Lathem DDC4-RS-24 User Manual
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LTR-GPS Installation and Setup Guide
5. Mount the LTR-GPS unit to an indoor surface within the 25 foot antenna
cable length using four (4) screws and anchors if needed (not supplied). Do
not attempt to extend this Cable.
6. Plug the antenna cable into the antenna jack on the LTR-GPS unit and secure
the cable in the plastic clamp for strain relief (Fig.1).
7. If the LTR-GPS will not be powered by an LTRx-512 Master Clock, then
insert the plug from the wall wart power adapter into its mating jack. Plug the
power adapter into a nearby AC outlet. Verify that the red LED indicator
flashes “on” during initial power-up.
8. Observe the LED indicator on the LTR-GPS unit for 3 minutes until a satellite
signal is received, upon which the light should start blinking each second. A
brighter flash should occur approximately every 16-seconds. The LED not
flashing as described above indicates that the antenna is disconnected, that the
antenna is improperly positioned, or that power is not supplied to the unit.
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