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Black rectangular AC adapter with barrel connector and wall plug

OIAGLH

OIAGLH 48V 0.38A 18W PSA18U-480C ADP-18PB AC adapter

SKU CH-N3PM-ZMME8

48 V 0.38 A 18 W AC adapter powers compatible IP phones

  • Delivers 18 W for reliable IP phone operation
  • 48 V 0.38 A output matches original power specifications
  • Replaces part numbers 34-1977-02 and 34-1977-03
  • New condition ensures full performance from first use

OIAGLH 48 V 18 W AC adapter

This OIAGLH AC adapter delivers 48 V at 0.38 A for a total of 18 W. It matches part numbers PSA18U-480C and ADP-18PB and references 34-1977-02, 34-1977-03 and A0. The unit is supplied new and is intended to power compatible AP IP phones.

Thermals noise and power draw

The adapter draws 18 W from the mains under normal load and converts it to a regulated 48 V DC output. No active cooling is present so operation is silent. Heat output corresponds to the 18 W conversion loss and is dissipated through the enclosure.

Highlights

  • Delivers 18 W for reliable IP phone operation
  • 48 V 0.38 A output matches original power specifications
  • Replaces part numbers 34-1977-02 and 34-1977-03
  • New condition ensures full performance from first use

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 48V 0.38A adapter and what step is often missed?

Connect the barrel plug to the AP IP Phone power port and plug the IEC C7 mains lead into a wall socket; the step often missed is verifying the phone draws 18W before mounting.

What maintenance or replacement will the PSA18U-480C adapter need later?

The sealed 18W unit has no user-serviceable parts; replace the whole adapter if output drops below 48V or the mains lead shows wear.

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