The 4-Channel Relay Module is a full-height module that provides four relay outputs. Any number of 4-Channel Relay Modules can be placed in any of the slots to the right of the Rack Interface Module. Each output of the 4-Channel Relay Module can be independently programmed to perform needed voting logic. Each relay utilized on the 4-Channel Relay Module includes “Alarm Drive Logic”. The Alarm Drive Logic is programmed using AND and OR logic, and can utilize alarming inputs (alerts and dangers) from any monitor channel or any combination of monitor channels in the rack. This Alarm Drive Logic programming uses the 3500 Rack Configuration Software to meet the specific needs of the application. Note:  Triple Modular Redundant (TMR) applications require the use of the 3500/34 TMR Relay Module.  Consult Bently Nevada Specification and Ordering Information part number 141534-01 for details.
Specifications 
Inputs Power 
Consumption: 6 watts typical. OK LED: 
TX/RX LED: CH ALARM 
LED: Relays 
Type: Environmental 
Sealing Arc 
Suppressor Contact Life 
Operation 
Illuminated when module is 
functioning properly. 
Transmit and Receive. Flashes 
to indicate proper 
communications between this 
module and other modules 
within the rack. 
Illuminated when the Relay 
Channel is in an alarm state. 
Two single-pole, double-throw 
(SPDT) relays connected in a 
double-pole, double-throw 
(DPDT) configuration.