Hyfire HFW-CEM-02 Wireless Conventional System Expander Module

General Description

The wireless conventional system expander module is designed to integrate a wireless sub-system into a conventional fire security installation. It connects directly to the conventional control panel's zone line and acts as part of it. This module enables wireless sounders to be silenced, controlled via the control panel's sounder output line.

Note: The latest release of the wireless system configuration software is available from the manufacturer’s website.

Technical Specifications

* Check latest version of document TDS-SGCWE for further data, obtainable from your supplier.

** Power source type ES1, PS2

What to Check Before Installation

• Ensure installation complies with national and/or international codes of practice and standards.
• Verify compatibility with the conventional control panel, checking for suitable power supply output and sounder output. Consult control panel documentation or supplier for details.

Device Positioning for Radio Communication Performance and Stability

For optimal radio communication with wireless child devices:

• Avoid installing the module near equipment using large electrical currents, large metal objects, structures, metal ceiling structures, fluorescent lighting fixings, computers, or their cabling.
• Maintain a minimum distance of 2 meters between other wireless translators or modules, and between all installed radio devices.
• Install the expander at a height of at least 2 - 2.5 meters from the floor.
• Ensure the expander is installed perfectly flat and straight on the wall, with antennas perpendicular and parallel to the floor as appropriate.
• Environmental parameters (temperature, humidity) must be within specified ranges.
• After installation, confirm that child devices receive a good, strong signal.
• Use the “Wirelex-fire” software for configuration and administration.

Placement and Fixing

The module's enclosure features four 20 mm breakable 'knock-out' entry holes for cable glands. Follow these steps for placement and fixing:

1. Select a suitable location for the device's box.
2. Prepare the cable openings on the box by removing the knock-out sections.
3. Securely fix the box to the wall using adequate screws.
4. Fit the cable gland(s) into the opened entry holes, ensuring the gland's IP rating meets or exceeds the expander module's IP rating.
5. Feed cables into the box, ensuring sufficient length for secure connection.

Diagram Description: Picture 2 shows wall fixing screw holes and their distances. Picture 3 illustrates breakable holes for cable entry.

Device Wiring - Power Supply

The expander module can be powered:

• Directly by the control panel.
• From an external power source.
• From an external power source with a power backup unit.

Use the provided wiring scheme for power supply connection. When using an external power source with a backup unit, the 'MAIN MONITORING' and 'BACKUP MONITORING' terminals are used to supervise these power supplies.

Diagram Description: Picture 5 shows the power supply connection scheme. Picture 6 & 7 show example power supply unit schemes. Picture 8 illustrates power supply monitoring lines wiring. Picture 9 indicates that 'POWER SUPPLY -' and 'POWER SUPPLY +' wires must pass into the supplied ferrite ring.

Important Note: If a fault occurs on the wireless sub-system, the remaining conventional zone after the expander may be isolated unless each detector is equipped with a Schottky diode. Refer to applicable codes and control panel documentation.

Device Wiring - Conventional Zone Line

Two wiring schemes are available depending on the expander module's position on the zone line:

• Expander at the beginning or middle of the zone line: The zone line EOL resistor must be fitted externally.
• Expander at the end of the zone line: The zone line EOL resistor must be fitted to the device’s terminals internally.

Diagram Description: Picture 10 shows conventional line wiring with the EOL resistor outside the device. Picture 11 shows conventional line wiring with the EOL resistor inside the device.

Important Note: The zone alarm End-of-Line (EOL) resistor must ALWAYS be installed on the expander. Refer to control panel literature for its value.

Diagram Description: Picture 14 shows zone alarm EOL installation terminal blocks on the expander device.

Device Wiring - Control Panel Sounder Output Line

Wireless sounders are controlled similarly to conventional sounders via the expander module, responding to voltage levels applied by the control panel to the sounder line terminals.

Two wiring schemes are available depending on the expander module's position on the sounder line:

• Expander at the beginning or middle of the sounder line: The sounder line EOL resistor must be fitted externally.
• Expander at the end of the sounder line: The sounder line EOL resistor must be fitted to the device’s terminals internally.

Diagram Description: Picture 12 shows sounder line wiring with the EOL resistor outside the device. Picture 13 shows sounder line wiring with the EOL resistor inside the device.

Important Note: If a fault occurs on the wireless sub-system, the remaining sounders line after the expander may be isolated unless each sounder is equipped with a Schottky diode. Refer to applicable codes and control panel documentation.

Checking the Positioning of the Electrical Bridges

For proper function, two electrical bridges (jumpers) must be fitted on the expander module's PCB as illustrated.

Diagram Description: Picture 15 shows the correct positioning of electrical bridges on the PCB.

Visual LED Indicator

The module features a three-colour LED (red, green, amber) on its internal PCB, visible through a cover slit, indicating power supply conditions:

Programming the Wireless Sub-System

The wireless sub-system is created and programmed using the “Wirelex Fire” software installed on a personal computer, connected via an RS232 serial port to the expander module.

Testing the Wireless Conventional System Expander Module

Ensure the fire security system is wired, programmed, and armed. Trigger an alarm on the wireless sub-system; the conventional control panel should then enter an alarm state. Reset the entire system from the control panel after testing.

Sealing the Device with its Cover

After testing, install the device’s cover and secure it with the provided screws.

Warnings and Limitations

• Devices use high-quality components resistant to environmental deterioration. However, replacement is advisable after 10 years of continuous operation to minimize performance reduction.
• Ensure the device is used only with compatible control panels.
• Detection systems require regular checking, servicing, and maintenance for correct operation.
• Smoke sensors may respond differently to various smoke particles; seek application advice for special risks. Sensors may not respond correctly if barriers exist or if affected by special environmental conditions.
• Refer to and follow national codes of practice and internationally recognized fire engineering standards. Conduct and periodically update appropriate risk assessments.

Warranty

All devices are supplied with a limited 3-year warranty against faulty materials or manufacturing defects, effective from the production date. This warranty is invalidated by mechanical or electrical damage caused by incorrect handling or usage. Products must be returned via an authorized supplier for repair or replacement, with full problem details. Full warranty and product return policy details are available upon request.

Compliance and Certification

The HFW-CEM-02 is certified for use in compatible fire detection and alarm systems, meeting standards EN 54-25:2008 and EN 54-18:2005. It carries relevant certification marks (CE, UKCA) and identification numbers (e.g., 2831/0051/0681, 0832).