Atec JDSU-ANT-20SE User Manual

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Page 1

Acterna ANT-20SE

Advanced Network Tester ªSpeed Evolutionº± SONET

The test solution that sets the pace in analyzing digital communications systems

Multi-rate transmission testing from DS1 to OC-192

Modular platform offering SONET, DSn, SDH and ATM capabilities

Built-in Pentium PC and Windows 98 user interface for easy processing of test results

Complemented by a lot of easy-access, automated test features

Large, color touchscreen plus graphical results presentation

Prepared for OC-192 upgrade

As digital communications networks expand, the number of network operators is growing too, and not just due to providers merging across boarders. Different networks such as Cellular, CATV and Internet are converging too. Nowadays, customers demand next-to-perfect network availability, and a top-level transmission quality has become a given.

ANT-20SE: A design future-proofed for success

Powerful, precise test capability or simple operation? PDH, SDH, SONET with all bit rates from 1.5 Mbit/s to 10 Gbit/s, or ATM? Don't worry about alternatives! You dont't have to choose. ANT-20SE delivers sophisticated, precision testing that is easy to use even in the most demanding environment for all the above bit rates and for ATM. In addition comprehensive jitter/wander measurements up to OC-48 in complete compliance with the ITU-T Rec. O.172 for comparable, insightful and accurate measurement results.

The remote operation facilities, gives you the opportunity to reduce your costs e.g. operating the instrument from any windows PC via modem or Ethernet LAN. Always ready for new standards, higher bit rates and the intelligent system components of the future the ANT-20SE is at the forefront of network installation and manufacturing applications. Now with the ANT-10Gig a subset of the ANT-20SE, it is taking you one step further allowing the analysis of OC-192/STM-64 signal structures. One outstanding feature of the ANT-20 test solution has always been its ease of

thanks to the very large display and

use, graphical

user interface based on Windows

98. The new ANT-20SE is even better since the size and brightness of the display have been further improved. The high speed access buttons are another useful detail, allowing you to rapidly launch commonly occurring measurements.

Edition: May 2001

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Configuration Guide ANT-20SE

SONET

page 3±8

Optic

page 9±12

ANT-20SE ± SONET ± Mainframe BN 3060/02

Extended SONET testing BN 3060/90.02 Add SDH BN 3060/90.04 Drop & Insert/Through mode BN 3060/90.10 M13 Mux/Demux BN 3060/90.12 Mux/Demux 64k/140M BN 3060/90.11 Add BERT SDH BN 3060/90.33

OC-1/3, 1310 nm BN 3060/91.01 OC-1/3, 1310/1550 nm BN 3060/91.02 OC-1/3/12, 1310 nm BN 3060/91.11 OC-1/3/12, 1310/1550 nm BN 3060/91.12 OC-1/3/12/48*, 1310 nm +concatenated BN 3060/90.55 OC-1/3/12/48*, 1550 nm +concatenated BN 3060/90.56 OC-1/3/12/48*, 1310/1550 nm + concatenated BN 3060/90.57

& & & & & &

& & & & & & &

CONC

page 10 ±12

Jitter

page 13±18

ATM

page 19±24

OC-1/3/12, 1310 nm +OC-48, 1550 nm + concatenated BN 3060/90.58

OC-12c BERT BN 3060/90.90 OC-12c ATM BN 3060/90.91 OC-12c virtual concatenation BN 3060/90.92 OC-48c BERT BN 3060/90.93

Jitter/Wander up to 155 Mbit/s BN 3060/91.30 Jitter/Wander up to 622 Mbit/s BN 3060/91.31 Jitter/Wander up to 2.5 Gbit/s BN 3060/91.32 Jitter/Wander at only 2.5 Gbit/s BN 3060/91.33 Jitter at only 2.5 Gbit/s BN 3060/91.34

ATM Basic BN 3060/90.50 ATM Comprehensive (PVC + SVC) BN 3060/90.51 Add ATM SONET BN 3060/90.53

& & & &

& & & & &

& & &

AUTO ± Remote

page 25±26

Add ATM SDH BN 3060/90.52

Automatic Test Sequencer CATS BASIC BN 3035/95.90 Automatic Test Sequencer CATS PROFESSIONAL BN 3035/95.95

* For OC-48 only see chapter optical interface

& &

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Specifications ANT-20SE SONET

ANT-20SE Mainframe BN 3060/02

Includes:

Generator and analyzer for electrical STS-1 and STS-3 signals allowing: ± Simulation and evaluation in the TOH / POH ± Generation and analysis of Anomalies and Defects ± Pointer generator and analyzer

Generator and analyzer for bit error rate tests (BERT) at 6 Mbit/s with unframed, 1.5 and 45 Mbit/s with framed and unframed test patterns

VT1.5 mapping (DS1 in STS-1)

Touchscreen

4 extension slots

Ethernet and USB Interface

Generator unit

Digital outputs

Interfaces to Telcordia GR-253, TR-TSY-000499, ANSI T1.102 75 O coaxial output, adapter jack selectable from Versacon 9 adapter system Bit rates and line codes

DS1.............................. 1544 kbit/s; B8ZS, AMI, CMI

DS2................................... 6312 kbit/s; B8ZS, CMI

DS3..................................44736kbit/s; B3ZS, CMI

STS-1 . ...............................51840kbit/s; B3ZS, CMI

STS-3 . ................................... 155520kbit/s; CMI

100 O balanced output, Bantam jack Bit rate and line codes

DS1.............................. 1544 kbit/s; B8ZS, AMI, CMI

Output pulses

DS1....................................... DSX-1 compatible

DS2............................................. rectangular

DS3, STS-1 ............................... HIGH,LOW,DSX-3

Bit rate offset. .....................................+500 ppm

Step size ......................................... 0.001 ppm

Clock

Internal clock generation

at all of the bit rates listed above.

Clock stability ......................................+2 ppm

Synchronisation to external signals

via 100 O balanced input, Bantam jack:

Reference clock . . . . . . . . . . . . . . . . . . . 1544 kHz and 2048 kHz

1544 kbit/s (B8ZS), 2048 kbit/s (HDB3) or

Receive signal

Clock outputs

Clock output at frequency of generator signal, approx. 400 mV (when terminated into 75 O), BNC jack.

STS-3 output signal

Generation of a STS-3 signal conforming to Telcordia GR-253, ANSI T1.105 The STS-3 signal consists of one internal STS-1 tributary signal with the remaining two tributaries filled with UNEQ.

STS-1 output signal

Generation of a STS-1 signal conforming to Telcordia GR-253, ANSI T1.105a

Manual pointer manipulation

or using pre-defined standard sequences

Figure 1: Pointer actions.

Mappings

VT1.5 mapping is included in the basic instrument. Other mappings are added with option ªExtended SONET testingº. Content of the selected tributary:

Framed or unframed DS1 or DS3 test pattern

M13 multiplex signal (with M13 MUX/DEMUX option)

External DS1 or DS3 signal (with D&I option)

Test pattern without stuffing bits (bulk signal to O.181)

Content of non-selected tributaries ............. framed PRBS 2

The various mappings are described along with the options.

±1

Generation of Pointer actions (figure 1)

Generation of pointer actions at the STS-1 and VT levels simultaneously.

Pointer sequences to T1.105.03 with programmable spacing

Pointer increment/decrement (continuously repeated)

Single pointer

Pointer value setting with or without NDF

Contents of TOH and POH bytes

The content of all bytes with the exception of B1/B2/B3 and H1 to H4 is programmable with any byte or a user defined bytesequence p in m in n (p frames in m frames and the entire sequence repeated n times) can be inserted. Bytes E1, E2, F1, F2, and byte groups D1 to D3 and D4 to D12:

Transmission of a PRBS test pattern with bit error insertion

(see test patterns)

Insertion of an external data signal via V.11 interface (also for K1

and K2)

Trace identifier

J0,J1,J2 ..........programmable 16 byte ASCII sequence with CRC

J1, J2, additionally ...........programmable 64 byte ASCII sequence

H4 byte .................................4or48bytesequence

Error insertion

Error types .............................B1,B2,B3parity errors,

Triggering

Single error or error ratio ................... 2610

for B1, B3, REI-P . . . ..................... 2610±4to 1610

for bit errors . ............................ 1610±2to 1610

Step size for mantissa and exponent ........................... 1

Burst error: m anomalies in n periods

For FAS, B1, B2, B3, REI-L, REI-P ..............m=1to4.86610

frame alignment signal errors, REI-L,

REI-P, bit errors in test pattern,

code errors (single errors)

±3

to 1610

and n = 2 to 8001 frames or 0.2 s to 600 s

±10

±9

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Alarm generation, dynamic

Alarm types .................... LOS,LOF,AIS-L, RDI-L, LOP-P,

AIS-P, UNEQ-P, PLM-P, RDI-P, RDIEPP,

RDIEPS, RDIEPC, PDI-P

Input levels

DS1....................................... DSX-1 compatible

DS3, STS-1 ............................... HIGH,LOW,DSX-3

Clock recovery pulling range .........................+500 ppm

m alarms in n frames . . ................ m=1ton±1,n

or t1 alarm active,

t2 alarm passive .....................t1=0to60s,t2=0to600s

max

= 8000

Alarm generation, static (on/off)

Alarm types .................... LOS,LOF,AIS-L, TIM-L, RDI-L,

LOP-P, AIS-P, UNEQ-P, PLM-P, TIM-P,

RDI-P, RDIEPP, RDIEPS, RDIEPC, PDI-P

DS1, DS2 and DS3 output signals

Signal structures

Unframed test pattern

Framed test pattern (only DS1, DS3)

DS1 frame structure . . ................................ SF,ESF

DS3 frame structure . . . ...........................M13,Cparity

Error insertion

Bit errors in test pattern ....................error rate, single error

BPV............................................. single error

DS1Fbit(LOF).................. single error, 2 in 4, 2 in 5, 2 in 6

CRC-6 (ESF) ............................ single error, error rate

DS3Fbit(LOF)........... single error, 2 in 2, 2 in 3, 3 in 3, 3 in 15,

P parity, CP parity, FEBE ................... single error, error rate

Error rate .................................1610

Alarm insertion

DS1...................................... LOF,AIS, YELLOW

DS3........................... LOF,AIS, YELLOW, IDLE, FEAC

FEAC Far-End Alarm and Control Signals

To test that FEAC alarm and status information is correctly transmitted, the relevant signal codes can be selected and inserted into the DS3 C-bit frame format.

Test patterns

Pseudo-random bit sequences

PRBS: 2 2

Programmable word

Length .............................................. 16bits

±1, 215±1, 220±1, QRSS 20, 211±1 inv., 215±1 inv., 220±1 inv.,

±1 inv.

3in16,3in17

±2

to 2610

±9

Selectable input gain, CMI coded ..................... 15to23dB

B3ZS, B8ZS, HDB3, AMI coded ...................... 15to26dB

Selectable adaptive equalizers for DS3, STS-1 .................450ft

Monitor input for STS-3 and STS-12 NRZ signals See chapter Optical Interfaces for details.

DS1 .....................1310 ft

STS-3 receive signal

(for signal structure, see under generator unit) The ANT-20 demultiplexes one selectable STS-1 tributary from STS-3 and feeds it to the internal processor for evaluation.

