18
DPS70
Communication
The types of communication available to the DPS70 are Controller Area Network
(CAN) communication, USB host, USB device, RS232 and Ethernet.
5.1. CAN
There are two CAN buses on the DPS70 that meet the CAN2.0B specification.
All buses can be hardware configured for an internal 120 Ω termination resistor.
The resistor is not populated in the default version.
The following table provides specifications for the CAN:
CAN Specification
Item
Min
Nom
Max
Unit
Over-voltage
30
V
On-board terminator (optional)
120
Baud rate
125
250
500
Kbps
Capacitance
33
pF
5.2. USB Host
The DPS70 supports one USB Host port capable of high speed USB 2.0. The
USB Host port will support a device with current drain not exceeding 500mA.
The following table provides specifications for the USB host:
USB Host Specifications
Item
Min
Nom
Max
Unit
Communication speed - High Speed
480
Mbps
Capacitance of I/O to ground
2.5
3.5
pF
Reverse standoff voltage
(note 1)
5
V
Note 1: USB connectors are not rated to survive a short to vehicle battery.
5. Communication
