RAM-COMM_Expansion_Board.pdf | | RAM-COMM Expansion Board 1
Interface Circuitry 1
Input/Output Handling 1
Expansion Board Schematic 2
RAM - COMM Expansion Board
The expansion hardware provides additional memory and
cow~~~ication capabilities for the AT&T UNIX PC. The
expansion hardware!s EIA ports make it possible for the PC
to communicate with another terminal or computer.
Additional memory and EIA capabilities are available
separately or in combination, as shown in the following list
of expansion hardware options:
0 O.SMB RAM Expansion Board (no EIA ports)
0 2.0MB RAM Expansion Board (no EIA ports)
0 O.SMB EIA/RAM Combo Board (two EIA ports)
0 1.0MB EIA/RAM Combo Board (two EIA ports)
0 1.5MB EIA/RAM Combo Board (two EIA ports)
0 Dual EIA Port Board (no RAM, two EIA ports)
The expansion hardware includes:
o An interface connection PI and associated
circuitry
o RAM memory
o |