VESDA VHX-0310 Open Protocol HLI Master-Slave
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- Brand
- VESDA
- Manufacturer part number
- VHX-0310
- Datasheet
- On request — ask our team
- EN 54 part / class
- —
- Load factor per device
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- Max quantity per loop
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Overview
What it is and how it fits the system.
Nothing arrives at the host unless the host asks for it, because VHX-0310 works to the master-slave model.
Direct access and monitoring of your VESDAnet system is what the interface provides across that link, with nothing raised by the HLI on its own initiative.
VESDA HLIs are recommended for secondary monitoring of fire alarms and other notifications from VESDAnet network. They are also suitable for primary reporting to the fire panel or other primary reporting systems. When used for primary reporting VESDA HLIs need to be integrated and approved or listed with the relevant fire panel or the primary reporting system for the relevant fire standards and codes.
Key features
- Master-Slave Communication Model — The host supervises the communications link between itself and the HLI (slave) by regularly polling the HLI.
- Direct VESDAnet Access — The interface gives direct access and monitoring of your VESDAnet system.
- Up To 40 Detectors — Up to 40 detectors are supported.
- Supply And Consumption — The unit takes 24 VDC and 70 mA (Quiescent), consuming 1.68 W (Quiescent).
- Unit Weight — It weighs 0.4 kg (0.9 lbs).
- No Modem Support — Modem support is not available.
- Alarm And Detector Status — Alarm status (Alert, Action, Fire1 & Fire2) and status (Isolated, Normalizing, AutoLearn, Scanning) are both reported.
Technical overview
VHX-0310 is the Open Protocol HLI (Master-Slave), a VESDA high level interface which links a VESDAnet to PC software monitoring tools, Building Management Systems (BMSs) and Fire Alarm Control Panels (FACPs). In the master-slave model, the host supervises the communications link between itself and the HLI (slave) by regularly polling the HLI to determine whether there has been a change in the status of a detector on VESDAnet.
Depending on the polling strategy adopted, the Master/Slave Open Protocol HLI is able to report any and all fire alarms within a few seconds of a detector going into alarm, and exact performance is dependent on the polling strategy adopted.
Electrically the unit takes 24 VDC and 70 mA (Quiescent), consuming 1.68 W (Quiescent), and it weighs 0.4 kg (0.9 lbs). Up to 40 detectors are supported and modem support is not available. Alarm status (Alert, Action, Fire1 & Fire2) and detector status (Isolated, Normalizing, AutoLearn, Scanning) both cross the link to the host. Secondary monitoring — fire alarms, plus other notifications raised across a VESDAnet — is the duty a VESDA HLI is recommended for; primary reporting to a fire panel or other primary reporting system is also suitable, but only once the unit has been integrated and approved or listed with that panel or system for the relevant fire standards and codes.
Specifications
Full technical data for this part.
Identification
| Ordering code | VHX-0310 |
|---|---|
| Description | Open Protocol HLI (Master-Slave) |
Electrical
| Power consumption | 1.68 W (Quiescent) |
|---|---|
| Supply voltage | 24 VDC |
| Current consumption | 70 mA (Quiescent) |
Physical
| Dimensions | 188 mm x 98 mm x 40 mm (7.4 in. x 3.9 in. x 1.6 in. approx.) |
|---|---|
| Weight | 0.4 kg (0.9 lbs) |
Other specifications
| Number of detectors supported | Up to 40 detectors* (* If your network has more than 40 detectors, please contact your Xtralis representative.) |
|---|---|
| Modem support | Modem support is not available |
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.
PC Link HLI + leads (Open Protocol)
Alternative — sibling Open Protocol HLI model; choose master-slave vs peer-to-peer
Spares & replacement parts
Replacement parts for units already in service.
LaserCOMPACT RO 9 pin lead
VSP-509 VESDAlink RS-232 9-way serial cable (Spare part)