
CBX800 INSTALLATION MANUAL
26
OTHER I/O
Two further input signals and one output signal, are available on the CBX800 for readers that support them.
These further input/output options are:
two optocoupled polarity insensitive inputs (Input 3 and input 4)
one optocoupled polarity insensitive output (Output 3)
The connections are indicated in the following diagram:
Pinout
Function
O3A
Output 3A (polarity insensitive)
O3B
Output 3B (polarity insensitive)
+V
Power Source – Other I/O
I3A
Input 3A (polarity insensitive)
I4A
Input 4A (polarity insensitive)
-V
Power Reference – Other I/O
I34B
Input 3B and 4B (common) (polarity insensitive)
I34B
Input 3B and 4B (common) (polarity insensitive)