FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office

FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office
FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office
FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office
FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office
FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office
FOURSTAR RS485 RS422Universal Optical Isolation Ultra Remote Driver MCU Communication Port Optical Isolation Ultra Remote Driver in Industrial Computer Accessories from Computer Office

Product Specification

Brand Name: Cisoar

Type: Industrial Computer Accessories

Color: Gray

Model Number: CAN-TTLG

Package: Yes

Plug Type: US Plug

Description:

CAN-TTLG SCM light-isolated ultra-long-range driver

SCM system has been widely used in various industries, its interface (TTL level, TXD, RXD, GND,) usually use RS485 or RS422 interfaces to achieve long-distance communications. The communication distance is 1.2 km only. (DE) is needed for network. The CAN-TTLG light-isolated ultra-long-range driver witch is developed by Fourstar completely solve the problems above. We use the CAN (Controller Aera Network) bus technology witch does not change the UART communication protocol to extend the SCM’s communication distance to 10 km, can ensure it suits for all the RS232/RS485 software without changing the original software. Technical details: 1, optical isolated voltage: 1000 VDC (up to 3000 VDC, a statement is required when ordering) 2, Power: external 5 V, 1W DC power supply 3, communication distance: 10 km (4800bps), 5km (9600bps), 2km (38400bps), 600m (115200bps) 4, communication rate: a maximum 230 kbps, the rate is automatically adaptive without setting 5, communication protocol: Using half-duplex CAN bus without change the original UART protocol (software) 6, the network nodes: can compose the multi-machine communication network with 110 nodes 7, transmission lines: twisted pair witch is 0.75 mm2 above, the cross-sectional area of twisted pair should be more than 1.5 mm2 and the capacitance between line should be less than 60 pf / m when the length of lines are more than 1km 8, interface protection: CAN port: Anti-lightning and anti-surge protection, repeatability surge capacity: Ipp = 100A (10/700us, 4KV) standards: ITU-TK20/21, VDE 0433. RS232 port: surge protection. Power port: 500 W TVS anti-lightning protection, anti-polarity of power protection. 9, Dimensions: 85 × 55 × 25 10, installation: installation of 35 mm standard rail and bolt hole 11, Weight: 100g 12, the working temperature: -20 ~ 75 ℃ 13, the humidity: 0 to 90% How it works : As shown, SCM’s TXD (send data, TTL level) and RXD (receive data, TTL level) signals make circuit into shape and drive through TTL-level. the equipment will not receive the signal witch is sent by its own and the CAN signal witch is output by CAN bus driver after photoelectric isolation. The working power of this product can be provided by the equipment or obtained separately from external. Isolated power modules are used in the internal of the product,

Description: The two pairs of CANH and CANL terminal is to facilitate the connection with bus in networking. This product has provided two optional external power-input channels. The power terminals and connecting the 1-pin and 5-pin of TTL socket to 5V Power both work. They are very convenient for some TTL mouth witch is with 5V power-supply equipment (such as PLC). The TTL signal of this product is the positive logic signal, the level compatible with 5V and 3.3V level. The link of CAN-TTLG and SCM’s serial communication mouth: Connect send with receive, receive with sent, ground with ground.

2, SCM multi-machine communication CAN-TTLG can realize the multi-machine communication network witch is composed of 110 SCM nodes; the largest communication range is 10 km (4800bps). The address of each node is determined by the procedures in the equipment.

Notes: 1, The cut-off size of communication lines is often overlooked by the users. Because the CAN receiver’s effective level (0.8 V) is higher than the RS485 receiver’s (0.2 V), the requirement of communication lines’ cross-sectional area is high. And farther the communication distance is, the greater the cross-sectional area should be. The twisted pair best be the one whose impedance is 120 Europe, and the capacitance between line is less than 60 pf / m. The following table is the twisted pair’s minimum cross-sectional area of different communication distance:

These are the cross-sectional areas of communication lines witch are required by the Fourstar’s CAN interface product with unique driven-enhanced circuit. The communications lines’ cross-sectional area may be doubled from the table values as for other companies’ CAN interface products. 2, When use shielded twisted pair, please connect the shield to the "FG" terminal of CAN-TTLG, and to land finally 3, The cable’s length of CAN-TTLG to bus(extension) cannot be more than 15 m, otherwise they will have echoes, affecting the normal communication of system. Of course, there will be no extension problem if you use two pairs of CANH, CANL video for connection as the map showing. 4, For the setting of terminal resistance, the role of terminal resistance is to eliminate the waveform distortion caused by the reflection of signal in the communication lines. Please turn the termination resistor setting switch K witch is on the CAN-TTLG of the communication line’s terminal and satrt to "R" (connect 120Ω terminal resistance), the terminal resistance setting switch K of other CAN-TTLG to "OFF" (terminal resistance is unacceptable). 5, The second-line half-duplex communication way is used in this product, the address of node is determined by the equipment’s memory. The programming method is completely same with second-line half-duplex RS485. CAN bus controller agreement is not used. 6, This product support positive logic TTL communication interface, that is HIGH (+5V) is logic "1", low (0V) is logic "0". If the equipment is negative logic TTL communications interface, you should tell us when ordering.

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