STS-1, DS1 and DS3 receive signals

Signal structures as for generator unit

Trigger output

75 O BNC connector, HCMOS signal level Pulse output for received bit errors, transmit frame trigger, transmit pattern trigger or 2048 kHz reference clock

Included mapping

VT1.5 and STM-0 mapping DS1 in STS-1 and 1.5 Mbit/s in STM-0

Modes ................ asynchronous, byte synchronous (floating)

Error insertion and measurement

Additional error types . ........................... BIP-V,REI-V

Alarm generation, dynamic

Alarm types................ LOP-V,AIS-V, LOM, UNEQ-V, RDI-V,

m alarms in n frames . . ................ m=1ton±1,n

or t1 alarm active,

t2 alarm passive .....................t1=0to60s,t2=0to600s

Alarm generation, static (on/off) and evaluation

Alarm types .............................. LOP-V,AIS-V, LOM,

Alarm detection only . . ................................ NDF-V

RDIEVP, RDIEVS, RDIEVC, RFI-V, PDI-V, PLM-V

UNEQ-V, PLM-V, TIM-V, RDI-V, RDIEVP,

RDIEVS, RDIEVC, RFI-V

max

= 8000

Receiver unit

Digital inputs

Interfaces to ....... Telcordia GR-253, TR-TSY-000499, ANSI T1.102

75 O coaxial input; adapter jack selectable from Versacon 9 adapter system Bit rates and line codes

DS1.............................. 1544 kbit/s; B8ZS, AMI, CMI

DS2................................... 6312 kbit/s; B8ZS, CMI

DS3................................. 44736kbit/s; B3ZS, CMI

STS-1 . ...............................51840kbit/s; B3ZS, CMI

STS-3 . ................................... 155520kbit/s; CMI

100 O balanced input, Bantam jack Bit rate and line codes

DS1...............................1544 kbit/s; B8ZS, AMI, CMI

Automatic modes

Autoconfiguration

Automatically sets the ANT-20 to the input signal. The routine searches at the electrical and optical interfaces for the presence of standard asynchronous and STS-N/OC-N signals (GR-253, ANSI T1.102) and the payload contents in channel 1.

Automatic SCAN function

The SCAN function permits sequential testing of all VT1.5 or VT2 channels in a SONETsignal. The ANT-20SE receiver checks for alarms in the receive signal, the SONETstructure and all channels and for synchronization of the selected test pattern in all channels. The results (OK/not OK) for each channel are entered in a matrix. The generator runs simultaneously and can be used to stimulate the device under test.

Page 5

An OK result indicates that the corresponding channel contains the signal searched for. Only the receive channels are switched during a SEARCH.

Measurement types

Error measurements

Error types .............................B1,B2,B3parity errors,

Additionally, for

DS1............................................. CRCerrors

DS3...................... P-parity errors, CP-parity errors, FEBE

Error Count, Error Rate, Intermediate Errors

Performance analysis

ES, SES, EFS, SEFS, UAS are evaluated

frame errors, REI-L, REI-P,

bit errors in test pattern, BPV

Figure 2: Trouble scan.

Automatic TROUBLE SCAN function (Figure 2)

The TROUBLE SCAN function permits sequential testing of all VT1.5 or VT2 channels in a SONET signal. The ANT-20SE receiver checks for alarms in the receive signal, the SONET structure and all channels. The results (OK/not OK) for each channel are entered in a matrix. A detailed alarm history can be displayed by selecting a channel from the matrix. Only the receive channels are switched during a TROUBLE SCAN.

AutoScan function (Figure 3)

This automatic ªAutoScanº function allows you to rapidly check the signal structure, the mapping used, the trace identifier and the payload ± even with mixed mapped signals. The ANT-20SE receiver analyzes the incoming received signal and provides a clear overview of all the signals present in the composite receive signal. The variable scan depth setting allows even complex signal structures to be resolved and displayed clearly. All the displayed results can be printed out.

Automatic SEARCH function

Channel shifts in the payload may occur when measuring complex network elements, depending on the configuration of the device under test. The SEARCH function permits rapid automatic location of the test channel (VT1.5 or VT2 with defined PRBS) in the payload of a SONET signal. The ANT-20SE receiver checks for alarms in the receive signal, the SDH structure and all channels, and for synchronization of the selected test pattern in all channels. The results (OK/not OK) for each channel are entered in a matrix.

In-service measurements (ISM)

Simultaneous ISM of the near-end and far-end of a selected path

Near-end . . . . . . . . . . . . . . . . . . . . . . . B1, B2, B3, BIP-V, CRC-6

Far-end . . . . . . . . . . . . . . . . . . . . . . . . . . . . REI-L, REI-P, REI-V

DS1, DS3 events ..................... Fbit, parity, FEBE, C parity

Out-of-service measurements (OOS)

OOS evaluation using bit errors in test pattern

Analysis of STS-1 and VT pointer actions (Figure 4)

Display of

Number of pointer operations: Increment, Decrement, Sum (Increment + Decrement), Difference (Increment ± Decrement)

Pointer value

Clock frequency measurement

The deviation of the input signal clock frequency from the nominal frequency is displayed in ppm.

Figure 4: Graphic pointers. Display showing additional evaluation of cursor position.

Figure 3: AutoScan.

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Delay measurement

Delay measurements are used for aligning satellite hops and testing the maximum permitted delay times for storage exchange and cross-connect systems and for checking the loop circuits in regenerators. The ANT-20SE measures the time taken to transmit the test pattern from the generator through the section under test and back to the receiver. The measurement is made on the test patterns in a selected channel, or in the tributaries (SONET; bulk signal or asynchronous), or on the selected channel of the lowest hierarchy level of asynchronous multiplex systems. To avoid ambiguities in the measurement, two measurement times are provided.

Measurement range

Bit rates from 34 to 155 Mbit/s ........................1msto1s

Bit rate 1.5 Mbit/s ................................. 10msto5s

Alarm detection

All alarms are evaluated and displayed in parallel

Alarm types ...................................LOS,OOF,LOF

Additionally, for STS . . ...............AIS-L, RDI-L, AIS-P, LOP-P,

NDF-P, RDI-P, UNEQ-P, TIM-P, PLM-P

Additionally, for DS1, DS3 ..............LSS, AIS, RAI (YELLOW),

IDLE (DS3), FEAC (DS3)

Figure 5: Histogram results display.

TOH and POH evaluation

Display of complete TOH and POH, e.g. interpretation of

APS information in K1 and K2

For the bytes E1, E2, F1, F2 and byte groups D1 to D3 and D4 to D12:

BERT using test pattern from the generator unit

Output of the data signal via the V.11 interface (also for K1, K2,

K3, N1 and N2)

For the Trace Identifier

J0 . . . . . . . . . . . . . . . . . . . . . . display of 16 byte ASCII sequence

J1, J2 . . . . . . . . . . . . . . . . display of 16 or 64 byte ASCII sequence

Measurement interval

Variable ...................................1second to 99 days

Measurement start .................... manual or automatic timer

Measurement stop ....................manual or automatic timer

(user setting)

Memory for errors, pointer operations and alarms

Resolution of error events and pointers . ...................... 1s

Alarm resolution ......................................100ms

Off-line analysis software

The software runs on standard PCs and permits comprehensive analysis of stored ANT-20SE results. After loading the results, the ANT-20SE settings during the measurement and the stored results can be accessed. Zoom and filter functions allow detailed evaluations. The processed results can be exported in CSV format for importing into other programs such as MS Excel or MS Word for Windows for producing documentation.

Graphical display (histogram) (Figure 5)

Display of errors, pointer operations / values and alarms as bargraphs vs. time

Units, time axis ..............................seconds, minutes,

15 minutes, hours, days

Tabular display

Display of all alarm and error events with time stamp

Result printout

ANT-20SE supports a variety of dot-matrix, inkjet and laser printers (Windows Print Manager)

Printer interfaces

Serial . .......................................... V.24/RS232

Parallel ........................... Centronics/EPP/IEEE P 1284

Result export

Results are stored in a database and can be processed using standard PC software

Instrument operation

ANT-20SE is operated using the standard MicrosoftâWindows graphical user interface. Operation is menu-controlled using the touchscreen. A mouse can also be connected if desired.

Application selection and storage

ANT-20SE includes an applications library to which customer-specific applications can be added. All applications are stored internally on the built-in hard disk drive and can be copied to any other ANT-20SE via floppy disk or super disk. Easy to use filter functions allow quick selection of the desired application.

Results display and instrument operation

Numerical display

Display of absolute and relative values for all error types

Intermediate results . . . .......................every 1 s to 99 min

Touchscreen display

A large display screen is available for the ANT-20SE:

Color TFT screen ..............................10.4@, 256 colors

Resolution ..................... 6406480 pixels (VGA standard)

The touchscreen allows very easy point and shoot operation.

Page 7

Built-in PC

ANT-20SE uses a Pentium PC as internal controller so that standard PC applications can also be run on the instrument.

RAM capacity ........................................64MB

LS-120 drive .................................... 3.5@, 120 MB

Hard disk drive ........................................ 6GB

USB interface, 10/100 Mbit/s Ethernet interface are included.

Keyboard

Full keyboard for text input, extended PC applications and future requirements. The keyboard is protected by a fold back cover. An additional connector is provided for a standard PC keyboard.

External display connector

Simultaneous display with built-in screen

Interface ...................................... VGAstandard

PCMCIA interface

Type ............................ PCMCIA2.1typesI,IIandIII

The PCMCIA interface provides access to GPIB, LANs, etc., via adapter cards.

Byte capture TOH and POH

To analyze the TOH/POH functions, it is necessary to capture individual bytes vs. time, allowing detection of errors or short-term changes with frame level precision. The Capture function is started by a selectable trigger. Values for a selected byte are stored and can be accessed subsequently in a table of values. Particularly in capturing the APS sequences, the bytes (K1, K2) are displayed as an abbreviation of the standard commands. The function also allows recording of the N1 or N2 bytes for evaluation of ªTandem Connectionº information. H4 sequences can also be analyzed very easily. The results can be printed or exported.

Capture bytes for STS-1/-3/-3c, el. & opt ........ allTOH/POH bytes

OC-Nel.&opt............. allTOH/POH bytes,

channel 1 except A1, A2, B1

Storage depth for a byte .................................. 266

K1,K2 .................................. 200

Trigger events ................. AIS-L, AIS-V, AIS-P, RDI-L, LOP-P,

editable value in trigger byte

Capture resolution ............................. frame precision

Power outage function

In the event of an AC line power failure during a measurement, ANT-20SE saves all data. As soon as the AC line voltage is reestablished, the measurement is resumed. Previous results are retained and the time of the power failure is recorded along with other events.

General specifications

Power supply (nominal range of use) AC line voltage,

automatic switching . . ............. 100to127Vand220to240V

AC line frequency ...................................50/60 Hz

Power consumption (all options fitted) . .............. max.500VA

Safety class to IEC 1010-1 ............................... Class I

Ambient temperature

Nominal range of use . ........... 41Fto104 F (+5 C to + 40 C)

Storage and transport range ...... ±4Fto158 F (± 20 C to +70 C)

Dimensions (w6h6d)inmm ........... approx. 32063506280

in inches ......... approx. 12.66 13.8611

Weight ................................... approx. 15 kg/22 lb

APS time measurement

In synchronous networks, a defined maximum switch-over time is necessary for the traffic in case of a fault. To verify compliance with this requirement, the ANT-20SE measures the switch-over time with 1 ms resolution. The result can be printed.

Criteria for the time measurement ............ AIS-L, AIS-V, AIS-P,

Max. measurable switch-over time ........................... 2s

Resolution ...................... ......................1ms

Allowable error rate for user signal .................... 52610

bit error

±4

Add SDH BN 3060/90.04

BERT (2, 8, 34, 140 Mbit/s)

Signal structure and interfaces for generator and receiver: Framed and unframed test patterns Additionally, for coaxial input/output

Bit rate, line code .................2048, 8448, 34 368 kbit/s, HDB3

Bit rate, line code ...........................139264kbit/s, CMI

Additionally, for balanced input/output

Bit rate, line code ............................2048 kbit/s, HDB3

C4 mapping (140 Mbit/s in STM-1 and STS-3c)

See ANT-20SE SDH datasheet for details.

Options

Extended SONET testing BN 3060/90.02

VT6 SPE mapping

(6 Mbit/s unframed/Bulk in STS-1)

STS-1 SPE and STM-0 mapping

Errors and alarms as for mainframe instrument

VT2 SPE and STM-0 mapping

E1 in STS-1 and 2 Mbit/s in STM-0

Modes ................ asynchronous, byte synchronous (floating)

Error insertion and alarm generation as for VT1.5 SPE mapping.

STS-3c mapping

(140 Mbit/s in STS-3c and STM-1)

C11 mapping (1.5 Mbit/s in STM-1, AU-3/AU-4)

See ANT-20SE SDH datasheet for details.

C12 mapping (2 Mbit/s in STM-1, AU-3/AU-4)

See ANT-20SE SDH datasheet for details.

C3 mapping (34 Mbit/s in STM-1, AU-3/AU-4)

C3 mapping (45 Mbit/s in STM-1, AU-3/AU-4)

See ANT-20SE SDH datasheet for details.

