Custom-Cal has a high success rate in repairing Agilent's 70843, which is also part of the 71612 Error Performance Analyzer System. We specialize in quick turnaround times and we can handle expedited deliveries upon request.
The Agilent 70843B / 70843C is a Bit Error Rate Tester. The 71612B / 71612C is an Error Performance Analyzer System, consisting of 70843, 70001A mainframe with 70004A display and 70340A clock source. This high performance serial pattern generator and error detector, you can perform error analysis to verify the operation and quality of lightwave submarine cable systems, SONET/SDH telecom and datacom transceivers, Gbit datacom serial links, high-speed logic devices, and optical amplifiers and modulators.
Warnings or errors reported.
 
 
Non-Permanent Errors:
101  Invalid set option
  An invalid set option was detected on an HP-IB set command.
102  Invalid query option
  An invalid query option was detected on an HP-IB query command.
103  Already gating
  The instrument cannot be commanded to start gating while it is already gating.
104  Already not gating
  The instrument cannot be commanded to end gating while it is already not gating.
105  Not while gating
  This command is not permitted while the instrument is gating.
106  Clock attenuator too large
  Attempt to specify a value of “Ext Atten” for the CLOCK and CLOCK OUT/ which is out of range.
107  Keyboard locked
  Commands that change the instrument’s configuration are not permitted while the keyboard is locked.
109  Pattern length too short for Block BER
  Block BER cannot be selected if the current pattern length is less than 32.
110  Window too small
  The size of the window allocated on the HP 70004A Display is inadequate; a full size window is needed.
111  Conflicts with run of zeros
  The zero-substitution pattern requested is incompatible with the current setting of the run of zeros.
112  Conflicts with zsub length
  The run of zeros requested is incompatible with the current setting of the zero-substitution length.
113  Conflicts with data high level
  The data amplitude requested is incompatible with the current setting of the data high level.
114  Conflicts with data amplitude
  The data high level requested is incompatible with the current setting of the data amplitude.
115  Not enough room on User’s Page
  The item cannot be added to the User’s Page because there is insufficient space remaining.
116  Clock freq exceeds maximum of option
  The requested frequency setting is higher than the maximum for this instrument option.
117  Not when external controller connected
  Cannot select an HP-IB printer to receive the logged output when there is already an external HP-IB controller already connected. Disconnect the controller.
118  No ext controller connected to log to
  An external controller is selected to receive the logged output, but there is not one connected. Connect an external controller or select a printer to receive the data.
120  Data attenuator too large
  The instrument cannot produce the defined ECL levels with the current value of attenuator.
121  Slave not present
  The command can be executed only if a slaved signal generator exists
122  Allowed only in manual gating
  The command can be executed only if the instrument has manual gating mode selected.
123  Do not have system clock
  The date or time cannot be set in this module as it is not the holder of the system date and time. Of all the modules in the system, the one with the lowest MS-IB address is the holder of the system date and time.
124  Cannot align data while gating
  A Clock to Data alignment cannot be initiated while gating.
125  Cannot center data while gating
  A 0/1 Threshold centering cannot be initiated while gating.
126  Cannot align data while centering
  A Clock to Data alignment cannot be initiated while gating.
127  Cannot center data while aligning
  A 0/1 threshold centering cannot be initiated while gating.
128  Allowed only when 0/1 threshold is manual
  The 0/1 threshold must be set to manual before the manual threshold can be set.
401  Cursor position outside range
  The requested cursor position is outside the legal range.
402  Invalid pattern length
  The chosen length for the pattern cannot be generated by the instrument. The length must lie within the specified resolution.
403  Pattern length out of range
  The pattern length is too large for the store.
407  Label too long
  The pattern label exceeds the maximum length of 14.
408  Invalid pattern store
  The pattern store number does not identify a valid store.
409  Straight patterns have no half B
  An operation specific to an alternate pattern has been attempted on a straight pattern.
411  Disk pattern header invalid
  An error has been detected in the information within the file holding the pattern store data. The file may be corrupted.
414  Disk pattern store invalid
  The index field in the file containing the pattern store data is set to an illegal value. The file may be corrupted.
415  Disk pattern type invalid
  The pattern type field in the file containing the pattern store data is set to an illegal value. The file may be corrupted.
416  Disk pattern label invalid
  The pattern label in the file containing the pattern store data contains an illegal character. The file may be corrupted.
417  Internal disk error
  The pattern label in the file containing the pattern store data contains an illegal character. The file may be corrupted.
419  Directory overflow
  Although there may be room on the media for the file, there is no room in the directory for another file name.
420  Disk file not found
  There is no file corresponding to the pattern store on the disk.
421  End of pattern file error
  Operation caused the end of file to be reached. No data left whilst reading, or space left when writing to a pattern store.
422  Disk full
  The disk is full. There is not enough free space for the specified size of pattern store.
424  File open on disk
  Operation not allowed on open file. May arise after changing the disk whilst an operation is in progress.
425  Disk not in drive
  Disk changed or not in drive. Either there is no disk in the drive, or the eject button is pressed whilst the disk is being accessed.
427  Disk write protected
  Attempting to change the contents of a disk with it’s write-protect tab set. Saving to a pattern store on disk, deleting a pattern store from the disk, or formatting a disk all generate this error if the disk is write-protected.
428  Disk media uninitialized
  Media not initialized. The disk must be formatted before it is used to store pattern information.
429  Disk data read error
  Read data error. The media is physically or magnetically damaged, and the data cannot be read.
430  Disk check read error
  Check read error. An error was detected when reading the data just written. The media is probably damaged.
431  Corrupt disk
  Disk may be corrupt.
435  Unable to reload edit buffer
  During power-on, the user pattern memory could not be reloaded from the appropriate pattern store (the disk last used for the UPAT selection was not inserted at power-on).
