A. Main System Power Switch
Powers on or shuts down the Alpha MUTT
®
.
B. 30 Amp Fuse Socket
Overload protection for unit.
C. Air-Regulator Knob
For setting system pressure up to 120 psi.
D. Chassis Ground Outlet
Bypasses cable ground and establishes chassis ground from tester directly to trailer chassis.
E. Cable/Truck Test Input
For running cable tests and connecting directly to tractor.
F. Serial Tag
Product part number and serial number.
G. Shop Air Input
A bulk-head air input that is used to connect an air compressor to the Alpha MUTT
®
for testing air
brakes on a trailer.
H. Main Circuit Board Update Port
For updating system firmware, including light and air brake testing controls and menus.
I. ABS Circuit Board Update Port
For updating firmware of ABS diagnostic board.
J. 20 Amp Independent Power Input
For connecting external 12V DC 20-amp max. power supply, such as external battery, or
hardwiring to vehicle with charging system. Not recommended to connect to 12-volt wall plug in
power supplies while short circuit testing.
K. Bluetooth
®
Antenna
For Bluetooth
®
connectivity.
L. Access Panel
For accessing and maintenance on internal parts.
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