TTL Output Module
Cat. No. 1771OG
Installation Instructions
3
1.
Remove the side cover from the module by removing the screw at
each of the four corners.
2.
Set the switches as needed for your application.
1
2
O
N
O
F
F
When OFF, LOW = TRUE
logic selected.
When OFF, HIGH = TRUE
indicator does not illuminate.
When ON, HIGH = TRUE
indicator illuminates
continuously.
When ON, HIGH = TRUE
logic selected.
TTL Output Module
(cover removed)
10446-I
TTL Logic Level Selection Switch Assembly
3.
Reinstall the cover and secure with the four screws.
Keying Your I/O Chassis
Use the plastic keying bands, shipped with each I/O chassis, to key the I/O
slots to accept only this type of module.
The module circuit board is slotted in two places on the rear edge. The
position of the keying bands on the backplane connector must correspond
to these slots to allow insertion of the module. You can key any connector
in an I/O chassis to receive this module except for the left-most connector
reserved for adapter or processor modules. Place the keying bands between
the following numbers labeled on the upper backplane connector:
Between 6 and 8
Between 10 and 12
You can change the position of these keys if system redesign and rewiring
makes insertion of a different module necessary.