Tahoe 289, Руководство пользователя

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Tahoe 289 E3/T3/Ethernet Bridge
Control and settings
Device settings are available from the LCD menu and through the serial console.
G.703 settings
Serial E3 / T3 (DS3) interface settings.
CIR
Committed Information Rate. Limits the transmit data rate to a specified value from 512kbps up to
full link throughput in 512kbps steps.
Transmit clock
Choses the source of the transmitter clock. A local oscillator or a remote clock recovered from the
serial line receiver may be selected. Available settings:

Local Osc. use local reference oscillator

Received clock use recovered clock
Invert clock
Determines on which clock edge data is updated and sampled respectively.

Normal update and sample on rising clock edge

Inverted update and sample on falling clock edge

Inverted Tx update on falling and sample on rising clock edge
Cable length
Indicates cable length for waveform shaping in T3 (DS3) mode. Ignored for E3 converters.

below 70m cable no longer than 70m (225ft)

above 70m cable longer than 70m (225ft)