RM-1K prot.R3, RM-4K prot.R3

RM-1K prot.R3 and RM-4K prot.R3 addressable relay modules control actuators from a part of the fire alarm system. Functionally, addressable relay modules are remotely operated supply voltage outputs. They are designed to operate as a part of addressable system controlled by the Rubezh-2OP prot.R3 receiving and control alarm panel.
Supply voltage 10,5 to 28,5 V
RM-K current consumption:
from addressable communication line, no more than
from power supply source (without the load connected to outputs), no more than

180 A
5 mA
Parameters of the relay outputs:
current commuted by each relay output, no more than
current commuted by the whole module (net current for all outputs at the same time), no more than

Circuit failure test current:
in switched off output condition, no more than
in switched on output condition, no more than

2 m
10 m to 210m
Module overall dimensions, no more than
1257837 mm
Weight, no more than 150 g
Operating temperature range -25 to +55
Average service life, at least 10 years

Addressable relay modules are programmable devices. It is configured by the user via the FireSec Administrator software.

The following equipment and units can be connected to the addressable relay module:

  • RM-1 one output OUTPUT1;
  • RM-4 four outputs OUTPUT1 - OUTPUT4; 

The following equipment and units can be connected to the addressable relay module:

  • illuminated information panels (OPOP 1-8 or similar);
  • sound alarms (OPOP 2-35 or similar);
  • light and sound alarms (OPOP 124-7 or similar).

RM-K module controls the circuit from each relay to actuators for interruption and short circuit in switched-on and switched-off condition of the relay.

Addressable relay module receives commands to control built-in relays via two-wire unipolar addressable communication line.

Relay module has LED indication of communication with control and indicating device and indication of the activated state of the relay.

Relay module RM-K prot. R3 may be installed in DIN rail using special securing bar (not in the scope of supply; may be provided by separate order).

Relay module is equipped with load connection devices (LCD) the number of which corresponds to the number of outputs to control the line for interruption and short circuit. LCD is a circuit board with installed LEDs, input terminal for relay connection to the line and output terminal for connection to load (actuator).

For interruption and short circuit control of the line LCD should be connected directly to the load of relay output (to the actuator) according to connection diagram to Output4 shown in the picture. If the integrity of the load circuit needs to be controlled, then connection is according to the scheme connected to Output3 on the diagram. Diodes can be used for circuit integrity control instead of LCD. Their connection is shown on connection diagram to Output2. Several devices, i.e. OPOP 1-8 or OPOP 1-8M indication panels may also be connected to the same output. In this case, the indication panels shall be connected to the line in parallel, and one diode for control current shall be mounted at the end of the line. Installation diagram is shown on a scheme in case of connection to Output1.

To control Interruption state in ON output condition it is necessary to ensure current flow through the load of at least 10 mA. If the LCD's current consumption is less than 10 mA, resistor is connected in parallel to increase the current consumption. However, the majority of devices connected to the outputs of RM-K prot.R3 module have a current consumption of more than 10 mA (panel, sirens etc.), so the installation of such resistor is not required.

Within the system each relay of the RM-K prot. R3 addressable relay module is a stand-alone logical device, i.e. each relay is defined as a stand-alone fully-featured device and takes one address in the system. Thus, the RM-4K prot.R3relay module contains four separate logical units and occupies four addresses (one address for each output). When the module is configured the address is assigned to output No.1 only, all the other outputs (if any) are assigned addresses automatically in ascending order, starting from the preset address. 

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