Serial Communication Converters & Adapters Instruction Manual
21
PDA7232 TRIDENT RS-232 SERIAL ADAPTER
P R E C I S I O N D I G I T A L
Description
The PDA7232 converts the serial output of the PD765 Trident meter to
an unbalanced, full-duplex RS-232 signal.
The RS-232 port has a female DB9 connector with pins 2 (RX output),
3 (TX input), and 5 (Signal Ground). Pins 7 (RTS) and 8 (CTS) are tied
together, and pins 1 (CD), 4 (DTR), and 6 (DSR) are tied together. The
adapter is powered by the PD765 Trident meter.
Baud rates are adjustable and handled by the PD765 (see the Trident
Instruction Manual for more details).
The PDA7232 has three diagnostic LEDs: a Power (P) LED to show
when the adapter is powered properly, a Transmit Data (TX) LED to
show when the adapter is sending data out from the PC side, and a
Receive Data (RX) LED to show when the adapter is receiving data
from the Trident PD765 meter.
