Minimum HUB4CAN type world, separated only zero delay CAN light drag four HUB (hub) use CAN light every 1 drag 4 HUB (Model HUB4CAN), drive capability for increasing the CAN signal to extend communication distance, and can also be used CAN form a star network. HUB4CAN also achieve the photoelectric isolation between the CAN's on, the next crew. The two installation and performance HUB4CAN of have a CAN port of a PC CAN port and four lower machine. The lower machine HUB4CAN side CAN (0), CAN (1), CAN (2), CAN (3) can be respectively connected to the the four lower machine CAN mouth. HUB4CAN support communication rate 0-500Kbps, without any set automatically adapt to the isolation voltage 2500V. HUB4CAN support any version of the CAN protocol communication, including CAN2.0 and CAN1.0. HUB4CAN has both anti-lightning protection function to absorb the surge current. HUB4CAN unique Boshi zero-latency intelligent conversion technology, so ensure that it meets all CAN communication software. When the the four lower machine CAN mouth one, two or even three CAN short circuit or burned out, HUB4CAN PC CAN still remaining normal under the CAN-bit machine communication. HUB4CAN networking to ensure that the damage to one or more nodes does not affect other nodes communicate properly! HUB4CAN can be stacked, upcoming multiple HUB4CAN of PC CAN end parallel can, can the public a single +5 V supply. The function of the the various lower machine CAN port of HUB4CAN (0, 1, 2, 3), is exactly the same. The the three outline drawing HUB4CAN the appearance of size of DB-25/DB-25 adapter box, as shown. CAN isolation HUB is the world's smallest. The next bit the four pin assignments HUB4CAN the machine side (DB-25 pin terminals) pin assignments are as follows: (+ A CAN-H,-B, said CAN-L) 2 3 5 6 8 9 11 12 22 (positive power supply) (16) + A0-B0 + A1-B1 + A2-B2 + A3-B3 GND (+5 V) (0 # CAN) (1 # CAN) (2 # CAN) (3 # CAN) HUB4CAN the host computer side (corresponding terminals) pin assignments are as follows: HUB4CAN (DB-25 pin) 5 6 7 22 16 + A-B GND GND +5 V CAN signals power HUB4CAN external +5 V power supply required voltage 4.5 ~ 5.5V (current consumption <100mA). At each end of the upper and lower bit machine for an independent power supply to ensure mutual isolation.