Here's the list of the Devices, and where to find them...

DF820: DF833 00 A2 F28F9 'STDO:SCRN:' 00
DF833: DF846 01 A1 F1664 'STDI:KYBD:' 00
DF846: DF853 02 D3 EAD5B 'COM' 00
DF853: DF865 03 A2 EA7A7 'STDL:PRN:' 00
DF865: DF872 04 D7 E99D2 'CAS:' 00
DF872: DF884 06 C3 F0000 'S1:S2:S3' 00
DF884: DF893 05 83 E493E 'E:F:G:' 00
DF893: DF89C 09 00 EF2EE 00
DF89C: DF8A9 07 00 EB956 'X:Y:' 00
DF8A9: FFFFF 08 00 ED183 'SYSTM:' 00