Q-Mux Node


The Q-Mux is a low cost multiplex system.  Two wires are used to power the IDM sensor modules (i.e.. Q-1C, Q-1A, Q-1CL, Q-1R, Q-I/O, Q-EOL, Q-SNP-RLY and Q-SNP-EOL) to send commands to the modules and receive their data.  Commands from the Q-Mux Node to the ID modules take the form of modulating Buss voltages between 0 and 10v.  The data returned from the modules is increased Buss current.

Each Q-Mux node can control up to 99 mix/matched IDM modules.  Up to 32 Q-Mux Nodes may be used in one system.  Total range of the Q-Mux system is 5,000 feet from the System 3505 PRISM LX to the last Q-Mux Node and 5,000 feet from the Q-Mux Node to the last ID module.  ID modules may be set to any address from one to 99.  ID addresses are stored on an internal EEPROM and can be changed by the Q-Mux Programmer (P/N 425184-0002).

The Q-Mux Option (P/N 010001-0094) or Q-Mux option w/32 Line Driver Rack P/N 010001-0099 and a minimum of one Q-Mux node (P/N 425190-0001) are required for the System 3505 PRISM LX.

Ethernet connectivity is available utilizing the Alarm-LAN option and VersAlarm controller to monitor the TCU-8 Nodes and IDM devices.  The SYSTEM 3505 PRISM LX must first be equipped with AlarmLan (P/N 020001-0121) and the desired number of VersAlarm, Q-MUX and IDM devices.  Using VersAlarm, the Prism LX can monitor 999 VersAlarm units and each unit can monitor 32 Nodes for a total of over three million IDM monitor or sensor points.

All Q-MUX Products are ETL Listed and CSFM Approved

The Q-MUX NODE modules include:

Q-MUX TCU-8 NODE: The Q-Mux Node is the central polling controller.  It sends commands to and receives data from the ID modules and, in turn, sends data to and receives commands from the SYSTEM TCU-8 RevC Top3505/3505 PRISM LX.  Up to 32 Q-Mux Nodes may be installed in one system.  Total wire run from the SYSTEMS 3505/3505 PRISM LX to the last Q-Mux Node is 5,000 ft. with 24 AWG.  The Q-Mux node is shipped pre-programmed to address #1. Nodes address is set using the Q-Mux Node Test & Utility Software P/N 010001-0109.

NOTE: 12-volt 300Ma (uses about 100Ma, needs 300Ma to detect short on IDM buss) power source is required.  Dry contact input for AC, DC and Tamper included.



Octal RS_485 RevB TopOctal RS-485 CARD WITH RX ISOLATION: This optional SYSTEM 3505 Config card replaces the single RS-485 communications from the SYSTEM 3505/3505 PRISM LX COM ports 1, 2 or 3 to the Q-MUX Node(s) to eight independent and lightning protected channels.  Thus an open or short on any single channel will not interfere with the operation of any other channel.  The user can assign any Q-MUX Node to operate on any of the 8 channels and divide up to 32 Nodes to operate over any selected channel.

NOTES: The Octal Card can be used in lieu of the 32 Line Driver Rack and RS-485 Line Driver Cards when 8 or less isolated communication lines are needed.  This also eliminates the need to order Style 3 RS-485 line driver cards that would normally be installed in the 32 line driver rack. The Q-MUX option available at additional cost.


The Q-MUX Node can be set to any address from 1-32. The address is stored internally in an EEPROM. It is shipped pre-programmed to address #1. The System 3505 Prism LX™ is used to field program the Q-MUX Node to a different address (using the 24 SET menu). The field should reserve address #1 for use on the last Q-MUX node. The Q-MUX Node requires 12 VDC at 80 mA to operate