T-BERD 310
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Communications Analyzer
s more and more of your customers demand advanced SONET and ATM services, it
A
multiple test sets. Meet the T-BERD
DS3, and DS1/0 testing power into one dynamic instrument. The T-BERD 310 possesses one of
the testing industry’s best performance and reliability records and is approved by more service
providers than any other SONET tester.
optical, and high-speed optical options tailored to meet your special needs. When you’re ready to
add ATM testing or DS0 through OC-48 speeds, you can include them with a simple field
upgrade without affecting existing features. An optical spectrum analyzer for testing dense wave
division multiplexing (DWDM) networks is also included in the T-BERD 310’s portfolio of fieldupgradeable options. Plus, an internal modem option and a suite of graphical remote software
packages enable you to isolate problems remotely before dispatching a technician.
becomes critical to have the capability to test multiple technologies without requiring
310—the total network test tool that packs SONET, ATM,
Flexible T-BERD 310 packages take the guesswork out of SONET testing by offering electrical,
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Introduction
By regularly adding options to your T-BERD 310, you’ll maximize your investment and
ensure that you stay up-to-date with today’s services. As technology changes and your networks
grow, you can count on the T-BERD 310 to support you with convenient, easy-to-use upgrades.
The T-BERD 310
packs SONET, ATM, DS3,
and DS1/DS0 testing power
into one package.
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he T-BERD 310’s extensive set of measurements, drop and insert functions, and remote control features give
you complete testing capabilities in laboratory, manufacturing, central office, or outside plant environments.
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Applications
Central Office
Maximize maintenance and troubleshooting
efficiency with dual DS3 receivers, extensive DS1 analysis, and a wide range of simultaneous error measurements. Quickly set and verify signal level and
frequency using signal analysis and pulse shape
measurements; verify timing configuration, circuit
setup, and easily troubleshoot mid-span meets. The
T-BERD 310 also performs critical optical return loss
measurements, so you can install and troubleshoot
high-speed optical networks.
Laboratory
Simulate ATM traffic conditions and perform
detailed testing using advanced error insertion,
complete pulse shape analysis, and jitter measurements. Measure automatic protection switch (APS)
time, access jitter spectral characteristics, or access
the data communications channel from SONET. Perform automatic DS3 and SONET conformance testing.
Utilize the TTC Distributed Test Manager (DTM)
scripting capabilities to automate regression test suites.
Mobile Telephone
Switching Office (MTSO)
Detect physical layer problems and test DS0,
DS1, and DS3 through OC-12 at the MTSO. Quickly
troubleshoot a wide range of problems associated with
wireless networks. Field upgrade to SONET as your cellular network requires higher bandwidth. In one step, scan
all 28 DS1s within a DS3 or SONET signal for framing
format, errors, timing slips, and alarms. In-service testing is also supported, with DS1 drop and insert on a
live DS3 signal.
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Applications
Manufacturing/Production
Fully integrate the unit into your automated
test system with the RS-232/IEEE-488 remote control
interface and rack mount capability. The TTC DTM software for Windows can automate acceptance test suites
for maximum flexibility in distributed test applications.
National Instruments Corporation’s LabVIEW drivers
provide a platform-independent, graphical programming language for the T-BERD 310.
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y supporting emerging transport technologies such as DWDM, TTC continues to protect your T-BERD 310
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investment. The optical spectrum analyzer allows you to qualify, troubleshoot, and maintain your DWDM
network by measuring critical optical parameters to verify system integrity. An internal tunable filter can be set to a
specified wavelength to precisely evaluate the appropriate channel in the multi-channel DWDM system. In addition, each
DWDM channel can be filtered to an output port allowing selective bit error rate testing (BERT). This allows you to
sectionalize problems and qualify each channel in a manner similar to the verification process used with SONET,
DS3, and DS1 time domain multiplexing (TDM) networks today. The media test card provides optical return loss
and power level measurements, which are critical for evaluating the cables and connectors in high-speed DWDM
and SONET networks.
