VESDA VLI Product Guide
VESDA by Xtralis
22
www.xtralis.com
USB
The USB port is used for initial configuration and local maintenance or servicing of the VLI using Xtralis VSC
software. Use the Ethernet port for a permanent network connection to the detector to allow remote
configuration or monitoring.
Install Xtralis VSC prior to connecting the VLI to the PC or Laptop. This ensures that the required USB drivers
are present.
Note:
Refer to the Xtralis VSC documentation for operating system compatibility information.
Ethernet
The Ethernet port is used for permanent network connection to the VLI. An Ethernet lead can be inserted into
the port and routed out beneath the ESD cover and through and of the cable entry ports.
Use a standard Ethernet lead when connecting the VLI to a network switch, router or directly to a PC or
laptop.
Note:
For EMC compliance, the Ethernet lead requires a ferrite to be fitted. Refer to Figure 3-10.
Figure 3-10: Ethernet lead with Ferrite
3.2.4
VESDAnet
VESDAnet is a bidirectional data communication network between connected VESDA devices. VESDAnet
connectivity is available on the VESDAnet enabled VLI detector (VLI-885). Refer to Section 2.7 for further
information.
It is recommended that RS 485 (Belden 9841 - 120 Ohm) twisted pair cables be used for including the devices
in the network.
The network cables are terminated at the VESDAnet A and B Terminals on the VESDAnet card. Cabling from
one VESDA device is brought into the detector at one terminal and looped out to another device on VESDAnet
from the other terminal.
Notes:
l
Connection between devices should be from A to B. Avoid using A to A or B to B.
l
The polarity of the data wires must be maintained throughout the network.
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