This document lists specifications for the USB-8501 1-port and 2-port low-speed/fault-tolerant CAN interface device.
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
The following characteristic specifications describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
USB 2.0, bus-powered device
Input voltage |
4.5 V min, 5.25 V max |
Working mode current |
500 mA maximum, 250 mA typical (2 ports), 200 mA typical (1 port) |
USB suspend current |
2.5 mA maximum |
La protection apportée par le USB-8501 risque d'être endommagée s'il est utilisé d'une autre façon que celle décrite dans la documentation utilisateur.
Transceiver |
NXP TJA1055T |
Max baud rate |
125 Kbps |
CAN_H, CAN_L bus lines voltage |
-27 VDC to +40 VDC |
I/O compatibility |
5V TTL compatible |
Number of generic triggers[1] |
2 |
Supported Input Time base frequencies |
1 MHz, 10 MHz, and 20 MHz with auto detection |
Supported Output Time base frequency |
1 MHz |
The USB-8501 offers port-to-port (2-port variant) and port-to-USB (both 1 port and 2 port) isolation.
This voltage is the maximum voltage that can be applied or output without creating a safety hazard.
Connect only the voltages that are within these limits.
Port-to-COM |
-27 VDC to +40 VDC max, Measurement Category I |
Measurement Category I is for measurement performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.
This device is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:
For UL and other safety certifications, refer to the device label or the Product Certifications and Declarations section.
This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:
For EMC declarations and certifications, and additional information, refer to the Product Certifications and Declarations section.
This product meets the essential requirements of applicable European Directives, as follows:
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.
NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.
For additional environmental information, refer to the Minimize Our Environmental Impact web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.
At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.