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Model TC1520     

RS-422/RS-485 (4 wire)   Asynchronous Fiber Optic Modem 




Features

  • Async Data Rates Up to 500 Kbps 
  • RS-422, 2 or 4-wire RS-485
  • Detachable Terminal Block Connectors
  • Distances up to 20km
  • Multimode or Single Mode (850/1300/1550nm)
  • Six Diagnostic LEDs
  • Sturdy Compact Metal Case
  • Regular and Wallmount Base
  • High Temperature (-20C to 70C) Version Optional

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 (-20C to 70C), Model TC1520T, is also available.

 

TC1520 Specifications

Data Rates
Asynchronous up to 500 Kbps
Optical
Transmitter LED/ELED
Receiver PIN
Wavelength 850nm/1300nm multimode
  1300nm singlemode
Fiber Optic connectors ST (FC optional)
Loss Budget 15dB multimode 850nm/1310nm @62.5um
  15dB single mode
1310nm @9um
Electrical
Connector DB25 Female
TC1520 RS422/RS485 (DCE/DTE)
System
Bit error rate 1 in l09 or better
Power
Power source 9 to I2VDC @300ma
optional: 115 or 230VAC with external power cube
Temperature
Operating -100C to 500C
Hi-Temp (optional) -20C to 70C
Storage -400C to 900C
Humidity 95% non-condensing
Physical
Stand Alone Unit Height (2.24 cm) 0.9"
  Width (10.16 cm) 4.0"
  Depth (7.87 cm) 3.1"
  Weight (93.6 gm) 3.3 oz.

Applications

The TC1520 is typically used to link various process control systems in manufacturing plants, refineries, etc. In addition, it is often used to connect Remote Terminal Units to SCADA hosts. They are also frequently used in harsh environments because of its fiber optic benefits. This makes it 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.

 
Typical Application
(Application Questions)

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.

 

  

    


 

 
 

NOVA Electronics

Tel: 661-294-0963   Fax: 661-294-0975  

 Email: TechSales@novaca.com

 url
: http://www.novaca.com

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