:TRIGger:PLENgth

Instrument:
N1000A
Meas. mode:
Scope
Eye
Jitter
TDR
Flex Apps:
FlexDCA
FlexRT

Pattern Length Selections

Availability of individual patterns depends on installed modules and other conditions.

  • 20 - 2˄7-1 PRBS
  • 40 - PCIe Compliance
  • 62 - PAM4 Clock
  • 120 - FC RPAT
  • 160 - PAM4 Linearity
  • 384 - 802.3ae TWDP segment
  • 640 - PCIe Idle
  • 1280 - FDDI Jitter
  • 2640 - CJPAT
  • 2280 - CRPAT
  • 3360 - CRPAT (2)
  • 3760 - CJPAT (2)
  • 3780 - XAUI CRPAT
  • 3820 - XAUE CJPAT
  • 5280 - GbE Test Frame
  • 7641 - XAUI CJPAT
  • 9000 - JTPAT
  • 18944 - CEI Stress
  • 20480 - SPAT
  • 20840 - CSPAT
  • 21760 - CJTPAT
  • 30240 - XAUI CRPAT
  • 32762 - CEI SSPR
  • 33792 - 10GbE
  • 65535 - SSPRQ
  • 90000 - FDDI Wander
  • 92160 - SATA
  • 311040 - SONET CID
  • 127 - 2˄7-1 PRBS
  • 128 - 2˄7 PRBS
  • 511 - 2˄9-1 PRBS
  • 512 - 2˄9 PRBS
  • 1023 - 2˄10-1 PRBS
  • 1024 - 2˄10 PRBS
  • 2047 - 2˄11-1 PRBS
  • 2048 - 2˄11 PRBS
  • 8191 - 2˄13-1 PRBS
  • 8192 - 2˄13 PRBS
  • 32767 - 2˄15-1 PRBS
  • 32768 - 2˄15 PRBS
  • 65535 - 2˄16-1 PRBS
  • 65536 - 2˄16 PRBS
  • 1048575 - 2˄20-1 PRBS
  • 1048576 - 2˄20 PRBS
  • 8388607 - 2˄23-1 PRBS
  • 8388608 - 2˄23 PRBS
Pattern Lock Commands

Command Syntax

:TRIGger:PLENgth  <bits>

<bits> is an int.

Query Syntax

:TRIGger:PLENgth?

Description

Enters the length of the test pattern in symbols, which is used in pattern-lock trigger mode. You must first disable automatic pattern-length detection (:TRIGger:PLENgth:AUTodetect OFF) before manually entering the pattern length. The command query returns the pattern length setting in symbols regardless of whether automatic detection is on or off.

To set or query the pattern length on simulated channels, use the :SOURce:PLENgth command.

Example Command Sequence

:TRIGger:PLENgth:AUTodetect OFF 
:TRIGger:PLENgth 128

Common Numerical Child Commands

This command supports the use of the following common numerical child commands: :DEFault, :MAXimum, :MINimum, and :STEP.