The Dual Relay Modules (R2ML/H Series) are designed to provide flexible and rapid responses during emergency conditions
The R2ML/H Series allows independent control of two Form C contacts for a variety of normally open and normally closed applications, such as fan operation, elevator recall, door closure, and auxiliary notifications.
Each R2ML/H Series module provides independent control of two Form C contacts while using a single SLC (Signalling Line Circuit) address.
The modules feature a highly configurable programming algorithm that allows the user to create groups of devices (zoning) for simultaneous operation of multiple R2ML/H modules.
All operating parameters are stored locally in the module, so individual communication with the control panel is not required during an emergency.
The control panel broadcasts the command on the SLC loop, and the R2ML/H Series modules perform the programmed actions. Because the modules use mechanically latching relays, a separate 24 VDC power source is not required.
DCP-R2ML Features and Specifications
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Provides two independently configurable Form C contacts per address
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Up to 127 devices can be used on each SLC loop
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Yellow LED indicates a short circuit condition (R2ML-I and R2MH-I only)
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Highly flexible programming with 16 priority states plus zoning capability
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UL 864 Listed
Electrical and Physical Specifications
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Supply Voltage (S-SC): 25.3 to 39 VDC
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SCI On Resistance: 40 mΩ maximum (normal condition)
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SCI Fault Detection Threshold: 12 V (typical)
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Maximum Quantity per Loop: 127
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Dimensions: 4.2" W × 4.7" H × 1.4" D
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Mounting: 4" square electrical box
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Relative Humidity: Up to 90 percent RH, non-condensing
