The -PWR3 Wall-Mount Power Supply option provides filtered operating power for ISDN telephones and NT1 ISDN Network Terminations on pins 7 and 8 of the line cord (PS2 power arrangement) via an attached modular adapter. This power supply has sufficient capacity to power one NT1 and two ISDN telephones.

This model is an alternate to the -PWR2 desktop model. It allows connection to a six-pin or eight-pin modular wall jack by using the appropriate line cord. 

For NT1B-300TC, NT1U-220TC,  8810U, 8610U/8620U, and newer 6210U/6220U models with an integrated power jack, the -PWR1 Power Supply is recommended.

Input:    120 VAC, 60 Hz, 0.75 A max.

Output: 48 VDC, 625 mA

UL Listed