EKINOX Series
– Hardware Manual
EKINOXV3HM.1.2
Pin #
Name
Description
18
Port C – RS-232/RS-422 – Tx-
Port C serial output RS-232/RS-422
19
Port C – RS-422 – Tx+
Port C serial output RS-422
2
Sync In D
Port D input synchronization
8
Port D – RS-232/RS-422 – Rx+
Port D serial input RS-232/RS-422
9
Port D – RS-422 – Rx-
Port D serial input RS-422
3
Sync In E
Port E input synchronization / Odometer B
10
Port E – RS-422 – Rx-
Port E serial input RS-422
11
Port E – RS-232/RS-422 – Rx+
Port E serial input RS-232/RS-422 / Odometer A
For Ekinox-D, if the internal GNSS receiver is enabled, the PORT B will not be available as it is used
internally by the GNSS receiver. However, the Sync In B signal will still be available.
4.4.3. Electrical specifications
Recommended electrical specifications from -40°C to 75°C.
Parameter
Conditions
Min.
Typ.
Max.
Units
Sync In pins, RS-232 Receivers
Input Voltage Range
-25
+25
V
Input Threshold
Threshold Low
0,6
1,2
V
Threshold High
1,5
2,4
V
Input Resistance
3
5
7
kΩ
RS-232 Transmitters
Output Voltage Swing
Tx loaded with 3kΩ to GND_AUX
±5
±5,4
V
RS-422 Receivers
Input Resistance
Common mode voltage [-7V – 12V]
48
kΩ
Input Differential Threshold
Common mode voltage [-7V – 12V]
-200
-50
mV
Input Hysteresis
30
mV
Port B, C, D, E – RS-422 – Transmitter
Differential Output Voltage
2
V
Common-Mode Output Voltage
3
V
25/46