• Optical Spectrum Analyzer
Verify the critical parameters—signal-to-noise ratio, center wavelength, and peak power—to qualify your
DWDM network and sectionalize troubles in the span. Use the SONET options to BERT each channel using
the channel selection feature to drop out a channel for this ultimate qualification test.
• Dual-Wavelength Optical Return Loss and Insertion Loss
Qualify existing and future network performance by measuring the total energy reflected back to the transmit source. Proactively verify loss budgets to guarantee network performance for your receiver specifications, using a built-in stable source and power meter.
DWDM and Optical Media Testing
Tx
Tx
Tx
Tx
λ
1
λ
λ
1
n
Mux
Optical Amplifiers
λ
n
0
Power (dBm)
-50
1530 1560
Wavelength (nm)
Graphical Output
T-BERD 310
Demux
DWDM Testing
Use a printer or laptop computer to tabulate and graph all the channels in the
DWDM system. View the graphical output to determine gain tilt and power flatness
of the optical amplifiers to ensure equal distribution of power in all channels.
Rx
λ
1
Rx
Rx
Rx
λ
n
ADM
5
X X
X = Reflections
Optical Return Loss Testing
Ensures that the total amount of energy caused by reflections is within specification for the laser type, wavelength, and line rate. A dual-wavelength Optical
Continuous Wave Reflectometer (OCWR) source allows you to prequalify fiber
to prevent this common problem. It also allows the test set to be used as a
stable source for construction or outside plant crews.
T-BERD 310
Span
T-BERD 310T-BERD 310
Power Meter Stable Source
Insertion Loss Testing
Verifies your end-to-end optical power loss is within the design budget. Insufficient insertion loss can cause receiver saturation, while too much insertion
loss can cause an unrecoverable signal. Either situation can result in intermittent errors or total system failure.
DWDM and Optical Media Testing
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SONET Testing
he flexible architecture of the T-BERD 310 allows you to configure your instrument to meet your specific
SONET testing needs. The SONET options are designed around a Reduced Instruction Set Computer (RISC)
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architecture which provides enhanced flexibility, allowing TTC to quickly respond to changing market requirements
with software upgrades. Advanced dual-wavelength laser technology allows complete fiber testing at both 1310 and
1550 nm wavelengths. The T-BERD 310 SONET capabilities include full results analysis, easy-to-read LEDs, and the
following features:
• Automatic SONET, DS3, and DS1 Signal Synchronization
Immediately identify the SONET payload type and DS3/DS1 framing and pattern with minimal setup. Isolate incorrect equipment configurations.
• Simultaneous Results Display
With a single test, quickly identify which signal
is the source of errors while viewing SONET,
DS3, DS1, and DS0 results all at once.
• Concatenated Payloads
Verify SONET equipment configuration for
transporting broadband services. Front panel
LED indicates when OC-12c or OC-3c payloads
are being received.
The T-BERD 310’s
flexible architec-
ture enables you
to configure your
test set quickly
and easily.
• APS Testing
Using SONET through mode, simulate real-life
signal degradation conditions to verify APS
switching.
• Dual-Wavelength SONET Testing
Thoroughly test 1310 and 1550 nm wavelengths with a single test set by selecting the
desired wavelength for SONET signals. Acceptance testing or problem isolation of 1310 and
1550 nm networks can also be performed with
the user-selectable wavelength.
• Synchronization Messaging
Easily prevent timing loops and verify clock integrity by evaluating SONET messages.
• Flashing Messages
Warn of common problems resulting from improper identification of STS-1 or DS3 signal connections.
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T-BERD 310
OC-12c
BITS
SONET
Mux
Network
BITS
SONET
Mux
OC-12cOC-48
OC-12c Testing
Verifies end-to-end circuit configuration and synchronization setup for service
providers or end users. Quickly identifies misconfigured ADM nodes while
providing a quick check of the Path Trace and Pointer results to ensure quality
transmission of broadband traffic such as ATM.
T-BERD 310
SONET Testing
ADM
Protect
Working
T-BERD 310
APS Testing
Simulates degraded service to verify APS configuration is correct. Using thru
mode, errors can be injected on the actual SONET overhead while using the
instrument as a SONET pass-through device and measuring the APS time and
side-effects on the DS3 payload.
