2.3 JUMPERS (default setting in bold type)
The jumper locations for the REV A thru
REV C T F P versions are shown in the
adjacent illustration. The jumper blocks are
not drawn to scale i n order to make the
numbers more visible. I t might be helpful to
refer to the schematic diagrams to obtain a
clearer idea of the function of each jumper
option.
JP1
With the jumper in the 1-2 position the TFP
is configured to use DC level shift input
timecode. I n the 3-4 or open position the
TFP i s configured t o u s e modulated
timecode.
3
JP2
4 2
JP1
2 1
4 3
1
4 2
JP3
7
2
JP5
4
2
JP4
P1
P2
JUMPER LOCATION REV A thru REV C
JP2 (GPS OPTION)
In the
1-2
position the TFP is configured to use a single ended 1PPS GPS input. I n the 3-4 position
the TFP is configured to use a differential 1PPS GPS input.
JP3 (GPS OPTION)
In the
1-2
position the TFP is configured to use the ACUTIME Smart Antenna or SV-6 as the GPS
sensor. I n the 3-4 position the TFP is configured to use the TANS as the GPS sensor.
The ACUTIME, SV-6, and TANS are GPS sensors manufactured by Trimble Navigation Inc.
JP4
The jumpers in the JP4 group are designed
to be moved as a pair. That is positions
3-4
and 5-6
define one configuration, and
positions 1-2 and 7-8 define a second
configuration. I n the default configuration
the TFP is configured with an auxiliary RS-
422 output. In the second configuration the
TFP as configured in a daisy-chain mode
(the RS-422 input is jumpered to the RS-
422 output. This jumper set is intended to
be used in a digital synchronization mode.
At the present time this mode has not been
implemented.
3
3
3
2 1
4 3
JP2
2
4
W1
JP3
7 I
3
4
2
IPS
4
2
JP4
P1
P2
J P 5
J
U
M
P
E
R
LOCATION REVD & UP
In the
1-2
position this jumper places a 100
ohm load between the RS-422 input lines. In the 3-4 position the 100 ohm load is by-passed. When
the TFP is the terminal device on an RS-422 daisy chain the load should be used. When the TFP is
Datum Inc., Bancomm Div.
bc635VME/bc350VXI Manual
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