103
6. Connection
6.1 Connection terminal blocks n° 1 and n° 2
each have 3 terminals
6.2 Connecting several types of external contact
Terminal
block n° 2
Terminal
block n° 2
Terminal
block n° 1
Terminal
block n° 1
• Anti-tamper (AT1 and AT2): anti-tamper loop connection terminal
(protection against external contact wire cutting)
• Common (C1 and C2): main common terminal
• Loop (L1 and L2): detection or system control loop connection
terminal depending on configuration (see Configuration operations
chapter).
AT1
C1
L1
AT2
C2
L2
IMPORTANT
• Anti-tamper loops must be connected before the battery is
connected.
• The loop is then automatically recognised by the control panel when
the battery is connected.
• Series-wired
NC contacts
:
- surface or flush-mounted
normally closed contacts,
- glassbreak sensor
(piezo-electric),
- shock sensor,
- other non-
specific sensors.
• Series-wired anti-tamper
NC contacts
:
surface or flush-mounted normally
closed contacts
with anti-tamper
protection
• Parallel-wired
NO contacts
:
pressure mat
Anti-tamper loop
Max. loop length: 10 m
AT1/AT2
C1/C2
L1/L2
AT1/AT2
C1/C2
L1/L2
AT1/AT2
C1/C2
L1/L2
5 series
contacts max
Summary of Contents for 221-21 Series
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