Bosch DS484Q User manual

EN
Installation Instructions
Quad Beam
Photoelectric Detectors
DS484Q/DS486Q

DS484Q/DS486Q |Installation Instructions | 1.0 Overview
2 Bosch Security Systems, Inc. | 7/05 | 4998138530F
1.0 Overview
1.1 Description
The DS484Q and DS486Q are photoelectric quad beam detectors that use four pulsed infrared beams to activate
an alarm relay upon detection of an intruder. Both models contain a transmitter that emits an invisible infrared
beam, and a receiver. If the beam is broken, the receiver signals an alarm. Multiple channel operation provides
increased system flexibility by allowing multiple devices to be used near each other without cross-talk or other
interference.
1.2 Components
Figure 1: DS484Q/DS486Q Components
1 2 3
12
17
11
10
6
7
8
5
13
14
15
16
9
4
1 - Chassis
2 - Base
3 - Cover
4 - Mounting holes
5 - Vertical adjustment screw (upper)
6 - Terminal block (transmitter has five terminals,
receiver has nine terminals)
7 - Wire entrance
8 - Vertical adjustment screw (lower)
9 - Base mounting screws
10 - Optical module (upper)
11 - Scope (upper)
12 - Horizontal adjustment screw (upper)
13 - Operation panel (refer to Figure 2 or Figure 3)
14 - Optical module (lower)
15 - Scope (lower)
16 - Horizontal adjustment screw (lower)
17 –Cover mounting screw

DS484Q/DS486Q |Installation Instructions | 1.0 Overview
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Figure 2: DS486Q Transmitter Operation Panel
OUTDOOR
INDOOR
BEAM POWER CONTROL (m)
60
120
100
200
130
260 160 320
200
400
180
360
MODEL:DS486Q
SWITCH
OFF ↔ON
No ITEM OFF ON
1Group AB
2
3SEE CHART BELOW
4NULL --
SW2 - 3 : CHANNEL
M
OFF
OFF
SW2
SW3
1
OFF
ON
2
ON
OFF
3
ON
ON
POWER
2
1
3
1 - POWER LED
2 - Beam power control
3 - DIP switches
Figure 3: DS486Q Receiver Operation Panel
6
INTERRUPTION
TIME (msec)
50
75
100 150 200 300
400
500
ALIGNMENT IS COMPLETED
WHEN ‘ ‘ IS OFF
SW2 - 3 : CHANNEL
M
OFF
OFF
SW2
SW3
1
OFF
ON
2
ON
OFF
3
ON
ON ALIGNMENT
CHECK
TERMINALS
SWITCH
OFF ↔ON
No ITEM OFF ON
1Group AB
2
3SEE CHART BELOW
4AND/OR
AND OR
5BYPASS
OFF ON
6SOUND
CHECK OFF ON
EDC LEVEL
ALARM
3
4
5
1
2
1 - INTERRUPTION TIME switch
2 - Alignment check terminals
3 - ALARM LED
4 - Level meter
5 - Environmental discrimination circuit (EDC) LED
6 - DIP switches
1.3 Features
1.3.1 100 Times Sensitivity Allowance
Stable operation is maintained even if 99% of beam energy is cut by environmental disturbances such as rain, fog,
or frost.
1.3.2 Beam Power Control
Use this feature to select the appropriate beam intensity for the detection range. Controlling beam intensity
minimizes the risk of reflection off nearby walls and cross detection with other detectors.
1.3.3 Beam Interruption Time Control
Use this feature to change the beam interruption time to best fit the application.
1.3.4 Using Multiple Transmitter-and-Receiver Sets
Up to four transmitter-and-receiver sets can be stacked.
1.3.5 Selectable Beams
The beams in the DS484Q and DS486Q are configurable into eight different combinations (two groups by four
channels). These combinations can eliminate false alarms that can occur from cross-talk when multiple beams are
stacked, or when the transmitter and receiver are separated by a long distance.
The diameter of the transmitted beam increases with increased distance between the transmitter and
receiver. At distances that approach the maximum range, the beam might reach two or more
receivers. Refer to Section 2.1.2 Beam Spread on page 5 for additional information.

