Tunnel Master® Jr. User Manual
- Page 9
Chapter 2: Hardware Installation
Termination points
for Pulse, Gate, Tire,
and Panic Circuits.
Plug in relays for ease of
serviceability. Each relay
has 2 fuses
(24 V AC and 120 V AC).
Built in spare fuses and
fuse tester (located near
the center of the box).
12 V AC transformer
powers the Keypad Power
Board only.
WARNING:
Do NOT power any
other device from this
transformer!
NOTE:
PC and Printer
connections are located in the
base of the box.
Power in.
Power
Conditioner
Board
Comm Cable Terminal Blocks
for 16 button Entry Keypad
and other TMJ relay box.
Figure 2-5. Tunnel Master Jr. Interior Components
Tunnel Master Jr. Relay Box Interior
Each relay has circuits to control both 24 V AC and 120 V AC simultaneously so that a service sign as
well as the service solenoid can be operated from the same relay.
Each relay can be programmed to flash, eliminating the need for field installed flashing
relays for signs.
Summary of Contents for Tunnel Master Jr
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