Spectracom Corporation
8194B, 8195B, 8197B
GPS Ageless Master Oscillator Instruction Manual
5-5
•
Lock LED:
The LED will light when the VersaTap
TM
is locked to the incoming
reference. The LED will blink if the DC input is low, which may cause the
VersaTap
TM
to malfunction. The LED will be unlit when the VersaTap
TM
is not
locked to the incoming reference.
•
VersaTap
TM
Size:
8.3 L x 4.2 W x 1.7 H inches. (211 L x 107 W x 43 H mm).
Mounting hole pattern 8.88 x 2.75 inches (225.4 x 69.9 mm).
5.3.1.3
Model 8140TA Line Extender Amplifier
The Line Extender Amplifier must be used to boost the output signal when the coaxial
distribution network is more than 1500 feet (457 m) long. The Line Extender will drive
an additional 1500-feet (457 m) of RG58 coaxial cable with Model 8140 Line Taps
installed along its length.
Two DC-isolated 50-ohm terminators must be used: one at the input tee connector of
the Line Extender Amplifier and one at the far end of the cable connected to the output
of the Line Extender Amplifier.
See the “Typical Interconnection Diagram” at the end of this section for an approved
method of interconnection.
5.3.1.4
Model 8140MT MultiTap
The Spectracom Model 8140MT MultiTap is a programmable frequency divider/buffer.
Three outputs can be configured to the same frequency or set independently. When
used as part of your Spectracom Distribution System it decreases the cost per output
and allows future modifications as requirements change.
•
Frequency Outputs:
Three square wave outputs per MultiTap. 1.5V p-p into 50
ohms. Once a group is chosen, any divisor in a group may be individually
selected.
