Symmetricom Z3801A, User Manual

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Chapter 2 Features and Functions
Chapter Contents
2-2 User Guide
Chapter Contents
You will find that this section makes it easy to look up all the details
about a particular feature of the Z3801A GPS Receiver. This chapter
provides inputs, outputs, indicators, terminal and computer
connections, operating concepts (GPS lock and holdover), and
problem-solving information.
This chapter is organized as follows:
• Inputs page 2-3
– ANTENNA Input page 2-3
– DC INPUT J4 Power Jack page 2-6
• Outputs page 2-7
– 10 MHz OUT J2 Output page 2-7
– 10 MHz Outputs—via I/O Port 1 J3 page 2-7
– 1 PPS (One Pulse Per Second) Outputs— via I/O
Port 1 J3 page 2-7
– RS-422 Serial Port, I/O Port 1 J3 page 2-8
• Indicators page 2-9
– Power Indicator page 2-9
– Enabled/Active Indicator page 2-9
– Alarm Indicator page 2-9
– GPS Lock Indicator page 2-9
– Holdover Indicator page 2-9
• Connecting to a Computer page 2-10
• Operating Concepts page 2-11
– General page 2-11
– Holdover Description page 2-11
• In Case of a Problem page 2-12