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THIS EQUIPMENT COMPLIES WITH FCC  

CLASS-A REQUIREMENTS  

PURSUANT SUBPART J OF PART-15 

 

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may 
not cause harmful interference, and (2) this device must accept any interference received, including interference that may 
cause undesired operation. 

WARNING: Changes or modifications to this product not expressly approved by the party responsible for compliance could void the 
user’s authority to operate this equipment. 
NOTE: 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 in a business installation. This 
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, 
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by 
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 
    - Reorient or relocate the receiving antenna. 
    - Increase the separation between the equipment and receiver. 
    - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 
    - Consult the dealer or an experienced radio TV technician for help. 
 

This Class A digital apparatus complies with Canadian ICES-003. 

Cet appariel numerique de la classe A est conforme a la norme NMB-003 du Canada. 

 
 

  

 
 
 
 
 
 
 
 
 
 
 
 
 

Copyright © 2004 Lathem Time Corporation. All rights reserved. 

 

Document number: USG0045 

Revision: A 

 

 

 

 

Summary of Contents for DDC2-RS

Page 1: ...LTR GPS Satellite Synchronizer Installation Setup Guide...

Page 2: ...and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that inter...

Page 3: ...ntents Specifications Configure Settings 3 Time Zone Daylight Savings ASCII Output optional Install the Antenna 5 Connect Slave Devices 10 LTRx 512 Master Clocks LTR0 and DWA S Sonachron DDC Series Di...

Page 4: ...00ft away over a single twisted pair from a user provided Cat 3 or Cat 5 cable The length of cable and number of synchronized devices can be further increased using Lathem s SWIFT485 RS 485 Converter...

Page 5: ...TR GPS Specifications Size Weight 3 25 x 2 x6 6 1 lb Power 6 12vAC DC 300mA max Certificates FCC Part 15 ICES003 Model numbers of the devices supported by LTR GPS LTR 0 Master Clock DWA S Sonochron LT...

Page 6: ...e Zone switches 4 8 for the code representing the offset from GMT Greenwich Mean Time of your location For installations in the U S Canada and Mexico the codes are as follows Time Zone Country Offset...

Page 7: ...ng the RS232 port requires cable SAE0370 sold separately to transmit a plain text time stamp OPEN switch 1 to select Local Time transmission Close switch 8 to transmit GMT RS 232 Time Stamp SWITCH 1 L...

Page 8: ...LTR GPS Installation and Setup Guide C H A P T E R 3 Install the Antenna The antenna must be installed in a position that will have line of sight with three satellites Page 5...

Page 9: ...mount the active antenna Locate the antenna at the highest elevation possible with a wide view of unobstructed open sky If possible avoid mounting the antenna on the north side of a building which mig...

Page 10: ...TR GPS Installation and Setup Guide Avoid these locations when mounting antenna 1 Using two 2 supplied screws attach the satellite antenna to the mounting bracket Do not over tighten the screws Page 7...

Page 11: ...ed antenna to the outside of your building or on the roof s parapet with antenna facing skyward and unblocked by architectural impediments An alternate method is to mount the antenna indoors beneath a...

Page 12: ...12 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 po...

Page 13: ...to Lathem slave time display devices to be controlled The twisted pair data cable can supply data for 31 max devices located within 4 000 feet Simply daisy chain the twisted pair from slave to slave m...

Page 14: ...Page 11 Fig 2 Connect to LTRx 512 Master Clock 4000 FT MAX 200 FT M ELSE USE AX POWER ADAPTER Fig 3 Connect to LTR 0 or DWA S Sonachron LTR 0 DWA S YELLOW WHITE WHITE YELLOW Fig 4 Connect to DDC Serie...

Page 15: ...in its original carton or equivalent fully insured with shipping charges prepaid Lathem will not assume any responsibility for any loss or damage incurred in shipping 6 WARRANTY DISCLAIMER AND LIMITAT...

Page 16: ...Document USG0045A...

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