485 switch signal modules, digital acquisition module, point to point transmission Features C2000 MDS44 type switch for the RS485 point to point transmission module, switch signal can be transmitted via RS485 remote network, can completely replace the existing cable-based solutions for signal transmission program. MDS44 with an RS485 communication port, 4 digital inputs (DI) and 4 digital outputs (DO), DO can be output normally open (NO), normally closed (NC) two states (which can be defined from the initial power state). MDS44 pairs can be four groups RS485 input and output signals via the transmission network to a PLC or DCS control system. By using MDS44, remote sensor signal can be accurately transmitted via the existing RS485 network to the local controllers or display panels. 5-year warranty. Features: → 4 digital inputs; → 4 digital outputs; → physical signal transmission via RS485; → in pairs, one Lord, one point from MDS44 switch between transmission; → I / O and system completely isolated; → RS485 Communication interfaces provide optical isolation and surge protection 600W per line; → power with good overcurrent and overvoltage, against reverse polarity protection; → rich indicators and comprehensive view of the state, timely troubleshooting; → easy to install. 485 switch signal modules, digital acquisition module, point to point transmission technical parameters of digital inputs DI 4 DI way dry contact input overvoltage protection is less than 60V, less than 100mA overcurrent output interface DO 4 Digital Form C relay contact capacity DO 2A / 30VDC 1A / 125VAC DO have lightning protection 600W, over voltage less than 60V, less than 500mA overcurrent parameters Interface type RS485 serial communication Baud rate 9600 Data bits 8 Parity None Stop bits 1 Flow Control None Serial Communication Protocol Modbus Rtu serial port ESD protection 600W lightning protection 1.5KV serial port over current, over voltage less than 240V, less than 80mA power parameters power specifications 9-24VDC (recommended 12VDC) Current 200mA @ 12VDC power consumption less than 2W 1.5kW power surge protection overvoltage, flow 60V, 500mA working environment temperature, humidity -25 ~ 85 ℃, 5 ~ 95% RH, non-condensing Storage temperature and humidity -60 ~ 125 ℃, 5 ~ 95% RH, non-condensing other sizes 72.1 * 121.5 * 33.6mm Warranty 5 year warranty 5, Kang Snyder (KonNad) Company profile and advantages: 1) The company has 14 years experience in research and development, with about a hundred people R & D team; 2) there are over one million products online live operation; 3 ) Registered capital: 13,760,000; 4) has applied for a year in the 2013 patents and software copyrights over 30; 5) the company has four research and development department, as many as 80 people R & D team; 6) Marketing Center Office an area of ??over 2,000 square meters. Kang Snyder (KonNad), founded in 2000, Shenzhen City in the Innovation Automation System Co., a subsidiary of the famous brand. Kang Snyder (KonNad), products include embedded device networking module, serial servers, I / O networking products, serial converters, engine room monitoring, and other five major product lines, nearly 100 products. Our products are widely used in coal mine monitoring, power monitoring, security / access control, smart hotel, building automation, retail / POS, industrial automation, telecommunications, finance, transportation, medical, communications and other industries, providing our customers with the most cost-effective and stable reliable serial communication, serial device networking and remote IO acquisition and control of a comprehensive solution. 6, the product sale: 1, you buy the product under normal use of the product, usually, from the date of purchase and provide free replacement warranty from raw materials or the production process caused by quality problems. a, with casing products: warranty 5 years; renewal b within three months, without enclosure products: 1 year warranty; within a month to get a new c, power supply: 2 year warranty, the warranty period once by the company other than maintenance personnel repaired or changed product, or improper installation, improper input voltage, improper use, the reasons for accidents or natural disasters caused by the failure of the product is not a new one, the warranty. 3, the company renewed or repaired products are 90 days warranty. 4, all the new ones, warranty or repair of products, users risk freight and shipping time commitment. Warranty period or does not meet the conditions of the product warranty, the company provides maintenance fees.