DS484Q/DS486Q |Installation Instructions | 1.0 Overview
4 Bosch Security Systems, Inc. | 7/05 | 4998138530F
1.3.6 Selectable AND/OR Gate
The photoelectric intrusion detection system in the
DS484Q and DS486Q provides alarm relay activation
for different considerations. Use the DIP Switches to
select the required protection:
AND gate – All four beams must be blocked
simultaneously to cause an alarm. This setting results in
fewer false alarms caused by birds and other small
animals.
OR gate – Either the upper or lower pairs of beams
must be blocked. This setting can detect an intruder
crawling on the ground.
1.3.7 Environmental Discrimination Circuit (EDC)
The Environmental Discrimination Circuit (EDC)
sends a signal when maintaining stable operation
becomes difficult due to environmental disturbances.
The EDC detects the gradual loss of signal along the
beam’s path because of dirt built up on the cover, or
because of rain, fog, or snow. If the signal decreases by
95% over at least 4-seconds, the EDC activates the
EDC LED (refer to Figure 3 on page 3) and relay. This
indicates that something is partially blocking a beam,
or that the covers need cleaning.
The EDC feature was not evaluated by
Underwriters Laboratories (UL).
Figure 4: Receiver DIP Switches
2
1
1 - DIP switches 1through 4 and 6 in the OFF
position
2 - DIP Switch 5 (EDC BYPASS Switch) in the
ON position
To use the EDC Bypass Switch, set the receiver’s DIP
Switch 5 to ON or OFF (Figure 4). Refer to Table 1 for
information about the functions and detector status.
Connect the EDC to a trouble circuit.
Check the system after the EDC relay
activates.
Table 1: EDC BYPASS Switch States
Detector Status BYPASS Switch
OFF
BYPASS Switch
ON
EDC LED lights
and EDC signal
is provided
through the
normally-closed
relay output at
the receiver.
EDC LED turns
on and EDC
signal is provided
through the
normally-closed
relay output at
the receiver.
Poor
Environmental
Condition*
The alarm is
generated by loss
of beam energy.
With the loss of
beam energy, the
ALARM LED
lights but alarm
signal is not
generated (alarm
relay is
automatically
shunted).
EDC LED turns
on and EDC
signal is provided
EDC LED turns
on and EDC
signal is
provided.
When either
optical module is
blocked for 3 or
more seconds.
No alarm output
is generated.
If another optical
module is
blocked, the
ALARM LED
turns ON, but no
alarm signal is
generated.
After the
specified
interruption time,
the ALARM LED
turns ON and
alarm signal is
generated.
After the
specified
interruption time,
the ALARM LED
turns ON, and
alarm signal is
generated.
When both
optical modules
are blocked for 3
seconds.
If beams are
blocked for more
than 3 seconds,
EDC LED turns
ON, and EDC
signal is
generated.
EDC LED does
not turn ON, and
EDC signal is not
provided.
∗Poor environmental condition refers to difficulty in maintaining
stable operation due to environmental disturbances like fog or
rain.

DS484Q/DS486Q |Installation Instructions | 2.0 Installation
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2.0 Installation
2.1 Installation Considerations
Read the following information before installing,
wiring, and performing regular maintenance on the
equipment.
Do not install the detector:
•near trees and plants where falling leaves can block
the beam
•where intense sources of light and sunlight can
reflect directly into the receiver optics
A beam of light shining at a ±3-degree
angle of each receiver can cause false
alarms.
•on movable surfaces
•where subject to splashing water or sea spray
•beyond the maximum range of each model
•where strong electrical noise or radio frequency
interference occurs
•where strong vibration occurs
•in the presence of corrosive or explosive gas
Face upper and lower optical modules toward each
other on the transmitter and the receiver.
•Do not install or wire detectors during a
thunderstorm.
•Do not supply power until all wiring is
completed.
•Maintain power between 10.5 VDC and
28 VDC at all times.
•Do not disassemble or modify the base.
2.1.1 Beam Strength over Distance
The beam strength is best if used within the maximum
range of the detectors. If used for shorter distances,
excess beam energy reaches the receiver resulting in
reflection off nearby walls and incorrect
communication with other detectors.
2.1.2 Beam Spread
The beam spread is +0.7°. Refer to Figure 5 and Table 2
to determine the installation conditions.
Table 2: Beam Spread Distances
Between
Transmitter and
Receiver∗
Horizontal
Spread∗
Total Vertical
Spread∗
m ft m ft m ft
20 66 0.5 1.7 0.8 2.6
40 131 1.0 3.3 1.3 4.3
60 197 1.5 4.9 1.8 5.9
80 263 2.0 6.6 2.2 7.2
100 328 2.5 8.2 2.7 8.9
120 394 3.0 9.8 3.2 10.5
140 459 3.5 11.5 3.7 12.1
160 525 4.0 13 4.2 13.7
180 591 4.5 14.8 4.7 15.4
200 656 6.0 16.4 5.2 17.1
∗Refer to Figure 5.
Figure 5: Beam Spread
2
4
3
1
1 - Beam spread
2 - Distance between transmitter and receiver
3 - Horizontal spread
4 - Total vertical spread