439  Not allowed in manual gating
  The action requested is not allowed while manual gating mode is selected.
440  Allowed only in repetitive gating
  The action requested is allowed only while repetitive gating mode is selected.
441  Allowed only for HEX entry
  The action requested is allowed only while HEX data entry is selected.
442  Allowed only when user’s page selected
  The action requested is allowed only while the User’s Page is selected.
443  Allowed only when tracking disabled
  The action requested is allowed only while the output tracking is disabled.
444  No pattern generator present
  The action requested is not allowed because there is no pattern generator module
445  No error detector present
  The action requested is not allowed because there is no error detector module.
446  Not allowed in divided clock mode
  The action requested is not allowed when the trigger mode is set to divided clock.
447  Allowed only in divided clock mode
  The action requested is allowed only when the trigger mode is set to divided clock.
448  Allowed only for pure PRBS patterns
  The action requested is allowed only when the pattern is a pure, non-modified PRBS.
449  Not allowed for pure PRBS patterns
  The action requested is not allowed when the pattern is a pure, non-modified PRBS
450  Allowed only in block BER mode
  The action requested is allowed only when the error location Block BER mode is selected.
451  Not allowed in block BER mode
  The action requested is not allowed when the error location Block BER mode is selected.
452  Not allowed in burst gating mode
  The action requested is not allowed when the burst gating mode is selected.
453  Allowed only for zero sub patterns
  The action requested is allowed only when there is a zero sub pattern selected.
454  Allowed only for mark density patterns
  The action requested is allowed only when there is a mark density pattern selected.
455  Allowed only for fixed error add mode
  The action requested is allowed only when the fixed error-add mode is selected.
456  Not allowed with ac coupling
  The action requested is not allowed when the output termination is set to ac coupling.
457  Allowed only with dc 0V coupling
  The action requested is allowed only when the output termination is set to dc 0V coupling.
458  Valid hard key panel not installed
  The hard key panel currently installed on the HP 70004A Display does not belong to this module. Either replace the panel with the correct one for this module, or use the Display’s MENU key to bring up the top level menu.
459  Allowed only for alternate user patterns
  The action requested is allowed only when there is an alternate user pattern selected.
460  Allowed only when alt pat mode is ALTERNATE
  The action requested is allowed only when the alternate pattern switching mode is ALTERNATE.
461  Allowed only when alt pat mode is ONCE
  The action requested is allowed only when the alternate pattern switching mode is ONCE.
462  Allowed only when alt pat source is USER
  The action requested is allowed only when the alternate pattern switching source is USER.
463  70311 & 70312 have no control of amplitude
  Control of the amplitude of the slaved signal generator is not allowed because the HP 70311 and HP 70312 have a fixed amplitude setting of +3 dBm.
464  All 1’s trigger pattern not allowed
  An all 1’s trigger pattern is not allowed because this conflicts with the allowed PRBS patterns.
465  Allowed only when audio is on
  The action requested is allowed only when the audio output is turned on.
466  Not allowed for alternate user patterns
  The action requested is not allowed when the pattern is an alternate user pattern.
470  Non-volatile instr config memory error
  The non-volatile instrument configuration has been lost during power-cycle (default configuration has been used). Needs repair.
471  Non-volatile results memory error
  The non-volatile results have been lost during a power-cycle. Needs repair.
490  DATA OUT amplifier over current error
  Incorrect external connection to DATA port or Pattern Generator h/w failure.
491  DATA OUT/ amplifier over current error
  Incorrect external connection to DATA OUT/ port or Pattern Generator h/w failure.
492  CLOCK OUT amplifier over current error
  Incorrect external connection to CLOCK port or Pattern Generator h/w failure.
493  CLOCK OUT/ amplifier over current error
  Incorrect external connection to CLOCK OUT/ port. or Pattern Generator h/w failure.
500  Update file format error
  Incorrect or defective software update disk.
503  Invalid update file size
  Defective software update disk. Needs repair.
504  CRC error in update file
  Defective software update disk. Needs repair.
505  Error reading update file
  Defective software update disk. Needs repair.
510  Primary demux over-current activated
  Incorrect external connection to DATA IN or error detector hardware failure. Needs repair.
520  Subrate amplifier over current error
  Incorrect external connection to SUBRATE CLOCK OUT or to 1 or more of the PARALLEL DATA OUTPUT ports or Pattern Generator hardware failure.
521  Subrate amplifier output error
  Defective instrument software or calibration data. Needs repair.
531  Failed to open logging to RS232 port
  Defective instrument software. Needs repair.
532  Logging port must be RS232
  The RS232 logging baud rate cannot be selected unless the RS232 is selected as the logging port.
533  Already have external HP-IB controller
  An attempt was made to initiate logging via the IEEE­488 HP-IB port in the system controller mode while another system controller is connected to that port.
534  BERT address conflicts with HP-IB printer
  Change the IEEE-488 HP-IB on the rear panel of the BERT.
540  Logging already enabled
  An attempt was made to initiate logging when it was already enabled.
541  Logging already disabled
  An attempt was made to turn off logging when it was already turned off.
542  Not while logging enabled
  An attempt was made to modify the logging configuration while logging was enabled.
543  Failed to turn on logging
  Attempt was made to initiate logging failed. Needs repair.
544  Failed to turn off logging
  Attempt was made to turn off logging failed. Needs repair.
545  Log buffer overflow
  Logged data has overflowed the internal buffer because the instrument has not output the data at a sufficient rate to either the printer or external controller.
546  Too many alarm changes to log
  Alarm logging has caused an overflow of the internal buffer. Stabilize the EdClkLs, DataLs and SyncLs flags.
550  Gating i/p asserted. Clk-data align aborted
  The GATING INPUT has been asserted causing external disabling of bit error measurements which is incompatible with a clock to data input delay eye-centering operation.
551  Gating i/p asserted. 0/1 centering aborted
  The GATING INPUT has been asserted causing external disabling of bit error measurements which is incompatible with a data input 0/1 threshold eye-centering operation.
900…999
  All errors in this range are a consequence of firmware errors or compatibility. Needs repair.

