Model 2018
RS-232 to 20mA Current Loop Converter (DB-25 to DB-25)
This Optically Isolated Converter has Multiple Functions



Need help? Call Patton at +1 301 975 1000 or email sales@patton.com.

Features & Benefits
  • Operates Actively or Passively
  • Data Rates from 50 bps to 19.2 kbps
  • Range to 4 Miles (6.4Km) over Two 24 AWG (.5mm) Twisted Pair
  • No AC Power Required; Draws Necessary Power for (Passive) Operation from RS-232 Interface
  • Optically Isolated on Line Side
  • DB-25 Connectors on Both Ends
  • External DCE/DTE Switch
  • Two Units Work Together as Optically Isolated RS-232 Distance Extenders


Overview
The Patton Model 2018 is an optically isolated, multi-function RS-232 to 20mA current loop converter: Hook it up to an active 20mA current loop circuit and it's a passive converter. Hook it up to a passive 20mA current loop circuit, add DC power to one of several DB-25 interface pins, and it's an active converter. Connect two units together, supply DC power to one interface, and it's an optically isolated RS-232 distance extender.

The Model 2018 supports data rates to 19.2 Kbps, and current loop distances to 4 miles (6.4Km) over two twisted pair. The Model 2018 connects directly to either the RS-232 interface or the 20mA current loop interface using a male or female DB-25 connector. An external DCE/DTE switch eliminates the need for RS-232 crossover cables.

Specifications

Interfaces: Asynchronous
Transmit Line: 19 - 26 AWG (.9mm - .4mm)
Range: 4 miles (6.4Km) on 24 AWG twisted pair
Interfaces: EIA RS-232, CCITT V.24 (.5 mm) full duplex, 20mA current loop
Data Rate: 50 - 19.2 Kbps
Isolation: 2500V RMS via opto-isolators on line side
Connectors: Male or female DB-25 on both sides
Temperature Range: 0-50°C (32-122°F)
Altitude: 0-15,000 feet (4.5Km)
Humidity: Up to 95% non-condensing
Power Supply: None required; uses power from NIC data signals
Dimensions: 2.21" L x 0.8" H x 2.10" W (5.6 x 2.0 x 5.3 cm)
Weight: 1.7 oz.


Ordering Information Email: sales@patton.com    Tel: +1 301-975-1000
2018F-M RS-232 TO CURRENT LOOP CONV.
2018M-F RS-232 TO CURRENT LOOP CONV FM
 

Related Information
Catalogs (PDF) -- Requires Adobe Acrobat to view
Patton Electronics Product Line Catalog #21 (High resolution, print quality) August 25, 2008
Patton Electronics Product Line Catalog #21 (Low resolution, for dial-up users) August 25, 2008

Certifications (PDF) -- Requires Adobe Acrobat to view
Declaration of Conformity - LVD - SRMs & Interface Converters March 12, 2009
Declaration of Conformity - EMC - SRMs & Interface Converters March 04, 2009
Declaration of Conformity - EMC - 00109DDL February 23, 1999

Data Sheets (PDF) -- Requires Adobe Acrobat to view
Network Access Solutions Guide November 01, 2000

Manuals (PDF) -- Requires Adobe Acrobat to view
Model 2018 Manual March 31, 1994

News Releases
With Over 1,000 Networking Products to Offer, Patton Publishes Dual Catalogs May 22, 2007
Patton Receives Technology Champion Award February 01, 2006

Tech Notes
Model 2018 Passive or Active Configuration: Don't burn it up! June 12, 1997