beautypg.com

Specifications ant-20se sonet, Generator unit – Atec Acterna-JDSU-ANT-20SE User Manual

Page 3

background image

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 736 kbit/s; B3ZS, CMI

STS-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 840 kbit/s; B3ZS, CMI

STS-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 520 kbit/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

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

11

±1

The various mappings are described along with the options.

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 byte-

sequence 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 or 48 byte sequence

Error insertion

Error types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1, B2, B3 parity errors,

frame alignment signal errors, REI-L,

REI-P, bit errors in test pattern,

code errors (single errors)

Triggering

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

±3

to 1610

±10

for B1, B3, REI-P . . . . . . . . . . . . . . . . . . . . . . . . 2610

±4

to 1610

±10

for bit errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1610

±2

to 1610

±9

Step size for mantissa and exponent . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Burst error: m anomalies in n periods

For FAS, B1, B2, B3, REI-L, REI-P . . . . . . . . . . . . . . m= 1 to 4.86610

6

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

3

Manual

pointer

manipulation

or using

pre-defined

standard

sequences

Figure 1:

Pointer actions.