C2 mapping (6 Mbit/s unframed/Bulk in STM-1)

See ANT-20SE SDH datasheet for details.

Page 8

Drop & Insert BN 3060/90.10

This option provides the following functions:

1. Generator and receiver operate independently

as mapper and demapper. The DS1/DS3 signal from a selected

channel is dropped from the receive signal and output to a

connector. An external or internal DS1/DS3 signal is inserted into

the transmit signal.

M13 MUX/DEMUX chain BN 3060/90.12

M13 multiplexers are used in North America in hybrid networks and synchronous system cross-connects. This option provides n6DS0 to DS3 multiplex and demultiplex functions. The output signal is fed to the electrical interface and is available as payload in mappings (requires options BN 3060/90.02 or BN 3060/90.04). Alarms and errors can be generated and analyzed.

OC-M/STM-N e/o

Asynchronous tributary

OC-M/STM-N e/o

2. Through mode:

The received signal is looped through the ANT-20SE and re-

transmitted (generator and receiver coupled). The DS1/DS3 signal

from a selected channel may be dropped from the receive signal and

output to a connector. An internal DS1/DS3 signal may be inserted

into the transmit signal. The ANT-20SE can operate here as an active

signal monitor without affecting the signal.

OC-M/STM-N e/o

Asynchronous tributary

OC-M/STM-N e/o

3. Through mode jittering:

The looped-through DS1/DS3 or SONET signal can also be jittered

using the Jitter Generator option. This applies to all jitter

frequencies up to 622 Mbit/s depending on the jitter option fitted.

Jitter

OC-M/STM-N e/o

W-DCS

OC-N

DS1

MUX M13

DS1

Built-in

M13 MUX/DEMUX

OC-N

DS3

DS1

DS3/DS1

Cross connect

DS3

DS1

OC-N

DS1, VT1.5

Figure 6: Testing hybrid systems with M13 MUX/DEMUX.

64k/140M MUX/DEMUX chain BN 3060/90.11

This option provides n664 kbit/s to 140 Mbit/s multiplex and demultiplex functions. The output signal is fed to the electrical interface (requires option BN 3060/90.04) and is available as payload in mappings (requires option BN 3060/90.04). Alarms and errors can be generated and analyzed.

Asynchronous tributary

4. Error insertion in through mode:

The looped-through synchronous signal can be manipulated if

required:

± Overwriting bytes in the TOH

(except B1, B2, H1 to H3) ± Anomaly insertion ± Defect generation by programming the TOH

Error/Alarm

OC-M/STM-N e/o

Asynchronous tributary

5. Block and Replace (B & R)

For this function, the ANT-20SE is looped into the working fiber of a ring. B&R allows replacement of a synchronous tributary (e.g. STS-1 including TOH, POH and payload) in a OC-N signal. This can then be measured by the ANT-20SE from the ring. By inserting specific errors, the error thresholds of the APS mechanism in the system can be tested.

Additional input and output for tributary signals 75 O, coaxial BNC; line codes as for mainframe instrument

Input and output for balanced tributary signals: Use balanced

connectors on mainframe

OC-M/STM-N e/o

Page 9

Optical Interfaces

All of the optical interfaces are intended for single-mode fibers. Acterna offers a complete line of optical test adapters. Select one test adapter each for the generator and receiver from the ordering information in this data sheet. All optical interface options include the required number of test adapters. The STM-0 optical interface requires the option ªAdd SONETº.

Optical Modules up to 155 Mbit/s

Optical OC-1/3, STM-0/1, 1310 nm BN 3060/91.01

Optical OC-1/3, STM-0/1, 1310& 1550 nm BN 3060/91.02

Bit rate of TX and RX signal ....................... 155520kbit/s

additionally, for STS-1/STM-0 mappings ...........51840kbit/s

Line code..................................... scrambled NRZ

Generator unit

The generator meets the requirements of Telcordia GR-253, ANSI T1.105.06 (ITU-T Rec. G.957, Tables 2 and 3). Classes LR-1, LR-2, LR-3 (L1.1, L1.2 and L1.3) are covered.

There are two options for adapting to the required wavelength:

Wavelength ........................................1310 nm,

1310 & 1550 nm (switchable in the instrument)

Output level ................................. 0dBm+2/±3dB

with 1310 & 1550 nm option ................. 0dBm+2/±3.5dB

Receiver unit

The receiver unit meets the specifications of Telcordia GR-253, ANSI T1.105.06 (ITU-T Rec. G. 957) and fulfills classes IR-1, IR-2 (S1.1 and S1.2).

Wavelength range ............................. 1100 to 1580 nm

Input sensitivity ................................±8to±28dBm

(± 8 to ± 34 dBm typ.) Display of optical input level

Resolution .............................................1dB

155 Mbit/s electrical interface for connecting the ANT-20SE to STM-1/STS-3 monitor points

Line code..................................... scrambled NRZ

Input voltage (peak-peak) ............................ 0.2to1V

Unbalanced input

Connector/impedance . ............................. SMA/50O

Optical Modules up to 622 Mbit/s

Optical OC-1/3/12, STM-0/1/4, 1310 nm BN 3060/91.11

Optical OC-1/3/12, STM-0/1/4, 1310& 1550 nm BN 3060/91.12

Bit rate of TX and

RX signal.......................... 155520kbit/s, 622 080 kbit/s

additionally, for STS-1/STM-0 mappings ...........51840kbit/s

Line code..................................... scrambled NRZ

There are two options for adapting to the required wavelength:

Wavelength ........................................1310 nm,

Output level ................................. 0dBm+2/±3dB

with 1310 & 1550 nm option ................. 0dBm+2/±3.5dB

Generation of OC-12 TX signal

In instruments with STS-1 mappings

The OC-12 TX signal consists of

one internally generated STS-1 tributary signal with the other 11 tributaries filled with UNEQ or

one internally generated STS-3c tributary signal with the other three tributaries filled with UNEQ (with STS-3c mapping option or ATM Basic Option BN 3060/90.50).

Generation of STM-4 TX signal

In instruments with STM-1 mappings

The STM-4 TX signal consists of

four identical STM-1 tributary signals (AU-4), or

one internally generated STM-1 tributary signal with the other three tributaries filled with UNEQ.

Contents of the OC-12/STM-4 overhead bytes

For all bytes except B1, B2 and H1 to H3:

The content of each byte is statically programmable or a user defined byte-sequence p in m in n (p frames in m frames and the entire sequence repeated n times) can be inserted.

For the E1, E2, F1 bytes and the DCC channels D1 to D3 and D4 to D12:

Transmission of a test pattern with bit error insertion (see mainframe for pattern selection)

Insertion of an external data signal (via the V.11 interface)

For the K1, K2, N1, N2 bytes:

Insertion of the data signal via the V.11 interface

For the J0 bytes:

Transmission of a 16-byte sequence, with CRC

Error insertion

Error types ..............................B1andB2parity error

additionally, for OC-12 ................................. REI-L

Triggering

Single errors or error ratio ................... 2610

for B1 parity errors ..........................2610±4to 1610

Burst error: m anomalies in n periods

For FAS, B1, B2, B3, REI-L, REI-P . . . ...... m=1to4.86106 and

Alarm generation, dynamic

Alarm types for OC-12 .......................LOF,AIS-L, RDI-L

m alarms in n frames . . ................. m=1ton-1, n

t1 alarm active, t2 alarm passive .................... t1=0to60s,

forSTM-4................................MS-REI

forSTM-4 ................... LOF,MS-AIS, MS-RDI

1310 & 1550 nm (switchable in the instrument)

±3

to 1610

n = 2 to 8001 frames or 0.2 s to 600 s

t2 = 0 to 600 s

max

±10

= 8000

Generator unit

The generator meets the requirements of Telcordia GR 253, ANSI T1.105.06 (ITU-T Rec. G. 957, Tables 2 and 3). Classes LR-1, LR-2, LR-3 (L1.1, L1.2, L1.3, L4.1, L4.2 and L4.3) are covered.

Alarm generation, static (on/off)

Alarm types ....................................... LOS,LOF

additionally, for OC-12 .....................AIS-L, RDI-L, TIM-L

forSTM-4................ MS-AIS, MS-RDI, RS-TIM

Insertion on/off

Page 10

Receiver unit

The receiver unit meets the specifications of Telcordia GR 253, ANSI T1.105.06 (ITU-T Rec. G.957) and fulfills classes IR-1, IR-2, LR-1, LR-2, LR-3 (S1.1, S1.2, S4.1, S4.2, L4.1, L4.2 and L4.3).

Wavelength range ............................. 1100 to 1580 nm

Input sensitivity, OC-1/3/12 STM-1/-4, . ............±8to±28dBm

(± 8 to ± 34 dBm typ.) Display of optical input level

Resolution .............................................1dB

The ANT-20SE demultiplexes one selectable STS-3c/STS-1 or STM-1 tributary from the OC-12/OC-3 or STM-4 RX signal and feeds it to the internal processor for evaluation.

Measurement types

Error measurements

Error types ....................................B1parity error,

B2 parity error of all STM-1/STS-1/STS-3c signals,

MS-REI/REI-L Alarm detection

Alarm types .............................. LOS,LOF,OOF,LTI

additionally, for OC-12 .................... AIS-L, RDI-L, TIM-L

forSTM-4................ MS-AIS, MS-RDI, RS-TIM

Option OC-12c/STM-4c Virtual Concatenation BN 3060/90.92

Only in conjunction with BN 3060/90.90 or BN 3060/90.91

Signal structure

STM-4 to ITU-T G.707 Virtual concatenation with 4 AU-4 pointers

Generation of pointer actions

Manipulations on pointer #1 see mainframe Setting of delta values for pointers #2, #3, #4

Pointer analysis

For pointer #1 ................................. seemainframe

Delta values (maximum, minimum) . . . ....................+40

for pointers #2, #3, #4

POH generation/analysi s

POH#1 ...................................... seemainframe

POH#2,#3,#4..........................static setting of all bytes

except B3

Automatic B3 generation for VC-4 #1, #2, #3, #4

Overhead evaluation

Display of the complete overhead of a selectable STM-1/STS-1/STS-3c signal

For the E1, E2, F1 bytes and the DCC channels D1 to D3 and D4 to D12:

BERT using a test pattern from the generator unit

Output of the data signal via the V.11 interface

For the K1, K2, N1, N2 bytes:

Data signal output via the V.11 interface

For the J0 byte:

Display of 15-byte sequences in ASCII.

155/622 Mbit/s electrical interface

For connecting the ANT-20SE to OC-3/STM-1 and OC-12/STM-4 monitor points

Line code..................................... scrambled NRZ

Input voltage (peak-peak) ............................ 0.2to1V

Coaxial input

Connector / impedance .............................SMA/50O

Concatenated Mappings 622 Mbit/s

Option OC-12c/STM-4c BERT BN 3060/90.90

Only in conjunction with BN 3060/91.11 or BN 3060/91.12

Contiguous concatenation signal structure to ANSI T1.105.02 and G.707. Error measurement to O.150

Test pattern .............................. PRBS-31, IPRBS-31,

Programmable word

Length .............................................. 16bits

Error insertion

Bit errors in test pattern, single error or

error ratio ................................ 1610

Error measurement and alarm detection

Bit errors and AIS in test pattern

PRBS-23, IPRBS-23,

PRBS-15, IPRBS-15

PRBS-20,

±2

to 1610

Option OC-12c/STM-4c ATM-Testing BN 3060/90.91

Only in conjuction with BN 3060/90.50 and BN 3060/91.11 or BN 3060/91.12

See chapter ªATM optionsº for further details.

Optical Modules up to 2488 Mbit/s

All optical packages include OC-12c/STM-4c Bulk (BN 3060/90.90), OC-48c/STM-16c Bulk (BN 3060/90.93) and 4 optical adapters.

Optical OC-1/3/12/48,

STM-0/1/4/16, 1310 nm BN 3060/90.55

Optical OC-1/3/12/48,

STM-0/1/4/16, 1550 nm BN 3060/90.56

Optical OC-1/3/12/48,

STM-0/1/4/16, 1310 &1550 nm BN 3060/90.57

Optical OC-1/-3/-12, 1310 nm,

OC-48, 1550 nm, STM-0/1/4, 1310 nm, STM-16, 1550 nm BN 3060/90.58

Optical Modules 2488 Mbit/s

Optical OC-48, STM-16, 1310 nm BN 3060/91.51

Optical OC-48, STM-16, 1550 nm BN 3060/91.50

Optical OC-48, STM-16, 1310/1550 nm switchable BN 3060/91.52

One 2.5 Gbit/s module can be fitted in the extension slot of the ANT-20SE.

