Symmetricom TimeProvider 1000 User Manual page 70

Chapter 3 Installing the TimeProvider
Making Connections
11.Install a user-supplied bracket, preferably non-metallic, to support the vertical
section of conduit to the antenna.
12.Route the antenna cable through the conduit, and connect the cable to the
lightning suppressor. See
13.If the lightning suppressor is not mounted directly to a valid earth ground, crimp a
length of 4.115 mm (6 AWG) ground cable to the two-hole terminal, slide the
terminal over two of the three threaded posts on the lightning suppressor
mounting plate, and attach the terminal to the mounting plate with two KEPS
nuts. Use the two posts that allow the least bending of the cable.
14.Connect an RG58 (060-58545-xx) cable between the lightning suppressor and
the TPIU. See
15.Install fire-stopping material in all holes opened in the roof and/or walls during
this procedure.
16.Check all connections for tightness to prevent arcing and intermittent operation.
17.Coat all exposed connectors with an electrically conductive antioxidant
compound (e.g. Kopr-Shield spray).
Installing the TPIU
You mount the TPIU on a rack near the TimeProvider main shelf. Symmetricom
supplies the connecting cable (060-58543-xx or 060-58544-xx) in several lengths,
as listed in Table
990-58545-02). Mount the TPIU to the rear rails of the rack using the provided rack
ears. Install the TPIU so that the front panel is on the same side as the Output
modules. Figure 3-23
To connect the TPIU to the shelf, attach the DB15 interconnect cable (060-58543-03
or 060-58544-03) to the connector labeled "GPS" on the TimeProvider shelf. This
connector is on the front panel of the Model 1000 and on the rear panel of the Model
1100. Connect the other end of the cable to the DB15 connector on the TPIU.
To use the GPS signal, set the TimeProvider to the PRR mode, as described in
Provisioning the
70 TimeProvider User's Guide
Table 2-4
Table 2-4 for specific cable lengths.
2-4. The Integrated GPS Antenna kit (990-58545-01 or
and Figure 3-24
IOC, on page 96, or enable the GPS input when in SSU mode.
for specific cable lengths.
illustrate alternate mounting schemes.
097-58001-02 Revision C – August 2005