Figure 3. Relay Box Interior Components - ICS Tunnel Master Jr User Manual

User Manual—Version 3.0
Termination points for Pulse,
Gate, Tire, and Panic Circuits.
Plug in relays for ease of
serviceability. Each relay has
two fuses (24 VAC and 120
VAC).
Built in spare fuses
and fuse tester.
12 VAC transformer
powers the Relay
circuit board only.
WARNING:
DO NOT Power any
other devices from this
transformer!
Power In
January 2016

Tunnel Master Jr.
Power Conditioner
Board

Figure 3. Relay Box Interior Components

System Hardware and Installation
Comm Cable Terminal Blocks for 16 button
Entrance Keypad and other TMJ relay box.
19