
TWINFLEX
®
pro² Control Panel Engineering and Commissioning Manual
12
Overview – 4 / 8 zone Panel
The above diagram shows the terminals for the 4 zone /
8 zone version of the TWINFLEX®pro² panel.
Note: References to voltages are nominal values,
batteries may be 3.2Ah/3.4Ah
Network: NET A, NET B, SCRN
NET A & B is an RS485 buss and can communicate with ancillary equipment.
Note: The RS485 Bus can only be used on 4 & 8 zone panels & will not work on 2 zone panels.
Refer to the ancillary equipment manuals for network connections.
Note: Ancillary equipment e.g. repeaters connected to the network do not meet EN 54-2 requirements.
TERMINAL
DESCRIPTION
USB
USB-B
USB-B CONNECTION FOR PC LINK
NETWORK
NET A
Peripheral Bus Connections
NET B
Peripheral Bus Connections
SCRN
Peripheral Bus Connections
NET A
Peripheral Bus Connections
NET B
Peripheral Bus Connections
SCRN
Peripheral Bus Connections
MONITORED I/P
MI1 +
Monitored Input positive connection
MI1 -
Monitored Input 0V connection
SCRN
Field cable screen connection
PROG I/P 1+2
+
Programmable Input positive connection
-
Programmable Input 0V connection
ZONES 1 - 8
Z +
Device zone positive connection
Z -
Device zone 0V connection
SCRN
Field cable screen connection
FAULT RELAY
N/C
Normally closed fault contact
N/O
Normally open fault contact
COM
Common fault contact
FIRE RELAY
N/C
Normally closed fire contact
N/O
Normally open fire contact
COM
Common fire contact
MONITORED O/P 1+2
MO +
Monitored Output positive connection
MO -
Monitored Output 0V connection
SCRN
Field cable screen connection
AUX SUPPLY
AUX +
Aux power positive connection
AUX -
Aux Power 0V connection
SCRN
Field cable screen connection
BATTERY
BATT +
24V DC 3.3Ah Battery positive connection
BATT -
24V DC 3.3Ah Battery 0V connection
PSU
+V IN
24V DC Input from Switch Mode PSU
0V IN
0V DC Input from Switch Mode PSU
Earth
Earth input from Switch Mode PSU
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