Extron electronic 3000B - Manual (Page 90)

Exatron 3000B
www.exatron.com 5-11 Chapter 5 Diagnostics
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INTERFACE CHECK: RS-232 Check (Control Panel Check)
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For external Handler RS-232 port, this diagnostic tests port 28, 29, 2A, 2B, 2C, 2D, 2E, located on
PCB #3000-055, PAL ROB 1, U11, U15.
For internal Front Panel RS-232 port, this diagnostic tests port F8, F9, FA, FB, FC, FD, FE, located on
PCB #5000-A89, U1, UART.
Connect a remote terminal to the Handler's RS-232 port.
NOTE: The handler may be set up to use any number of baud rates and stop/parity/bits. The standard
factory settings are:
RAM ADDRESS: 009A 0C 9600 BAUD
RAM ADDRESS: 009B 03 1 STOP, 8 BITS, NO PARITY
TO ENTER THIS CHECK:
Handler displays DIAGNOSTICS
Press the [3] key.
Handler displays INTERFACE CHECK
Press the [1] key.
Handler displays RS-232 CHECK
Press each of the handler terminal’s keys/buttons (save [Enter] for last.) As you do, the correct ASCII
character, 0-F, should appear on the dumb terminal.
Send any ASCII character to the handler. The character should appear on the handler's 16 digit
controller display. Verify that communications to/from the handler's terminal and the PC are clear.
NOTE: Characters will be added to the existing display readout, which will then scroll as more characters
are received.
Press the [Enter] button to EXIT this diagnostic check.