2. On the PC running PROCOMM, set up for a direct connect to the serial port, running 9600 baud, 8 data, 1 stop bit, and no parity. Set it up for a terminal type of either TTY or ANSI-BBS. 3. On the ElanSC300 microcontroller system, boot DOS and have the following commands in the autoexec.bat file:
| SYMBOL | PARAMETER | CONDITIONS | MIN | MAX | UNIT |
| VR | continuous reverse voltage | | | 60 | V |
| IF | continuous forward current | | | 100 | mA |
| Ptot | total power dissipation | Ts90 IC | | 500 | mW |
| Tstg | storage temperature | | -65 | +150 | |
| Tj | junction temperature | | -65 | +150 | |
| | | | | |
