Electro Industries/GaugeTech
Doc # E107706 V1.25 5-25
++-Nexus IRIG-B Port
5.23:
IRIG-BB
Connections
IRIG-B is a standard time code format that synchronizes event timestamping to within 1 millisecond.
An IRIG-B signal-generating device connected to the GPS satellite system will synchronize Nexus
1250/1252 Meters located at different geographic locations. Nexus utilizes an UNMODULATED
signal from a satelite-controlled clock (such as Arbiter 1093B). For details on installation, refer to
the User’s Manual for the satellite-controlled clock in use. Below are installation steps and tips that
will help you.
Connect the (+) terminal of the Nexus Meter to the (+) terminal of the signal generating device;
connect the (-) terminal of the Nexus Meter to the (-) terminal of the signal generating device.
-IRIG-B Time
Signal
Generating
Device
GPS Satellite Connection
Figure 5.21: IRIG-B Connection
Installation:
1. Set Time Settings for the meter being installed. From Communicator EXT, Device Profile,
Click Time Settings. Set the Time Zone and Daylight Savings (Select AutoDSTor Enable and
set dates). Click Update Device Profile to save the new settings. (See the Communicator EXT
User’s Manual for details.)
2. Before connection, check that the date on the meter clock is correct (or, within 2 MONTHS of
the actual date). This provides the right year for the clock (GPS does not supply the YEAR).
3. Connect the (+) terminal of the Meter to the (+) terminal of the signal generating device;
Connect the (-) terminal of the Meter to the (-) terminal of the signal generating device.
Troubleshooting Tip: The most common source of problems is a reversal of the two wires. Try
reversing the wires.