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Máy bộ đàm YANTON T-258

Pin Sumitomo Lion 4600MAH
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RS232/422/485 Fiber Optic Modem

Product: RS232/422/485 Fiber Optic Modem

Model: NT-277 Series

RS 232/485/422 Serial Port Fiber Optic Modem

NT-277 is a type of RS-232/RS-485/RS-422 serial port fiber optic Modem. It adopts industrial standard design and its wall type outface design supports DIN-rail standard lead rail installation, featuring easy installation. Presently, many users make use of RS-232/RS-485/RS-422 serial port fiber optic Modem to solve the electromagnetic interference in engineers and to extend the RS-232/RS-485/RS-422 serial port transmission distance to several or even tens of kilometers. NT-277 can provide users with RS-232/RS-485/RS-422 serial port end-to-end transparent transmission. Since signals are transmitted over fibers and these optical signals are free of electrical conductivity, they have strong anti-interference capacity and are immune to high-voltage power or thunders.
 
Features
  • Zero-Delay automatic forwarding
  • Supporting three types of interfaces: RS232/485/422
  • Automatic detection of serial port rate, judgment and control of data transmission direction
  • Working wavelength: 850 nm (multi-mode); 1310 nm (single mode)
  • Maximum communication rate: 12500 Kbps
  • Optional optical interfaces: ST/SC/FC
  • Up to 2 kilometers in multi-mode transmission and up to 40 kilometers in single mode transmission
  • Broad voltage inputs: 5-40 VDC or 85-265 VAC
  • The interface supports 1500W surge protection and 15KV ESD protection
  • External power supply
Specifications
Communication Indexes
Standard
In compliance with EIA RS-232 and RS-485 standards
RS-232 signal
IN, OUT, GND
RS-485 signal
D+, D-, GND
RS-422 signal
R+, R-, T+, T-, GND
Fiber signal
IN, OUT
Working mode
Asynchronous working mode, point-to-point
Direction control
Adopting automatic data flow control technology, supporting automatic judgment and control of data transmission direction
Baud rate
0-12500 Kbps
Fiber wavelength
Multi-mode: 850 nm; single mode: 1310 nm
Transmission distance of electrical interface
RS-232 interface: 15 meters; RS-485/422 interface: 1200 meters
Transmission distance of optical interface
Multi-mode: 2 km; single mode: 40 km
Load capacity
RS-485/422 interface supports 32 nodes (128 nodes customizable)
Interface protection
600W surge protection, 1500V ESD protection
Form of electrical interface
8-pin connector
Form of optical interface
ST interface for multi-mode transmission and FC interface for single mode transmission
 
Environmental Indexes
Operating temperature
-25 to 70
Maintaining temperature
-40 to 85
Humidity
5%-95% RH
Power Indexes
Input power
12V input
Power consumption
2W
Appearance Indexes
Dimension
100mm*9mm*2mm
Enclosure
Iron enclosure
Color
Technology blue
Weight
230g
 
Các sản phẩm khác
 
E1/V.35 optional fiber optical modem (FME-2)
 
2Mbps fiber optic Ethernet modem (FME-T)
 
Fiber Optic Modem (FME) with interface can be V.35 or G.703
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Tin tiêu biểu
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