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VESDA Modbus Type 3 HLI Standard · VESDA Programming and Connectivity

Xtralis VHX-0420 VESDA Modbus Type 3 HLI Standard

Product type
VESDA Modbus Type 3 HLI Standard
Function
Integrates VESDAnet network with host monitoring platforms such as Building Management Systems (BMSs) and Fire Alarm Control Panels (FACPs); acts as a proxy for all VESDA devices on the network
Mounting
Standard unit for use where permanent mounting is not required; requires a VESDAnet socket interface to connect to the VESDAnet network
Supply voltage
24 VDC
Current consumption
70 mA (Quiescent)
Power consumption
1.68 W (Quiescent)
Number of detectors supported
Up to 100 detectors

You will also need

Needed to install, power or certify this product.

VRT-300

Remote VESDAnet socket

Standard HLI needs a remote VESDAnet socket to connect onto VESDAnet.

£568.10
ex VAT
£681.72 inc VAT
Sold separately

Overview

What it is and how it fits the system.

The VHX-0420 is the standard VESDA Modbus Type 3 High Level Interface, giving a flexible solution where permanent mounting is not required and connecting through a VESDAnet socket interface. It integrates a VESDAnet network with host monitoring platforms such as Building Management Systems and Fire Alarm Control Panels, supporting up to 100 detectors at 24 VDC and 70 mA quiescent. Backed by a 2-year product warranty.

Technical overview

The VHX-0420 is the Xtralis VESDA Modbus Type 3 High Level Interface Standard, a flexible interface unit for integrating VESDAnet networks with host monitoring platforms where permanent mounting is not required. It acts as a proxy for all VESDA devices on the network, supporting up to 100 detectors and connecting via a VESDAnet socket interface to Building Management Systems and Fire Alarm Control Panels using Modbus communication.

Operating at 24 VDC with a quiescent current of 70 mA (1.68 W), the unit features RS-485 for VESDAnet and RS-232 for VESDAlink/Host connections. The VHX-0420 requires a remote VESDAnet socket (VRT-300) for network connection and uses VESDAlink (VSP-509) and VESDAnet (VSP-511) cables for configuration and physical wiring. It measures 7.4 in. x 3.9 in. x 1.6 in. (188 mm x 98 mm x 40 mm), weighs 0.9 lbs (0.4 kg), and is backed by a 2-year product warranty, with continued support in China among remaining VHX variants.

Specifications

Full technical data for this part.

Product typeVESDA Modbus Type 3 HLI Standard
FunctionIntegrates VESDAnet network with host monitoring platforms such as Building Management Systems (BMSs) and Fire Alarm Control Panels (FACPs); acts as a proxy for all VESDA devices on the network
MountingStandard unit for use where permanent mounting is not required; requires a VESDAnet socket interface to connect to the VESDAnet network
Supply voltage24 VDC
Current consumption70 mA (Quiescent)
Power consumption1.68 W (Quiescent)
Number of detectors supportedUp to 100 detectors
Dimensions7.4 in. x 3.9 in. x 1.6 in. approx. (188 mm x 98 mm x 40 mm)
Weight0.9 lbs (0.4 kg)
Product warranty2 years
Communication interfaceRS-485 (VESDAnet); RS-232 (VESDAlink/Host)
Protocol supportsVESDA VLP, VLS, VLC, VLF, VLI and VFT-15 detectors; VESDA-E VEU, VEP, VES and VEA detectors; Alarm Status; Fault Status; Smoke Level; Detailed Fault Information; Alarm Thresholds; Detector Control including Reset, Disable, Silence, Alarm Test and Normalise
Ordering codeVHX-0420 — VESDA Modbus Type 3 HLI Standard
Lifecycle statusContinues to be supported in China (listed among remaining supported VHX variants)

Specifications sourced from manufacturer documentation.

Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know

Optional accessories

Optional additions — this product works without them.

VEU-A00

VEU with LEDs

supports VESDA-E VEU detector

£4,152.08
ex VAT
£4,982.50 inc VAT
Sold separately
VEU-A10

VEU with 3.5" Display

supports VESDA-E VEU detector

£4,923.15
ex VAT
£5,907.78 inc VAT
Sold separately
VEP-A00-1P

Single Pipe VEP with FOK LED's - Black Plastic

supports VESDA-E VEP detector

£2,135.55
ex VAT
£2,562.66 inc VAT
Sold separately
VEP-A00-P

4 Pipe VEP with FOK LED's - Black Plastic

supports VESDA-E VEP detector

£2,732.98
ex VAT
£3,279.58 inc VAT
Sold separately
VEP-A10-P

4 Pipe VEP with 3.5" Touchscreen Display - Black Plastic

supports VESDA-E VEP detector

£3,224.60
ex VAT
£3,869.52 inc VAT
Sold separately
VES-A00-P

VESDA-E VE Scanner detector with LED's

supports VESDA-E VES detector

£5,065.75
ex VAT
£6,078.90 inc VAT
Sold separately
VES-A10-P

VESDA-E VE Scanner detector with 3.5" Display

supports VESDA-E VES detector

£5,644.20
ex VAT
£6,773.04 inc VAT
Sold separately
VEA-040-A00

VESDA-E VEA-40 Det with LEDs

supports VESDA-E VEA detector

£7,984.45
ex VAT
£9,581.34 inc VAT
Sold separately
VEA-040-A10

VESDA-E VEA-40 Det with 3.5" Display

supports VESDA-E VEA detector

£8,789.45
ex VAT
£10,547.34 inc VAT
Sold separately
VLI-880

VLI with relays and Ethernet only

supports VESDA VLI detector

£6,602.15
ex VAT
£7,922.58 inc VAT
Sold separately
VLI-885

VLI with VESDAnet

supports VESDA VLI detector

£7,173.70
ex VAT
£8,608.44 inc VAT
Sold separately

Spares & replacement parts

Replacement parts for units already in service.

VSP-509

LaserCOMPACT RO 9 pin lead

Uses VESDAlink RS-232 9-way serial cable (male–female); spare part VSP-509

£77.63
ex VAT
£93.16 inc VAT
Sold separately