7703BPX-DC-RF
2X1 RF Protection Switch
Revision 1.0
Page 11
To operate in external (GPI) mode, set the EXT item to ON. The Switch mode is now selectable based
on the GPI1 and GPI2 settings. Table
4-2 shows the settings to achieve the desired switch state. The
Auto Switch Back
and
No Auto Switch Back
Modes operate as described in Table
4-1. The
ACTV
menu item controls whether the active GPI state is high or low.
Operating
Manual
Auto
Mode
CH A
CH B
Switch Back
No Switch Back
GPI1
Active
Inactive
Inactive
Active
GPI2
Inactive
Active
Inactive
Active
Table
4-2: Controlling the Switch Using GPI Inputs – 7703BPX-DC-RF
4.2.7. Selecting High or Low as GPI Active State
The 7703BPX-DC-RF allows setting the Active state of the GPIs as high or low. Enter the SET menu
and toggle to the ACTV menu item.
SET
HIGH
Sets the selected GPI input to high
LOW
Sets the selected GPI input to low
ACTV
HIGH
LOW
4.2.8. Setting the RF Power Threshold for Auto Mode Switching
The
MINA
and
MINB
display in the
SET
menu allows the user to set the minimum input RF power
threshold for each channel before the auto switch function will occur. To increase the RF power
threshold press the toggle switch up. To decrease the RF power threshold press the toggle switch
down.
SET
The threshold will be shown in dBm.
MINA
MINB
dbm threshold
4.2.9. Changing the Orientation of the Text on the Display
The
DISP
display allows the user to select a horizontal or vertical orientation for the displays to
accommodate mounting the module in the 3RU or 1RU frames. To change the orientation of the display
press the toggle switch. The following list describes possible display options and their significance.
SET
VERT
Vertical orientation suitable for modules installed in the 3RU frame.
HOR
Horizontal orientation suitable for modules installed in the 1RU
frame.
DISP
HORZ
VERT