DS484Q/DS486Q |Installation Instructions | 2.0 Installation
6 Bosch Security Systems, Inc. | 7/05 | 4998138530F
2.2 Mounting
Mount the DS484Q and DS486Q in one of two ways:
•Pole mounted
•Wall mounted
2.2.1 Pole Mounting
1. Choose an appropriate mounting location for
the system. Install poles with a clear line-of-
sight between the transmitter and the receiver.
2. Loosen the transmitter’s cover mounting screw
and remove the cover. Refer to Items 3 and 17
in Figure 1 on page 2.
3. Loosen the two mounting screws and remove
the chassis by sliding it down against the base
Refer to Refer to Items 1 and 9in Figure 1 on
page 2.
Single Unit Pole Mounting
1. Use the short clamping screws to attach the
mounting plates to the chassis. Refer to Figure 6.
2. If the pole diameter is between 3.8 cm and 4 cm
(1.5 in. and 1.6 in.), use the shorter flange
(1.0 cm [0.4 in.]) of the mounting plate.
If the pole diameter is between 4 cm (1.6 in.) and
4.3 cm (1.7 in.), use the longer flange (1.5 cm
[0.6 in.]) of the mounting plate. This ensures that
the end of the screw does not contact the pole.
Figure 6: Using Mounting Plates
1
3
2
1 - Mounting plate
2 - Chassis
3 - Short clamping screws
3. Use the U-clamps and the long clamping screws to
attach the chassis firmly. Refer to Figure 7. Make
sure the transmitter is mounted in direct line-of-
sight of the receiver.
Figure 7: Using U-clamps
2
1
1 - U-clamp
2 - Long clamping screws
4. Insert the wiring through the chassis wire entrance,
leaving enough wire to access the transmitter’s
terminal block. Refer to Items 6 and 7in Figure 1 on
page 2.
5. Slide the transmitter onto the chassis. Tighten the
base mounting screws. Refer to Figure 1 on page 2.
6. Repeat the mounting process for the receiver.
Make sure to mount the receiver in direct line-of-
sight of the transmitter.

DS484Q/DS486Q |Installation Instructions | 2.0 Installation
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Back-to-Back Pole Mounting
Figure 8: Back-to-Back Pole Mounting
1. With spacers between the two units, mount the
transmitter and the receiver back-to-back. Refer to
Figure 8.
2. Use nuts and bolts to attach each unit firmly to the
pole.
3. Make sure that the units are aimed so that the
transmitter and the receiver in the same set are
aligned with each other.
2.2.2 Wall Mounting
Refer to Figure 9 for Steps 1 through 7.
1. Loosen the transmitter’s cover mounting screw and
remove the cover.
2. Loosen the two base mounting screws and remove
the chassis by sliding it down against the base.
3. Insert wiring through the chassis wire entrance,
leaving enough wire to access the transmitter’s
terminal block.
4. Insert the chassis mounting screws through the
mounting holes to mount the chassis on the
mounting surface.
5. Insert wiring through the wire entrance of the
transmitter. Remove the wire entrance at the
bottom of the transmitter.
6. Reattach the transmitter to the chassis.
7. Repeat this mounting procedure for the receiver.
Make sure it is mounted in a direct line-of-sight to
the transmitter.
Figure 9: Wall Mounting
1 2 3
7
4
5
6
8
1 - Chassis
2 - Base
3 - Cover
4 - Mounting holes
5 - Terminal block
6 - Wire entrance
7 - Base mounting screws
8 - Cover mounting screw

