Portmaster

Portmaster

@8F70.ADF - IBM RIC Portmaster Adapter/A
C8F70.ADF - Init file for @8F70.ADF

m39h8070.exe Option disk for ARTIC Portmaster (53F2601, -04, -07).
189-169 Realtime Interface Co-Processor Portmaster & Related Features

Portmaster FRU 53F2603

CON1 30 pin socket
CON2,3 60 pin socket
U4 57F0930ESD
U11 72 pin SIMM socket
U19 57F2709 Bios Odd
U20 57F2710 Bios Even

U22 80C186-12
U25 33F8801ESD
U31,32 Zilog Z0803606VSC Z-C10
U33,35 SCN26562C4A52
Y1 25.0 MHz osc
Y2 14.7456 MHz osc

My Portmaster had a 2MB SIMM, 512K-36, P/N 68X6172, FRU 90X8625 installed. It was also marked "Samsung KMM536512BG-8".

8 Port RS232 Interface Board P/N 53F2610 FRU 57F3118

K0 30 pin header
K1,2 60 pin header
P1 Dsub-78

U1,2 SCN26562C4A52
U37 33F5251 (Bios for card?)
1

Shocking news, but the maker and model of the Dsub-78 is ITT, 2DD100SBR-1