Bosch Appliances Home Security System MX938I User Manual

2.0 Control Panel Programming  
Refer to the multiplex programming section of your Control Panel  
Reference Guide for information on programming multiplex zones  
for this device.  
Installation Instructions  
for the MX938i  
Ceiling Mount Multiplex  
PIR Intrusion Detector  
3.0 Mounting  
Avoid  
1.0 Specifications  
Input Power:  
Connects directly to the Multiplex Bus of the  
Control Panel and optionally to an auxiliary  
12 VDC source.  
Moisture  
Moving objects  
Current Draw:  
2-Wire:  
Mounting Outdoors  
Direct or  
Hot or cold air  
reflected  
LED Off:  
< 350 µA draw on Mux Bus.  
directed onto  
sunlight  
In Alarm; LED On: 2 mA draw on Mux Bus.  
4-Wire:  
sensor  
Pets or animals  
LED Off:  
< 350 µA draw on Mux Bus.;  
0 mA draw on Aux. power.  
In Alarm; LED On: < 350 µA draw on Mux Bus;  
Walk Test/Alarm  
3 mA draw on Aux. power.  
LED Indicator (3)  
Module Tabs (2)  
Standby Power: There is no internal standby battery. Connect  
to DC power sources capable of supplying  
standby power if primary power fails. For each  
hour of standby time needed, 350 µAh are  
required. For UL Listed Requirements, four  
hours (1400 µAh) minimum are required.  
AR8-13  
Rear Wire  
Entrance  
Terminal  
Strip  
Terminal  
Strip  
Sensitivity  
Jumper  
Signal  
Wire  
Tie-Downs (2)  
Gain  
Interface  
Pins  
Optical Module  
with Cutaway to  
show Circuit  
Jumper  
Coverage:  
360° by 60 ft. (18.3 m) diameter coverage  
when mounted on 8 to 18 ft. (2.4 to 5.5 m)  
high ceilings. Pattern consists of 64 zones  
grouped into 16 barriers, with one additional  
zone looking straight down from the unit  
(sabotage). Each barrier is 30 ft. (9.2 m) long  
and 4.4 ft. (1.3 m) wide at 30 ft. (9.2 m).  
Choice of two optical modules depending  
on ceiling height. For UL Listed  
Requirements, the coverage is 360° by 54 ft.  
(16.5 m) when mounted 10 to 13 ft. (3.1 m to  
4.0 m) using the AR8-13 array and when  
mounted from 15 to 18 ft. (4.6 m to 5.5 m)  
using the AR13-18 array.  
Mounting  
Slots (4)  
Board detail  
LED  
Operation  
Jumper  
Address  
Cover  
Switches Top View of Enclosure Tamper  
with Cover Removed  
Mounting Base  
The mounting surface should be solid and vibration free  
(i.e., drop tiles should be secured if the area above the  
tiles is used as an air return for HVAC systems).  
IMPORTANT  
• Select a location that is most likely to intercept an intruder moving  
across the coverage pattern. The recommended mounting height  
range is 8 to 18 ft. (2.4 to 5.5 m).  
Sensitivity:  
Tamper:  
Selectable for Standard, Intermediate or High. • Remove the cover by turning counterclockwise.  
A tamper condition is signaled through the • Remove the base from the enclosure by pressing the two  
Multiplex Bus and displays at the system  
keypads.  
enclosure release tabs inward while lifting the enclosure away  
from the base.  
Temperature:  
The storage and operating temperature Hint:  
range is -20°F to +120°F (-29°C to +49°C).  
For UL Listed Requirements, the  
Slightly rock the enclosure side-to-side during removal,  
to overcome the friction caused by base-to-enclosure  
terminal pins.  
temperature range is +32°F to +120°F (0°C • Route wiring as necessary to the rear of the base and through  
to 49°C).  
the center hole.  
Control Panel  
Requirements:  
DS7400, DS7400X, or DS7400Xi Control  
Panel with a DS7430 or DS7436 Multiplex  
Expansion Module. DS7400 and DS7400X  
require ROM version 1.07 or greater. The  
9000 Series Control/Communicators with  
D8125MUX Module installed.  
Be sure all wiring is unpowered (de-energized) before  
routing.  
• Securely attach the base. Depending on local regulations, the  
base may be directly surface mounted using anchors, mollies  
or wing-nuts, or may be mounted to standard four-inch octagonal  
and square electrical boxes.  
Patents:  
This device is covered under one or more of  
the following U.S. patents: #4,764,755,  
#5,268,668, and #5,302,941.  
NOTE: The MX938i base will not completely cover a four-inch  
square box. Where aesthetics are important, a four-inch  
octagonal box is recommended.  
 
= SWITCH ON  
(CLOSED)  
= SWITCH ON  
(CLOSED)  
= SWITCH ON  
(CLOSED)  
= SWITCH ON  
(CLOSED)  
ZONE  
(POINT)  
ADDRESS  
ZONE  
(POINT)  
ADDRESS  
ZONE  
(POINT)  
ADDRESS  
ZONE  
(POINT)  
ADDRESS  
SWITCH NUMBER  
SWITCH NUMBER  
SWITCH NUMBER  
SWITCH NUMBER  
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1 2 3 4 5 6 7 8  
1 2 3 4 5 6 7 8  
1 2 3 4 5 6 7 8  
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MX938i Installation Instructions  
© 2004 Bosch Security Systems  
Page 3  
 
7.0 Setup and Walk Testing  
8.0 Maintenance  
• The range and coverage should be checked in accordance with  
the Walk Testing section (6.0) on a regular basis.  
Before walk testing, the system should be fully wired,  
powered, and programmed.  
IMPORTANT  
• Consult the Control Panel’s User's Guide for the procedure on  
performing a zone test. Performing a zone test on a regular  
basis assures an alarm output prior to arming the system.  
• Configure LED Configuration Switch (S1) to LED ON.  
Replace the front cover.  
• Excessive handling of the mirror surfaces may lead to  
performance degradation.  
NOTE: All testing must be performed with the  
front cover in place.  
9.0 Coverage Patterns  
• Refer to the mirror module and pattern drawings for masking  
information.  
• Wait at least 2 minutes (with no motion in the  
coverage area) for the detector to setup.  
• Walk test across the coverage pattern.  
• Before masking, be sure the chosen mirror surface is the correct  
one. When removing masking, remember, many adhesives will  
either destroy the mirror’s surface or leave residue behind to  
reduce coverage performance.  
• The edge of the coverage is determined by  
activation of the LED.  
• Walk test the unit from both directions to determine the  
boundaries.  
On 2-wire systems, configure the LED to OFF when  
finished with walk tests.  
IMPORTANT  
TOP VIEW  
9 Meters  
6
3
0
3
6
9
30  
30  
AR13-18 SIDE VIEW (Cross Section of 2 Opposite Zones)  
9 Meters  
6
3
0
3
6
9
4.5  
3
15  
10  
20  
20  
10  
10  
0
0
30 Feet  
20  
10  
0
10  
20  
6
30  
0
0
(Cross Section of 2 Opposite Zones)  
AR8-13 SIDE VIEW  
Meters  
9
6
0
3
9
3
10  
20  
10  
20  
10  
0
3
0
30 Feet 20  
10  
0
10  
20  
30  
30  
30  
9 Meters  
6
3
0
3
6
9
© 2004 Bosch Security Systems  
130 Perinton Parkway, Fairport, New York, USA 14450-9199  
Customer Service: (800) 289-0096; Technical Support: (888) 886-6189  
03/04  
MX938i Installation Instructions  
P/N: 45988F Page 4  
 

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