
Connector Assignment
6.4 Power-over-CAN (CAN-AIR2-PoC only)
DANGER
The CAN-AIR/2-PoC must be supplied by a limited current source (see chapter 5.1)!
DANGER
Device of protection class III
The CAN-AIR/2-PoC may only be driven by power supply current circuits, that are
contact protected. A power supply, that provides a safety extra-low voltage (SELV or
PELV) according to EN 60950-1, complies with this conditions.
Functional earthing is allowed, but must not conflict with the safety considerations of the
system.
INFORMATION
The Power-over-CAN functionality is only provided in the CAN-AIR/2-PoC.
Device connector: 9-pin DSUB connector, male
Pin Position:
Pin Assignment:
Signal
Pin
Signal
CAN_GND
6
1
reserved
2
CAN_L
CAN_H
7
3
CAN_GND
reserved
8
4
M24
P24
9
5
Shield
Signal Description:
CAN_L, CAN_H...
CAN signal lines
CAN_GND..
reference potential of local CAN physical layer
Shield...
Shielding (connected with case of the 9-pin DSUB connector)
reserved...
reserved for future applications, do not connect!
P24...
optional 24V-power supply voltage, typical 24VDC (min. 8V, max. 32V)
M24...
reference potential of the 24V power supply voltage.
CAN-AIR/2
Hardware Manual • Doc. No.: C.2067.21 / Rev. 1.5
Page 39 of 53
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