PQR
Series Model D52
Page 11
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V2.1
Connecting to the PQR D52
USB:
The USB port on the back of the PQR D52 can be directly connected to the
USB port on your computer. The PQR D52 will register on the USB port
as an additional communications port (COM X)
The USB driver for this port is a standard part of Windows ™ XP, Vista and Seven operating
systems. The driver is also available from the help desk at www.powertronics.com
Connect to the USB port using the USB A/B cable provided with the unit.
RS232 Port:
Some computers are equipped with an RS232 port and the PQR D52 is
enabled for communications with this port as well. (Note, only one port
on the PQR D52 can be utilized at a time).
The serial port connector on the back of the PQR D52 is a 9 pin DB style RS232. The pinout is
as follows:
Pin 2 Receive Data
Pin 3 Transmit Data
Pin 5 Ground
A Null modem cable (provided) must be used to establish a connection between this port and a
PC. This type of cable connects the Transmit Data pin on the PC to the Receive Data pin on the
PQR D52, and the Transmit Data pin on the PQR D52 to the Receive Data pin on the PC. It also
connects the Ground pins together.
Connect to the RS232 port using the Null modem cable provided with the unit.
The PQR D52 is configured to operate at 19,200 baud, with 8 data bits, 1 stop bit, and no parity
checking. Select Xon/Xoff Communications protocol.
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