Conventions; Conventions Used In This Document; Conventions For Signal Names; Conventions For Signal Types - ABB Ability Naveo Pro GW 1.0 Operation Manual

10 A B B A B I L I T Y ™ N AV E O ® P R O G AT E W AY
—

2 Conventions used in this document

2.1 Conventions for signal names

Convention
GND
#
+
-
3.3
5
NC
Reserved

2.2 Conventions for signal types

Convention
I
O
IO
P
A
NC
Reserved
Description
Ground
Active low signal
Positive signal; Positive signal in differential pair
Negative signal; Negative signal in differential pair
3.3 V signal level
5 V signal level
No Connection
Use is reserved to ABB
Description
Signal is an input to the system
Signal is an output from the system
Signal may be input or output
Power and Ground
Analog signal
No Connection
Use is reserved to ABB