
VT-X5
The USFT VT-X5 Install Guide
Installation and Wiring
Step 3 > Status LED Lights
405.726.9900 | 2912 NW 156th Street | Edmond, Oklahoma 73013 | usft.com
If you have any questions or encounter any difculties with this system, please contact our technical support.
Monday through Friday 7 a.m. to 7 p.m. CST and Saturday 9 a.m. to 4 p.m. CST
■1 blink - the modem is not detecting a SIM card.
■2 blinks - the modem is not detecting a cellular signal. Check antenna connection.
■3 blinks - the GPS receiver is not tracking any satellites. Check antenna connection and placement.
■4 blinks - the modem has no cellular signal and GPS is not tracking any satellites.
■5 blinks - the modem is not detecting a SIM card and GPS is not tracking any satellites.
■6 blinks - the modem is not responding, and the antenna may be disconnected or the device may
be incorrectly congured within the rmware.
■7 blinks - the modem is not responding and the antenna may be disconnected and GPS is not
tracking any satellites.
■8 blinks - GPS is okay, but the modem is not registered on a network. A problem with the cellular
account is possible.
■9 blinks - the modem is working correctly, and GPS is tracking satellites but is not making position
xes. The device or antenna may need repositioning for a good view of the sky.
Blinking LED lights will signal the following:
The long red wire (power) should be directly wired to a constant 8V - 16V power source found at the
key source or fuse panel.
The long black wire (ground) should be securely fastened to a grounded screw or to chasis ground.
The long white wire (ignition) is the ignition event wire that is best installed directly to the ignition
wire. Ensure that power to the ignition wire is available ONLY when the vehicle ignition is turned on.
All makes and models of vehicles are different - we recommend you make sure that you know your
particular vehicle’s Constant and Ignition wires and their specic color(s) prior to installation.
The white, blue, red/white, grey and green/yellow wires (input) can be used to monitor many
functions such as PTO activity (Power Take Off), emergency lights, panic switch, etc.
The green, white/brown, yellow and orange wires (output) can be used to lock/unlock doors, honk
horn, remote start or disable starter, etc.
The red bundle wires are to be connected to a 12V backup battery.
* Must be connected for device to work properly.
Power
Ground
Ignition input
8-16 VDC constant
Ground
Key (on)
*
*
*
Long Red wire
Long Black wire
Long White wire
Green/Yellow wire
White wire
Blue wire
Red/White wire
Grey wire
PTO 1 (12V)
PTO 2/Panic
PTO 3 (12V)
PTO 3 (12V)
PTO 4
Switch 1 Input (-)
Switch 2 Input (-)
Switch 3 Input (-)
Switch 4 Input (-)
Input - Bias high
Backup Battery
Horn
Unlock Door
Remote/Start
Starter Kill/Lock
Red bundle
White/Brown wire
Yellow wire
Green wire
Orange wire
Input (12V)
Relay 1 Output (-)
Relay 2 Output (-)
Relay 3 Output (-)
Relay 4 Output (-)