C-1
A P P E N D I X C
Using Serial Data
Commands
This chapter contains information you need if you are writing your own
software for a computer or data acquisition system. Information includes:
Pin connectors
Baud rate
Parity
Command definitions and syntax.
Examples, as well as input and troubleshooting directions are also
provided.
Pin Co n n e ctors
The Model 3321 has a single 9-pin, D-subminiature connector port on the
back panel labeled SERIAL PORT (See Figure 3-3 and Figure C-1). This
communication port is configured at the factory to work with RS-232 type
devices. Table C-1 provides the signal connections.
Figure C-1
SERIAL PORT Pin Designations