| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | top-net |
| Model Number: | TOP-MODEL277 |
Quick Details
Specifications
Overview
TOP-MODEL277 is a type of RS-232/RS-485/RS-422 serial port fiber optic Modem. 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. TOP-MODEL277 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: RS-232/485/422
- 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: 500 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
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 | 0-500 Kbps, automatic detection of signal rate | |
Fiber wavelength | Multi-mode: 850 nm; single mode: 1310 nm | |
Transmission distance | RS-232 interface: 15 meters; RS-485/422 interface: 1200 meters; 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 | |
Data interface | 8-pin connector or DB9 | |
Optical interface | FC | |
Dimension | 71mm(W)×94mm(D)×26mm(H) | |
Environmental Indexes | ||
Operating temperature | -25°C to 70°C | |