GB
108
Terminal block
The terminal block has 3 terminals:
• Anti-tamper (1)
: protection loop
terminal (provides protection
against external contact wire
cutting),
• Main (2):
main common terminal
• Loop (3):
loop connection
terminal (supervises opening and
closing of protected entrance).
5. Connection
1
2
3
Max. loop length: 10 m
5 series contacts max.
Connection of several types
of contacts
‰
Example 1
Series-wired
NC contacts
:
• surface mount normally closed
contacts,
• wide gap contact
• piezo-electric glassbreak contact
• shock detector
• etc.
Example 2
Series-wired anti-tamper
NC contacts
.
Example 3
Parallel-wired
NO contacts
:
pressure mat.
1
2
3
5 series contacts max.
Max. loop length: 10 m
Anti-
tamper loop
1
2
3
Max. loop length: 10 m
Unlimited
number
of
contacts
Summary of Contents for SH271AX
Page 1: ... upgraded for e Nova applications ...
Page 22: ...805349 A 05 2013 ...
