User Manual

December 16, 2002 Part 003609A revision 01 77
Chapter 4: Installation Procedures
Install the GPS Clock Module
The Global Positioning System (GPS) clock module consists of a 1U module
that contains two plug-in GPS receivers. The GPS clock module requires two
GPS antennas. GPS antenna installation is described on page 110.
 To install the GPS clock module
1 Remove the GPS clock module from its antistatic packaging.
2 If necessary, attach the plug-in modules and the rack-mount brackets to the GPS
clock module using the hardware supplied in the shipping kit.
3 Orient the GPS clock module so that the text on the front panel is right-side up.
4 Slide the GPS clock module into the radio rack directly above the upper cooling
unit.
The GPS clock module is located between the Ethernet patch panel and the upper
cooling unit.
5 Puncture a hole in the grounding tape for each GPS clock module screw location.
6 Attach the GPS clock module to the rack using four 5/16-inch mounting screws.
Torque each screw to 50 inch-pounds.