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en | wLSN Devices
wLSN
F01U138553 | 01 | 2010.05
System Reference Guide
Bosch Security Systems, Inc.
Zone-Doubled or EOL Resistor and Tamper Option
Only two normally-closed contacts can be used in series with
the 1 k-ohm resistor across it. The other contact has a
2.2 k-ohm resistor across it. The zone recognizes if one contact,
both contacts, or neither contact opened. Refer to
Figure 5.8
Zone-Doubled or EOL Resistor and Tamper Option
Callout
Description
1
First zone (1 k-ohm resistor)
2
Second zone (2.2 k-ohm resistor)
3
1 k-ohm resistor
4
Normally-closed tamper switch (optional)
1
2
3
4
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