Operation:
Connect a suitable AC mains power source to the rear IEC connector. Connect a RS-232
signal or a RS-422 signal to the DB-9 RS-422 input connector and select the desired
mode with the toggle switch. Turn on the AC power switch on the rear panel.
Rear Panel Connections:
Inputs (RS-422 or RS-232):
DB-9 Female. Toggle switch mode selected.
RS-422 Pin 4=D+, Pin 8=D-, Pin 5= Gnd.
RS-232 Pin 3=R, Pin 5=Gnd.
Outputs RS-422:
(15)
TWINAX connectors. Center pin= D+
Status Port RS-422 or RS-232:
DB-9 Female. Toggle switch mode selected
RS-422 Pin 4=D+R, Pin 8=D-R, Pin 5= Gnd. ; Pin 7=D+T, Pin 9=D-T
RS-232 Pin 2=T, Pin 3=R, Pin 5=Gnd.
AC INPUT
:
AC mains voltage is applied through the IEC connector.
90– 265 VAC 47-470 Hz.
Power Supply:
The distribution amplifier uses a “Universal Input” switching power supply for cool and
reliable operation. The power supply accepts any common voltage between 90 and 265
VAC or 100 to 370 Volts DC without any adjustment. A separate line filter is built into
the DA-422-15T for an additional measure of EMI suppression. The Power supply used
is UL listed and approved by several other agencies.
