Cisco Prisma II 1310 nm HDTx Transmitters Installation Guide
1-10
Introduction
78-748704-01 Rev C
Processor Configuration Options
Introduction
The following processor options are user-configurable.
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Optical receivers
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RF output (muting)
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Attenuation
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Alarms
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Test point selector and –20 dB test point
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Redundant mode
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External connections
These options can be restored to the factory default at any time.
Optical Receivers
Both Prisma II bdr Optical Receivers may be configured to Active or Idle. The
default setting is Active. When idle, an optical receiver’s output is muted, and
alarms associated with the optical receiver are disabled.
RF Output (Muting)
The processor can be configured to automatically or manually mute the RF output of
individual channels 1A, 2A, 1B, and 2B. The default setting is Auto.
When an optical receiver is configured to Auto and is configured for internal or
When an optical receiver is configured to Auto and is configured for internal or
external redundancy, the processor determines whether each RF output should be
muted based on alarms, such as missing optical receiver or loss of signal.
The processor can also be configured to manually mute RF output of individual
The processor can also be configured to manually mute RF output of individual
channels. If RF output is configured to:
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On, the channel’s RF output is not muted.
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Off, the channel’s RF output is muted.
For more information on redundancy, see Redundant Mode later in this section.
Attenuation
The amount of attenuation for each of the four RF output channels of the processor
can be individually configured.
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Using the ICIM, the RF output of channels 1A, 2A, 1B, and 2B can be individually
attenuated over a range of 0 dB to 10 dB in 0.5 dB steps.
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Using LCI or TNCS, each RF output can be individually attenuated over a range of
0 dB to 10 dB in 0.1 dB steps. The default setting is 0 dB.