Chapter 3: Connecting power
TT-98-129218-A
Connecting power
23
To implement the ignition function, connect the appropriate pin in the I/O connector to the ignition
key switch:
•
Active high (default): Connect pin 5 to Ground. Connect pin 8 to “high” (10.5-32 V DC) when
the ignition is on.
•
Active low: Connect pin 8 to positive DC voltage (10.5-32 V DC). Connect pin 5 to Ground
(< 1.2 V DC) when the ignition is on.
Pin-out and default functions:
Discrete I/O interface
on page 31.
Standby current when the ignition power is off: See
Standby current
on page 51.
Connecting a Remote on/off switch
The terminal has a remote on/off function. When the terminal power switch is in the “on” position
you can remote-control the power function.
By installing a switch that can short-circuit the “Remote on/off” pins (2 and 5) in the power
connector you can power the terminal on or off with this remote switch.
When pins 2 and 5 are not short-circuited and valid input power is present, the terminal is
powered on, provided the Power switch is in the “on” position.
For pin-out for the power connector and a description of the wire colors in the power cable, see
Pin-out
on page 26.
For information on the standby current when the remote on/off switch is off, refer to
Standby
current
on page 51 in the
General specifications
.
