Ericsson 1553-FGC 101 1010 Uen A Guia do Utilizador descarregar pdf (Página 185)

Technical Specification

B.2.4 Modulator Characteristics

The EQ8096 modulator assembly conforms to the specification defined in Table B.6.

Table B.6 Modulator Characteristics

Parameter Specification

Number of QAM modulators per output 4

Specification ITU-T J.83 Annex A/B/C

Modulation type 64, 256 QAM DOCSIS 3.0

Square-root Nyquist filtering 32-tap filter, stop band attenuation min. 60 dB

DAC (digital-to-analogue converter) 14 bit D/A

FEC According to ITU-T J.83 annex A/B/C

Symbol rate DOCSIS 3.0

Modulation data rate max. 57.6 Mbps (incl. FEC)

MER DOCSIS 3.0

BER < 10e

-10

I/Q amplitude imbalance < 0.1 dB

I/Q phase imbalance < 0.1 deg

Channel bandwidth 6 or 8 MHz

B.2.5 Ethernet Control

B.2.5.1 Connector Specification

The Ethernet Data connector specification is shown in Table B.7.

Table B.7 Ethernet Control Connector

Item Specification

Safety status SELV

Connector designation 10/100/1000 Control

Connector type 8-way, RJ-45 socket

Signal type 10/100BaseT Control

Data type Control only

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B-7

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