Many important industrial environment RS-232/RS-485/RS422 equipment still in use interface design. However, as an electrical interface will be easy for many of electromagnetic interference from the natural world. Many users RS-232/RS485/RS422 fiber modem serial port project to solve EMI problems. and the extension of RS-232/RS485/RS422 serial transmission distance of several kilometers, or even several dozens of kilometers.
A serial port is RS-232/RS-485/RS422 YKDS277H fiber modem.Uses industry-standard design, appearance design support DIN-rail hanging standard installation guide, Installation is simple. YKDS277H able to provide end-to-end transparent RS-232/RS-485/RS-422 serial transmission. As a fiber transmission, is the transmission of optical signals in fiber, there is no electrical conductivity, it has a strong anti-jamming capability. The high-voltage and lightning will not be affected.
Features:
 Optional multi-mode (YKDS277MM), single-mode (YKDS277SM)
Support fiber loop and relay functions, the mainframe (Master), machine (Slave), respectively
Automatic signal detection rate is automatically transmitted Delay
The maximum rate of 500 Kbps
Interface for users to choose from three forms
Multi-mode fiber transmission 2 km, 20 km of single-mode transmission
Communications indicators：
Standards : compliance with the EIA RS-232, RS-485, RS-422 standard
RS-232 signals ： IN,OUT,GND
RS-485 signals ： D+,D-,GND
RS-422 signals ： R+,R-,T+,T-,GND
Fiber-optic signal： IN,OUT
Work : asynchronous, point-to-point
Direction Control : automatic control technology. Automatic identification and data transmission control of the direction
Baud Rate : 0-500Kbps. automatic signal detection rate
Fiber wavelength : 850nm, 1310nm single-mode
RS232 transmission distance : 15 meters, RS-485/422 population 1,200 meters
transmission distance :multi-mode 2 km, 20 km single mode
load capacity : RS-485/422 support for 32 nodes (128 points can be customized)
Interface 1500W Surge protection : protection of 15KV ESD Protection
Power Interface: 8 connector
Optical interface: multi-mode using ST/SC/FC. Single-mode interface using FC/SC/ST
environment indicators：
Working Temperature : -25 ° C to 70 ° C
Storage temperature -40 ° C to 85 ° C
Humidity : 5% to 95% relative humidity
Power indicator：
Input power suppy ： 5-40V wide input voltage
power dissipation ： 2W
Appearance indicators：
length×width×height： 100mm×69mm×22mm
Shell ： Steel
Colors : white
Weight ： 230g |
