Cameron NUFLO 1141C, User Manual

Page: 48 / 120

Scanner 1141 Hardware User Manual
48
Open Collector without “Bounce”
This mode provides a generic pulse input
that is compatible with a variety of pulse-
producing devices and other end devices. A
suitable end device is one that provides a
bounce-free solid-state output stage, such as
an open collector transistor or open-drain
MOSFET.
Figure 3.17—DIP switch settings and wiring diagram
for an open collector output (without bounce)
Dry Contact with “Bounce”
In this mode, the pulse input is connected to
any device that provides a passive contact
closure, such as a reed relay or microswitch.
Excitation is provided by the Scanner 1141.
Debouncing circuitry limits the input
frequency to 15 Hz maximum.
Figure 3.18—DIP switch settings and wiring diagram
for a dry contact output (without bounce)