Chapter 3 Installing the TimeSource 3100
Making Cable Connections
56 TimeSource 3100 User’s Guide 097-72020-01 Revision K – December 2005
Making Power Connections
The –48 volt DC battery enters through the four-position power terminal blocks
labeled TB1 and TB2. Figure 3-8 shows the location of the terminal blocks, and
Figure 3-9 shows the terminal block connections.
Ensure the power wires are long enough to reach from the shelf connector panel to
the office battery source connection. Use two 1.47mm (16 AWG) stranded wires for
the power connection, one with red insulation (BATT), and the other with black
insulation (RTN).
Connect the power wires with red insulation to the BATT wire receptacles on TB1
and TB2. Connect the power wires with black insulation to the RTN wire receptacles
on TB1 and TB2.
Making GPS Antenna Connections
Connect the coaxial cable from the lightning suppressor to the TNC connector
labeled GPS ANT. See Figure 3-8 for the connector location.
Making 10 MHz Output Connections
Connect an RG-58 coaxial cable from the connector labeled 10 MHz to the
equipment that will use the 10 MHz output signal. See Figure 3-8 for the connector
location.
Caution: To avoid possible shock, protective fusing must be provided
as part of the installation. This equipment is intended for installation in
a restricted access location.
Caution: To avoid possible shock, do not apply power to the
TimeSource 3100 shelf before instructed in this procedure. Before
connecting the power cables to the TimeSource 3100, ensure the
fuses are removed from the fuse panel that supplies power to the
power cables.
Note: Input power is reverse polarity protected; there are no user
replaceable fuses in the TimeSource 3100.
Note: Two separate office battery supplies (battery A and battery B)
are recommended. If separate office battery supplies are not
available, connect a single office battery to both inputs (TB1 and TB2)
to avoid a standing battery-failure alarm.
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