Commands in DSR Application Subsystems
Input Parameter Commands
260
Agilent 81250 Parallel Bit Error Ratio Tester, Programming Reference, March 2006
:INPut:TCONfig
Syntax
:<Handle>:SGENeral:
PDATa(*):INPut
:TCONfig <VOLTage | DIFFerential>
:<Handle>:SGENeral:
PDATa(*):TERMinal(*):INPut
:TCONfig
<VOLTage | DIFFerential>
:<Handle>[:CGRoup(*)]:MODule(*):
CONNector(*):INPut
:TCONfig
<VOLTage | DIFFerential>
Parameters
<VOLTage | DIFFerential>
Selects the termination model for input
frontends:
• VOLTage selects termination via resistor against a termination
voltage.
If VOLTage is selected, the termination resistor and termination
voltage can be set with
“:INPut:IMPedance[:INTernal]” on page 252
and
“:INPut:TVOLtage” on page 250
.
• DIFFerential selects termination via a resistor against the
complement input (DIFFerential is only supported for E4835A,
E4863A and E4865A differential input frontends).
If DIFFerential is selected, the differential termination resistor can
be set with
“:INPut:DIMPedance” on page 261
.
Description
For input frontends two possible termination models are available:
• Via a resistor against a termination voltage. The resistor might be
high impedance or 50 Ohm. In the following picture this is shown
for single ended and differential inputs.
Example
:_test:SGEN:PDAT1:INP:TCON DIFF
:_test:SGEN:PDAT1:TERM1:INP:TCON DIFF
:_test:MOD1:CONN2:INP:TCON VOLT
50 / HiZ
V
IN
50
50
V
IN
~IN
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