1.3 Control & Operation
1.3.1 Switching Modes
There are three possible modes to control the RF switch position in the 2282-122-xx which are:
1. Manual
2. Remote
3. Auto
These three modes are defined below and described in detail in the following sections.
Manual Mode
Manual mode is enabled and disabled locally from the front panel only. Manual control will override both
Remote and Auto control when enabled.
Remote Mode
Remote mode is enabled and disabled remotely from either serial M&C commands (RS232 or RS485) or
Ethernet (webpage or SNMP) commands. Remote control will override Auto control but not Manual control.
Auto Mode
Auto mode is the default switch control mode and is enabled when Manual and Remote modes are disabled.
When the unit is in Auto mode the switch position is automatically selected based on the state of each channel’s
alarm. For example, if channel 1 is alarmed and channel 3 (the backup channel) is not then the unit will
automatically backup channel 1.
1.3.2 Manual (Switching) Mode
To override auto switching via the Front Panel Menu …
1) Place the unit in MANUAL MODE by selecting “YES” from the Enable Manual Mode menu.
The front panel MANUAL LED will illuminate red to indicate that the unit is in Manual mode.
2) Press the MENU/EXECUTE button to advance to the next menu. The LCD display will display the
following message showing the current position of the switch:
2282-122-21 Manual, Rev. A
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07/01/20
SWITCH POSITION= R
BACKUP CH1
ENABLE MANUAL R
MODE? YES