The 4208EX is an eight-zone expander that allows the use of available expansion zones on Honeywell VISTA controls that support V-Plex® polling loop devices. This V-Plex Expander is ULC Listed for commercial burglary and fire monitoring applications.


Can be used on controls that support V-Plex

Can be optionally powered from an external DC power supply to reduce the amount of current draw from the polling loop

Uniquely identified eight EOLR supervised zones

Each zone is identified by a unique serial number, which is assigned via on-board DIP switches

Detects faults on all zones within 400ms of occurence

Loops A & B can be programmed for fast (10ms) response

Provides cover tamper protection, which may be enabled or disabled via onboard DIP switches