Irig-B - GE B90 UR Series Instruction Manual

Low impedance bus differential system

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3.2.8 IRIG-B

IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices within

1 millisecond. The IRIG time code formats are serial, width-modulated codes that can be either DC level shifted or ampli-

tude modulated (AM). Third party equipment is available for generating the IRIG-B signal; this equipment can use a GPS

satellite system to obtain the time reference so that devices at different geographic locations can be synchronized.

Figure 3–24: IRIG-B CONNECTION

Using an amplitude modulated receiver causes errors up to 1 ms in event time-stamping.

B90 Low Impedance Bus Differential System