VESDA VFT-15 Product Guide
VESDA by Xtralis
12
www.xtralis.com
3.2
Cable Connections
Note:
All work carried out on the VFT-15 detector should be performed by fully qualified personnel. The
molded chamber is serviceable.
Caution:
Before carrying out any work that requires the removal of any board ensure that the power
supply is disconnected.
A fused junction box may be used as an external disconnect device.
Attention :
Avant la pose ou la dépose des batteries, ou tout autre travail imposant la dépose d'une carte,
vérifiez que l'alimentation est débranchée.
Il est possible d'utiliser une boite de dérivation avec fusible comme dispositif d'isolement
externe.
3.2.1
Main Board Connections
This section describes the power, input / output and communications connections for the VFT-15 detectors
and how to access the interfaces for the connections. A summary of these interfaces is shown in the following
table.
Category
Name
Description
Power
24 VDC Input
24 VDC power input from external power supply.
Refer to page 13 for further information.
Auxiliary 24 VDC Output 24 VDC power output rated to 1A for powering an external
sounder, addressable I/O devices etc.
Input / Output
Fault Relay Output
Activates when a Fault is detected.
Alarm Relay Outputs
Alarm relays for each Alarm level (Alert, Action, Fire 1, Fire 2)
that are activated when the corresponding alarm level is
detected.
Remote Reset / Isolate
Input
Dual action input for remote reset and isolate.
Remote Reset
: Activated by applying 24 VDC.
Remote Isolate
: Activated by applying 24 VDC for 8 seconds
or more. Once 24 VDC is removed, the system reverts to
normal operation.
The function of this input is programmed in the Setup Menu.
More information can be found in Section 5.3.8.
Communications RS 485
Enables the following connections:
l
Connection to a remote Display Panel
or;
l
Connecting up to 30 detectors on an RS 485 multi-drop
network
l
Connection to a PC with Xtralis VSC or VSM4 via a
RS232-RS485 converter.
Ethernet
Enables TCP/IP connections to a PC with Xtralis VSC or
VSM4 via LAN/WAN.
RS 232
Enables a direct serial connection to a PC with Xtralis VSC or
VSM4 for configuration and monitoring.
Table 3-1: Standard Connections
More information on connecting and using the communications interfaces can be found in Appendix D.