MT9076AB Просмотр технического описания (PDF) - Mitel Networks

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MT9076AB

T1/E1/J1 3.3V Single Chip Transceiver

Mitel Networks 

Preliminary Information

MT9076

MT9076 Detailed Feature List

Standards Compliance and Support

T1/J1 Mode

ANSI:

T1.102,T1.231, T1.403, T1.408

AT&T:

TR 62411, PUB43801

Telcordia:

GR-303-CORE

E1 Mode

ETSI:

ETS 300 011, ETS 300 166, ETS 300 233,

ETS 300 324, ETS 300 347

ITU:

G.703, G.704, G.706, G.732 G.775,

G.796, G.823, I.431, G.964, G.965

TTC:

JT-G703, JT-G704, JT-G706

Line Interface Unit (LIU)

• T1 and E1 modes use the same 1:2.4 transmit and receive transformers

• Internal register allows termination imepedance to be changed under software control.

• Programmable pulse shapes and pulse amplitudes

• Automatic or manual receiver equalization

• Receive signal peak amplitude is reported with 8-bit resolution

• Output pin to indicate Loss Of Signal/ Loss Of Frame synchronization

• LIU output is disabled at power-up until enabled by software

• Input pin to force transmission of AIS

T1/J1 Mode

• Reliably recovers signals with cable

attenuation up to 43dB @ 772 kHz

• Transmit pulse meets T1.403 and T1.102

pulse templates

• Indicates analog Los Of Signal if the received

signal is more than 20 dB or 40dB below

nominal for more than 1ms

• Receiver tolerates jitter as required by AT&T

TR62411

• Transmit Pre-equalization and Line Build Out

options:

0-133 feet

133-266 feet

266-399 feet

399-533 feet

533-655 feet

-7.5dB

-15dB

-22.5dB

E1 Mode

• Reliably recovers signals with cable

attenuation up to 43 dB @ 1024 kHz

• Transmit pulse meets G.703 pulse template

• Indicates analog Los Of Signal if the received

signal is more than 20dB or 40dB below

nominal for more than 1ms

• Receiver tolerates jitter as required by ETSI

ETS 300 011

9

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