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PREPARATION FOR USE
Table 2-1.
User-Furnished Components (continued)
Item
No.
Item
Description
8
Connector See Parallel Connector cable
9
10
(mates
details in Table 2-2.
with J1)
Line Driver
SN7403
SN7400
SN7408
SN7409
Line
Terminators
Type
I, OC
I
NI
NI, OC
Current
16
mA
16
mA
16
mA
16
mA
Intel iSBC 901 Divider or iSBC 902
Pull-Up:
ISSC 901
ISSC 902
o +5V
I
~
220
0--1
~
Function
Provide compatible cables
for parallel I/O signal
interface to the 8255A PPI
device.
Interface parallel I/O
ports CA and CC with Intel
8255A PPI device.
Requires
two line drivers for each
8-bit parallel output port.
Interface parallel I/O
ports CA and CC with IntI
8255A PPI device.
Requires
two iSBC 901 Dividers or
two iSBC 902 Pull-Ups for
each 8-bit parallel input
port.
-----------------.-_._----
-
--
•.•....
-. --
---
--------------
11
iSBC 300A
RAM
Multimodule Board
12 iSBC 304
RAM
Mu1timodule Board
32k bytes of
RAM
expansion capability
128k bytes of
RAM
expansion capability
2-5
Provides the capability to
expand the on-board
RAM
to
64k bytes (86/14 only).
Provides the capability to
expand the on-board
RAM
to
256k bytes (86/30 only).
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