unit before it ships. Get in touch to confirm compatibility with your IntelliJack configuration.