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Acutime 2000 Synchronization Kit User Guide 1-3
1 Introduction
• a waterproof, UV-resistant, plastic (polycarbonate) enclosure
with a proven epoxy seal.
(The enclosure is illustrated in Figure 1-1).
Figure 1-1 Acutime 2000 GPS Smart Antenna Enclosure
Acutime 2000 generates a PPS synchronized to UTC within 50
nanoseconds (one sigma). This level of precision is obtained using an
overdetermined time solution, an 80-nanosecond pulse steering
resolution and a T-RAIM (Time-Receiver Autonomous Integrity
Monitor) algorithm. The Acutime 2000’s PPS conforms to RS-422,
which supports long cable runs. The Acutime 2000 outputs a
comprehensive time packet after each PPS on a dedicated serial port.
It also features an automatic operating mode that requires no user or
host intervention. The Acutime 2000 accepts an event input and
reports time stamps in response to an external event signal.
The Acutime 2000 is available in the following configurations:
• Acutime 2000 with RS-422 Interface and 8-channel receiver
• Acutime 2000 with RS-232 Interface and 8-channel receiver