Bosch ISW-EN1261HT User manual

ISW-EN1261HT Installation Guide PIR Motion Sensor-Transmitter
Trademarks
Phillips®is a registered trademark of Phillips Screw Company in the
United States and other countries.
Overview
The ISW-EN1261HT is a wireless motion detector that features a
detection range of 15.2 m (50 ft), fixed or variable sleep time, a
walk test feature, a front and rear tamper switch, and increased
immunity to radio frequency interference, vibration, static, light
lighting ambient temperature changes, and other causes of false
activation.
The ISW-EN1261HT is supplied with a high capacity battery
providing extended battery life in high traffic environments, and is
designed with pet immunity up to 15 kg (33 lb) weight, and 30 cm
(12 in.) height.
1.0 Open the Detector Housing
To open the detector housing, release the housing screw and gently
raise the housing. Refer to Figure 1.
Figure 1: Open the Housing
1
1 - Housing screw
Figure 2: Detector Components
1PULSE AUTO
MAX
MIN
VAR
FIX
AU NZ
RST
SENS +-
1
2
3
4
5
6
7
8
9
10
1 - Frequency Band pins
2 - Sleep Duration pins
3 - Sleep Time pins
4 - Tamper switch
5 - Pulse Count pins
6 - Sensitivity Adjustment dial
7 - Test Mode Reed switch
8 - Battery connector
9 - Battery clip
10 - Reset button
2.0 Configure the Detector
To configure the detector, place a supplied jumper plug on the
appropriate pins.
Refer to Figure 2 for the location of the Frequency Band, Pulse
Count, Sleep Time, and Sleep Duration pins.
Refer to Table 1 for a description of each configuration option.
The detector retains configuration data in non-volatile memory. It
does not require re-configuration after a loss of power.
If you change the detector’s configuration settings
after initial installation, press the Reset button for the
new settings to take effect.
When pressing the Reset button, do not touch the
Frequency Band pins. Touching the Frequency Band
pins while pressing the Reset button can inadvertently
set the detector to the wrong frequency band.
Table 1: Detector Configuration Options
Option Description/Pin Setting
Select the appropriate frequency band for your
geographic area.
North America (Default):
902 MHz to 928 MHz
NZ AU
New Zealand: 921 MHz to 928 MHZ
NZ AU
Frequency
Band
Australia: 915 MHz to 928 MHz
NZ AU
Single Pulse Count (Default): Use
this setting in environments where
minor temperature fluctuations
occur. Do not use this setting at
sites where heat variants cause
false alarms.
AUTO 1
PULSE
Pulse
Count
Automatic Pulse Count: Use this
setting in environments where
temperature fluctuations might
cause false alarms.
AUTO 1
PULSE
Variable (Default): Use this setting
in high-traffic environments. If the
detector senses motion, it sends an
alarm signal and then enters a
180-sec sleep period. If the
detector senses motion before the
sleep period ends, it restarts the
180-sec sleep period.
FIX VAR
Sleep
Time
Fixed: Use this setting in normal
operating environments. If the
detector senses motion, it sends an
alarm signal and then enters a
180-sec sleep period. If the
detector senses motion after the
sleep period ends, it sends another
alarm signal.
FIX VAR
Maximum (Default): The sleep
duration is 180 sec.
MAX
MIN
Minimum:
MIN/FIX: If the sleep duration is
set to MIN and the sleep time is set
to FIX, the detector has a sleep
time of 15 sec for the first six alarm
signals while motion is still
detected, followed by one extended
sleep period of 180 sec.
MAX
MIN
VAR
FIX
Sleep
Duration
MIN/VAR: If the sleep duration is
set to MIN and the sleep time is set
to VAR, the detector has a sleep
time of 30 sec.
MAX
MIN
VAR
FIX

