Computer Hardware User Manual

2.5 Digital I/O
The OME-A-8111 provides 16 digital input channels and 16 digital output
channels. All levels are TTL compatible. The connections diagram and block
diagram are given below:
Read
Read
D0...D7
Base+D
Base+E
D0...D7
D8...D15
1...8
9...16
Output Latch Register
Output Latch Register
CN3
17...18
DGND
DGND
DO
TTL
16-Channel Isolated
Input Board
(Option)
OME-A-8111
Read
D0...D7
Base+6
Base+7
D0...D7
D8...D15
1...8
9...16
Input Buffer Register
Input Buffer Register
CN2
17...18
DGND
OME-DB-16P
DGND
DI
TTL
OME-A-8111
OME-DB-16
R
Strobe 20
Rea
d
16-Channel Isolated
Input Board
(Option)
OME-A-8111 Hardware Manual (ver.1.1, Jul/2003) 19