Starcom Systems Helios - Helios TT Unit Pin Out Details

Helios Users Guide
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Helios TT pin out
Pin
No.
Function
Color
Designation
Notes
1
Analog /
digital input
Yellow/Blue
Input (+)
Digital input is designated
as "Door" by default.
Analog can be used for fuel
or temperature
measurement. See Chapter 4
– Configuration > Hardware
> Analog input configuration
on Helios TT and Basic
2
RS232 RX
White
Communication
RS232 wire set with Molex
connector
3
Main Power 12
V
Red
Red
Power Supply
Main +12 V supply. Must be
protected by a 5 A fuse
4
Key (Ignition)
Yellow
Input (+)
Indicates the vehicle ignition
state
5
N/A
6
Keypad/Dallas
Blue/White
Keypad connector
7
RS232 TX
Red
Communication
RS232 wire set with Molex
connector
8
GND
Black
Black
Black
GND
9
Immobilizer
and/or
Gradual Stop
Blue
Output (-)
Install with an external
relay. See Appendix D –
Immobilizer and Gradual
Stop
10
N/A