Bosch D1255RB Installation Guide Page 8
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D9412GV2/D7412GV2 | Operation and Installation Guide | 2.0 Lightning Strikes
8 Bosch Security Systems, Inc. | 7/09 | F01U003641-04
2.0 Lightning Strikes
The control panels are designed to significantly
reduce electromagnetic interference and malfunction
generally caused by lightning.
2.1 Effects
Any electronic system can be struck directly by
lightning or be adversely affected by a lightning strike
near the system. When lightning strikes, several
things happen:
• An electromagnetic wave spreads from the point
of the strike inducing high voltages in nearby
conductors.
• The voltage changes substantially on electrical
grounds near the lightning strike.
• High voltages are induced upon anything directly
struck by lightning.
Symptoms of installations that lightning might strike or
affect are Missing Trouble, Missing Alarm, or Point
Bus Trouble events. Occasionally, Reboot and
Watchdog events might be sent because the control
panel tried to reset itself.
Electronic systems, including control panels, cannot
be completely immune to direct or indirect lightning
strikes; however, some proven installation practices
might greatly reduce the risk of undesirable affects.
2.2 Precautions during Installation
To minimize the risk of undesirable effects from
lightning strikes on high risk installations that use a
point-bus technology:
• Do not run wiring outside the building.
• If you must install the unit in a metal building,
keep the wiring at least 0.61 m (2 ft) away from
external metal surfaces.
• Earth ground the unit correctly. Do not use an
electrical ground or telephone ground.
• Avoid running wires near telephone, data, or
power lines inside a building. Historical evidence
shows that locating control panel wiring at least
0.61 m (2 ft) away from telephone, data, or power
lines is successful at minimizing lightning
damage. When your data lines must cross the
path of AC or other wiring, cross the lines
perpendicularly.
- D9412GV2 1
- D7412GV2 1
- Trademarks 2
- Certifications and Approvals 2
- Listings and Approvals 2
- Federal Communications 2
- Commission (FCC) Rules 2
- Contents 4
- 1.0 Introduction 7
- 2.0 Lightning Strikes 8
- 3.0 Overview 9
- 3.2 Accessories 10
- 4.0 Installation 15
- 4.5 Connecting Earth Ground 16
- Reset Pin 18
- Disable All Except Battery 18
- Charging And Programming 18
- 4.9 Testing the System 19
- 4.10 Service Walk Test 20
- 5.0 Power Supply 23
- LEDs Off When Normal 26
- Charging Status 26
- Low Battery 26
- 6.0 Power Outputs 28
- 1.4 A − NSC current 29
- Alarm current 29
- 7.1 Registration 30
- 7.2 Notification 30
- 7.3 Location 30
- Phone Cord Length 33
- D161 2.4 m (8 ft) 33
- D162 61 cm (2 ft) 33
- 8.2 Point Sensor Loops 35
- 8.3 Point Parameters 35
- 8.4 Point Response Time 36
- Using the Rothenbuhler 36
- 0.64 mm (1/4 in.) 37
- RED ORG WHT BL K 38
- 9.0 Off-Board Points 39
- Modules 40
- D9127U/TD9127U/T 41
- D9127U/T 41
- 23451 678 46
- S3 Option 49
- NOT USED 50
- NEX POWER + 50
- COMMON 23 50
- COM IN OUT+12V 51
- 9.5 Testing Off-Board Points 52
- 10.0 Off-Board Relays 53
- 1 2 3 4 567 8 54
- 11.0 Arming Devices 58
- 11.4 Keyswitch 60
- 12.0 SDI Devices 62
- 12.5 SDI Address 80 63
- 12.6 SDI Address 88 64
- 13.1 Programmer Connector 66
- 13.3 Accessory Connector 66
- A.1 D9412GV2 Control Panel 69
- Point 1 Point 2 70
- Point 3 Point 4 70
- Point 5 Point 6 70
- Point 7 Point 8 70
- A.2 D7412GV2 Control Panel 72
- Specifications 77
- Bosch Security Systems, Inc 78
- 130 Perinton Parkway 78
- Fairport, NY 14450-9199 78
- D1255/D1255B 79
- 1.0 Description 80
- 2.0 Digital Keypad 81
- 3.0 Installation 82
- 4.0 Specifications 83
- Bosch Security Systems 86
- DS1101i/1102i/1108i 87
- Glass Breakage Detectors 87
- Alarm/Test LED 88
- 48781-01 91
- PIR Signal 92
- Intrusion Detector 93
- Installationsanleitungen 96
- 㹿ࡼ㑶㒓⌟఼ᖂ 100
- ⊶ܹ։⌟఼ᅝ㺙䇈ᯢ 100
- Installation Instructions 101
- 6.0 LED Operation 102
- 9.0 Supervision Features 103
- 11.0 Coverage Pattern 104
- 10.0 Other Information 104
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