ADM
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ATM Testing
he T-BERD 310 provides ATM testing capability to allow verification of both public and private networks.
Combined with the test set’s existing physical layer capabilities, the groundwork can be laid for high quality
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ATM service. Prequalification of ATM networks is critical in the prevention of congestion and network failures due to
higher layer protocols generating excessive cell retransmission.
The unique ATM features of the T-BERD 310 provide comprehensive and easy-to-use ATM layer testing
capabilities, including cell search and preview mode, cell loss and delay variation measurements, and OAM cell
capabilities. Front panel ATM error and alarm insert, as well as front panel LEDs provide alarm notification and easy
access to the ATM signal. In addition, these powerful features are added to field T-BERD 310s without the need to
remove any existing options from the test set, protecting your past, present, and future investment.
• ATM Cell Search and Preview
Quickly locate user-defined ATM cell types and
identify active traffic in the network, all with the
touch of a button.
• Traffic Bandwidth Analysis
Qualify traffic patterns and verify conformance
to a specified Quality of Service (QoS).
The TTC ATM test cells
go beyond problem
isolation, so you can
verify QoS and isolate
network troubles.
• OAM Support
Transmit AIS, RDI, and loopback cells to
troubleshoot switch configuration problems
and verify switch response.
• Cell Transport Verification
Easily isolate ATM congestion or configuration
problems by measuring dropped, misinserted,
or out-of-sequence cells.
• User-Defined Transmit or Receive Cells
Store multiple ATM headers and assign bandwidths to stress specific ports, or configure the receiver with
a mask to filter specific cell types.
• Delay Variation
Measure fluctuations in cell interarrival time caused by congestion or statistical multiplexing. Measurements allow you to estimate single-point cell delay variation with minimal setup.
ATM Switch
T-BERD 310
Search Mode
Allows you to quickly identify a user-defined cell type by its address, solving
two common switch configuration problems. First, switch configuration tables
can be easily misconfigured, resulting in a troubleshooting nightmare of lost
customer traffic with billions of address possibilities. With search mode, the
entire payload is searched within seconds, and the lost cell address is displayed. Second, ATM AIS and RDI cell-level alarms may be generated or reported
by the switch. Finding the exact location of these alarms for correction is
simplified with search mode.
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ATM Testing
OAM alarm cells
indicate ATM
layer problems
ATM
Switch
ATM RX ↓ VPI VCI ↓ %BW TYPE
PREVIEW 002 0300 20 live
↓
↓
T-BERD 310
Preview Mode
Tells you with the touch of a button which active cells are on the network.
When combined with a multicasting switch configuration, preview mode provides a powerful, in-service network monitoring feature. Active cell addresses
are displayed, and their bandwidth percentage and cell types are updated in
real-time. Cell traffic types include: live (shown), TTC test cells, AIS, or RDI
alarms. In addition, any identified cell address can be easily stored for further
analysis, including HEC error and congestion percentage measurements.
ATM
Switch
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ATM
Switch
ATM
ATM Testing
Switch
T-BERD 310
ADM
OC-12c
OC-12c
ATM
Switch
OC-12c OC-12c
ADM
OC-48 Ring
ADM
ADM
End-to-End Stress Testing
Verifies conformance to QoS standards for constant and variable bit rate
services. The T-BERD 310 will emulate the sustained and peak cell rate for a
user-defineable bandwidth and duration. 100% of the entire bandwidth can
be filled with a mixture of idle cells, user-programmable foreground, or background cells. At the far-end, delay variation, dropped cells and network congestion can be monitored for side-effects. For end-to-end connectivity, the
user-definable TTC test cell correlation tag provides a unique cell identifier.
This testing approach ensures that the full bandwidth range of live traffic will
be supported—before the circuit is commissioned.