The optical interfaces meet the specifications of Telcordia TA-NWT-000253 I.6 (Table 4 ± 9, 4±10) and ITU-T Recommendation

±9

G.957 (Table 4). Classes IR-2, LR-2, LR-3 (Telcordia) or S-16.2, L-16.2, L-16.3 (ITU-T) are fulfilled at 1550 nm; classes IR-1, LR-1 (Telcordia) or S-16.1, L-16.1 (G.957) are fulfilled at 1310 nm.

Page 11

Generator

Optical interfaces

Wavelengths ................................ 1310 nm, 1550 nm

Output level at 1310 nm and 1550 nm . . .......... 0dBm+0/±2dB

Line code .................................... scrambled NRZ

Electrical interfaces

Line code..................................... scrambled NRZ

Output voltage (peak-peak).............................

Connector/impedance . ............................. SMA/50 O

Clock generator

Internal, accuracy ...................................+2 ppm

Offset. . ...........................................+50 ppm

Synchronization from external signal as for mainframe

Generation of OC-48 TX signal

In instruments with STS-1/STS-3c mappings

The OC-48 signal consists of one or more internally generated tributaries plus several tributaries filled with UNEQ (or non-specific UNEQ)

48 identical STS-1

One STS-1 tributary and 476UNEQ/non specific

16 identical STS-3c (Option BN 3060/90.02 required)

One STS-3c tributary (Option BN 3060/90.02 required) and 156UNEQ/non specific

Four identical STS-12c (Option BN 3060/90.90 required)

One STS-12c tributary (Option BN 3060/90.90 required) and 36UNEQ/non specific

Generation of STM-16 TX signal

In instruments with STM-1 mappings

The STM-16 signal consists of one or more internally generated tributaries plus several tributaries filled with UNEQ (or non-specific UNEQ)

16 identical STM-1

One STM-1 tributary and 156UNEQ/non specific

Four identical STM-4c (Option BN 3060/90.90 required)

One STM-4c tributary (Option BN 3060/90.90 required) and 36UNEQ/non specific

Contents of OC-48/STM-16 overhead bytes

For all bytes except B1, B2 and H1 through to H3:

The contents of the bytes in all SOH/TOH are statically programmable

For the bytes E1, E2, F1 and the DCC channels D1 to D3 and D4 to D12:

Transmission of a test pattern and bit error insertion (see mainframe for pattern selection)

Insertion of an externally-generated data signal (via V.11 interface)

For the K1, K2, N1, N2 bytes:

Insertion of an external data signal via the V.11 interface

For the J0 byte:

Transmission of a 16-bit sequence with CRC

Error insertion

Error types ................................ B1,B2parity errors

Single error or error rate B1 ..................2610

B2 ..................2610±3to 1610

additionally, for OC-48 ..................................REI-L

forSTM-16.............................. MS-REI

Single error or error rate .....................2610

Alarm generation, dynamic

Alarm types for OC-48 .......................LOF,AIS-L, RDI-L

forSTM-16 .................. LOF,MS-AIS, MS-RDI

or 1310/1550 nm switchable

0.6 V

±5

±3

to 1610

±10

m alarms in n frames . . ................. m=1ton-1,n

max

= 8000

t1 alarm active, t2 alarm passive .................... t1=0to60s,

t2 = 0 to 600 s

Alarm generation, static (on/off)

Alarm types ....................................... LOS,LOF

additionally, for OC-48 ............................AIS-L, RDI-L

forSTM-16.......................MS-AIS, MS-RDI

Receiver

Optical interfaces

Wavelength ................................. 1260 to 1580 nm

Line code..................................... scrambled NRZ

Sensitivity .................................... ±28to±8dBm

Input overload .....................................4±8 dBm

Display of optical input level

Range . ...................................... ±30to±8dBm

Resolution .............................................1dB

Electrical interfaces

Line code .................................... scrambled NRZ

Input voltage (peak-peak) ............................ 0.3to1V

Connector/impedance . ............................. SMA/50 O

A selectable STM-1, STS-1 or STS-3c channel is fed to the internal evaluation circuits by demultiplexing from the input signal.

Error measurement

Error types ............................ B1parity error, MS-REI,

B2 parity sum error over

all STM-1/STS-1/STS-3c channels

Evaluation (bit/block errors) ....................error rate, count

Error event resolution . .................................... 1s

Alarm detection

Alarm typs ................................... LOS,LOF,OOF

additionally, for OC-48 .....................AIS-L, RDI-L, TIM-L

forSTM-16............... MS-AIS, MS-RDI, RS-TIM

Alarm event resolution ................................ 100ms

TOH/SOH evaluation

Display of complete overhead

For the bytes E1, E2, F1 and the DCC channels D1 to D3 and D4 to D12:

BERT using test pattern from generator unit

Output of the data signal via the V.11 interface

For the K1, K2, N1, N2 bytes:

Data signal output via the V.11 interface

For the J0 byte:

Display of 15-byte sequences in ASCII format

Concatenated Mapping 2488 Mbit/s

Option OC-48c/STM-16c BERT BN 3060/90.93

Only in conjunction with BN 3060/91.50 to /91.53

Contiguous concatenation signal structure to ANSI T1.105.02 and G.707.

Error measurement to O.150

Test pattern ............................... PRBS-31, IPRBS-31

Programmable word

Length . ..............................................16bits

Error insertion Bit errors in test pattern, single error or

error ratio ................................ 1610

PRBS-23, IPRBS-23

±3

to 1610

±9

Page 12

Alarm generation: AU-AIS, AIS-C1...AIS-C16, AU-LOP, LOP-C1...LOP-C16

Error measurement and alarm detection: AU-AIS, AU-LOP Bit errors

Automatic Protection Switching Sensor: MS-AIS, AU-AIS

Solutions for 10 Gbit/s

With the new ANT-10Gig we provide a 10 Gbit/s solution which covers OC-192 as well as STM-64. The ANT-10Gig allows testing at the highest line bit rate and in all mappings below and offers optionally all testing down to n664 kbit/s. For detailed information please refer to data sheet ªANT-10Gigº. The ANT-20SE is prepared for upgrades towards STM-64/OC-192.

Further options

Optical Power Splitter (90%/10 %) BN 3060/91.05

The Optical Power Splitter is built into the ANT-20SE. Three optical test adapters are required to operate it; please indicate your choice.

OLA-15 Optical Attenuator (variable) BN 2239/01

One application of OLA-15 is in line-up of optical links, where line interruptions are simulated for bit error testing. The device is also useful when measuring the sensitivity of optical receivers. With its wide variable attenuation range and highly accurate and reproducible attenuation settings, the OLA-15 is an ideal companion to the ANT-20SE.

Calibrated at ............................... 1310 and 1550 nm

Attenuation range ..................................3to60dB

Resolution .......................................... 0.05 dB

See OLA-15 data sheet for details.

The Optical Power Splitter provides an optical monitor point. The input signal is passed through to the output transparently.

Light energy forwarded ..................approx. 90 % (±0.45 dB)

Light energy coupled out ................. approx. 10 % (±10 dB)

The Optical Power Splitter operates in the following ranges:

Wavelengths ............... 1260 to 1360 nm and 1500 to 1600 nm

Page 13

Jitter and Wander Options

Standards

Jitter generation and jitter/wander analysis are in accordance with:

Telcordia GR-253, GR-499, GR-1244

ANSI T1.101, T1.102, T1.105.03,T1.403, T1.404, T1.105.09

ITU-T G.783, G.823, G.824, G.825, O.171, O.172

ETSI ETS 300 462-1 to -6, ETS 300 417-1-1, EN 302 084

O.172 Jitter/Wander up to 155 Mbit/s BN 3060/91.30

Jitter generator

Fully complies with or exceeds the requirements of ITU-T O.172.

Bit rates Generates jitter at all bit rates included in the mainframe configuration up to 155 520 kbit/s.

TX signals .................. alltest patterns and frame structures

Built-in modulation generator (sinewave) ......... 0.1Hzto5MHz

External modulation . . ..........................0Hzto5MHz

Jitter amplitude ...................................upto64UI

included in the mainframe configuration

Low-pass filters ......... 40,60,100, 400, 800, 1300, 3500, 5000 kHz

Filter characteristics . . . ............................ asperO.172

Measurement ranges

Peak-peak

Range I/Resolution . ................... 0to1.6UIpp/1 mUIpp

Range II/Resolution . ...................0to20UIpp/10 mUIpp

Range III/Resolution .................0to200UIpp/100 mUIpp

RMS

Range I/Resolution . ................... 0to0.8UIpp/1 mUIpp

Range II/Resolution . .................. 0to10UIpp/10 mUIpp

Range III/Resolution .................0to100UIpp/100 mUIpp

Measurement accuracy ............................ asperO.172

Demodulator output

75 O, BNC socket

Range I (0 to 1.6 UIpp) .............................. 1V/UIpp

Range II (0 to 20 UIpp) ............................. 0.1V/UIpp

Range III (0 to 200 UIpp) .......................... 0.01 V/UIpp

Wander Generator

Fully complies with or exceeds the requirements of ITU-T O.172

Bit rates Wander generation at all implemented bit rates up to 155 Mbit/s according to the equipment level of the instrument.

Amplitude range ............................. upto200000UI

Frequency range ..............................10mHz to 10 Hz

Accuracy ........................................ asperO.172

Resolution ........................................... 1mHz

f1 f2

Clock rate/kHz A1 A2 f1 / Hz f2 / Hz f3 / kHz

1 544

2 048 1560 200

6 312 940 120

8 448 6250 800

34 368 27 k 3 500

44 736 35 k 4 500

51 840 27 k 3 500

139 264 39 k 5 000

155 520 39 k 5 000

622 080 * 1.0 256 20 k 5 000

* Requires option BN 3060/91.31

Modulator input

75 O, BNC socket

Voltage required ....................................0to2Vpp

Error limits ..................................... asperO.172

0.5 64 0.1

log f

625 80

Jitter Analyzer

Jitter measurement at all bit rates included in the mainframe configuration up to 155 520 kbit/s.

Wander Analyzer

Fully complies with or exceeds the requirements of ITU-T O.172

For all bit rates up to 155 Mbit/s according to the equipment level of the instrument. Other sampling rates in addition to the 30/s rate are available for detailed analysis versus time: Sampling rate ± Low-pass filter ±

Test duration .............................1/s-0.1Hz-99days

Amplitude range .............................+1nsto+10

Measurement accuracy ............................ asperO.172

Accessory: ªStandard Frequency Sourceº for wander applications, see end of chapter

30/s - 10 Hz - 99 h 60/s - 20 Hz - 99 h

300/s - 100 Hz - 5000 s

O.172 Jitter/Wander up to 622 Mbit/s BN 3060/91.31

Jitter Generator

Jitter modulation of STM-4 TX signals.

Built-in modulation generator (sinewave) ......... 0.1Hzto5MHz

External modulation . . ..........................0Hzto5MHz

Jitter amplitude ..................................upto256UI

Built-in filters

High-pass filters ................ 0.1, 2, 4, 10, 20, 40, 100, 200, 400,

500, 700 Hz,

1, 3, 8, 10, 12, 18, 20, 30, 65, 80, 250 kHz

Jitter modulation of externally-generated signals in Through mode

Externally-generated signals can be jittered in Through mode when the D&I option is included.

Page 14

This applies to all bit rates included in the mainframe configuration at the appropriate electrical and optical interfaces.

