Expansion Board

The NODE allows expansion of the JUNO NET system in groups of 1 to 4 loops.

It can be supplied as a standalone unit or in an enclosed cabinet, which contains a 2,3 A PSU/ Charger unit and space for standby rechargeable batteries. One RS422/RS485, fibre optic or TCP/IP interface is required per cabinet to enable networking with the rest of the system.

Each NODE mainboard controls up to four analogue addressable detection loops via its own independent processor. In the event of communication failure with the main control unit, the NODE can operate independently, detecting Fire/Fault events and activating connected sounders and internal relays.

Add to quote

Product Specifications

Additional information

Primary Supply

2.3A @ 28.5V DC nominal

Power Supply Rating

65 W

Secondary Supply

28V DC nominal



Quiescent Current (No Devices)

80 mA

Aux Power Output

28V DC 300 mA


1 to 4 – max 275 mA/ Loop

Conventional Sounder Circuits

1A max current drive for both circuits – Fully monitored

Aux Relays Fire / Sub-Panel

2x SPDT; rated 2A @ 30V DC resistive / 0.25A @ 230V AC resistive

Aux Relay Fire / Sub-Panel

1x NC; rated 2A @ 30V DC resistive / 0.25A @ 230V AC resistive

Operating Temperature

0°C to +50°C

Storage Temperature

-10°C to +50°C


113 (L) x 187 (W) x 26 (H) mm

Weight (No Batteries)

0.3 Kg

Download Centre

Add to quote