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Tunnel Master® Jr. User Manual
Chapter 3: Entrance Keypad Installation
Entrance Keypad Jumper Settings
The Entrance Keypad circuit board figure below shows the location of the various jumpers on the Entrance
Keypad circuit board.
Figure 3-3. Keypad Circuit Board Jumper Settings
(SW1) Circuit Board Reset button
JP1
JP2
JP3
DIP Switch
JP7
JP5
JP6
JP4
The jumper functions are displayed with their normal settings. By default, the keypad is address 5.
There is no reason to change this unless advised by ICS. If you have two keypads, the second is set to address 6.
Jumper
Setting
Description
J1
ON
Reserved Jumper; ALWAYS ON
J2
ON
Reserved Jumper; ALWAYS ON
J3
1 and 2
EPROM Chip Enable; Jumper covering pins 1 & 2 letters for
corresponding letters EPC.
J4
ON
Ground Jumper
J5
OFF
Biasing Resistor High (+)
J6
OFF
Biasing Resistor Low (-)
J7
ON
Terminating Resistor. Set to ON if it is the first or last device in the
network.
Table 3-2.
Keypad Circuit Board Jumper Settings
Summary of Contents for Tunnel Master Jr
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