Usb Bus Connection - ZLG USBCAN-4E-U User Manual

Guangzhou ZHIYUAN Electronics Co., Ltd.
Figure 2- 3: Connection between USBCAN-4E-U and other CAN devices

2.5.3 USB Bus Connection

The USB port on the USBCAN-4E-U interface card is compliance with USB2.0 full
speed protocol specification, and can be connected to a PC with USB1.1 or USB2.0
interface.
There are two ways for connecting the USBCAN-E/2E-U interface card to the PC:
 The attached USB cable is connected to the PC's USB port directly; at this time,
it uses bus power supply mode to provide +5V voltage for the USBCAN-4E-U
interface card via the USB port. When 4 CAN-bus channels are enable and in
communication, the current provided via the PC's USB port may not be enough,
and the communication is abnormal, thus the external power supply should be
used at this time;
 The USBCAN-4E-U interface card is connected to the PC via an external USB
bus hub. If a USB hub powered by the bus is used, the USBCAN-4E-U interface
card must use an external power supply (DC +9 ~ +36V, 200mA) and use the
external power supply mode.
User Manual
Date: 2017/03/09
USBCAN-4E-U User Manual
Industrial high performance CAN interface card
©2017 Guangzhou ZHIYUAN Electronics
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