Black Box CL050A-R3, CL412A-M, CL050A-E, CL050-C, CL051A Specifications

...
Connect a Current Loop device
to an RS-232 device.
Connect a Current Loop device
to an RS-232 device.
RS-232Current Loop Interface Converters
© 2007. All rights reserved. Black Box Corporation.
FREE 24-hour Tech Support: 724-746-5500
blackbox.com
FEATURES
• Interconnect a digital 20/30/60-mA unipolar Current Loop interface to an RS-232 interface.
• Units available for active or passive devices or passive-only devices.
• AC powered or interface powered.
• 220-VAC version of the active/passive model is available.
• Switches control duplex, loop current, and operation as either DTE or DCE devices.
We have the ideal Current Loop solutions
for your point-to-point configuration!
OVERVIEW
The RS-232Current Loop Interface Converters are bidirec­tional, self-contained units that enable you to interconnect a digital 20/30/60-mA unipolar Current Loop interface to an RS-232 interface. The converters cannot be used with an analog Current Loop (4 to 20 mA) or bipolar Current Loop.
AC-Powered Active/Passive and Passive-Only Converters
These Active/Passive RS-232Current Loop Interface Converters (CL050A-R3, CL050A-E, and CL050-C) use AC power and act either as active or passive devices on the Current Loop. As active devices, these converters supply 20-, 30-, or 60-mA loop current at 18 VDC for operation. As passive devices, the converters will not supply loop current, but will operate with 20-, 30-, or 60-mA unipolar current at up to 30 VDC.
In contrast, the CL051A RS-232Current Loop Interface Converter operates in passive mode only. It will operate with 60-mA unipolar current at 65 to 130 VDC.
Switch selections enable you to choose half- or full duplex operation; loop current at 20, 30, or 60 mA; and configuring the converters as either DTE (data terminal equipment) or DCE (data communications equipment). Two LEDs monitor data flow.
RS-232Current Loop
Interface Converter
(CL050A-R3)
5/16/2007 #17068
724-746-5500 blackbox.com
Current Loop
device
Device using
RS-232 interface
Current Loop was designed to transfer data in a noisy environment with as much integrity as possible. All featured interface converters include optical isolators in both the transmit and receive loops to keep out electrical interference.
Note that the maximum calculated distance that any of these converters or adapters can be placed from other devices on the Current Loop is based on using 24 AWG and the lowest data rate.
Technically Speaking
Interface-Powered Passive-Only Converters
For full duplex conversion of RS-232 async data to unipolar Current Loop, choose an interface-powered converter (CL412A­M, CL412A-F).
These units operate as passive devices only, and they must connect to the active Current Loop. They derive their power from the RS-232 device, which must provide 12 VDC on pins 6 or 20.
The converters are DTE/DCE selectable. Just flip a switch on the side of the units to configure them to operate as either data terminal or data communications equipment.
Loading...
+ 1 hidden pages