Digital Communications Analyzers
• Automated mask measurements
• Integrated optical channels for accuracy and ease of use
• High-measurement throughput
• Filtered measurements for compliance test or full bandwidth for
waveform analysis
• Fast statistical waveform analysis
• Wide range of standard telecom and datacom masks
HP 83480A Digital Communications Analyzer 1
The HP 83480A represents a significant advancement in the instrumentation used to view waveforms in high-speed digital communications.
Industry-standar d tests including mask tests as well as eye-diagram analysis including extinction ratio are made using easy-to-use, built-in measurements. For measuring optical signals, lightwave receivers are integrated
into the instruments to provide highest accuracy and waveform fidelity.
With up to 50 GHz of bandwidth, the HP 83480A can be used on low-
rate tributary signals through 10 Gb/s optical waveforms.
Industry Standard Masks
Achieve high-throughput waveform testing with both optical and electrical masks and templates including SDH, SONET, Gigabit Ethernet,
and Fibre Channel standards. For guardband testing, use mask margins. Custom/user-defined masks can also be generated. Masks are
automatically aligned and scaled.
Digital Communications Analyzers
HP 83480A with plug-in modules
HP 83491/92/93A Clock Recovery/ 3
Trigger Modules
The HP 83480A/54750A DCA series now offers single connection measurements—no external trigger is required. With the addition of the
HP 83491/92/93A series of clock recovery receiver modules, reliable
parametric testing becomes easy even when you do not have access to
a clock signal trigger.
The HP 8349X series of plug-in receiver modules cover the three
most popular transmission media in use today—electrical lines, multimode fiber and single-mode fiber. A built-in coupler/splitter reduces
external hardware required for triggering. No more need for awkward
cables just to get a trigger—simply plug in your test signal, select your
data rate, and make your measurements.
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HP 11898A
HP 83480A
HP 83481A
HP 83482A
HP 83483A
HP 83484A
HP 83485A
HP 83485B
HP 83486A
HP 83487A
HP 83491A
HP 83492A
HP 83493A
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Integrated Optical Receivers
The HP 83480A is a modular platform with a family of optical receivers
with very high-speed inter nal photodiodes (2.5 GHz, 20 GHz, or 30 GHz
bandwidths). For filtered measurements, filters are switched in with a
simple keystroke to produce a calibrated reference receiver, or switched
out for full bandwidth waveform analysis.
The HP 83480A can accept one or two plug-in modules for up to four
measurement channels. Modules have two electrical channels or one
optical channel and one electrical channel. The following optical/electrical plug-ins have 9/125 µm single-mode optical interfaces for 1310 and
1550 nm applications. The HP 83481A has a 20 GHz electrical channel
and a 2.5 GHz optical channel with 155 and 622 Mb/s switchable filters.
The HP 83482A provides a 40 GHz electrical channel and a 30 GHz optical
channel. The HP 83485A provides a 20 GHz electrical channel and a 20 GHz
optical channel with a 622 or 2488 Mb/s switchable filter. The HP 83485B
provides a 40 GHz electrical channel and a 10 Gb/s filtered channel.
Two optical/electrical plug-ins have 62.5/125 µm optical interfaces
for both single-mode and multimode measurement applications. For 1310
and 1550 nm applications, the HP 83486A has a 2.5 GHz optical channel
with 155 and 622 Mb/s switchable filters for SDH/SONET/ATM
applications or 1063 and 1250 Mb/s switchable filters for Fibre Channel
and Gigabit Ethernet. For 850 nm applications, the HP 83487A has a
2.5 GHz optical channel with 1063 and 1250 Mb/s switchable filters
(Fibre Channel and Gigabet Ethernet). Both modules also have a 20 GHz
electrical channel.
Accurate Eye-Diagram Analysis
Integrated optical receivers are the key to accurate eye-diagram analysis of lightwave signals. Internal photodiodes have well-behaved frequency responses which are not degraded by external cabling and
adapters. This yields the highest in waveform fidelity and measurement
accuracy. Extinction-ratio measurements are accurate and repeatable.
General-Purpose Oscilloscopes
In addition to digital communications analysis, the HP 83480A can be
used as a general-purpose, high-speed, sampling oscilloscope. The
HP 83483A electrical plug-in provides two 20 GHz electrical channels,
the HP 83484A has two 50 GHz electrical channels. Add TDR capability
to the HP 83480A with the HP 54755A software and TDR module
HP 54753A or HP 54754A (see page 116). The HP 11898A module
extender provides a 1.5 meter extension cable for placing the electrical
module adjacent to the high-speed circuit-under-test.
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Time-domain measurements are only as accurate as the clock
source that you are triggering on. All three modules have exceptional
jitter performance to ensure an accurate display of jitter on the incoming data. The high sensitivity/wide bandwidth receivers also provide
electrical recovered clock and electrical data regeneration for simultaneous testing with other instruments, such as the HP 71603B or 71612B
error per formance analyzers.
For more complete information, order the Lightwave Test and
Measurement catalog. See detailed description on page 603.
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