Project Description
RS232/422/485 Serial to Fiber Converter 20KM
Model Number:HD-R20B
Features:
1.Support RS-232/RS-485/RS-422 ports
2.Support synchronization,point-to-point,point-to-multiple transmission
3.Automatic signal detection rate
4.Prevent electrical interference and chemical corrosion
5.Serial port transmission rate up to 256 KBPS
6.1500W surge protection, 15KV electrostatic protection
7.Support multi-mode 2KM (dual fiber),single mode 20KM (single fiber,dual fiber) product selection
8.Multi-mode transmission distance up to 2KM,single mode transmission distance up to 120KM (customized)
Specification:
|
Fiber index
|
|
|
Wavelength
|
1310-1550nm
|
|
Rate
|
155Mbps
|
|
Tx power
|
＞-8db
|
|
Rx sensitivity
|
＞-24db
|
|
Fiber connector
|
SC（FC/ST optional）
|
|
Data index
|
|
|
Standard
|
Meets EIA RS-232,RS-485,RS-422 standards
|
|
Physical interface
|
7-Pin industry terminal
|
|
Baud rate
|
50 bps to 256 kbps (support non-standard baud rate）
|
|
Simultaneous use of ports
|
2
|
|
RS232
|
3-wire system（RXD、TXD、GND）、full duplex、point to point communication Maximum communication distance is 15 meters
|
|
RS485
|
2-wire（A、B）、half-duplex、point to mutiple points communication The maximum transmission distance is 1219m, transmission rate is inversely proportional to the transmission distance
|
|
RS422
|
4-wire, full duplex The maximum transmission distance is 1219m, transmission rate is inversely proportional to the transmission distance
|
|
RS485 circuit index
|
|
|
RS-485 terminal resistance
|
N/A、120 Ω 和 120 kΩ
|
|
Power index
|
|
|
Input current
|
1A
|
|
Input voltage
|
5V
|
|
Overload current protection
|
Support
|
|
Power consumption
|
<1.5W
|
|
Mechanical index
|
|
|
Chassis
|
Aluminum alloy
|
|
Product net weight
|
0.25kg
|
|
Installation
|
Desktop
|
|
Other index
|
|
|
Operating temperature
|
-20°C ~75°C
|
|
Storage temperature
|
-40°C ~85°C
|
|
Working humidity
|
5 to 95%（non-condensing）
|
|
Working life
|
＞100,000 hours
|
