Vesda VHX-1310 Metal Box HLI Master Slave

Vesda VHX-1310 Metal Box HLI Master Slave

The VESDA Wall-Mounted Open Protocol High Level Interface (HLI) links your VESDAnet1 with PC software monitoring tools, Building Management Systems (BMSs) and Fire Alarm Control Panels (FACPs), otherwise known as ‘host’. With a built-in VESDAnet interface you don’t need a remote VESDAnet socket module, which makes the Wall-mounted HLI a cost-effective solution to your interface requirements. There are two models available, depending on whether you require communication between your host and VESDAnet to be master-slave or peer-to-peer.

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. In response to polling by the host, the HLI generates a single response which is sent back to the host. In this way, no unsolicited messages are sent from the HLI to the host. 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. Exact performance is dependent on the polling strategy adopted.

Key Features:

• Direct access and monitoring of your entire VESDAnet system
• Seamless data transfer
• Easily configured using Xtralis configuring and monitoring software packages.

Information available using the Open Protocol HLI

• Detector Type (VLC, VLS, VLP, VLF).
• Alarm status (Alert, Action, Fire1 & Fire2).
• Fault Status (System, Zone, Urgent, Power, Network, Flow, Filter).
• Status (Isolated, Normalizing, AutoLearn, Scanning).
• Display info (Alarm thresholds, Location name).
• Display update (Smoke level, Alarm & Fault status).
• Fault details (list of active fault codes).
• Fault strings (ASCII strings to describe each fault code).
• Detector controls (Reset, Isolate, Silence, Test, Scan or Normalize2 ).
• Configuration of Day / Night alarm thresholds2