2 | F01U126810-01 | 3/09 ISW-EN1261HT Installation Guide ©2009 Bosch Security Systems, Inc.
2.1 Using Sleep Time and Sleep Duration
Setting the Sleep Duration pins to MIN (Minimum)
decreases battery life.
•Maximize Battery Life: To prolong battery life, set the Sleep
Duration pins to MAX and the Sleep Time pins to VAR. With
these settings, the detector sends an alarm and then sleeps for
180 sec. If motion is detected during the sleep time, it restarts
the sleep timer but does not send an alarm signal. Use this
option in high-traffic environments with frequent activity during
periods when the security system is disarmed.
•Increase Catch Rate: To maintain optimum detection
immediately following system arming, set the Sleep Duration
pins to MIN and the Sleep Time pins to FIX. When motion is
detected, the detector sleeps for 15 sec. If the detector
detects motion during this period, and is still active, the
detector sends a new alarm signal at the end of the 15-sec
timer. The detector continues to do this for five more cycles.
After six consecutive cycles, the detector sleeps for an
extended 180-sec period to conserve the battery.
2.2 Adjusting Sensitivity
To adjust the detectorís sensitivity, use a Phillips®head screwdriver
to turn the Sensitivity Adjustment dial. Refer to Figure 2 on page 1.
•To decrease sensitivity, turn the dial counterclockwise (toward
the minus sign).
•To increase sensitivity, turn the dial clockwise (toward the plus
sign).
3.0 Install the Battery
1. Install the battery in the battery clip. Ensure that the battery
connector cable is on the same side as the battery connector.
Refer to Figure 2 on page 1.
2. Plug the battery connector cable into the battery connector.
3. Press the Reset button.
The detector must stabilize for at least one minute
after power-up, at which time the detector is not
operational. During this period, the LED blinks twice
each second.
4.0 Register the Transmitter
To ensure that the detector is supervised by the system receiver,
you must register its transmitter with the system receiver. Each
detector has a unique factory-programmed identification number.
Refer to the receiver, network coordinator or control panel
installation instructions for details on registering a transmitter.
When prompted to reset the detector, press the Reset button on
the detector.
Test the detector after registration to ensure correct
operation. To test the detector, activate each of the
conditions and ensure an appropriate response.
5.0 Mount the Transmitter
1. Remove the printed circuit board (PCB) from the transmitter
housing.
2. Use the included hardware to mount the housing back plate on
the mounting surface.
- If using the wall tamper function for increased security,
mount the housing back plate (refer to Figure 3). Ensure
that the tamper switch is pressed.
- If not using the wall tamper, use all appropriate hardware,
and mount the housing back plate.
Figure 3: Housing Back Plate
11
2
1 - Mount in the corner or on the wall with one screw.
2 - Mount either in the corner, or on the wall with a screw and a
wall anchor.

©2009 Bosch Security Systems, Inc. ISW-EN1261HT Installation Guide 3/09 | F01U126810-01 | 3
Optional ISW-ACC665 Swivel Bracket
Installations that require the back tamper cannot use
the ISW-ACC665 Swivel Bracket.
The ISW-ACC665 Swivel Bracket is sold separately.
Figure 4: ISW-ACC665 Swivel Bracket Options
1 2
1 - Ceiling mount installation
2 - Wall mount installation
To mount the swivel bracket:
1. Remove the PCB from the transmitter housing.
Figure 5: Removing the PCB
2. Connect the transmitter housing to the swivel bracket.
Figure 6: Housing Back Plate
3. Re-install the PCB into the transmitter housing.
6.0 Test the Detector
To ensure correct operation, test the detector after it
is registered with the system receiver. To test the
detector, activate each of the conditions and ensure
an appropriate response.
Performing a walk test ensures that the detector senses motion and
sends an alarm signal.
To perform a walk test:
1. Swipe a magnet near the Test Reed switch to start a 5-min walk
test. Refer to Figure 2 on page 1.
2. Walk in front of the detector.
Each time motion is detected, the LED on the front of the
detector blinks, and the detector sends an alarm signal.
After 5 min, the walk test automatically ends.
Figure 7: Coverage Pattern
0 m
0 m
2 m
2 m
4 m 6 m
0 ft
7.9 ft
7.9 ft
8 m 10 m 12 m
13 ft 26 ft 39 ft
14 m 16 m
52 ft
4 m 13 ft
2.4 m
50 ft
15.2 m
0 m
0 m
2 m
16 m
2 m
4 m
14 m
4 m
6 m
6 m
12 m
0 ft
52 ft
13 ft
8 m 10 m 12 m
13 ft 26 ft 39 ft
10 m
8 m
14 m 16 m
52 ft
39 ft
26 ft
85o
1
2
1 - Top view
2 - Side view

© 2009 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, NY 14450-9199 USA
[phone]
F01U126810-01
Installation Guide
3/0
9
ISW-EN1261H
T
Page 4 of
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7.0 Specifications
Dimensions
(H x W x D)
11.4 8cm x 6.4 cm x 4.1 cm
(4.5 in. x 2.5 in. x 1.6 in)
Operating
Temperature
0° C to +50° C (+32° F to +122° F)
Humidity 10% to 90% (non-condensing)
Temperature
Compensation
Yes
Battery 3 V, 2.2 Ah (ISW-BAT610)
Tamper Housing and wall tamper
PIR RF
Interference
Immunity
Greater than 30 V/m; 26 MHz - 1 GHz
Alarm Lockout
Time
3 min (in fixed, maximum mode)
Mounting Height 2.1 to 2.7 m (7 to 9 ft)
Detection Method Quad element PIR
Stabilization
Period
1 min
Walk Test Period 5 min