VESDA by Xtralis
VESDA VFT-15 Product Guide
www.xtralis.com
15
3.2.2
Connection Interfaces
The following tables define input and output connections for the VFT-15.
For more information on how to connect the detectors to each other and PC software using the TCP/IP,
RS232 and RS485 interfaces, refer to Appendix D.
CN1: RS232 Interface
2
Receive Data
Requires a null modem cable, up to a maximum distance of 15m (50ft).
Notes:
l
The null modem cable should have female DB9 connectors on
both ends and the transmit and receive lines crossed, i.e. pins 2
and 3.
l
Only intended for local programming.
3
Transmit Data
5
0 V
1, 4, 6, 7, 8, 9
N/C
Shell
Earth (Screen)
Table 3-2: Connections for i602 I/O Board
CN2: DC Supply
1
24 VDC in
Requires 16 x 0.25-15 A (18 AWG) cable (0.75mm² minimum
IEC60227 H05 W-F/H05 WH2-F2 for EC).
Notes:
l
Link Pin 2 (0 V) and Pin 5 (MAINS/BAT). Refer to page 13 for
further information.
l
External Power Supply Connection: For use in UL/ULC Fire
Alarm Application, refer to Appendix F Item #1.
2
0 VDC in
3
N/C
4
N/C
5
Mains/Battery
CN3: Auxiliary Supply Output Interface
1
0 VDC
Requires 7 x 0.2 - 6 A (24 AWG) cable (1 A maximum load).
2
24 VDC
CN4: Remote Reset Interface
1
- input
Opto isolated input. 24 VDC low current signal.
Notes:
l
For use in UL/ULC Fire Alarm Application, refer to
Appendix F Item #4
2
+ input
CN6: RS485 Interface
1
Shield
Belden 9842 cable (or suitable equivalent)
Notes:
l
Ensure that jumper links are fitted across pins 1-2, 4-5 and 7-8
of CN 5 when the unit is terminating a RS485 network. At all
other times, place the jumpers across pins 2-3, 5-6 and 8-9.
Refer to Section D.4 for further details on RS485 connections.
l
Not tested for UL/ULC Fire Alarm connection application.
2
RS485 -
3
RS485+
