G1 I/O family
The PB4R output mounting rack holds four G1 digital output modules (outputs only) and features isolation between channels.
This rack is ideal for applications that require barrier strips on both the field and logic sides.
The rack is compatible with both positive-true logic and negative-true logic computer I/O ports. It can be used with 5 V, 15 V, and 24V logic and is often used to interface different families of logic. For example, 24-volt positive-true logic from a programmable controller can be connected to 5-volt negative-true PC logic using this mounting rack.
