Applications
The TC1520 RS-422/RS-485 Asynchronous
Fiber Optic Modem are often used to link various process control
systems in manufacturing plants, refineries, etc. It is also used to
connect Remote Terminal Units to SCADA hosts or controllers in Utility
environments.
The TC1520 work well in harsh environments because of their fiber
optic benefits. This results in a simple and low cost solution to
electrical/radio frequency interference and ground loop problems. Data
security is also assured because fiber optic cable is virtually
impossible to tap without detection.
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Description
Versatile
and competitively priced, the TC1520 fiber optic modem supports RS-422 and
2-wire or 4-wire RS-485 interfaces. It
transmits asynchronous data at speeds up to 500 Kbps.*
Because the TC1520 can be multi-dropped on the electrical side (RS-485),
it is ideal for poll and response applications such as SCADA and Process
Control. It will support one
Remote Terminal Unit via the RS-422 interface.
Six visual indicators are provided for troubleshooting: Power, RS-485,
Driver Mode, Receive Data, Transmit Data, Optic Sync.
Four DIP switches are provided for RS-485 Transition Time and
Termination Resistor settings.
The TC1520 is compatible with all popular types and sizes of multimode
(850nm/1300nm) or single mode (1300/1550nm) fiber optic cable.
Fiber optic connectors are ST or FC.
The electrical connectors are terminal blocks.
Power is 12VDC or 115/230VAC with an external power cube.
An extreme temperature version (-20°C to 70°C), Model TC1520T, is
also available.
*Contact factory for higher requirements
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Technical
Specifications
| Data
Rates |
| Async |
up
to 500 Kbps |
| Optical |
| Transmitter |
LED,
ELED |
| Receiver |
PIN
Diode |
| Wavelength |
850nm,
1300nm Multimode
1300nm, 1550nm Single Mode |
| Fiber
Optic Connectors |
ST
or FC |
Loss
Budget*
(850nm, 1300nm,
1550nm) |
Multimode
(62.5/125µm): 15dB
Single Mode (9/125µm): 15dB
|
| Electrical |
| Interface |
(DCE)
RS-422 , OR
RS-485 (2 - 4 - wire) |
| Connector |
Terminal
Blocks |
| System
|
| Bit
Error Rate |
1
in 109
or better |
* Contact factory for higher requirements
|
|
| Visual
Indicators |
LED,
PWR, TD, RD, RS-485, Drive,
Mode, Optic Sync |
| Power |
| Standard |
12VDC @
200mA |
| Optional |
115/230VAC
(with external power cube) |
|
Temperature
|
| Operating |
-10° to
50°C |
| Hi-Temp
(optional) |
-20° to 70°C |
| Storage |
-40° to 90°C |
| Humidity |
95% non-condensing |
| Physical
(Wallmount Base) (Details) |
| Height |
(2.24
cm) 0.88" |
| Width |
(10.05
cm) 3.96 |
| Depth |
(4.4
cm) 1.73" |
| Weight |
(93.6
gm) 3.3 oz. |
|
|
