1 Amp DPDT Relay Interface
Overview
The 1 Amp Double-Pole, Double-Throw (DPDT) Relay Interface (P/N: 995085, Part No: 635085) provides low-voltage relay outputs for general-purpose interface applications such as warning devices (strobes), air-conditioning, process control, and access control including door locks. A single relay is provided with connections for two independent sets of contacts.
The relay can be switched by any Open Collector Auxiliary output capable of switching a minimum of 20mA. Ensure that the current required by the Relay Board is within the limits of the Module, Power Supply, or other Device used to power it.
Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage | 11V to 14V DC |
| Current Consumption | 15mA per relay (at 13.8V DC input) |
| Contact Rating | 1 Amp @ 24V DC (Resistive load) |
| Physical Dimensions | Length: 48mm, Width: 38mm, Depth: 20mm (including adhesive strips) |
| Installation Environment | 0°C to 40°C, 15% to 85% Relative Humidity (non-condensing) |
Terminal Layout
| Terminal | Label | Function |
|---|---|---|
| T1 | 12V Trigger Input | Non-polarized trigger input terminals. Accepts open-collector auxiliary output or siren output from Model 3000/Access 4000 modules. |
| T2 | Relay Output Contacts | Two independent sets: Common (COM), Normally Open (NO), and Normally Closed (NC) per set. |
T2 Contact Arrangement
NC NO COM | NC NO COM
Set 1 Set 2
Kit Contents
The Double-Pole Relay Board Kit includes:
- Relay PCB sub-assembly with self-adhesive strips.
- Installation notes.
Installation
Mounting
- The Relay Interface can be mounted in a convenient location using the attached self-adhesive strips.
Wiring
- Connect one of the T1 terminals to DET+ on a Model 3000/Access 4000 Module, or the +12V output of a separate 12V Power Supply. (T1 connections are not polarity-conscious.)
- Connect the other T1 terminal to the required Auxiliary Output on the host Module.
Note: This Relay Interface has a special input circuit that also allows T1 to be connected directly to a Model 3000 / Access 4000 Siren output.
Important Notes
- If a separate Power Supply is used to power the Relay Interface, ensure a common Negative connection is provided between the Power Supply and the Module used to control the relay.
- Ensure that any Relay boards plus other devices powered from the Module or separate Power Supply do not exceed the maximum auxiliary current allowed.