GatesAir Inc. CZF Manual De Usuario
APEX
™
Exciter Incorporating FLO
™
Technology
Details of the Exciter Status Screens
Navigating the LCD Display Screens
26
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03/08/07
888-2604-001
Page: 3-27
WARNING: Disconnect primary power prior to servicing.
3.4.6.2
External I/O Board Status Screen
ExternalIOStatus.bmp
Figure 3-25 External I/O Board Status Screen
The External I/O Board Status screen is shown in Figure 3-25, with screen entries listed
below. These entries represent the command inputs and the status and analog outputs that
enter and leave connector J1 of the external I/O board at the rear of the exciter.
below. These entries represent the command inputs and the status and analog outputs that
enter and leave connector J1 of the external I/O board at the rear of the exciter.
• Analog 1: 0.000V refers to analog input 1.
• Analog 2: 0.000V refers to analog input 2.
• Analog 3: 0.000V refers to analog input 3.
• Analog 4: 0.000V refers to analog input 4.
• Output 1, Input 1, Output 2, and Input 2.
These are binary representations of the 16 digital input/output status channels. They
refer to the fact that 2 - 16 bit registers are required to handle the 16 status channels.
These entries are used for factory testing.
refer to the fact that 2 - 16 bit registers are required to handle the 16 status channels.
These entries are used for factory testing.
• Foldback: This in an analog input which tells the percent of exciter output power fold-
back, typically due to transmitter PA VSWR exceeding a preset level.
When VSWR foldback is active the foldback readout on the External I/O status page
will be yellow.
will be yellow.
• Raise: (OFF or ON) When on, this input commands the exciter output power to raise.
• Lower: (OFF or ON) When on, this input commands the exciter output power to low-
er.
• Mute: (OFF or ON) Exciter RF output amplifier mute function status.
Off mode allows RF to flow through the output connector (J2) to the transmitter.
On (enabled) switches the RF output to connector J3, which has a test load.
In either mode a sample of the output is available at connector J4.
On (enabled) switches the RF output to connector J3, which has a test load.
In either mode a sample of the output is available at connector J4.
• EQ Hold: (Off or On) When on, this input places the three adaptive equalizer inputs,
shown on the main screen, to hold. This holds the adaptive equalizer (RTAC) to the
settings that existed when the hold command was given.
settings that existed when the hold command was given.
• Eq Reset: (Off or On) Normally off, when momentarily turned on the adaptive equal-
izer will be reset.