Contents
Getting Started Guide v
Indicators 2-12
Power Indicator 2-12
GPS Lock Indicator 2-12
Holdover Indicator 2-12
Alarm Indicator 2-12
Serial Interface Port(s) 2-13
PORT 1 Rear-Panel RS-232C Serial Port 2-13
PORT 2 Front-Panel RS-232C Serial Port (59551A Only) 2-14
Connecting a Computer or Modem 2-15
To Connect the GPS Receiver to a PC, Laptop, or Modem Via
the Rear-Panel PORT 1 2-16
Connecting to the Personal Computer (PC) 2-16
Connecting to a Modem 2-16
To Connect the 59551A to a Laptop Computer Via the
Front-Panel PORT 2 2-18
Making Your Own Cables 2-19
Configuring the RS-232C Port(s) 2-20
Making Changes to the Serial Port Settings (If Needed) 2-21
Configuring PORT 1 of the 59551A 2-21
Configuring PORT 1 of the 58503B and PORT 2 of the
59551A 2-21
Determining the Serial Port Settings 2-22
Standard 58503B and 59551A 2-22
Option 001 58503B 2-22
Operating Concepts 2-23
General 2-23
Holdover Description 2-23
In Case of a Problem 2-24
Hours after powerup, Receiver not establishing GPS
lock 2-24
Receiver not maintaining GPS lock 2-25
3 Using Option 001 Front-Panel Display/Keypad
(58503B Only)
Chapter Contents 3-2
Overview 3-3
About the Display and Keypad 3-3
Product Compatibility 3-3
System Compatibility 3-3
Using the Display and Keypad 3-4
To Display Time 3-4
To Display Position 3-4