User Guide

Intercom Interface Crestron C2N-IIF
Essex Keypad with Signal Names
Matrix Mode
The matrix mode is designed for keypads with more than six buttons, to a
maximum of 16 buttons (as shown in the following diagram). In this
mode four of the digital inputs and four of the outputs are reserved to
enable 4x4 matrix switching. This leaves two digital inputs and four
switched outputs available for other purposes.
Four-by-Four Keypad with Button Locations
Discrete Mode
Discrete mode configures the unit for operation with any non-Essex door
station. Here all six logic-level inputs can be connected as required, e.g.,
to buttons on the panel or to logic-level devices, while all eight switched
outputs are available for connection to contact closure devices.
32 • Intercom Interface: C2N-IIF Operations & Installation Guide - DOC. 6235