The SBRC Array Control Electronics (ACE2) drive electronics for the detector array contains a timing generator with EEPROM resident firmware. It should not be necessary to down-load this code from the VAX. However, if circumstances conspire to make this necessary, first load the Logic Chip Array code by typing:
CASPIR/LCA
When this completes (after a couple of minutes) load the ACE2 timing program by typing:
CASPIR/TIMING=IR_CASPIR:SBRC256
This loads the timing program and two data banks through an RS-232 line and takes several minutes to complete.
If you have problems try pressing the reset button on the front panel of the ACE2 unit, wait until the green light starts flashing again, and repeat the above procedure.