How to wire Ericsson routers with Responder to Responder (R2R)

This article explains how to wire Ericsson routers for Responder to Responder (R2R) to know that a potential collision with another responding vehicle is possible.

The following components must be installed in your vehicle for the R2R safety service:

• 1 x 3-Conductor Cable (30-ft)
• 1 x Ethernet to M12 Splitter Box
• 2 x Cat-6 Ethernet Cable (10-ft)
• 2 x R2R LED Indicator
• 2 x Mounting hardware for LED Indicator

3-Conductor Cable (30-ft)

This cable has three copper conductors to provide +12V power, ground, and the LED "trigger" from the Ericsson router. One end of this cable terminates with a male M12 connector that screws into the Splitter Box.

Conductor Cable	Splitter Box

The splitter box has a female M12 connector on one end that screws into the 3-Conductor Cable, and 2 x RJ45 ports for connecting to Ethernet cables. There are two mounting holes for screws, if needed.

The splitter dimensions (L x W x H) are 2.87" including the screw holes x 1.53" x 0.98" (M12 connector adds 0.55").

Cat-6 Ethernet Cable

Each cable connects to one port on the Splitter Box and to one of the R2R LED indicators.

R2R LED Indicator

A molded, hard plastic rectangular box containing 3 LEDs that illuminate when it receives the trigger signal from the Ericsson router. A standard 1/4-20 threaded screw hole in the back for secure mounting. Mounting hardware is included.

The Indicator dimensions (H x W x D) are 2.28" x 1.33" x 0.95"

Wiring the R2R System to an Ericsson Router

There are two options for vehicles that use the R2R safety service. In general, it depends on whether the router is connecting via the 4-port power cable or the GPIO extensibility cable.

Option A: Use the BLUE wire on the 4-pin square power cable

Option B: Use any one of the available wires on the GPIO cable (cable varies by router model type)

The Ericsson router sends an output signal to trigger the LEDs to illuminate when Safety Cloud detects a possible collision with another responding emergency vehicle.

The HAAS Alert order includes a 3-conductor cable with red, black, and white conductors inside. This cable provides +12V power, ground, and the 'trigger' to the LEDs. It is recommended to use a 2-amp fuse.

Connect the Ericsson cable to the 3-Conductor Cable as follows:

OPTION A:

1. Connect BOTH the red and white conductors from the 3-Conductor Cable to the vehicle's +12V constant battery or ignition power
2. Connect the black conductor to the blue wire from the Ericsson 4-pin power cord

OPTION B:

1. Connect the red conductor to the vehicle's +12V constant battery or ignition power
2. Connect the black conductor to the vehicle ground
3. Connect the white conductor to one of the GPIO1 - GPIO4 conductors connected to the Ericsson router

Option A or Option B's other end of the 3-Conductor Cable with the M12 connector should be connected to the Splitter Box referenced above.

Other Ericsson Router Guides

• IBR1700
• IBR900 / IBR600
• R920
• R980
• IBR1100

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