Scantronic EXP-2R-MULTI | Multi-Function Wireless Transceiver | Expander & Standalone Receiver, 4 Outputs

FAQs

What are the three operating modes and when would each be used?

Hybrid expander mode connects the EXP-2R-MULTI to SSR control panels or EXP-2R expanders via radio link, ideal for adding wireless outputs to existing systems or locations where cable runs are impractical. Standalone receiver mode allows the device to learn up to 10 wireless detectors or hold-up devices, operating independently to control local outputs and sounders, perfect for outbuildings, remote areas, or simple standalone alert systems. Paired transceiver mode links two EXP-2R-MULTI units bidirectionally, where wired zone inputs at one device trigger outputs at the other and vice versa, excellent for extending detection across separate buildings or areas without cabling between locations.

How does paired transceiver mode work in practice?

In paired transceiver mode, two EXP-2R-MULTI devices are configured to communicate with each other. Wired zone inputs connected to unit A will operate relay outputs at unit B when activated, whilst wired zone inputs at unit B similarly operate outputs at unit A. This creates a wireless link for extending hardwired zones across buildings, car parks, compounds, or other areas where running cables would be costly or impractical. Both units can simultaneously monitor local zones and control remote outputs, providing flexible bidirectional extension of detection and control capabilities.

Can the standalone receiver mode replace a full control panel?

Standalone receiver mode provides independent wireless detection and output control without requiring a full intruder alarm control panel, making it suitable for simple applications like outbuilding monitoring, shed alarms, or basic perimeter protection. However, it lacks features such as user code management, detailed event logging, scheduled arming, or remote monitoring capabilities found in complete control panels. Standalone mode is ideal for supplementary protection, independent local alarms, or situations where full panel functionality isn’t required or cost-effective.

What devices can be connected to the relay outputs?

The four voltage-free relay outputs rated at 1A@30Vdc can control various devices including external sirens, strobe lights, access control equipment (door strikes, magnetic locks), gate controls, lighting circuits (via suitable contactors), or any auxiliary equipment within the relay rating. The voltage-free design allows integration with different voltage systems, whilst the tamper return input enables feedback from wired sirens or manual reset of latched outputs. Each output can be independently configured for different activation conditions and operating modes.

What is the advantage of the optional external antenna?

The built-in antenna provides adequate performance for most installations, but the optional fault-monitored external antenna extends range in challenging RF environments or when maximum coverage is required. External antennas can be positioned for optimal signal propagation, avoiding obstructions or RF interference that might affect the internal antenna. The fault-monitoring capability alerts the system if the external antenna becomes disconnected or damaged, maintaining installation integrity and ensuring reliable communication is maintained.

How is the EXP-2R-MULTI programmed?

The device features local programming using an LED display and menu keys, allowing configuration directly at the unit without requiring connection to the main control panel or computer software. This simplifies setup, particularly for standalone or paired modes where no central panel exists. Parameters including operating mode, relay configurations, detector learning, output timings, and radio settings are all accessible through the on-board interface. The intuitive menu structure guides installers through programming options appropriate to the selected operating mode.

What is the power consumption and what power supply is required?

The EXP-2R-MULTI operates on 12Vdc supply with minimal power consumption: 25mA quiescent current when display and loudspeaker are off, increasing to maximum 400mA when all features are active. This low consumption makes it suitable for battery-backed power supplies in security installations. The device includes monitored inputs tracking low battery and AC fail conditions, providing alerts before power loss affects operation. Fuse-protected auxiliary outputs are available for powering connected devices whilst maintaining circuit protection.

Is the EXP-2R-MULTI suitable for PD6662 and EN50131 compliant installations?

Yes, the EXP-2R-MULTI complies with EN50131-5-3:2017 and PD6662:2017 standards with Grade 2 security rating, making it suitable for professional intruder alarm installations requiring certificated performance. The AES128 encryption, supervised radio communication, tamper monitoring, and power supply fault detection all contribute to meeting these standards. Grade 2 is appropriate for residential and small commercial properties with low to medium security risk, ensuring the device meets insurance and regulatory requirements for professional security installations.