ATM
Switch
OC-12c
OC-12c
ATM
Switch
ATM
Switch
T-BERD 310
ATM Switch
T-BERD 310
Loopback cell
OAM Loopback Testing
Identifies ATM switch configuration problems. Segment and end-to-end loopback cells are sent into the switch or network and automatically routed back
via a return channel. Failure to receive loopback cells may indicate improper
configuration of bidirectional ATM traffic.
S3 bandwidth enables you to support a host of new communications technologies, including cellular
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mission service, you need to test the physical layer carefully to derive these benefits—especially technologies requiring higher layer error correction, like ATM. To prevent unnecessary cell retransmission, verification of the physical
layer is critical. The T-BERD 310 is a full-featured DS3 monitoring and analysis instrument, that enables you to thoroughly verify DS3 circuits in-service and out-of-service. DS3 testing functions include:
traffic, video conferencing, distributed data processing, and workstation-based graphics. Like any trans-
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• Pulse Shape and Signal Analysis
Identify connector and cabling troubles by measuring the DS3 pulse shape’s conformance to 1991 and
1993 ANSI and ITU-T specifications. Quickly set signal levels during equipment installation. Correlate
error bursts with level dropouts and frequency variations. Print pulse shape graphs and verify adherence to pulse mask specifications.
• DS3 Jitter Analysis
Perform in-service DS3 jitter measurements to detect DS3 jitter caused by SONET
SPE pointer adjustments, or perform frequency spectrum analysis on the demodulated jitter output signal. Set jitter thresholds to be immediately notified of outof-specification results.
• Multiplexed DS3 Signals
Easily generate and receive multiplexed DS3
patterns while inserting errors on userselectable DS1 channels. Insert a DS1 pattern into one or all channels to test and
simulate 3:1 cross-connects or multiplexers. Test patterns, tones, loop codes, or
errors can be inserted on one or all DS1
channels for additional testing flexibility.
Front panel LEDs and results monitor the
DS2 frame status.
The T-BERD 310’s extensive DS3 testing capabilities
help you qualify and troubleshoot DS3 circuits.
DS3 Testing
• Far-End Alarm and Control (FEAC) Support
Transmit C-bit FEAC or loop codes to loop specific DS1 channels or measure far-end response. LEDs
and the SUMMARY results category notify you when incoming FEAC messages are received.
• Bidirectional DS3 Testing
Reduces problem isolation time by half, by utilizing two independent, simultaneous DS3 receivers
for full analysis for two live DS3 signals. Front panel LEDs and results let you monitor both directions
independently, or automatically generate customized print reports when errors are detected on either
receiver.
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DS3 Testing
1.0
0.5
NORMALIZED AMPLITUDE
0.0
-0.5 0.0 0.5 1.0
Mask specifications
DS3 signal under test
Date MAY 15
Time 13:38:40
Power +3.5 dBm
Level 0.58 V
Pulse Shape PASS
Pulse Width 13.5 ns
Rise Time 7.2 ns
Fall Time 11.4 ns
Pulse Mask 93 ANSI
TIME (UNIT INTERVALS)
Pulse Shape Testing
Quickly identifies ground shorts, loose or poor connections, or improper cable
lengths causing intermittent errors. A printer can be used to output the
pulse shape for visual comparison to a user-selectable pulse shape mask. The
T-BERD 310 also provides a broad array of signal measurements, including transmit frequency, receive frequency, level, and power to further
isolate troubles.
DSX-3
MON
Out
M13 Mux
In
T-BERD 310
Jitter Testing
Lets you know non-intrusively when synchronization problems exist in the DS3
network or SONET network. Bursty jitter measurements often indicate a timing
problem in the SONET network, while stable and a consistently high reading
indicates a problem in the DS3 network.
SONET
Network
he DS1/DS0 testing capabilities of the T-BERD 310 offer unmatched flexibility for testing at a variety of test
access points. At DS1, it acts as a stand-alone DS1 test set. With the flip of a switch, the test set immediately
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begins analyzing DS1 tributaries at DS3 or SONET access points. These features enable you to install, qualify, and
troubleshoot DS1 signals with one test instrument. DS1/DS0 test capabilities include:
• DS1 Scan and Automatic Payload Detection
In one step, scan all 28 DS1s within a DS3 or SONET signal for framing format, errors, timing slips, AIS,
CRC errors, and alarms. Scan continuously, or trigger and hold on a DS1 with user-selectable error and
alarm events. Reduce problem isolation time further by using automatic payload detection.
