Doorking Relay Board for Telephone Entry Systems | DKS-1982-010 WESCO Distance: Door/Sub to farthest master:

Distance: Door/Sub to farthest master: 650'(22AWG)

The Aiphone GF-3B 3-Module Back Box is an accessory used in the installation of Aiphone GT Series video intercom components that recesses into the wall

Nice 636US Circuit/Control Board is for the APOLLO 1600 Dual Swing Gate Operator/Opener System

This part is compatible with LiftMaster SL590 Slide Gate Operator

Doorking Spacer Output Model 1603

Doorking Relay Board for Telephone Entry Systems | DKS-1982-010 WESCO Distance: Door/Sub to farthest master:Doorking Relay Board for Telephone Entry Systems DKS 1982 010 Relay Board for Telephone Entry Systems, 1 Relay Board Required for Every 12 Phone Lines To Be Interfaced.