User's Manual

Table Of Contents
System Diagnostics and Preventive Maintenance
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to the Orion Reader COM2 port using a serial null-modem cable. This cable crosses
over the transmit and receive pins, which allows you to communicate with the Orion
Reader. The COM2 port is located inside the NEMA box.
Once you have connected the PC to the Orion Reader, you need to configure the ter-
minal emulation software.
Diagnostic COM2 Port Pin Assignments
This connector is a DB9 subminiature plug.
Starting the Terminal Emulation Software
You can use a PC and any terminal emulation software to enter the host commands to
retrieve diagnostic information. The following procedures show examples using
Hyper Terminal™, an application included with Microsoft Windows. Most terminal
emulation applications have a similar sequence for launching.
Note: In this hyperterminal selection, COM1 refers to the PC communications port.
To start the terminal emulation software
1. At the command prompt, type your terminal emulation start command, or if using
Windows Hyper Terminal, select: Programs>Accessories>Hyperterm
and press ENTER.
The application displays the Connection Description dialog box as shown in
Figure 9-2.
Table 9-2 Diagnostic Communications Connector Parameters
Pin Signal Description
1 RSD Received line signal detect (not connected)
2 RXD Receive Data
3 TXD Transmit Data
4 DTR Data Terminal Ready (not connected)
5 GND Ground
6 DSR Data Set Ready (not connected)
7 RTS Request to Send
8 CTS Clear to Send
9 RI Ring indicator (not connected)