TCR51USB:
IRIG Time Code Receiver

The TCR51USB is a perfect alternative for synchronizing computer systems or checking the output of an IRIG generator when no PCI slot or serial port is available
This Product is replaced by TCR180USB-EL - IRIG Time Code Reader

Key Features:

  • Universal Serial Bus (USB)
  • Powered by USB (no extra power supply required)
  • Receiver status LEDs
  • Buffered hardware clock
  • Connectors for IRIG AM and IRIG DCLS
  • Plastic Case
  • 2 years warranty

The TCR51USB was developed for computer systems with USB connection. TCR51USB serves to receive and decode modulated (AM) and unmodulated (DC Level Shift) IRIG and AFNOR time codes. AM-codes are transmitted by modulating the amplitude of a sine wave carrier, unmodulated codes by variation of the width of pulses.

IRIG Time Code Receiver TCR51USB

Automatic gain control within the receive circuit for modulated codes allows decoding of IRIG signals with a carrier amplitude of 600 mVpp to 8 Vpp. The input stage is electrically insulated and has an impedance of 50 Ω, it is accessible via the SMBconnector in the housing of TCR51USB.

The unmodulated time codes must be connected to the second SMB connector. An onboard photocoupler insulates the internal receive circuit.

Software running on the computer can read out information regarding date, time and status of the IRIG receiver. Access to the board is made via writing to/reading from I/O ports. It is possible but not necessarry to let the board generate periodic hardware interrupts on the USB Bus.

The microprocessor system of TCR51USB is equiped with a Bootstrap-Loader Flash-EPROM. These features enable updating of the onboard software.