Preliminary Information
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
TTC:
JT-G703, JT-G704, JT-G706
Line Interface Unit (LIU)
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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
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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
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E1 Mode
E1 Mode
MT9076
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
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
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