5 Installation
5.3 Cable preparation
36
MICRO PANEL XV400 10.4"/12.1"/15"
12/2010 MN04802010Z-EN
www.eaton.com
5.3.8
CAN
The CAN interface is electrically isolated.
Tab. 16 Pin assignment of CAN interface in accordance with CiA
Wiring
Shielded twisted pair cables must be used.
Tab. 17 Cable specifications
Fig. 19 CAN interface (9-pin, D-Sub, male, UNC)
Pin
Signal
Assignment
1
-
nc
2
CAN-L
Bus line (dominant low)
3
CAN-GND
CAN Ground
4
-
nc
5
-
nc
6
GND
Optional CAN Ground
7
CAN-H
Bus line (dominant high)
8
-
nc
9
-
nc
Pin 3 (CAN-GND) and 6 (GND) are connected internally in the device.
nc: Pins 1, 4, 5, 8 and 9 must not be connected.
The CAN bus drivers are fed internally with power.
No power supply for third-party devices is implemented on the CAN connector.
1 2 3 4 5
6 7 8 9
Cable specifications
Rated surge impedance
120
Ω
Permissible surge impedance
108…132
Ω
Capacitance per unit length
< 60 pF/m
Core cross-section / max. cable length
≥
0.25 mm
2
/ 100 m
≥
0.34 mm
2
/ 250 m
≥
0.75 mm
2
/ 500 m
