
Agilent Technologies N4900 Series
Agilent offers a wide range of serial bit error ratio test (BERT)
solutions for R&D and manufacturing. The J-BERT N4903B high-
performance serial BERT is the flagship of Agilent’s N4900 serial
BERT series. It addresses the needs of R&D and validation teams
who characterize serial I/O ports or ASICs up to 14.2 Gb/s. The
data rate can be extended up to 28.4 Gb/s by adding a 2:1 multi-
plexer and demultiplexer with clock data recovery. Integrated and
calibrated jitter sources for jitter tolerance measurements allow
designers to characterize and prove compliance of their receiver’s
jitter tolerance.
Agilent’s N4900 serial BERT series offers key
benefits:
• Excellent precision and sensitivity for accurate measurements
• Choice of feature set and frequency classes to tailor to test needs
and budget
• State-of-the-art user interfaces with color touch screen
• Remote control via LAN, USB and GPIB interfaces, compatible
with existing command set Agilent 71612, 81630A Series, N4900
Series
• Small form factor saves rack or bench space
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Table 1. BERT applications and selection guide
Device under test Bit
rate
Application
examples
Typical requirements Recommended Agilent BERT
For R&D characterization,
compliance
For
manufacturing
High-speed serial
receiver in computer
buses and backplanes
< 16 G QPI, PCI Express,
SATA, SAS, USB3,
TBT, DP, MIPI D-PHY/
M-PHY, HDMI, MHL,
UHS II, SMI
Data rates < 10-16
Gb/s, calibrated jitter,
SSC, ISI and S.I., clock
recovery, pattern
sequencing
J-BERT M8020A*,
J-BERT N4903B,
ParBERT 81250**
N/A
Backplanes, cables,
SERDES,
AOC, repeaters
> 10 G
– 28 G
100 Gbase-KR4/-CR4,
CEI, IB, TBT,
CAUI, CAUI 2/4,
10 Gbase-KR
Data rates > 10 Gb/s,
de-emphasis, x-talk,
PRBS
J-BERT M8020A, M8061A,
N4960A, N4965A,
J-BERT N4903B, N4877A
N/A
Optical transceivers and
sub-components:
0.6 to 44 Gb/s
> 25 G 40 G/100 GbE,
32 G FC, CFP 2/4
Data rates > 16 Gb/s ,
clean signals, PRBS
N4960A, N4967A
J-BERT M8020A/N4903B
+ M8061A/N4877A
N4960A, N4967A
10 G 10 G/40 GbE, PON,
OTN, 8 G/16 G FC,
QSFP, SFP+, QFP
Data rates < 16 Gb/s,
fast bit synchronization,
PRBS or framed bursts
J-BERT M8020A*,
J-BERT N4903B, N4917A
ParBERT**
N2101B,
N4906B-012,
N4962A
< 4 G 1 GbE, XFP, PON,
1 G/2 G/4 G FC
Data rates < 3.5 Gb/s,
fast bit synchronization,
PRBS or framed bursts
N4906B-003,
ParBERT 3.3 G
N5980A,
ParBERT
* Up to 4 lanes
** For multi-lane
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