Two zone expander
Two-Zone Remote Point Module

The ADEMCO 4190SN addressable V-PlexTM module is a two-zone expander which allows use of the available expansion zones provided by ADEMCO controls that support V-Plex devices.

  • Serial mode programmable
  • Left Zone - EOLR supervised, open or closed circuit sensors
  • Right Zone - unsupervised, closed circuit sensors
  • UL listed for fire and burglary installations

The 4190SN consists of two detection loops, known as the left (primary) and right (secondary) loops. The left loop can be used for:

  • Closed-circuit devices with or without EOLR supervision
  • Open-circuit devices, with EOLR supervision
  • Fast-response (10 millisecond) devices

Follow the chart below for cutting the correct jumpers and choosing the correct resistor when using the left loop. The right loop can be used for:

  • Closed-circuit devices only
  • Has no EOLR supervision
  • 400 millisecond response time  

The jumpers do not affect the operation of the right loop. The right loop cannot be used alone.


The tamper/supervision response of the 4190SN is determined by the zone response type assigned to the left loop zone. While the system is armed, tamper/supervisory faults will report as alarms if the left loop zone is assigned a burglary response type and will report as troubles if the left loop zone is assigned a non-burglary response type (i.e., fire, panic, aux). While the system is disarmed, tamper/supervisory will always report as troubles.

Part No. Description
4190SN V-Plex Module