SPECIFICATIONS

Brand Name: NONE

EU LVD Voltage: Low voltage: Below 50Vac or 75Vdc

High-concerned chemical: none

Origin: Mainland China

Voltage: none

DB9 CAN System Bus Termination Resistor

Built-in 120Ω D-sub 9-pin 120Ω Terminal CAN Adapter CAN Terminal, 120Ω, DB9

It contains a 120Ω termination resistor between CAN High / CAN Low pins (Pin 2 and Pin 7). Designed specifically for automotive CAN bus communication, it can be directly used with ZLG-USBCAN, VECTOR-CAN case, Vechle SPY and other devices.

The Importance of CAN Bus Termination Resistors

With the increasing popularity of CAN buses in various industries, USB CAN has become the mainstream of CAN bus equipment, widely used in automotive electronics, industrial and other control fields. It can be used for the development, testing, management and maintenance of CAN networks, as well as recording, sending, receiving and analyzing CAN bus data. However, when we look at the internal structure of USB CAN, we may find that there is a 120Ω resistor on the core board. Let's take a look at the role of the 120Ω resistor.

The 120Ω resistor in USB CAN is indispensable. In USB CAN, this resistor can provide a stable physical link and absorb reflections at the endpoints. When we use USB CAN for single-node loopback test, the 120Ω resistor must be present. We need to make it form a complete loop to complete the loopback test, otherwise it cannot be realized.

We also need to know that every detail design of USB CAN equipment is the result of thousands of tests. This is also an industry standard that is defaulted to ensure the safety of CAN buses.