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• ESF Data Link Analysis
Decode BITS synchronization messages to
verify the quality of network timing sources.
Analyze far-end Performance Report Messages (PRMs) per ANSI T1.403. Generate
PRMs emulating customer or carrier equipment. Transmit out-of-band line, payload, or
network loop codes over the ESF datalink.
• Programmable Loop Codes
and Test Patterns
Use 3- to 8-bit programmable loop codes for
non-standard DS1 equipment, or select standard in-band Facility 1, Facility 2, or CSU, or
out-of-band line, network, and payload. Use
3- to 24-bit programmable test patterns for
custom tests, or choose fixed, pseudorandom, or long user patterns (LUP).
• DS1 Timing Slips
Quickly identify clocking impairments, a common source of intermittent errors in asynchronous networks and jitter in SONET networks. Access your DS1 timing reference from SONET, DS3, DS1, or BITS
access points.
• Line Coding
Transmit AMI or B8ZS formats. Automatically detect received AMI or B8ZS coded signals to identify misconfiguration problems quickly.
The T-BERD 310’s extensive DS1
measurements enable you to qualify
and troubleshoot digital circuits.
DS1/DS0 Testing
• DS0 Analysis
Verify voice quality or analyze signaling bits by dropping the voice channel from DS1 to OC-12 access
points.
• Fractional T1 Testing
Provide verification of leased contiguous and non-contiguous channels. In addition, single ended
turnup can be assisted with far-end ESF PRMs.
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Master Clock
DS1 BITS Clock
DS1/DS0 Testing
T-BERD 310
T-BERD 310-1
Test Signal
DS1/DS3/SONET
Network
BITS Timing Analysis
Isolate sources of timing impairments in asynchronous or synchronous networks. Timing slips can be measured from DS1 tributaries in SONET or
DS3 signals, as well as an external DS1. In addition, ESF synchronization messages are decoded to provide quick insight into the quality level of the BITS
clock source.
DSX-1
MON
T1
T-BERD 310
Out
In
T1
CSU
DS1
T1
CSU
T-BERD 310-1
DS1 BERT
Detects common problems using a wide variety of standardized test patterns.
Line code mismatch is found using All Zeros stress patterns. Level problems are
highlighted with All Ones patterns. LUP patterns stress maximum ones density
requirements to verify preamplification, equalization, and ALBO circuitry. Repeater timing recovery and M12 circuitry are also prequalified.
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pecialized software programs, such as TTC’s Distributed Test Manager (DTM), Remote Test
S
to expand the T-BERD 310’s capabilities as a distributed test instrument.
Manager
(RTM), and LabVIEW from National Instruments Corporation, go beyond remote control
DTM and RTM
DTM is a Windows-based software program
that emulates the T-BERD 310 front panel in real time,
allowing you to remotely control the T-BERD 310 (or
other TTC test instruments) from your PC, or access it
from a remote site. DTM enables centrally located technicians to perform comprehensive tests at remote locations. DTM also enables you to cut and paste test results
into spreadsheets or other Windows applications.
RTM is a specialized software package that
provides a graphical user interface of the T-BERD 310
front panel on a variety of platforms, including UNIX.
RTM enables you to control multiple, remotely located
T-BERD 310s from centrally located workstations. An
extensive array of script files enables you to perform
predefined sets of commands.
LabVIEW
Remote Testing
DTM and RTM extend the range of
your T-BERD 310 and network
maintenance personnel.
LabVIEW is a user-customized graphical programming language available from National Instruments Corporation, which allows you greater flexibility in developing automated test routines. The T-BERD 310 software in-
cludes a driver that connects a T-BERD 310 to a wide variety of workstations, including Macintosh, Sun
and IBM or compatibles. LabVIEW provides programmable data acquisition, data analysis, and customized
data presentation.
