Technical Documentation

IRIG-B Daughter Card Overview

CTP bundles support the IRIG interface module, which enables an interrange instrumentation group time code (IRIG-B) signal to be transported through an IP network.

IRIG-B is a special time code transmission format that uses a hybrid analog/digital physical interface. The IRIG-B standard consists of a family of rate-scaled serial time codes with formats containing up to three coded expressions or words. The IRIG-B pulse code contains one frame of 100 elements per second for the time of the year and GPS receiver status. IRIG-B encodes day of year, hour, minute, and second data on a 1-KHz carrier frequency, with an update rate of once per second.

IRIG interface modules are available on the CTP 2000 series. You can configure direction, output high and low levels, and data range for this module.


Published: 2010-03-09