Anritsu MP1777A Bedienungsanleitung PDF herunterladen (Seite 16)

Supports ATM from 1.5M to 622M rates

TC layer mappings of 622M, 156M, 52M, 139M, 45M, 34M, 2M

and 1.5M are supported along with ATM mappings of O.191,

AAL1, AAL2, AAL3/4, and AAL5, which makes the MP1570A

ideal for various combinations of layers.

CPCS Layer Data Creation

The cell format supports both ATM (O.191, user program) and

each AAL type. PRBS, word pattern, edit pattern, and time

stamp can be inserted as the payload for each format.

In particular, CPS packet editing is possible for AAL2, and

CPCS-PDU editing is also possible for AAL3/4 and AAL5.

In addition, CBR, burst, Poisson, and sawtooth waveforms can

also be selected as the cell generation timing, making the traffic

appear even more like an actual line.

ATM

Cell header Payload

Payload Payload

PayloadPointerSNPSNCSI

Payload

PPT UUI HEC

Payload

CPI B tag BA size

LICID

MID LI CRC10SNST MID

LIPAD

CRC10

CPI LengthCPCS-UUPAD

CRC10

ALPAD E tag Length

SNST

Payload

PPT UUI HECLICID

P PADSNOSF

SN TS TCPT CRC16

ATM

(

O.191

)

ATM

(

user program

)

AAL2

AAL3/4

AAL5

AAL1

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 38 39

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