Built-in modulation generator (sinewave) ......... 0.1Hzto5MHz

External modulation . . ..........................0Hzto5MHz

Jitter amplitude ....................asforjitter generator in UIpp

O.172 Jitter/Wander up to 2488 Mbit/s BN 3060/91.32

Jitter Generator

Fully complies with or exceeds the requirements of ITU-T O.172

Jitter Analyzer

Measurement range

Peak-peak

Range I/Resolution . ................... 0to6.4UIpp/1 mUIpp

Range II/Resolution . .................. 0to80UIpp/10 mUIpp

Range III/Resolution .................0to800UIpp/100 mUIpp

RMS

Range I/Resolution . ................... 0to3.2UIpp/1 mUIpp

Range II/Resolution . .................. 0to40UIpp/10 mUIpp

Range III/Resolution .................0to400UIpp/100 mUIpp

Measurement accuracy ............................ asperO.172

Demodulator output

75 O, BNC socket

Range I (0 to 6.4 UIpp) ............................ 0.25 V/UIpp

Range II (0 to 80 UIpp) ........................... 0.025 V/UIpp

Range III (0 to 800 UIpp) ........................ 0.0025 V/UIpp

Wander Generator

Fully complies with or exceeds the requirements of ITU-T O.172

Bit rates Wander generation at all implemented bit rates up to 622 Mbit/s according to the equipment level of the instrument.

Amplitude range ............................. upto200000UI

Frequency range ..............................10mHz to 10 Hz

Accuracy ........................................ asperO.172

Resolution ........................................... 1mHz

Bit rate ...................................... 2488320kbit/s

Generator signal ................... test patterns, frame structures

depend on instrument configuration Built-in modulation generator (sinewave)

or external ................................. 0.1Hzto20MHz

Jitter amplitude ..................................upto800UI

UIpp

f0 f1 f2 f3 f4

Jitter frequency (log)

Bit rate/ kHz

2 488 320 ANT-20SE

A1/

A2/

A3/

A4/

UIpp

0.008 0.75 20 800 0.1 12.1 500 750 k 20 M

f0/Hzf1/Hzf2/Hzf3/Hzf4/

UIpp

Modulator input

75 O, BNC socket

Modulation frequency . ....................... 0.1Hzto20MHz

Required sinusoidal voltage ......................... 0to2Vpp

Error limits ..................................... asperO.172

Wander Analyzer

Fully complies with or exceeds the requirements of ITU-T O.172

Other sampling rates in addition to the 30/s rate are available for detailed analysis versus time: Sampling rate ± Low-pass filter ±

Test duration .............................1/s-0.1Hz-99days

Amplitude range .............................+1nsto+10

Measurement accuracy ............................ asperO.172

Reference signal input

Frequencies ............................1.544, 2.048, 5, 10 MHz

Bit rates .................................. 1.544, 2.048 Mbit/s

Balanced 110 O connector .............................Bantam

Clock input voltage

(sine or square wave) . . ...........................1.0to6.5Vpp

HDB3/B8ZS input voltage .........................+3V+10%

Coaxial 75 O connector ...................................BNC

Clock input voltage

(sine or square wave) . . ............................ 1.0to5Vpp

HDB3/B8ZS input voltage ......................+2.37 V+10%

Accessory: ªStandard Frequency Sourceº for wander applications, see

end of chapter

30/s - 10 Hz - 99 h 60/s - 20 Hz - 99 h

300/s - 100 Hz - 5000 s

Jitter modulation of external signals in Through mode

In Through mode, jitter can be superimposed on an external 2488 Mbit/s signal in conjunction with the D&I option. Internal and external modulation,

jitter amplitude ............................. seejitter generator

Jitter Analyzer

Fully complies with or exceeds the requirements of ITU-T O.172

Bit rate ...................................... 2488320kbit/s

Measuring ranges

Range I/Resolution ........................ 0to2UIpp/1 mUIpp

Range II/Resolution . . . .................. 0to32UIpp/10 mUIpp

RMS Range I/Resolution .................. 0to1.0UIpp/1 mUIpp

RMS Range II/Resolution .................0to16UIpp/10 mUIpp

Built-in filters

as per Telcordia GR-253, ANSI T1.105.03, ITU-T O.172, G.825, G.813

High-pass filters .......................... 5kHz,12kHz,1MHz

Low-pass filter ...................................... 20MHz

The high-pass filters can be switched off. Frequency range without high-pass filter

Meas. range I ....................................... 80Hz

Meas. range II ...................................... 10Hz

Page 15

Measuring modes ............................ seeJitter Analysis

Demodulator outpur

75 O, BNC socket Output voltage

Meas. range I (0 to 2 UIpp) .......................... 1V/UIpp

Meas. range II (0 to 32 UIpp) ..................... 62.5 mV/UIpp

Automatic tests ................. likejitter meter up to 622 Mbit/s

Tolerance masks at

MTJ/F-MTJ .................. ANSIT1.105.03, Telcordia GR-253,

ITU-T G.825

JTF ................... Telcordia GR-253, ANSI T1.105.03 type A,

ITU-T G.958

Wander Generator

Fully complies with or exceeds the requirements of ITU-T O.172

Amplitude range.............................. upto200000UI

Frequency range ..............................10mHz to 10 Hz

Accuracy ........................................ asperO.172

Resolution ........................................... 1mHz

Figure 7: Jitter peak-to-peak/RMS measurement.

Wander Analyzer

Other sampling rates in addition to the 30/s rate are available for detailed analysis versus time: Sampling rate ± Low-pass filter ±

Test duration .............................1/s-0.1Hz-99days

Amplitude range ..............................+1nsto+10

Measurement accuracy ............................ asperO.172

Evaluation capabilities

see Wander Analysis

Reference signal input

75 O, BNC socket

Frequencies ............................1.544, 2.048, 5, 10 MHz

Input voltage .................................... 0.5to5Vpp

Input signal monitoring

(Loss of Timing Input). ....................................LTI

Accessory: ªStandard Frequency Sourceº for wander applications, see end of chapter

30/s - 10 Hz - 99 h 60/s - 20 Hz - 99 h

300/s - 100 Hz - 5000 s

Jitter Analysis

Current values (continuous measurement)

Peak jitter value ......................................inUIpp

Positive peak value . . . ............................... inUI+p

Negative peak value . . . ............................... inUI±p

Maximum value (gated measurement)

Maximum peak jitter value .............................inUIpp

Maximum positive peak value ......................... inUI+p

Maximum negative peak value ......................... inUI±p

Result averaging (switchable) ........................... 1to5s

The ANT-20SE retains phase synchronicity even when pointer jitter occurs (phase tolerance to O.172).

Phase hits

The instrument detects when the programmable threshold for positive and negative jitter values is exceeded. The result indicates how often this threshold was exceeded. Setting range for positive and negative thresholds

(depending on measurement range) . . . .............. 0.1uptothe

half measurement range

Jitter versus time

This function is used to record variations of jitter with time. It allows the positive and negative peak values or peak-to-peak values to be displayed versus time. Measured values have one second resolution. Measurement duration is up to 99 days. By simultaneously evaluating alarms and errors, corellations between events can be quickly identified.

Figure 8: Jitter versus time display.

Clock jitter measurement

The ANT-20SE can also measure the jitter on the clock signals (square-wave) at standard bit rates. All built-in bit rates with electrical interfaces up to 155 Mbit/s can be measured.

RMS measurement

T1.105.03, GR-253, GR-499, G.958 (or G.783 rev.) The RMS value is measured on-line and displayed in UI. The peak jitter and RMS values can be displayed simultaneously; a graph versus time is available for long-term analysis. An RMS filter preset is available.

Page 16

Wander Analysis

Time Interval Error (TIE)

to O.172 ...............................numerical and graphical

Sampling rates ................. seeunder O.172 Wander Analyzer

for up to 622 Mbit/s

MTIE is additionally determined as a continually updated numerical value.

Figure 9: On-line wander testing (TIE).

To prevent data loss or premature termination of long term measurements, the ANT-20SE checks the remaining space on the hard disk before the start of the measurement. If necessary, the selected measurement time can be adjusted. The TIE values are recorded and are then available for subsequent offline MTIE/TDEV evaluations. The values are also saved in .csv format for documentation or further analysis.

Network synchronization quality is presented graphically using the MTIE (Maximum Time Interval Error) and TDEV (Time DEViation) parameters. To ensure correct assessment, the tolerance masks for PRC (Primary Reference Clock), SSU (Synchronization Supply Unit), SEC (Synchronous Equipment Clock) or PDH can be superimposed.

The results and masks can be printed out with additional user-defined comments.

This software allows several TIE results to be displayed simultaneously.

Decisive details during long term measurements disappear in the multitude of results. An effective zoom function is available for detailed wander characteristic analysis.

Result printout and export

The results can be printed out and stored internally or on floppy disk. The file format allows further processing using standard PC software.

Frequency offset and frequency drift rate (ANSI T1.101)

To ensure reliable operation when a clock source is in holdover mode, the frequency characteristics must not exceed specific deviation limits relative to an absolute reference source. To verify this data, the ANT-20SE determines the following over the selected measurement interval:

Frequency offset ...................................... inppm

Frequency drift rate . . . ............................... inppm/s

MRTIE ± Relative MTIE (G.823 and EN 302 084)

If the reference is unavailable (too far away) when analyzing the wander of asynchronous signals, the MTIE analysis may have a superimposed frequency offset. This offset depends on the difference between the signal and local reference clocks. The MRTIE measurement subtracts the frequency offset from the result so that the ªactualº wander characteristic is shown.

MTIE/TDEV Off-line Analysis Evaluation Software

This software provides extended off-line statistical analysis facilities for the results of wander measurements.

TIE values results obtained using the ANT-20SE are analyzed according to ANSI T1.101, Telcordia GR-1244, ETSI ETS 300 462, EN 302 084, ITU-T O.172, G.810 to G.813.

Figure 10: Display of MTIE/TDEV results and comparison

against masks.

Accessory for wander analysis

Standard frequency source .....................seeendofchapter

Automatic Measurements

The following automatic measurements can be run for all standard bit rates and interfaces included in the mainframe configuration (electrical/optical) up to 2488 Mbit/s.

Automatic determination of selective Jitter Transfer Function, JTF

Telcordia GR-499, GR-253, ANSI T1.105.03, ITU-T G.958

The Jitter Transfer Function indicates the ratio of the jitter amplitude at the output of the device under test to that at the input at various frequencies. This determines whether the device under test reduces or amplifies input jitter and at which frequencies. After a calibration measurement to minimize intrinsic errors, the ANT-20SE outputs a pre-selected jitter amplitude at various frequencies and measures selectively the jitter amplitude at the output of the device under test. The ratio of the amplitudes in dB is the Jitter Transfer Function.

The preselected amplitudes correspond to the mask for maximum permitted input jitter. The jitter frequencies and amplitudes can also be edited. The calibration values can be saved and used again for other measurements.

Page 17

Additional measurement mode

Transfer MTJ results: An MTJ measurement is first performed. The measured amplitude values can then be used automatically as generator values for the JTF measurement.

The results can be displayed in tabular and graphical form. The graphical display includes the standard tolerance masks specified in T1.105.03 and GR-253 or G.735 to G.739, G.751, G.758. The distance of the measurement points from the tolerance masks indicates the degree to which the device under test meets the requirements of the standard.

Tolerance mask violations during the measurement are indicated in the numerical table.

Freely programmable tolerance masks

The existing tolerance masks for the ANT-20SE can be altered as required to suit requirements that do not conform to specific standards. The new values selected for jitter frequency and jitter gain/loss are stored when the application is saved.

This extremely fast measurement tests the device under test for conformance to the standard tolerance mask limits for maximum tolerable jitter.

Jitter frequencies ...................... upto10fixedfrequencies

corresponding to standard tolerance mask

Detection criteria ...............................TSE(bit error),

code error, B2, B3, REI, RDI

Error threshold .............................0to999999errors

Settling time ..................................... 0.1to99.9 s

The editable frequency/amplitude values are set sequentially and the test pattern monitored for the permitted bit error count by the receiver. The result of each measurement is shown in a table as the status message ªOKº or ªFAILEDº.

Automatic determination of Maximum Tolerable Jitter, MTJ

ANSI T1.403, T1.404, T1.105.03, Telcordia GR-253, GR-499, ITU-T G.823, G.824, G.825, G.958

The ANT-20SE automatically determines the maximum jitter amplitude tolerated by the device under test at each jitter frequency.

Jitter frequencies .................. 20freely selectable frequencies

Detection criteria .............................. TSE(bit error),

code error, B2, B3, REI, RDI

Error threshold .............................0to999999errors

Settling time ..................................... 0.1to99.9 s

Gating time ....................................... 1to999s

Figure 11: Jitter transfer testing results.

