EndRun Meridian II, User Manual

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M e r i d i a n I I U s e r M a n u a l 8
C H A P T E R T W O
9 M e r i d i a n I I U s e r M a n u a l
B A S I C I N S T A L L A T I O N
4. Plug the other end into the AC input connector on the chassis rear panel of the Meridian II.
Initially upon power up:
1. The unit will light the Alarm LED for about 10 seconds.
2. Then it will continuously light the Sync LED.
3. When the unit locks onto a GPS signal and begins to decode the timing data and adjust the system
oscillator, the Sync LED will flash very rapidly (about a 6 Hz rate) until the data is fully decoded and
the system oscillator is fully locked to the GPS frequency.
4. Then the Sync LED will pulse at precisely a 1 Hz rate, synchronized to UTC seconds.
NOTE
If your unit has an OCXO (MS-OCXO, HS-OCXO, US-OCXO) or rubidum (Rb, US-Rb) oscillator then it will
require a 5-10 minute warm-up period before it begins searching for a GPS signal.
At this point, the GPS Subsystem is fully synchronized, and you may proceed to permanently mount
the chassis and antenna in their desired locations. If you are unable to achieve GPS lock after 24
hours, then contact EndRun Customer Support for assistance.
Installing the Meridian II
FCC NOTICE
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruc-
tion manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmul interference in which case the user will be required to correct the
interference at his own expense.
In order for the Meridian II to synchronize with maximum accuracy to UTC, the delay for the cable and all
devices between the antenna and the GPS receiver must be compensated. See
Appendix E - Installing
the GPS Antenna, Calibrate Your Receiver for more information.
NOTE