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RS-485 to Fiber Optic Modem
Product Description
The HFD series RS-485 fiber optic modem(Point to point) use the most advanced digital technologies to provide excellent repeatable performance for today’s data systems. It supports transmission of one bi-directional data channel over one multimode or single mode optical fiber. RS232, RS422 and RS485 standards are fully supported. The plug-and-play design ensures ease of installation with no electrical or optical adjustment needed. LED indicators are provided to show the operational status of the unit clearly. The series is available in compact wall mount or 2U chassis card.
The HFD RS-485 Series converter is equipped with a multiple interface circuit that can handle RS-485 serial interfaces and multi-mode or single mode fiber. RS-485 fiber converters are used to extend serial transmission distance up to 2 km (multi-mode fiber) or up to 20-100km (single mode fiber). .Auto Baud Rate Detection The RS-485 Series incorporates a method for automatically detecting the serial signal baud rate by hardware. This is an extremely convenient feature for the user. Even if a device's baud rate is changed, the signal will still be transmitted through the RS-485 to fiber converter without any problem.
Product Features
- Single or dual redundant power supply
- Multimode and single mode solutions
- Switchable 120Ω termination and biasing
- LED indicators provide quick diagnosis of all important system parameters
- Up to 14 units in a 2U chassis
- Compact and 2U chassis card configuration
Typical System Configuration
Specifications：
|
Data |
|
|
Data Formats |
RS232,RS485 |
|
RS232 Data Rate |
115.2kbps |
|
RS422/485 Data Rate |
<512kbps |
|
Bit Error Rate |
<1 x 10-12 |
|
Connectors |
|
|
Data |
Screw Block Terminal |
|
Fiber |
ST, SC or FC (ST fitted as standard) |
|
Environmental |
|
|
Operating Temperature |
-30C---+70C |
|
Storage Temperature |
-40C---+90C |
|
Operating Humidity |
0-95% |
|
MTBF |
>100,000 Hours |
|
Optical |
|
|
Fiber |
Multi mode or Single mode |
|
Wavelength |
MM:850nm,SM:1310nm |
|
Number of fibers |
2 or 1(WDM,Bi-Di) |
|
POWER |
|
|
Power Input |
AC 220V 110v or DC+110V,+5V,+12V,+24V,+48V Option |
|
Mechanical |
|
|
Dimensions |
40(L)×120(W)×90(H)mm DIN Rail |
Model Selection:
|
Model Number |
Description |
Fiber No. |
Fiber Mode |
Fiber Connector |
|
HFD-FO-485-P1M |
Point to point Link,Single Fiber(BI-DI), 2km |
1 |
Multi Mode |
ST/SC/FC |
|
HFD-FO-485-P2M |
Point to point Link,Dual Fiber, 2km |
2 |
Multi Mode |
ST/SC/FC |
|
HFD-FO-485-P1S |
Point to point Link,Single Fiber(BI-DI), 20km |
1 |
Single Mode |
ST/SC/FC |
|
HFD-FO-485-P2S |
Point to point Link,Dual Fiber, 20km |
2 |
Single Mode |
ST/SC/FC |
