Electrical Interfaces & Connectors
Isolation domains & Grounding precautions
Following illustration shows the Galvanically Isolated domains and connectors pins as-
signment per domain.
Grounding
Y
Connections to the non-isolated domain interfaces shall be always kept at the same
ground potential to avoid ground currents and possible issues or hardware damages.
Gigabit Ethernet
1 - BI DA+
2 - BI DA –
3 - BI DB+
4 - BI DB –
5 - BI DD+
6 - BI DD –
7 - BI DC+
8 - BI DC –
System Port
A Power Supply NEG –
B Power Supply POS +
I - Digital INPUT 1
F - Digital INPUT 2
L - Digital INPUT 3
P - Digital INPUT 4
K - Digital Inputs common GND
T - Digital OUTPUT 1
G - Digital OUTPUT 2
U - Digital OUTPUT 3
R - Digital OUTPUT 4
H - Digital Outputs common GND
S - “OC” I/O: Dig. out. 5V voltage source
“24” I/O : Dig. out. voltage supply
C - USB VCC max. load 100mA
D - USB DATA +
E - USB DATA –
M - RS232 Tx Data
N - RS232 Rx Data
O - GND connected to housing
Display Output
1 - VSYNC
2 - BLUE
3 - GREEN
4 - RED
5 - HSYNC
6 - Digital GND
7 - I2C CLK
8 - 5V DC
9 - I2C DATA
10 - Video GND
11 - Video GND
12 - Video GND
Isolated Domain 1 :
Ethernet PoE and Power Supply
Isolation up to 1000V
Isolated Subdomain :
Power Supply within Ethernet
Isolation up to 200V
Isolated Domain 2 :
Digital Inputs
Isolation up to 1000V
Isolated Domain 3 :
Digital Outputs
Isolation up to 1000V
Y
Non Isolated domain connected to the
housing.
All interfaces on this domain are gal-
vanically connected to the housing.
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CURRERA R-Series - Hardware Guide Q1 2013
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