User`s manual

Chapter 8 231

IBASIC Controller

Interfacing to the IBASIC Controller using Serial Ports

Figure 8-3 Serial Port Pin Assignments

Serial Port 9 Configuration

Table 8-1 on page 231 and the following paragraphs describe how to

configure Serial Port 9 for communications with an external PC or

terminal. Implications of the various choices are discussed.

1. Under the To Screen menu, select More, then select

IO CONFIG.

2. The I/O CONFIGURE screen will be displayed.

3. Set the Serial Baud Rate, Parity, Data Length, Stop Length,

Rcv Pace and Xmt Pace fields to match your PC or terminal

settings. The recommended settings are shown in Table 8-1 on page

231. These settings will be retained by the Test Set. They will not

change if the PRESET key is pressed, if the Test Set receives a *RST

Common Command, or the power is turned on and off.

4. Set the Serial In field to Inst. This routes Serial Port 9 to the

IBASIC Command Line field. Characters typed on the external PC or

terminal will now appear in the IBASIC Command Line.

5. Set the IBASIC Echo field to ON. This will cause IBASIC character

output from commands (such as LIST, PRINT or DISPLAY) or error

messages to echo characters to Serial Port 9 (the characters will in

turn show up on the external PC or terminal screen). This will allow

program listings and syntax error messages to be seen on the

external PC or terminal.

Table 8-1 Serial Port Pin Assignment

Pin Description

1 CD - Carrier Detect

2 RD - Receive Data

3 TD - Transmit Data

4 DTR - Data Terminal Ready

5 Ground

6 DSR - Data Set Ready

7RTS - Request to Send

8CTS - Clear to Send

9RI - Ring Indicator