Communications And Remote Operation; Data Terminal/Communication Equipment (Dte Dce); Modes, Baud Rate And Serial Communication - Teledyne T200 User Manual

COMMUNICATIONS AND REMOTE OPERATION

3.
This instrument's rear panel connections include an Ethernet port, a USB port (option) and
two serial communications ports labeled RS232, which is the COM1 port in the software
menu, and COM2 (refer to Figure 2-2). These ports allow the ability to communicate with,
issue commands to, and receive data from the analyzer through an external computer
system or terminal. Connection instructions were provided in Section 2.3.1.8.
Configuration information was provided in Section 2.5.10.
This section provides pertinent information regarding communication equipment, the
communications ports, and communications protocol. Data acquisition is set up through
the Datalogger (Section 2.5.1).
DATA TERMINAL/COMMUNICATION EQUIPMENT
RS-232 was developed for allowing communications between data terminal equipment
(DTE) and data communication equipment (DCE). Basic terminals always fall into the
DTE category whereas modems are always considered DCE devices. The difference
between the two is the pin assignment of the Data Receive and Data Transmit functions.
• DTE devices receive data on pin 2 and transmit data on pin 3.
• DCE devices receive data on pin 3 and transmit data on pin 2.
To allow the analyzer to be used with terminals (DTE), modems (DCE) and computers
(which can be either), a switch mounted below the serial ports on the rear panel, labeled
DCE DTE (Figure 2-2), allows the user to set the RS-232 configuration for one of these
two data devices. This switch exchanges the Receive and Transmit lines on RS-232
emulating a cross-over or null-modem cable. The switch has no effect on COM2.

MODES, BAUD RATE AND SERIAL COMMUNICATION

Referring to Table 2-17, use the SETUP>COMM menu to configure COM1 (labeled
RS232 on instrument rear panel) and/or COM2 (labeled COM2 on instrument rear panel)
for communication modes, baud rate and serial communications. If using a USB option
communication connection, setup requires that the instrument's baud rate and personal
computer baud rate match.
083730200A DCN7962 Teledyne API T200 NO/NO /NO Analyzer with NumaView™ Software
2 x
(DTE DCE)
83