View The Communication Settings; Power Down - DEI PCX-7420 B Operation Manual



View the Communication Settings

1. Rotate the encoder knob until the RS-
232 / USB communication information
is displayed.
2. RS-232 and USB use the same
settings. The parameters are 115200
baud, 8 data bits, no parity, 1 stop bit,
and no flow control. The end-of-data
packet character is the ASCII new line character ('/n').
3. RS-232 is selected by default; there cannot be a USB cable connected to a
computer for RS-232 to be enabled.
4. If the USB port is connected to a computer, RS-232 is disabled automatically.
5. The USB driver can be found at
6. During computer communication to the PCX-7420 B, the screen will change and
report the Baud rate, the number of data bits and stop bits, and the parity.


Power Down

WARNING
Risk of fatal electric shock. Wait at least 10 minutes after
powering down the PCX-7420 B before handling the output
cable or laser diode.
1. Disable the unit by pressing the ENABLE BUTTON on the front panel or by
sending the computer command "OUTPUT:DISABLE".
2. Turn the keyswitch OFF.
3. Turn the unit OFF at the power switch on the rear of the system.
For more information: 970.493.1901 or
Document #7650-0037 Rev A2. © Copyright 2019 Directed Energy, Inc. All rights reserved.
https://directedenergy.com
Page 18 of 28
sales@directedenergy.com
RS232 / USB
-----------
115200, 8, 1, N
End line = char 10