Errors:
130-359
  All errors in this range are a consequence of firmware errors or compatibility, or hardware failure. Needs repair.
360  Pgen gate array 0 cooling fan fault
  Turn off the instrument and have repaired.
361  Pgen gate array 1 cooling fan fault
  Turn off the instrument and have repaired.
362  Edet gate array 0 cooling fan fault
  Turn off the instrument and have repaired.
363  Edet gate array 1 cooling fan fault
  Turn off the instrument and have repaired.
370-398
  Invalid calibration data. Default data will be used with consequential impairment of input and output performance. Needs repair.
VOLT/TEMP  A low input ac voltage detected or an ambient temperature > 55C.
  Power down the system and disconnect the main power cable from the 70843. Check that the line input voltage is within specification. Check that the fan is operating correctly by checking the air flow at the fan-intake openings. If error continues unit needs repair.

Instrument Options:
UHF 12 Gb/s error performance analyzer (BERT)
Includes Pattern Generator and Error Detector. No display or clock source.
UHG 12 Gb/s pattern generator
Includes Pattern Generator only. No display or clock source.
UHH 12 Gb/s error detector
Includes Error Detector only. No display or clock source.
UHJ Add error location analysis to option UHF or UHH
   
   
Description of Model 
12Gb/s Bit Error Rate Tester
 
Bit Rate: 100 Mb/s to 12 Gb/s
Rise Time (10% to 90%): less than 30 ps
Patterns: 2^7-1, 2^10-1, 2^15-1, 2^23-1, 2^31 -1; zero substitution; variable mark density; variable length user pattern from 1 bit to 8 Mbits
Data & Data Outputs: ECl or variable 0.5 V to 2 V peak-to-peak amplitude into 50 ohms
Sub-Rate Outputs: 4 data plus clock (1/4 of main data rate) 0.5 V to 1 V peak-to-peak amplitude
Jitter: < 20 ps peak-to-peak; <15 ps peak-to-peak at 10 Gb/s
Clock/Data Delay: 1 ns; resolution 1 ps (100-500 Mb/s) 1 clock period; resolution 1 ps (>500 Mb/s)
Data Input Sensitivity: < 50 mV peak-to-peak (typical) at 10 Gb/s
Decision Threshold Range: + 1 V to -3 V; resolution 1 mV
Termination Voltage: Selectable 0 V or -2 V nominal
Errors Detected: Errored ones and zeros and all logic errors
Measurements: Error count, ratio; errored seconds, deciseconds, centiseconds, milliseconds; and G.821 analysis
Error Location Analysis: Bit BER, block BER, error location capture (option UHJ)

I'm interested in: 
Calibration Type (Select one):
Repair Information:
 Serial Number:

 Is there any physical damage?  
 If yes, describe:


What is the description of the problem?

How/when did the problem start?


 (*) Required Fields    For formal quote please fill in all fields.
Company:
From (Email):*
Contact Name:*
Country:*
Address 1:
Address 2:
City:
State/Territory/Province: *
Zip/Postal Code:
Phone:*

Comment: