Instruction manual

1.3 Control & Operation
The 2082-14x-47 Redundant Unit Controller is designed to be 'controlled' either Locally or Remotely
(Local/Remote) and the 'switching' is either Automatic or Manual (Auto/Manual). The controller defaults to
Local (control)/Auto (switching) mode. These are described in more detail below.
1.3.1 Local/Remote (Control) Mode
Local mode is the default 'control' mode of the controller. When the unit is in the local mode it will ignore any
serial commands it receives through serial M&C connector J3 or through the ethernet interface. Local mode
means control of the system is managed with front panel commands and external “ground to activate” inputs.
A grounded external input will override the front panel input that controls the same function. The following
table describes the “ground to activate” pins located on the DB37 parallel I/O connector and their function.
When the unit is in the remote mode it will respond only to serial M&C commands or ethernet Webpage and
SNMP commands.
Auto/Manual Select: Ground to activate Manual Mode.18
FunctionDB37 (J1) Pin
1.3.2 Auto/Manual (Switching) Mode
Auto mode is the default 'switching' mode of the controller. When in the auto mode the controller is
continuously monitoring the status of AMP1 and AMP2. If a fault is detected from AMP1 then AMP2 is
switched into the signal path of the faulted unit.
Manual mode may be set via a front panel command, an M&C port command, or by grounding the
AUTO/MAN external input (J1, pin 18). When the controller is in the manual mode it ignores fault and alarm
inputs and allows the user to manually operate the waveguide switch.
There are 3 methods available to manually operate the waveguide switch.
Method 1 is locally from the front panel interface. The unit must be in Manual Mode and Local Mode to use
this method.
Method 2 is remotely from the serial M&C or Ethernet (optional) interface. The unit must be in Manual Mode
and Remote Mode to use this method.
Method 3 allows the user to physically (“manually”) turn the waveguide switch by hand. The unit must be in
Manual Mode but may be in either Local or Remote Mode when using this method.
2082-14x-47 Manual, Rev. B Page 5 12/19/13