Specifications

Figure E-20. The Printer Adapter Test
Serial Communication Adapter Test
This test requires a special RS-232 Turn-Around Connector
plugged into the port. It must be jumpered as follows:
TXD & RXD (2 & 3) shorted
RTS &. CTS (4 & 5) shorted
DSR DTR (6 & 20) shorted
This test is programmed to read the following data: 9600 baud
rate, odd parity, 2 stop-hits, and 8-bit data. This test first
performs a reset function to check for all possible errors. Then,
the test performs a send function, followed by a receive
function.
E-52
Advanced ROM Diagnostics