![]() Amplifiers/Power Supplies/Accessories The PK400 is used with the SM401, SM404, SM406 and SM411 series intercom only. It provides the power, tone signaling and L.E.D. power for the whole system. The Alpha Communications®/Tektone PK400 power supply/control unit is used only with the SM401, SM404, SM406 and SM411 (series) intercom systems. The PK400 is used to provide tone signal, L.E.D. illumination and system power for the entire system. One (1) PK400 is required per system. The PK400 operates on 24VAC (30VA) low-voltage Class II wiring, using our model #SS106 transformer. All PK400 connections are done with a supplied plug-in wiring harness. |
![]() |
|
FEATURES Easily Installs Right on Finished Wall Surface or in Optional Junction Box Operates on Safe Low-Voltage Class II Wiring Plug-in Wiring Harness Connector |
|
SPECIFICATIONS |
Dimensions: Height: 5.50" (140mm) Width: 3.13" (83mm) Depth: 2.00" (51mm) from mounting surface |