1
2
2.2 k
1.0 k
2.2 k
33 k
1.0 k
NC
NC
T
T
NC NC
T
T
1
Figure 6.3: Alarm resistors overview
Tamper/EOL resistors (pin block section 2)
Use the selection pins labeled 2 when wiring to control panels with single, dual, or triple EOL
resistor configurations.
When placing a jumper across the desired pins, the corresponding resistance value is
connected in series with the alarm and tamper terminals adjacent to each other (from left to
right the fourth (NC) and fifth (T) terminals).
During normal operation, the control panel verifies the continuity of the alarm loop with the
help of this resistor. The loop continuity breaks and indicates a tamper condition if any of the
following occurs: the tamper switch opens, the motion detector body is removed from the
base, or the wire is cut.
The available resistance values are 1 kΩ, 2.2 kΩ, and 33 kΩ.
Notice!
When using single EOL loops, this resistor represents the EOL resistor. Refer to the control
panel documentation to verify whether individual outputs signaling different conditions
(alarm, tamper, or trouble) should be connected on the same loop. Single EOL loops with
multiple outputs connected in series with the resistor cannot determine which output
contacts opened the loop.
18
en | Wiring
Commercial Series TriTech Motion
Detector
2015.06 | 02 | F.01U.314.294
Reference Guide
Bosch Security Systems, Inc
