Digital I/O - Omega Engineering OME-A8111 Hardware 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:
Output Latch Register
Base+D
D0...D7
Base+E
Output Latch Register
Input Buffer Register
Base+6
D0...D7
Base+7
Input Buffer Register
OME-A-8111 Hardware Manual (ver.1.1, Jul/2003)
Read
D0...D7
D8...D15
Read
Read
D0...D7
D8...D15
Read
CN3
1...8
17...18
DGND
9...16
OME-A-8111
OME-A-8111
CN2
1...8
17...18
DGND
Strobe 20
9...16
TTL
DO
DGND
OME-DB-16R
16-Channel Isolated
Input Board
(Option)
TTL
DI
DGND
OME-DB-16P
16-Channel Isolated
Input Board
(Option)
19