Details：RS232/422/485 Fiber Optic Modem
This 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. ZBC-modem 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:
uZero-Delay automatic forwarding
uSupporting three types of interfaces: RS232/485/422
uAutomatic detection of serial port rate, judgment and control of
data transmission direction
uWorking wavelength: 850 nm (multi-mode); 1310 nm (single mode)
uMaximum communication rate: 500 Kbps
uOptional optical interfaces: ST/SC/FC
uUp to 2 kilometers in multi-mode transmission and up to 40
kilometers in single mode transmission
uBroad voltage inputs: 5-40 VDC or 85-265 VAC
uThe interface supports 1500W surge protection and 15KV ESD
protection
uExternal power supply
Specifications:
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 | 0-500 Kbps, automatic detection of signal rate |
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 |
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