Automatic limit testing of Maximum Tolerable Jitter (Fast Maximum Tolerable Jitter F-MTJ)

ANSI T1.403, T1.404, T1.105.03, Telcordia GR-253, GR-499, ITU-T G.823, G.824, G.825, G.958

Figure 12: Maximum Tolerable Jitter testing.

The maximum permissible jitter amplitude is determined precisely and quickly using a successive method. The ANT-20SE determines the exact limit value. The method is derived from long experience in the performance of jitter tolerance tests and is recognized by leading systems manufacturers.

The frequency/amplitude result pairs can be displayed in tabular and graphical form.

The graphical display includes the standard tolerance masks. The distance of the measurement points from the tolerance masks indicates the degree to which the device under test meets the requirements of the standard.

Tolerance mask violations during the measurement are indicated in the numerical table.

Freely programmable tolerance masks

The existing tolerance masks for the ANT-20SE can be altered as required to suit requirements that do not conform to specific standards. The new values selected for jitter frequency and amplitude are stored when the application is saved.

Automatic pointer sequences for analyzing combined jitter

(available with CATS Test Sequencer option) Among other things, T1.105.03 defines various pointer sequence scenarios for testing combined jitter (mapping and pointer jitter) at network elements. These sequences are normally selected manually and the jitter measured. ANT-20SE allows simple automation of these sequences. The entire sequence is started and the maximum pointer jitter determined with a single key press. This saves considerable time spent in setting up the test and executing the measurement.

Page 18

Automatic limit testing of Maximum Tolerable Wander, MTW

ITU-T G.823, G.824

The ANT-20SE tests the device under test for conformance to the standard tolerance mask limits for maximum tolerable wander.

Measurement poinits . . ....... upto10Frequency/Amplitude values

Detection criteria .........................TSE(bit error), alarms

Frequency range .....................10mHz to 10 Hz, step 1 mHz

Amplitude range .................. 0.1to200000UI,step: 0.1 UI

The result of each measurement is shown in a table with an ªOKº or ªFAILEDº message.

Accessory

Acterna TSR-37 DA 3700/00 Rubidium Timing Signal Reference

The TSR-37 is a powerful reference source to quickly measure and test the synchronization quality of PDH/SDH/SONET digital networks. MTIE and TDEV measurements for up to 1000 seconds can be easily performed without a GPS reference. Coupled with the optional GPS-FC, the range of observation time can be largely extended to meet specific requirements. Provides the reference clock for wander analysis using the ANT-20.

Figure 13: Maximum tolerable wander result display.

PDH/SDH/SONET Wander measurement source

Accuracy at 25 C: +5610

12 outputs, framed and unframed: 5 MHz, 10 MHz, 2.048 kHz, 1.544 kHz, E1, T1

Compact, robust & lightweight

External autocalibration input

Input for GPS or Cesium reference

See Acterna TSR-37 data sheet for details.

51610

±11

without GPS

±11

with GPS

Page 19

ATM Options

ATM Basic BN 3060/90.50

General

Adjustable test channel from 0 to 150 Mbit/s

In ATM network elements, user channels are monitored with the UPC (usage parameter control). The sensors of the control instance can be quickly checked if the bandwidth of a test channel exceeds the set threshold in the network element. For all measurements, the test channel in the ANT-20SE is set on-line. Settings are made directly with a control (Figure 15) which shows the bandwidth in Mbit/s, Cells/s or %. This makes it easy to simulate CBR (Constant Bit Rate) sources. For each interface, the load setting has a range from 0.01 % to 100 %. This corresponds to the load conditions which can occur in the real world.

Load profiles

A test channel can be generated with typical load profiles in order to stress network elements or simulate source profiles. In burst mode, for example, the burst load, burst length and burst period parameters can be used to simulate a video signal whose key figures correspond to a real-life signal.

Background load generator

To make a real-time measurement under loaded conditions, additional background load can be simulated to supplement the test channel (foreground traffic). The ATM channels are defined using an editor. The user specifies the repetition rate of the load cell and a sequence of empty cells. Load channels can be transmitted continuously as a sequence. The load generator can also be used separately with the test channel switched off. In this case, the channels and profiles can be user-specified.

Determining Cell Delay Variation

The ANT-20SE includes very powerful tools for measuring delay parameters. Once a precise measurement has been made, subsequent measurements usually require only a low-resolution display to allow rapid pass/fail assessment. Delay values are displayed by the ATM Traffic Analyzer as a histogram with a minimum class width equal to 160 ns (maximum 335 ms). As a result, delay fluctuations are shown graphically with the same resolution. An adjustable offset can be used to maintain measurement accuracy even if the delay values are high, e.g. over international links.

F4/F5 OAM alarm flow

In accordance with I.610 and the ATM forum standard, the status of ATM paths and channels is transmitted in the OAM cell stream (fault management). The ANT-20SE generates the alarms VP-AIS, VC-AIS or VP-RDI, VC-RDI for the foreground channel. The receiver simultaneously detects alarms and error messages in the channel and path.

Service Layer

ATM Adaptation Layer

ATM Layer

Physical Layer

Figure 14: ATM-BERT generator configuration.

Service Layer

ATM Adaptation Layer

ATM Layer

Physical Layer

Figure 15: Generator configuration for performance measurement.

Service Layer

ATM Adaptation Layer

ATM Layer

Physical Layer

Anomaly

and

Defect

Insertion

Anomaly

and

Defect

Insertion

Anomaly

and

Defect

Analyzer

Performance

PRBS Generator

AAL-1, AAL-0 Mapper

Cell Editor

Test Cell

Channel

Load, profile

Framing

Generator

SDH/PDH/SONET

O.191 Test Information

Test Cell

Channel

Load, profile

Framing

Generator

SDH/PDH/SONET

ATM BERT, QoS

AAL-1 Circuit-Reassembly

AAL-1 Performance

ATM

I.356

Pointer-

Analyzer

Background

Generator

Test signal

Cell Editor

Background

Generator

Test signal

Traffic Channel

Analysis and

Load

Measurement

SOH/POH

Monitor

Load

Test signal

Figure 16: Analyzers in the ANT-20SE ± A hierarchical overview.

Page 20

The ATM module comprises:

Generation and analysis of ATM cell streams

ATM layer cell transfer performance as per ITU-T I.356, O.191

AAL-1 segmentation/reassembly for circuit emulation

STS-3c/STM-1 with C4 ATM mapping, ANSI T1.105/107, ITU-T G.707

F4/F5 fault management OAM flow for AIS and RDI as per ITU-T I.610, ATM forum UNI 3.1

Generator unit

Bit rates of the framed cell streams ................. 155.520 Mbit/s

Cell scrambler X

+1 (ITU-T) ........... canbeswitched on and off

Circuit emulation

(for selected test cell channel) Generation of

an asynchronous channel ....................... 1544, 2048, 6312,

2048 kbit/s with PCM30 frame structure

ATM channel segmentation ...................AAL-1, ITU-T I.363

8448, 34 368, 44 736 kbit/s,

Receiver unit

Bit rates of framed cell streams .................... 155.520 Mbit/s

Cell scrambler X

+1 (ITU-T) ........... canbeswitched on and off

Measurement types

Test cell channel

Adjustable from ............................ 0to149.760 Mbit/s

Header setting ........................................ editor

Load setting in ............................. Mbit/s, Cells/sec, %

Test cells, payload pattern

AAL-0, Pseudo-Random

Bit Sequences (PRBS) . ....................... 2

AAL-1, Pseudo-Random

Bit Sequences (PRBS) . ....................... 2

Programmable word, length ............................. 16bits

Test pattern for ATM performance analysis, with

Sequence number ..................................... 3bytes

Time stamp ......................................... 4bytes

Error correction ......................................CRC-16

±1, 215±1, 223±1

Load profiles

Equidistant, setting range ................... 1to10000celltimes

Constant Bit Rate (CBR), setting range . ........... 0.01% to 100 %

Variable Bit Rate (VBR), settings

Peak cell rate ................................... 1%to100%

Mean cell rate .................................. 1%to100%

Burst size................................ 1to1023 cell times

Burst period ............................ 2to32767celltimes

Error insertion

Physical layer as with ANT-20SE basic instrument ATM layer, AAL: Correctable and non-correctable header errors

AAL-0, cell payload bit errors

AAL-1, sequence number errors

AAL-1, SAR-PDU bit errors

AAL-1 SNP, CRC errors

AAL-1 SNP, parity errors

Triggering ............................. single errors, error ratio,

n errors in m cells

Alarm generation

Physical layer as with basic instrument, also:

Loss of Cell Delineation ................................. LCD

ATM layer (for selected test cell channel):

OAM F4/F5 fault flow . ...........VPAIS, VP RDI, VP AIS+VC AIS,

VC AIS, VC RDI, VP RDI+VC RDI

Error measurement (anomalies), statistics

Detection of the following error types: Correctable and non-correctable header errors

AAL-0, cell payload bit errors

AAL-1, sequence number errors

AAL-1, SAR-PDU bit errors

AAL-1 SNP, CRC errors

AAL-1 SNP, parity errors

ATM performance analysis

Cell error ratio

Cell loss ratio

Cell misinsertion rate

Mean cell transfer delay

2-point cell delay variation measured between minimum and maximum cell transfer delay values

Cell transfer delay histogram

Number of classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Minimum class width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 ns

Maximum class width . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 ms

Settable offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 167 ms

Offset step width. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 ms

Alarm detection (defects)

Physical layer as with ANT-20SE basic instrument, also:

Loss of cell delineation . .................................. LCD

ATM layer (for selected test cell channel):

OAM F4/F5 fault flow . ...........VPAIS, VP RDI, VC AIS, VC RDI

User channel analysis

Concurrent X-Y chart (load vs. time) for:

All user cells

Average cell rate of a selected cell channel

Peak cell rate of a selected cell channel

Display units .............................. Mbit/s, Cells/sec, %

Channel utilization histogram

All user cells (ªassigned cellsº)

A selected cell channel (ªuser cellsº) Cell distribution of a selected cell channel with classification by:

User cells

F5 OAM flow

F4 OAM flow

User cells with CLP = 1

Background load generator

For programming user-defined cell sequences. The sequences can be transmitted at a selectable repetition rate.

Editor . .................................... 200ATMchannels

Header ....................................... user-selectable

Payload ............................. 1filler byte, user-selectable

Circuit reassembly

(for selected test cell channel)

Reassembly ................................AAL-1, ITU-T I.363

Error measurement on an

asynchronous channel . ................... 1544, 2048, 6312, 8448,

34 368, 44 736 kbit/s,

2048 kbit/s with PCM30 frame structure

Page 21

ATM Comprehensive BN 3060/90.51

includes the fuction of ATM BASIC BN 3060/90.50 and Broadband Analyzer Generator Module (BAG)

Selection of ready-to-run applications and graphics-supported test settings

The graphical method for making test settings is unique. The way that the ANT-20SE is connected to the device under test, the protocol layers and settings included in the test, or the ATM services to be tested can be quickly and easily seen. Users can select from a range of pre-defined test setups or customize their own. Pre-defined ATM channels can be selected from a database or new channels added. Additionally, all characteristics and parameters for each channel are also stored, for example: traffic type, circuit type, header, traffic contract, traffic source. An editor program is provided for defining the test circuits.

Direct testing of all contract parameters

Some of the main tasks facing measurement services are determining whether users are keeping to traffic contracts and how they are doing so, and establishing how the network handles such contracts. These questions can only be answered by means of a test that allows all the major service parameters to be set and measured.

For such applications, the Broadband Module includes an editor that permits all of the contract parameters for the various ATM services to be set for the first time. For terminal emulation, all contract characteristics and of the traffic model used for the test can be defined with the Channel Editor.

After starting the measurement, the ANT-20SE generates test traffic using the selected parameters. This allows direct demonstration of the way that the ATM network handles the user traffic and whether the agreed network resources were in fact available.

The source parameters can be varied on-line during the measurement. This makes it possible to detect policing errors or incorrect network access threshold settings quickly and easily.

Figure 17: The ATM Test Control windows makes operation simple.

Figure 18: Channel Editor: Setting the traffic descriptor.

