Harmonic HRR 4104, Product Manual

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HLP 4200WD Display
HRR 4104 Return Path Receiver Product Manual Rev A (3/05) 3–5
3.1.3.1 Receiver Diagnostics Menu
The Receiver A Diagnostics menu is shown in Figure 3-3 on page 3-4.
The Diagnostics menu under each receiver lets you obtain basic operating
parameters, as shown in Table 3-1.
3.1.3.2 Receiver Adjust Menu
The Receiver A Adjust menu is shown in Figure 3-3 on page 3-4. The Adjust
menu under each receiver allows you to:
• Specify the optical alarm limit
• Choose 1550 or 1310 nm wavelength, to ensure proper optical power
readings
• Force the receiver into mute status (thereby activating the backup receiver
in a redundant pair), or do not force it (allowing the receiver to default to
the original configuration)
• Enable or disable AGC
• Adjust the AGC pad and optical setpoints
• Specify the AGC pad maximum and minimum
• Adjust the manual RF pad value
The Receiver Adjust menu settings are described in Section 4.1 Adjustment
Options on page 4-1. Step-by-step setup instructions are provided in Section
4.3 Setup via HLP 4200WD Display on page 4-4.
Table 3-1: Receiver Diagnostics
Parameter Description
Optical Power
(Wavelength) Current optical input power to the receiver and
wavelength (1310 or 1550 nm).
Primary/Backup/
Standalone Module
Muted/Not Muted Whether the module is configured as primary, backup, or
standalone; and whether the receiver is muted.
AGC Mode
Enabled/Disabled Whether automatic gain control (AGC) mode is currently
enabled or disabled. When AGC mode is disabled, the
receiver is in manual gain control (MGC) mode.
AGC RF Pad Setpoint Actual pad value in dB when in AGC mode. [SET xxdB]
was the pad setting when AGC mode was enabled.
AGC Optical Setpoint Reference input power (in dBm).
AGC Pad Maximum Maximum pad value allowed in AGC mode.
AGC Pad Minimum Minimum pad value allowed in AGC mode.
Manual RF Pad Value Current RF pad value (AGC is disabled).