Low speed data fiber modem
- Payment Type:
- L/C, Paypal, Western Union
- Incoterm:
- FOB, EXW
- Min. Order:
- 1 Piece/Pieces
- Min. Order:
- 1 Piece/Pieces
- Delivery Time:
- 4 Days
- Transportation:
- Ocean, Land, Air, express
- Port:
- Shenzhen, Yantian
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Contact Now| Place of Origin: | China |
|---|---|
| Productivity: | 50000 |
| Supply Ability: | 50000 |
| Payment Type: | L/C,Paypal,Western Union |
| Incoterm: | FOB,EXW |
| Certificate: | CE,FCC,ISO9001 |
| HS Code: | 8517622990 |
| Transportation: | Ocean,Land,Air,express |
| Port: | Shenzhen,Yantian |
Overview
Fiber Optic Modem is a network terminal used for converting optical signals to electrical signals. It has the characteristics of large communication bandwidth and fast network speed.
NT-S277 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:RS-232/485/422
Automatic detection of serial port rate judgment and control of data transmission direction
Working wavelength:850nm(multi-mode):1310nm(single mode)
Maximum communication rate:500kbps
Optional optical interfaces: SC/ST/FC
Up to 2 kilometers in multi-mode transmission and up to 40 kilometers in single mode transmission
Broad voltage inputs:5~40V DC or 85~265VAC
The interface supports 1500W surge protection and 15KV ESD protection
External power supply
Specifications
|
Parameter |
Specifications |
|
Standard |
In compliance with EIA RS-232 and RS-485 standards |
|
RS232 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 |
0-500Kbps,automatic detection of signal rate |
|
Fiber wavelength |
Multi-mode:850nm;single mode:1310nm |
|
Transmission distance of electrical interface |
RS-232 interface:15 meters:RS-485/422 interface:1200 meters |
|
Transmission distance of optical interface |
Multi-mode:2KM; single mode:20KM |
|
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 |
69mm(W)*100mm(D)*22mm(H) |
|
Operating temperature |
-25℃ to 70℃ |
|
Maintaining temperature |
-40℃ to 85℃ |
|
Humidity |
5%-95%RH |
|
Input power |
12V input |
|
Power Consumption |
2W |
Application
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