Nautel NX100, Руководство по предварительной установке

Страница: 74 / 99

NX100 Pre-installation Manual Planning control/monitor connections
Issue 3.2 2017-03-31 Page 8-5
Remote inputs
You can connect to up to 16 remote inputs, which allow you to remotely control various operational
characteristics of the transmitter. Each input is mapped to a control that is user defined. See
Table 8.1
on page 8-5 for a list of input options and their functional descriptions. See Table 8.2 on page 8-6 for
the associated input terminals and control switches (see “Backup control switches” on page 8-8 ) on
the remote interface PWB (A11A4). Refer to the NX100 Operations and Maintenance Manual for
instructions on changing the remote input settings, including which setting is assigned to the input
pin and which logic is required to change (activate, enable, etc.) the setting.
Unless otherwise noted these inputs are only accepted by the transmitter if the remote/local status is
set to remote. That setting can only be made by a local user using the front panel AUI.
The external remote input circuits interface with the transmitter via the remote interface PWB and
then with opto couplers on the control/interface PWB. The opto couplers buffer and isolate the
external circuits and prevent any unwanted transients from affecting transmitter operation while
remote control is selected on the transmitter.
Table 8.1: Remote Inputs - Selection Options
Remote Input Function
RF On Same as pressing the AUI RF On button. Tells the transmitter to provide RF power if possible.
Provide an active pulse to select.
RF Off Same as pressing the AUI RF Off button. Tells the transmitter to disable RF power. Provide an
active pulse to select.
Reset Causes a system reset. Provide an active pulse to select.
Increase RF Power Increases the power level of the current mode. Send an active pulse to increase the power
slightly, or send a signal of greater duration to continue increasing power.
Decrease RF Power Decreases the power level of the current mode. Send an active pulse to decrease the power
slightly, or send a signal of greater duration to continue decreasing power.
Exciter A Select Causes a changeover to select exciter A as the active exciter. Provide an active pulse to select.
Exciter B Select Causes a changeover to select exciter B as the active exciter. Provide an active pulse to select.
Auto Changeover Enables or disables automatic exciter changeover. Provide an active pulse to toggle between
selecting automatic or manual.
Scheduler On/Off Enables or disables the automatic mode scheduler. Provide an active pulse to toggle between
selecting automatic or manual.
Max Power Lockout
Select Selects the associated power lockout limit (1 to 8) as active. Provide an active pulse to select.
Preset Select Selects the associated user-named mode as the active preset. Provide an active pulse to
select.