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What’s so hot about Send Data Control (SDC)?

As operating systems become more complex, it is increasingly difficult to control an RS-485 driver with standard software and the RTS line. This is especially true in Windows and multi-tasking operating systems.

With B&B’s Automatic Send Data Control circuit, driver control is in the converter hardware, so you don’t have to work with software at all. The circuit monitors data flow and enables the driver during transmission and automatically disables it when no data is being sent. There is no need to rework software or install new drivers.

Most B&B Electronics RS-232 to RS-485 converters and RS-485 serial cards include Automatic Send Data Control.


 

Home > Products > Serial Connectivity > PCMCIA Cards

 Add serial or parallel ports to your laptop

Many laptops have no serial or parallel ports, just a long thin PCMCIA card slot. These reliable and cost-effective cards allow your laptop to connect to serial or parallel devices and are ideal for field service and configuration. Ruggedized models have a permanently attached connector cord and enhanced dust and moisture shielding for heavy-duty use.

All models support WIN 95, 98, ME, NT, 2000, XP, Vista, CE, Linux and OS/2 and pocket PC. RS-485 models have Automatic Send Data Control. Model SPP-100, parallel port unit, supports IEEE-1284 standard for high speed EPP (Enhanced Parallel Port) communication. Standard uni-directional and bi-directional port modes are also supported.

Unique Benefits:

  • Add 1 to 4 ports to your laptop
  • Ruggedized models available
  • RS-232 and RS-422/485 communications
  • Parallel card offering
  • Low power requirements

Ideal for these applications:

  • HVAC - used for data collection and configuration
  • Mobile Applications
  • Data collection
  • Setup and configuration
  • Control

 

Model Number Interface Ports Connector Max Baud Rate Special Features   Price
SSP-100
RS-232 1 DB9 Male 921.6 kbps One port  
$120.00

DSP-100
RS-232 2 DB9 Male 921.6 kbps Two ports  
$180.00

QSP-100
RS-232 4 DB9 Male 115.2 kbps Four ports  
$300.00

SSPR-100
RS-232 1 DB9 Male 921.6 kbps Ruggedized, cable-attached  
$140.00

DSPR-100
RS-232 2 DB9 Male 921.6 kbps Ruggedized, cable-attached  
$200.00

SSP-200/300
RS-422/485 1 DB9 Female 921.6 kbps Send data control  
$150.00

DSP-200/300
RS-422/485 2 DB9 Female 921.6 kbps Send data control  
$210.00

QSP-200/300
RS-422/485 4 DB9 Female 115.2 kbps Send data control  
$320.00

SPP-100
Parallel 1 DB25 Female 700 kbps IEEE 1284 EPP  
$120.00

 

 

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