Filter
Top Products
Table 3.1
Control Functions
Control Location Function
Power switch (with lamp) ON/OFF Rear Panel Turns AC power ON or OFF
110/220 VAC Selector Rear Panel Selects main power source: 115 or 230 VAC
Four manual DISABLE push-button switches Front Panel Manually deactivates sub-channels
connected to defective terminals or modems.
A depressed push button disables the
sub-channel
Table 3.2
Indicator Functions
Indicator Functions
Power Green LED is ON when power is present and the DC power
supply is O.K.
Main Yellow LED flickers according to main channel XMT data
Sub-channels Activity 1-4 Four yellow LEDs flicker according to sub-channels XMT data
Automatic Disable 1-4 Four red LEDs light when the corresponding sub-channel has
been automatically disabled (due to time-out)
3.3 OPERATING PROCEDURE
3.3.1 Power Turn On
1) Make sure the power switch is turned to OFF.Set the 110/220 selector located on the rear
panel to the main voltage used in your country. The white arrow should point to the correct
main voltage.
2) Apply AC power by connecting the AC cord to the AC connector on the rear panel of the
RSD-20 and then plug it into the AC source.
3) Turn the power switch located on the rear panel to ON. The power switch should light up,
indicating that the main power is fed to the RSD-20 while the power LED (on the front panel)
should light indicating that the internal power supply is O.K.
3.3.2 Operation
The RSD-20 operates unattended, unless it is required to manually disable one or more
sub-channels.
3.3.3 Power Turn Off
To turn off the AC power to the RSD-20, simply switch off the power switch.
RSD-20 OPERATOR'S MANUAL OPERATION
3.2