Acumen SDR2-CF

  • Record serial data to PC compatible CompactFlash card
  • Supports 2400 to 230.4 kbps
  • Low power – < 1 Watt
  • Separate data and control ports
  • Output predefined strings to trigger readings
  • Supports capture to multiple time stamped files
  • Compact rugged enclosure


SKU: SDR2-CF Categories: ,


SDR2-CF Serial Data Logger

Acumen Instruments DataBridge SDR2-CF Serial Data Logger is another way Acumen Instruments makes it easy to add data storage to any device or system.

The SDR-CF is a compact, rugged device that captures data from any device equipped with a serial port and stores it in a PC-compatible file on a compact Flash card.

No programming required.

The SDR-CF is a hardware solution that is ready to deploy. Unlike embedded computers, no programming is required, and you don’t need to install special application software. Configuration can be changed using any computer’s serial port.

Because the SDR-CF records data to PC-compatible files, your files appear on a standard drive letter and can be read with any common CompactFlash card reader.

If you already use a computer or laptop for data collection, the SDR-CF is a convenient drop-in replacement.

Low power consumption.

The SDR-CF consumes less than 1 Watt, offering significant power savings over PC’s, laptops, and embedded PC’s, so batteries last 10 to 100 times longer and no heat is generated. The SDR-CF operates from a 7-30 VDC power supply, simplifying system integration.

The flexibility you need.

We know every application has unique requirements. For devices that require it, the SDR-CF can send commands to the attached device on initialization, shutdown, or at specific intervals. You also control when files are opened and closed,
how files are named, and date/time stamping. Using the SDR-CF’s configuration port, you can connect to a computer to control and monitor your recording, download files, change recording settings, or communicate with your device using serial passthrough mode.

Industry-standard storage technology.

The SDR-CF gives you access to industry-standard CompactFlash solid-state storage media. You benefit from competitive pricing as well as assured compatibility with your PC.

Options for OEMs.

A board-only version of the SDR-CF, the SDR-OEM-CF, is available for integration with your product. Other OEM features include a remote panel interface connection. Customizations and quantity discounts are also available.



Data rates2400 bps to 230.4 kbps
Handshaking modesRTS/CTS (hardware handshaking)
File formatPC-compatible (DOS FAT16 file system)
Storage device compatibilityDevices conforming to the CompactFlash specification
Electrical interfaceATA/ATAPI (True IDE Mode)
Storage capacityLimited only by storage device and FAT16 file system
Power requirements7-30 VDC unregulated (under 1 W)
Operating Temperature-40º to +85º Celsius (industrial temperature range)
Physical Characteristics
Dimensions4.875” L × 3.375” W × 1.250” H
(12.4 cm × 8.57 cm × 3.12 cm)
Weight8.5 oz (241 grams) without CF card
EnclosureExtruded aluminum
Serial connectorsDB9 male (DTE data port)
DB9 female (DCE configuration port)
Drive connectorsType I/II CompactFlash connector with ejector
Media Options
Solid-state mediaCompactFlash media – 8 MB to 2 GB
(limited only by FAT16 file system)
Notable Features
Serial download protocolsYModem batch, ASCII text
Power-up modesResume recording w/new filename, append to file
Real-time clock functionsScheduled file closings every 1 second to 194 days
Optional date/time stamping of recorded data
Output messages8 256-byte strings
1 second to 194 day output interval
(messages can also be sent at initialization or shutdown)
Device controlSerial passthrough mode
(converts between baud rates if needed)