Tunnel Master® Jr. User Manual
- Page 21
Chapter 2: Hardware Installation
Relay Box Jumper Settings
The following figure and table will explain the location and purpose of the various jumpers, switches,
and controls on the Relay Box circuit board. This board is located on the inside of the Relay Box door.
Relay Box Circuit
Contrast Control
for front of box
LED display
DIP Switch
SW1 Circuit Board
Reset Button
JP6
JP2
JP5
JP4
JP3
JP8
JP9
JP7 JP10
JP11
Figure 2-18. Relay Jumper Box Settings
Summary of Contents for Tunnel Master Jr
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