RS-485 solution
Introduction
Mainstream RS-485 fiber optic modem is with two optical fibers connection, we can customize dual fibers modem and single fiber modem, moreover, single mode modem and multimode modem are also available for customization. At the same baud rate, our RS485 fiber optic modem can communicate with RS-432 fiber optic modem directly without extra RS-232 to RS-485 converter, at the same time, point to point connection, bus connection, electric to fiber star connection and fiber to fiber star connection are available.
The main type of our RS-485 fiber optic modem is wall-mounted type and miniature type, DIN-rail type is also available for customization. Wall-mounted type is default type.
The following is basic connection of our RS-485 fiber optic modem:
Conventional connection of RS-232 and RS-485 fiber optic modem:
Customized connection of RS-232 and RS-485 fiber optic modem:
Application field
** Water conservation projects
** Irrigation works
** Smart grid
** Fire control
** Industrial Controls
** Intelligent Transportation Systems (ITS)
** Industrial Networking
** Supervisory Control and Data (SCADA)
Technical Specification
OPTICAL |
|
Number of Fibers |
1 or 2 |
Wavelength |
1310/1550nm (SM); 820/1310/1550nm (MM) |
Fiber Type |
Single fiber, dual fibers |
9/125μm(SM); 62.5/125μm(MM) |
|
Distance |
0-20km (SM); 0-2Km (MM) |
Connector Type |
ST/FC/SC PC |
DATA |
|
Number of Channels |
1 |
Interface |
RS-485 |
RS-485 Working Rate |
0-1Mbps |
Connector Type |
Terminal (485+, 485-) |
GENERAL |
|
Operating Temperature |
-40 -70˚C / -40-+158ºF |
Operating Humidity |
0-95% non-condensing |
Mean Time Between Failure (MTBF) |
> 70,000hrs |
Power Supply Adaptor |
AC100-240V 1.8A 50-60Hz |
Power connector |
Terminal |
Enclosure Color |
Silver |
Dimensions (L× W×H) |
Wall mount: 135mm×116mm×36.4mm |
Miniature: 69.5 mm×75.5 mm×24 mm |
|
DIN-rail: 72mm×59mm×44mm |
|
Detailed application of RS-485 fiber optic modem:
1. Point to point connection:
2. Bus connection:
3. Electric to fiber star connection:
4. Fiber to fiber star connection:
5. Multi mode to single mode convertion and connection:
6. Dual fiber to single fiber convertion and connection.
This is our main strength.