Avnet SmartEdge - Isolated Canbus; Isolated Digital I;O

SmartEdge Industrial IoT Gateway
User Guide
http://www.element14.com/gateway Page 12
ISOLATED CANBUS
WARNING! DO NOT INSTALL DCIN PLUG INTO CANBUS PORT! THIS WILL DESTROY THE CANBUS DRIVER AND
TERMINATION RESISTOR!
 MCP2515 CAN Controller
 Recommended Cable: Shielded Twisted Pair, 120ohm impedance (Belden 3105A)
 Route multiple device connections as daisy chain, with termination only at endpoints
 Jumper selection for: CAN termination (see section 3.3)
CAN Terminal Block Connections
Signal
CANbus signal
G
GND
L
CANL
H
CANH
ISOLATED DIGITAL I/O
 Dual individually isolated blocks A & B, with each block having two (2) inputs and two (2) outputs
 Digital Outputs:
 Outputs are open drain
 High Level: up to 60V can be applied to Digital Output
 Low Level: 1.5V max @ 500mA
 Digital Inputs:
 Inputs have internal pull-down of 6.8kOhm.
 High Level: minimum of 5V @ 1mA at the input terminal, 60V @ 10mA max
 Low Level: maximum of 1V at the input terminal
Digital I/O Terminal Block Connections
Label
Digital I/O Signal
Ox
Output x
Ix
Input x
G
Ground
Oy
Output y
Iy
Input y