DS484Q/DS486Q |Installation Instructions | 3.0 Wiring
8 Bosch Security Systems, Inc. | 7/05 | 4998138530F
3.0 Wiring
Apply power only after all connections are
made and inspected.
Install these detectors according to the
National Electrical Code, NFPA-70.
Table 7 is based on one set (transmitter and receiver)
connected to the same wire run from the power source.
When installing two or more sets on one wire run,
calculate the maximum length by dividing the
maximum listed wire length by the number of sets
installed.
Connect the transmitters and receivers to a UL Listed
power supply or control panel capable of providing
standby power for at least 4 hours.
Test this system at least once a week to ensure proper
operation.
Table 3: Wire Length / AWG Chart
Maximum Distance [m (ft)]
DS484Q DS486Q
Wire
Gauge
[mm2
(AWG)] 12 VDC 24VDC 12VDC 24VDC
0.8
(22)
90
(295)
850
(2789)
80
(295)
730
(2395)
1.06
(19)
180
(591)
1670
(5479)
150
(492)
1420
(4659)
1.37
(17)
330
(1083)
3020
(9908)
280
(919)
2580
(8465)
1.8
(14)
590
(1936)
5370
(17618)
500
(1640)
4570
(14993)
Figure 10: Transmitter, Terminal Block Wiring
1
2
3
+
-
COM
NC
1 - Power (non-polarized), 10.5 VDC to 28.0 VDC
2 - Tamper Output (1b), 30 VDC 0.1 A
3 - Synchronized wiring
Figure 11: Receiver, Terminal Block Wiring
4
3
1
2
+
-
COM
NC
NO
EDC
NC
TAMPER
NC
1 - Power (non-polarized), 10.5 VDC to 28.0 VDC
2 - Alarm Output (1c), 30 VDC 0.2 A
3 - EDC Output (1b), 30 VDC 0.2 A
4 - Tamper Output (1b), 30 VDC 0.1 A

DS484Q/DS486Q |Installation Instructions | 3.0 Wiring
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Figure 12: Single Set - Wiring Example
1
32
4
5
COM
NC
+
-
+
-
1 - Terminal block on transmitter and receiver
2 - Receiver
3 - Transmitter
4 - Power output
5 - Alarm input (INC)
Figure 13: Two Sets on the Run – Wiring Example
1
32
4
5
23
COM
NC
+
-
+
-
COM
NC
+
-
+
-
1 - Terminal block on transmitter and receiver
2 - Receiver
3 - Transmitter
4 - Power output
5 - Alarm input (INC)

DS484Q/DS486Q |Installation Instructions | 4.0 Setup and Alignment
10 Bosch Security Systems, Inc. | 7/05 | 4998138530F
4.0 Setup and Alignment
4.1 Setup
4.1.1 Receiver Setup
Figure 14: Receiver Setup Switches
INTERRUPTION
TIME (msec)
50
75
100 150 200 300
400
500
ALIGNMENT IS COMPLETED
WHEN ‘ ‘ IS OFF
SW2 - 3 : CHANNEL
M
OFF
OFF
SW2
SW3
1
OFF
ON
2
ON
OFF
3
ON
ON ALIGNMENT
CHECK
TERMINALS
SWITCH
OFF ↔ON
No ITEM OFF ON
1Group AB
2
3SEE CHART BELOW
4AND/OR
AND OR
5BYPASS
OFF ON
6SOUND
CHECK OFF ON
EDC LEVEL
ALARM
1
2
3
1 - INTERRUPTION TIME switch
2 - DIP Switch 4 (ON or OFF for the AND/OR
gate)
3 - DIP Switch 5
2. Select the beam alarm condition by setting DIP
Switch 4 ON or OFF for the AND/OR gate. Refer
to Figure 14.
•If DIP Switch 4 is ON, the OR condition is
selected. The upper or lower beam pairs must
be broken to cause an alarm.
•If DIP Switch 4 is OFF, the AND condition is
selected. The upper and lower beam pairs
must be broken to cause an alarm.
3. Choose whether or not to bypass alarms by setting
DIP Switch 5 to ON or OFF when the EDC
activates. Refer to Section 1.3.7 Environmental
Discrimination Circuit (EDC) on page 4 for more
information.
The EDC is always on. DIP Switch 5 (BYPASS)
controls the alarm condition relative to the EDC
relay status. Refer to Figure 4 on page 4.
•If DIP Switch 5 is ON, the system alarms only
if the EDC relay is not activated. If the EDC is
activated, the system does not indicate an
alarm.
•If DIP Switch 5 is OFF, the system alarms
regardless of whether the EDC relay is
activated or not.
Connect the EDC to a trouble circuit, and
check the system any time the EDC relay
activates.
If the EDC remains activated for prolonged
periods when the beam path is clear, the
beam might be misaligned. Refer to
Section 4.2 Alignment on page 13 to re-
align the beam.
4. Use a Phillips head screwdriver to adjust the rotary
INTERRUPTION TIME switch according to how
sensitive you want the detector to be to movement
(catch performance). Refer to Figure 14 for the
location of the INTERRUPTION TIME switch.
Refer to Table 4 for interruption times and
corresponding catch performance examples.
For UL applications, the interrupt time
cannot be set above 75 ms.
For best performance when using the AND
mode, do not exceed 100 ms beam
interruption time.
Table 4: Beam Interruption Time Examples
Interrupt Time (ms) Catch Performance
50 Running
100 Jogging
200 Fast Walking
300
400 Normal Walking
500 Slow Moving