AutoGRAPH-GSM • USER MANUAL
38
TechnoKom © 2015
External Connection Diagram of Analogue Inputs:
ANALOGUE INPUT 2 (0..24V) - BROWN (8)
ANALOGUE INPUT 1 (0..10V) - GREEN (4)
BL
A
CK (2)
ANALOGUE
SENSORS
+V
+V
ANALOGUE INPUT 2 (0..24V) - BROWN (8)
ANALOGUE INPUT 1 (0..10V) - GREEN (4)
BL
A
CK (2)
ANALOGUE
SENSORS
RELAY
+V
+V
VEHICLE SYSTEM VOLTAGE (+)
IMPORTANT
Most analogue sensors are connected to the –Vin line of the vehicle power system. So, if the –Vin
line is disconnected (e.g., by a disconnecting switch), the state of the analogue input will be
undefined and analogue readings will not be considered to be valid. Therefore, if the tracker is
connected to the vehicle power system via a disconnecting switch, it is highly recommended to
connect the analogue sensors via a relay.
It is recommended to use a relay intended to switch dc circuits and with operating voltage
equal to voltage of vehicle power system. For example, 901.3747 relay, designed by AVAR Corp.
(www.ellink.ru/co/avar) for 24 V vehicle network.
i
NOTE