Page 22

ATM QoS test with four different SVCs

The ANT-20SE with BAG can perform SVC and PVC tests on up to four circuits simultaneously. Multi-channel services, such as those used for multimedia applications, can thus be simulated. Any channel type can be selected from the database or newly defined for each channel. Real-time measurements conform to the ITU-T O.191 standard which defines the test cell format and the test algorithm. Important source parameters can be regulated on-line during the test. The results are clearly displayed, with graphics elements used to indicate defects or highlight status information.

Signalling analysis

Sequence errors in the signalling protocol adversely affect correct management of ATM services. They can be detected by recording and displaying all channel states and changes of state in chronological order with timestamp information. The ANT-20SE constantly monitors the states of the SVCs being tested. The protocol can thus be checked for correctness and any errors detected rapidly. The connection set up time is measured for all test channels.

Traffic management and contract optimization

Traffic shaping (single/dual leaky bucket) can be switched on for each ATM channel, even on-line during the measurement. In addition, the following are displayed per channel with soft LEDs:

Non Conforming Cells (NCC)

Dropped Cells (DC) Using this information it is possible to check whether the UPC (Usage Parameter Control) functions of the network are working and are implemented in compliance with the standard. At the same time, the degree of utilization of the traffic contracts can be determined. Using the facilities for simulating all relevant source parameters with up to four competing channels, it is possible to optimize the contract parameters in the network.

Figure 20: Soft-LED indication of multiplex results.

Figure 19: ATM test results for a real-time measurement on channel A.

Broadband Analyzer/Generator

The module includes software test functions for

ATM Test Controller

ATM Test Results

ATM Channel Explorer

STS-3c/STM-1 with C4/SPE ATM mapping to ANSI T1.105/107 and ITU-T G.707, I.432

ATM test controller

Professional record of results

The ANT-20SE generates a professional record of instrument settings and test results that is output from a standard printer. The record can be used for various purposes, e.g.:

Guarantee documentation

Acceptance documentation

Installation record

Evidence of adherence to contract, etc. In other words, the ANT-20SE handles the entire process from measurement through to producing a permanent record of the results.

ATM service categories

Switched circuits and permanent circuits for:

Constant bit rate ....................................... CBR

Real-time variable bit rate .............................. rt-VBR

Non real-time variable bit rate ......................... nrt-VBR

Deterministic bit rate . . .................................. DBR

Statistical bit rate ........................................SBR

Unspecified bit rate . . . .................................. UBR

Instrument port configurations

Emulation ....................................... SVCs,PVCs

Looped signal ..........................................PVCs

Test cell channels

Four test channels

settable from .............................. 0to149.760 Mbit/s

Header setting.......................................viaeditor

Load setting in ............................ kbit/s, Mbit/s, cells/s

Test cell format ............................... toITU-T O.191

Signalling emulation

Terminal emulation at the UNI as per ITU-T and ATM Forum recommendations

Protocol types........................................UNI3.0

UNI 3.1

Q.2931 Q.2961

Test types. .................................... Self-call, 2 SVCs

Calling, 4 SVCs

Called, 4 SVCs

Page 23

ATM channel editor

Traffic contract:

Direction type ..................................unidirectional

bi-directional symmetrical,

bi-directional asymmetrical Traffic descriptor

Peak Cell Rate ...........................................PCR

Cell Delay Variation Tolerance peak ...................CDVTpeak

Sustainable Cell Rate . . ...................................SCR

Burst Tolerance...........................................BT

Cell Delay Variation Tolerance sustained ...........CDVTsustained

Source parameters .............................. Cell clumping,

Burst size

Mean cell rate

Peak cell rate

On-line channel settings

Peak cell rate Cell clumping Mean cell rate Burst size

Traffic management

User-selectable shaping

CBR ......................................Single leaky bucket

DBR ......................................Single leaky bucket

rt-VBR .................................... Dualleaky bucket

nrt-VBR ................................... Dualleaky bucket

SBR....................................... Dualleaky bucket

UBR ...................................... Dualleaky bucket

Error insertion

Correctable and uncorrectable header errors Cell loss Cell error Cell misinsertion Severely errored cell blocks

Alarm generation

ATM layer alarms (for all test channels):

OAM F4/F5 fault flow . ...........VPAIS, VP RDI, VC AIS, VC RDI

ATM test results

Alarm detection, defects (ISM, OOS)

ATM layer alarms (for selected test cell channel):

OAM F4/F5 fault flow . ...........VPAIS, VP RDI, VC AIS, VC RDI

Signalling analysis

Channel set-up time Channel status with interpretation and timestamp Representation of ATM QoS for the SVC after clearing down the circuit.

ATM channel explorer (ISM, OOS)

Channel search: Automatic determination of up to 1000 ATM channels with indication of:

Channel number ....................................VPI, VCI

Explicit forward congestion

Indication BandWidth (%) ..............................CI-BW

CLP =1 BandWidth (%) .............................CLP1-BW

Average BandWidth . . . ................................. AvBW

Current BandWidth . . . .................................CuBW

Aging (switchable function) Sorts out inactive channels from the activity list.

AAL analysis: Automatic determination of AAL type for 1000 ATM channels. Graphic display of distribution.

Trouble scan: Automatic determination of VC AIS, VC RDI, VP AIS and VP RDI in up to 1000 ATM channels.

Add ATM SONET BN 3060/90.53

The ATM mapping options provide further frame structures for interfaces conforming to ANSI T1.105/107. Corresponding physical layer measurement functions are offered by the mapping options for the interfaces. These include error and alarm insertion, error measurement and alarm detection.

The following ATM mappings are included:

STS-1/STS-3 ATM mapping

Bit rate

STS-1 . .........................................51840kbit/s

STS-3 (36STS-1) ............... ...............155520kbit/s

Measurement modes

ISM.................................. In-Service Measurement

OOS ............................. Out-of-Service measurement

Receiver status (ISM, OOS)

Signal load, bandwidth Correctable and uncorrectable header errors

Errored seconds ...................... LCD,physical layer defects

ATM Quality of Service (QoS) for 4 SVCs or 4 PVCs

Cell error ratio

Cell loss ratio

Cell misinsertion rate

Mean cell transfer delay

Maximum cell transfer delay

Minimum cell transfer delay

2-point cell delay variation

Severely errored cell block ratio

Errored seconds ................ VPAIS, VP RDI, VC AIS, VC RDI

Activity ............. Analyzed cells, Not connected seconds (SVCs),

Loss of performance assessments capability seconds

DS3 (45 Mbit/s) ATM mapping and STS-1 DS3 ATM mapping

PLCP-based mapping HEC-based mapping

Bit rate .................... ....................44736kbit/s

DS1 (1.5 Mbit/s) ATM mapping

Bit rate .......................................... 1544 kbit/s

Add ATM SDH BN 3060/90.52

The ATM mapping options provide further frame structures for interfaces conforming to ITU-T G.804/832/707. Corresponding physical layer measurement functions are offered by the mapping options for the interfaces. These include error and alarm insertion, error measurement and alarm detection.

The following ATM mappings are included:

E4 (140 Mbit/s) ATM mapping

Bit rate ........................................139264kbit/s

Page 24

E3 (34 Mbit/s) ATM mapping

Bit rate .................... ....................34368kbit/s

E1 (2 Mbit/s) ATM mapping

Bit rate .......................................... 2048 kbit/s

STM-1/VC3 ATM mapping

Bit rate ........................................155520kbit/s

OC-12c/STM-4c ATM testing BN 3060/90.91

Only in conjunction with BN 3060/90.50 and BN 3060/91.11 or BN 3060/91.12

Signal structure (TC sublayer) contiguous concatenation to T1.646, I.432 and af-phy-0046.000 Cell scrambler X

Test cell channel

Adjustable from ............................ 0to149.760 Mbit/s

Header setting ........................................ editor

Load setting in .............. .............. Mbit/s, Cells/sec, %

Test cells, pay load pattern

AAL-0, pseudorandom bit sequences

(PRBS) .................................... 2

AAL-1, pseudorandom bit sequences

(PRBS) .................................... 2

Programmable word, length ............................. 16bits

Test cells for ATM performance analysis:

Sequence number ......................................3bytes

Timestamp ...........................................4bytes

Error checking .......................................CRC-16

Load profiles

Equidistant, setting range ................ 4to40000cell times +1

Constant Bit Rate (CBR), setting range . .............0.01% to 25%

Variable Bit Rate (VBR), settings

Peak cell rate ....................................1%to25%

Mean cell rate .................................. 1%to25%

Burst size ............................... 4to4092 cell times

Burst period ........................... 8to131068celltimes

Error insertion

Physical layer like basic ANT-20SE instrument ATM layer, AAL: Correctable and non-correctable header errors AAL-0, cell payload bit error AAL-1, sequence number error AAL-1, SAR-PDU bit error AAL-1 SNP, CRC error AAL-1 SNP, parity error Resolution: Single error, error ratio, M errors in N cells

+1 (ITU-T) ................ canbeswitched off

±1, 215±1, 223±1

Circuit emulation

Generation of asynchronous channels:

1.544, 2.048, 6.312, 8.448, 34.368, 44.736 kbit/s,

2.048 kbit/s with PCM30 frame structure

ATM channel segmentation ..................AAL-1, ITU-T I.363

Error measurement, anomalies, statistics

Detection of following error types: Correctable and non-correctable header errors AAL-0, cell payload bit error AAL-1, sequence number error AAL-1, SAR-PDU bit error AAL-1 SNP, CRC error AAL-1 SNP, parity error

ATM performance analysis

Cell error ratio

Cell loss ratio

Cell misinsertion rate

Mean cell transfer delay

2-point cell delay variation Measured between greatest and smallest value of cell transfer delay

Cell transfer delay histogram:

Number of classes........................................ 128

Min. class width ....................................... 160ns

Max. class width ...................................... 335ms

Adjustable offset ...................................0to167ms

Offset steps ........................................... 2.5ms

Alarm detection, defects (ISM, OoS)

Loss of Cell Delineation .................................. LCD

ATM layer (for any selected cell channel): OAM F4/F5 fault flow: VP AIS, VP RDI, VC AIS, VC RDI

Traffic channel analysis

Time chart simultaneously for

All traffic cells

Average cell rate of any selected cell channel

Peak cell rate of any selected cell channel

Display in ................................. Mbit/s, Cells/sec, %

Channel utilization histogram

All assigned cells

One selected cell channel (user cells)

Cell distribution in traffic channel Classification of one selected cell channel by

User cells

F5 OAM flow

F4 OAM flow

User cells with CLP = 1

Circuit reassembly

Reassembly ................................AAL-1, ITU-T I.363

Error measurement on asynchronous channels:

1.544, 2.048, 6.312, 8.448, 34.368, 44.736 kbit/s, 2.048 kbit/s with PCM30 frame structure

Alarm generation

Loss of Cell Delineation ................................. LCD

ATM layer (for any selected cell channel): OAM F4/F5 fault flow: VP AIS, VP RDI, VP AIS+VC AIS VC AIS, VC RDI, VP RDI+VC RDI

Background load generator

1 ATM channel can be switched ON/OFF

Header........................................ freely definable

Payload ................................ 1fill byte freely settable

CBR ............................................ 449Mbit/s

Page 25

AUTO ± Remote

ANT-20SE applications in the remote controlled production environment

V.24/RS232 Remote Control Interface BN 3035/91.01

Remote control of instrument functions using SCPI command structure

Interface ........................................V.24/RS232

GPIB (PCMCIA) Remote Control Interface BN 3035/92.10

Remote control of instrument functions using SCPI command structure. A GPIB adapter card for the ANT-20SE PCMCIA interface is supplied with this option

Interface ..............................................GPIB

TCP/IP Remote Control Interface BN 3035/92.11

Remote control of instrument functions using SCPI command structure

Interface ............................... 10/100 Mbit/s Ethernet

LabWindows driver BN 3038/95.99

Simplifies creation of remote-control programs for automated testing using LabWindows. The drivers can be used with options BN 3035/91.01 and BN 3035/92.10.

and monitoring ATM quality of service (QoS) parameters. Once created, test sequences are started with a single mouse click. A report in ASCII format for documentation purposes is compiled during the measurement. All test cases are predefined and ready to run. They can also be easily customized.

