Cisco Cisco D9804 Multiple Transport Receiver インストールガイド
Setup Menu
78-4042990-01 Rev B
79
Transport Default C/N Margin Relationship
The following diagram displays the transport default C/N margin relationship:
Noise Cutoffs and ASI Output Muting
The D9804 MTR uses the noise cutoff and restore settings as limits during normal
operation to mute the transport input in the event of a noisy signal, poor signal, or
no signal condition.
operation to mute the transport input in the event of a noisy signal, poor signal, or
no signal condition.
When the transport input is muted, the D9804 MTR ASI outputs are affected. The
effect on the ASI outputs depends on the configured ASI output format and the
Deterministic Remultiplexing Setup controls.
effect on the ASI outputs depends on the configured ASI output format and the
Deterministic Remultiplexing Setup controls.
ASI Outputs with Raw, Pass, Drop, or Decombine Format
The output mute follows the following transport muting:
If the transport is muted, then the output is muted.
If the transport is restored, then the output is restored.
RF Signal Margin
Transport Muted
ASI Output Muted
< Transport Cutoff
ASIx Muted - Poor signal
RFx - Poor RF signal
Muted
> Transport Restore
Alarms cleared
ASI outputs and content
restored
restored