, HP-UX,
Additional Remote Options
In addition, you can use the field-upgradeable Internal Modem Option to dial up your T-BERD 310 and test
your network from any remote location. Other remote access options include the TA 3000 T3 Test Access System,
which connects TTC test equipment to any T3 line in the network, and NetAnalyst Test Management Software, a
client/server, GUI-based software package that remotely accesses and tests the network at DS3/DS1/DS0 rates.
TTC Customer Care
TTC Customer Care starts with a three-year warranty on all mainframes1 and includes repair and calibration
capabilities worldwide. TTC also offers extended warranty options, as well as service/calibration plans to meet your
unique needs. To complement our instruments and systems, TTC’s Technical Assistance Center engineers offer expert
consultation on any technical problem from 8 a.m. to 8 p.m. Monday through Friday, EST (1-800-638-2049 or
1-301-353-1550). And to support your changing testing applications and technologies, TTC provides practical,
hands-on training that can be tailored to your specific needs.
1
See product manual for exclusions.
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Specifications
Mainframe
Dimensions and Weight
Standard Chassis:
Overall Dimensions (with cover):
6.5 x 14 x 16 in.
(16.5 x 35.6 x 40.6 cm)
Weight (with cover):
Specifications
22.6 lbs. (10.2 kg)
Extended Chassis (310-11 Option):
Overall Dimensions (with cover):
6.5 x 14 x 18.7 in.
(16.5 x 35.6 x 47.5 cm)
Weight (with cover):
24.2 lbs. (11 kg)
Environment
Temperature Range:
Operating:
0° to 45° C (32° to 113° F)
Storage:
-40° to 70° C (-40° to 158° F)
Shock and Vibration:
Meets or exceeds IEEE-743
Power Requirements
Power supply provides automatic detection for
either 115 VAC or 220 VAC, 90 to 264 VAC from
47 to 63 Hz.
Fuse:
5A, 250V, Slo-Blo, 5x20 mm
(Little Fuse #218005 or equivalent)
Compliances and Specifications
ISO-9001 Registered
NRTL Approved to Underwriters Laboratories (UL)
Specifications
CSA Certified
FCC Part 15 Approved
DTM
T-BERD 310 Requirements
T-BERD 310 Software:
Rev. F or greater (basic T-BERD 310 interface)
Rev. G or greater (T-BERD 310-S user interface)
Workstation Requirements
Windows Operating System:
Microsoft Windows 3.1 or greater
Personal Computer:
IBM-compatible PC
4 MB RAM
VGA or SVGA monitor (16 color recommended)
Modem Support:
Hayes-compatible modem (AT command set)
1200 baud minimum
9600 baud maximum
LabVIEW
T-BERD 310 Requirements
310-6 IEEE-488 Option
Workstation Requirements
Refer to the current National Instruments
Corporation’s Instrumentation Reference
and Catalogue
Product Information
Model No. Description
310 T-BERD Communications Analyzer
(CLEI Code: SNTQAA63AA;
CPR Code: 674296)
310-S SONET/ATM User Interface
(CLEI Code: SNTQAB93AA;
CPR Code: 099604)
310-6 IEEE-488 Option
(CLEI Code: SNTQABD3AA;
CPR Code: 674303)
310-11 Three-Slot Expansion Option
(CLEI Code: SNTQAB13AA;
CPR Code: 674617)
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U.S. Headquarters
Germantown, Maryland, USA
U.S. Offices
Atlanta, GA; Chicago, IL; Dallas, TX; Denver, CO;
East Rutherford, NJ; Los Angeles, CA;
Roanoke, VA; San Jose, CA
Worldwide Offices
Australia, Benelux, Canada, China, France,
Germany, Hong Kong, United Kingdom
TTC Products Are
Year 2000 Compliant
Behind Successful Networks
You’ll Find TTC
20400 Observation Drive, Germantown, Maryland 20876
Tel. (800) 638-2049 • (301) 353-1550 (MD)
FAX (301) 353-0234 • www.ttc.com
TB310-B-7/98
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