More information is found in the data sheet ªTest Automation and Remote Controlº.

Test Sequencer CATS PROFESSIONAL BN 3035/95.95

In many cases, especially in Design Verification, R&D, Regression Testing, Manufacturing and Conformance Testing it is not sufficient to automate a single test set. Rather, the software application has to deal with a number of test sets from different vendors, and in most cases it is also necessary to include the `System under Test' into an automated setup. The CATS PROFESSIONAL package is designed to make it easy to integrate the ANT-20SE into such test environments, by making existing CATS test routines available in such a way that they will run not only in a self-contained manner, but also as ready-made `plug-ins' into the customer's own test solution.

Test Sequencer CATS BASIC BN 3035/95.90

The Test Sequencer is the ideal tool for rapid, simple adaptation and automatic performance of complete test sequences on the ANT-20SE (CATS = Computer Aided Test Sequence). This saves time where repetitive tests are required in the production, installation and monitoring of SDH, SONET and ATM network elements. The comprehensive test case library includes solutions for various applications, such as BERTs, alarm sensor tests, jitter, offset and pointer tests

Start

Set Up ANT-20

Error Tests

Sensor Tests

Jitter Tests

Test Report

Customer application

Function call

CATS DLL

GPIB TCP/IP

GPIB Bus ± SCPI commands ±

Windows P

RS232

V. 24

Remotely controlled ANT-20SE

Third party equipment #1

PASS

Figure 21: Automatic test sequences with the ANT-20SE.

Third party equipment #2

Figure 22: CATS DLL controls via GPIB an ANT-20SE.

Page 26

CATS DLL

The CATS DLL runs on the calling PC (under Windows 2000, Me, NT or WIN95/98) and communicates with the ANT-20SE via a standard remote control interface (RS232, GPIB or TCP/IP). The customer software runs on the same PC and communicates directly with the DLL.

CATS ANT-20 remote controlled via TCP/IP

CATS TCP/IP is a different way of controlling the ANT-20SE in an automated environment. It is a special version of the CATS Test Sequencer that runs on the ANT-20SE itself. The customer's automation software can send commands to execute complete CATS testcases and receive results via an Ethernet socket connection. This approach comes in handy in a UNIX based environment where DLLs don't work.

The option includes the functionality of Test Sequencer CATS BASIC.

Remote Operation BN 3035/95.30

These options allow operation of the ANT-20SE from a Windows PC. The complete ANT-20SE user interface is transferred to the PC screen via modem or LAN link. This means that all the functions of the instrument can be used from any remote location. The results are simply transferred to the controlling PC for further processing. Applications include troubleshooting networks or centralized operation of test instrumentation and devices in the production and system test environment.

The package provides remote operation via a PCMCIA or external modem (V.24/RS232) which must be purchased separately or provides remote operation via an Ethernet socket.

Modem or LAN card

Site 1

Site 2

Public switched telephone network

PSTN

or Ethernet LAN

Modem or LAN card

Remote

operation PC

Figure 23: Remote operation of the ANT-20SE.

Page 27

Ordering Information

ANT-20SE Advanced Network Tester, SONET version BN 3060/02

(Includes STS VT1.5 SPE mapping; CPU RAM extension to 32 MB; menu in English or German.) With color TFT display touchscreen

Options

Extended SONET testing BN 3060/90.02

STS-1/STM-0 mappings: VT6 SPE (6 Mbit/s in STS-1) STS-1 SPE / STM-0 (DS3 in STS-1) VT2 SPE / STM-0 (E1 in STS-1) STS-3c SPE (E4 in STS-3) APS, TCM Analysis OH capture, OH sequencing

Add SDH BN 3060/90.04

STM-1 mappings C12 (2 Mbit/s in STM-1, AU-3/AU-4) C3 (34 Mbit/s in STM-1, AU-3/AU-4) C4 (140 Mbit/s in STM-1) C11 (1.5 Mbit/s in STM-1, AU-3/AU-4) C3 (45 Mbit/s in STM-1, AU-3/AU-4) C2 (6 Mbit/s in STM-1, AU-3/AU-4) BERT (2, 8, 34, 140 Mbit/s)

Drop & Insert BN 3060/90.10

M13 Mux/Demux chain BN 3060/90.12

PDH 64k/140M Mux/Demux chain BN 3035/90.11

Add BERT SDH (2, 8, 34, 140 Mbit/s) BN 3060/90.33

Optical Packages

Include optical interfaces from 52 Mbit/s to 2488 Mbit/s and four optical adapters ± please select; include OC-48c/STM-16c Bulk, OC-12c/STM-4c BULK

Optics OC-1/3/12/48, STM-0/1/4/16, 1310 nm BN 3060/90.55 Optics OC-1/3/12/48, STM-0/1/4/16, 1550 nm BN 3060/90.56 Optics OC-1/3/12/48, STM-0/1/4/16, 1310 &1550 nm BN 3060/90.57 Optics OC-1/3/12, STM-0/1/4, 1310 nm Optics OC-48, STM-16, 1550 nm BN 3060/90.58

Optical Attenuator (plug-in)

SC-PC, 1310 nm, 15 dB BN 2060/00.61 FC-PC, 1310/1550 nm, 15 dB BN 2229/90.33

Optical Power Splitter (90%/10%) BN 3060/91.05

includes 3 optical adapters ± please select

Optical Test Adapters

ST type (AT&T) BN 2060/00.32 HMS-10/A, HFS-13/A (Diamond) BN 2060/00.34 HMS-10, HFS-13 (Diamond) BN 2060/00.35 ªKeyed Biconicº, Twist-Proof (AT&T) BN 2060/00.37 D4 (NEC) BN 2060/00.40 DIN 47256 BN 2060/00.50 FC, FC-PC (NTT) BN 2060/00.51 E 2000 (Diamond) BN 2060/00.53 SC, SC-PC (NTT) BN 2060/00.58

Acterna offers a wide range of optical power meters, sources and attenuators. Contact your local sales representative for details.

O.172 Jitter and Wander

O.172 JitterWander Paket up to 155 Mbit/s BN 3060/91.30

Includes MTIE/TDEV offline analysis

O.172 Jitter/Wander Packet up to 622 Mbit/s BN 3060/91.31

Includes MTIE/TDEV offline analysis

O.172 Jitter/Wander Packet up to 2488 Mbit/s BN 3060/91.32

Includes MTIE/TDEV offline analysis

O.172 Jitter/Wander at only 2488 Mbit/s BN 3060/91.33

Includes MTIE/TDEV offline analysis

O.172 Jitter at only 2488 Mbit/s BN 3060/91.34

Optical Interfaces

The following options BN 3060/91.01 to /91.12 are alternatives.

Optical OC-1/3, STM-0/1, 1310 nm BN 3060/91.01 Optical OC-1/3, STM-0/1, 1310 & 1550 nm BN 3060/91.02 Optical OC-1/3/12, STM-0/1/4, 1310 nm BN 3060/91.11 Optical OC-1/3/12, STM-0/1/4, 1310 & 1550 nm BN 3060/91.12

The options BN 3060/91.50 to /91.52 are alternatives.

Optical OC-48, STM-16, 1310 nm BN 3060/91.50 Optical OC-48, STM-16, 1550 nm BN 3060/91.51 Optical OC-48, STM-16, 1310/1550 nm switchable BN 3060/91.52

OC-12c/STM-4c Options

OC-12c/STM-4c Bit Error Tester BN 3060/90.90

Requires Optical Module BN 3060/91.11 or /91.12

OC-12c/STM-4c ATM Testing BN 3060/90.91

Requires Optical Module BN 3060/91.11 or /91.12

and ATM BASIC BN 3060/90.50 OC-12c/STM-4c Virtual Concatenation BN 3060/90.92

Requires BN 3060/90.90 or /90.91

OC-48c/STM-16c Option

OC-48c/STM-16c Bit Error Tester (Bulk) BN 3060/90.93

ATM Functions

ATM Basic

for STM-1/STS-3c BN 3060/90.50

ATM Comprehensive BN 3060/90.51

Includes ATM Basic and BAG

Add ATM SDH BN 3060/90.52

Requires ATM module BN 3060/90.50 or BN 3060/90.51

E4 (140 Mbit/s) ATM mapping E3 (34 Mbit/s) ATM mapping E1 (2 Mbit/s) ATM mapping VC-3 ATM mapping in STM-1 (AU-3/AU-4)

Add ATM SONET BN 3060/90.53

Requires ATM module BN 3060/90.50 or BN 3060/90.51

STS-1 (51 Mbit/s) ATM mapping DS3 (45 Mbit/s) ATM mapping DS1 (1.5 Mbit/s) ATM mapping

OC-12c/STM-4c ATM Testing BN 3060/90.91

Requires Optical Module BN 3060/91.11 or /91.12

Page 28

Remote Control Interfaces

V.24/RS232 Remote Control Interface BN 3035/91.01 GPIB Remote Control Interface BN 3035/92.10 TCP/IP Remote Control Interface BN 3035/92.11 LabWindows CVI driver BN 3038/95.99

Remote Operation

Remote operation BN 3035/95.30

Test Automation

Test Sequencer CATS BASIC BN 3035/95.90 Test Sequencer CATS PROFESSIONAL BN 3035/95.95

Calibration report BN 3060/94.01

(Calibration is carried out in accordance with quality management system certified to ISO 9001.)

Accessories

Transport case for ANT-20SE BN 3035/92.03 External keyboard (UK/US) BN 3035/92.04 Decoupler (± 20 dB, 1.6/5.6 jack plug) BN 3903/63 TKD-1 probe, 48 to 8500 kbit/s BN 822/01

Training courses

Location: 72800 Eningen u.A., Germany Information about availability and other locations available on request.

ªSDH/SONET troubleshootingº BN 3035/89.01 ªSynchronizationº BN 3035/89.02 ªSolving Jitter Problemsº BN 3035/89.03 ªSDH/SONET Quality of Serviceº BN 3035/89.04 ªOptimizing Your SDH/SONET Networkº BN 3035/89.05 ªTurning up ATM Servicesº BN 3035/89.30 ªATM Traffic Managementº BN 3035/89.31 ªATM Quality of Serviceº BN 3035/89.32

Page 29

ANT-10Gig is a subset

of the ANT-20SE.

This test solution handles

OC-192c/STM-64c, taking

you one step further

into the future. It offers

access to all standard

interfaces from 1.5 Mbit/s

up to 10 Gbit/s.

ANT-20SE ± combination

and parallel operation of all bit rates up to OC-48 with jitter/wander up to

2.5 Gbit/s and ATM in a single unit. Now also with OC-192 optical interfaces.

ANT-20 ± Compact and

handy for field work. It offers one extension slot for OC-48, Jitter up to OC-12 or Comprehensive ATM testing.

Page 30

Global Headquarters

20400 Observation Drive Germantown, Maryland 20876-4023 USA Toll Free 1-800-638-2049 Tel. +1-301-353-1550 Fax +1-301-444-8468

www.acterna.com

REG.NO 572 - 02

Regional Sales Headquarters

North America

20400 Observation Drive Germantown, Maryland 20876-4023 USA

Toll Free 1-800-638-2049 Tel. +1-301-353-1550 Fax +1-301-444-8468

Latin America

Av. Eng. Luis Carlos Berrini, 936-8/9. Andar 04571-000 So Paulo, SP Brazil

Tel. +55 11 5503 3800 Fax +55 11 5505 1598

Asia/Pacific

42 Clarendon Street PO Box 141 South Melbourne, Victoria 3205 Australia

Tel. +61 3 9690 6700 Fax +61 3 9690 6750

Acterna is present in more than 80 countries. To find your local sales office, go to www.acterna.com

Western Europe

Arbachtalstrasse 6 72800 Eningen u.A. Germany

Tel. +49 7121 86 2222 Fax +49 7121 86 1222

East Europe, Middle East & Africa

Elisabethstrasse 36 PO Box 13 2500 Baden Austria

Tel. +43 2252 85521 0 Fax +43 2252 80727

Neopalimovskiy Per. 15/7 (4thfloor)

1 119121 Moscow Russia

Tel. +7 095 248 2508 Fax +7 095 248 4189

Subject to change without notice ± TP/EN/D085/0501/AE repl D064 ± Printed in Germany

Atec JDSU-ANT-20SE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual