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3.4 | Sensor loop wiring
Wire resistance on each sensor loop must be less than 100
Ω with the detection devices connected. The terminal strip
supports 12 to 22 AWG (0.65 to 2 mm) wires.
The B208 detects open, short, normal, and ground fault circuit
conditions on its sensor loops and transmits the conditions to
the control panel. Each sensor loop is assigned a point number
and transmits to the control panel individually. Run wires
away from the premises telephone and AC wiring. For the
1 kΩ dual EOL resistor circuit style order ICP-1K22AWG-10, a
package of 10 1.0 kΩ EOL resistors.
NC
Point
NO
1.0 kΩ
COM
5
2
3
1
NC
4
Point
1.0 kΩ
1.0 kΩ
COM
Figure 3.5: Sensor loop wiring single (upper) and dual (lower)
Callout ― Description
1 ― Point sensor loop terminals
2 ― Normally closed device (contact)
3 ― 1 kΩ resistor at device
4 ― 1 kΩ resistor at end-of-line (EOL)
5 ― Normally open device (contact)
Dual EOL requires B208 firmware v1.05.001 or higher. Dual
EOL meets the requirement of double protection for medium to
high risk ULC installations.
4 | LED descriptions
The module includes one blue heartbeat LED to indicate
that the module has power and to indicate the module's
current state. Refer to Table 4.1.
Flash Pattern Function
Flashes once
Normal state: Indicates normal operation
every 1 sec
state.
3 quick flashes
Communication error state: Indicates
every 1 sec
(the module is in a "no communication
state") resulting in an SDI2
communication error.
ON Steady
LED trouble state: Module is not
powered (for OFF Steady only), or some
other trouble condition prohibits the
OFF Steady
module from controlling the heartbeat
LED.
Table 4.1: LED descriptions
Copyright
This document is the intellectual property of Bosch Security Systems, Inc. and is protected by copyright. All rights reserved.
Trademarks
All hardware and software product names used in this document are likely to be registered trademarks and must be treated accordingly.
Bosch Security Systems, Inc. product manufacturing dates
Use the serial number located on the product label and refer to the Bosch Security Systems, Inc. website at http://www.boschsecurity.com/datecodes/.
5 | Show the firmware version
To show the firmware version using an LED flash pattern:
- If the optional tamper switch is installed:
With the enclosure door open, activate the tamper switch
(push and release the switch).
- If the optional tamper switch is NOT installed:
Momentarily short the tamper pins.
Refer to Figure 5.1 for an example of flash pattern
s.
Figure 5.1: Firmware LED flash patterns
When the tamper switch is activated, the heartbeat LED
stays OFF for 3 seconds before indicating the firmware
version. The LED pulses the major, minor, and micro digits of
the firmware version, with a 1 second pause after each digit.
In the following example, the version 1.4.3 shows as LED
flashes:
[3 second pause] *___****___*** [3 second pause, then
normal operation].
6 | Certifications
Region
USA
UL 365 - Police Station Connected Burglar Alarm
Units and Systems
UL 609 - Local Burglar Alarm Units and Systems
UL 636 - Holdup Alarm Units and Systems
UL 864 - Control Units and Accessories for Fire
Alarm Systems (Commercial Fire)
UL 985 - Household Fire Warning System Units
UL 1023 - Household Burglar Alarm System
Units
UL 1076 - Proprietary Burglar Alarm Units and
Systems
UL 1610 - Central Station Burglar Alarm Units
CSFM - California Office of The State Fire Mar-
shall
FCC Part 15 Class B
FDNY - Fire Department of New York
FM 3010 - Fire Alarm Signaling Systems
Canada
CAN/ULC S303 - Local Burglar Alarm Units and
Systems
CAN/ULC S304 - Signal Receiving Centre and
Premise
ICES-003 - Information Technology Equipment
(ITE)
ULC-ORD C1023 - Household Burglar Alarm
System Units
ULC-ORD C1076 - Proprietary Burglar Alarm
Units and System
7 | Specifications
Dimensions
2.5 in x 3.8 in x 0.60 in
(63.75 mm x 96 mm x 15.25 mm)
Voltage
12 V nominal
(operating)
Current
35 mA
(maximum)
Operating
+32°F to +122°F (0°C to +50°C)
temperature
Relative
5% to 93% at +90°F (+32°C) non-
humidity
condensing
Loop inputs
Up to eight inputs. Input contacts may be
Normally Open (NO) or Normally Closed
(NC).
NOTICE! Normally Closed (NC) is not
permitted in Fire installations.
Loop End-of-
1 kΩ, 2 kΩ, No EOL (Dual 1 kΩ + 1 kΩ)
Line (EOL)
resistance
Loop wiring
100 Ω maximum
resistance
Loop states
Short: 0 - 1.1 VDC
(Single EOL
Normal: 1.25 - 1.9 VDC
resistor
Open: 2.25 - 5 VDC
circuit style)
Terminal
12 AWG to 22 AWG (2 mm to 0.65 mm)
wire size
SDI2 wiring
Maximum distance - Wire size (Unshielded
wire only):
1000 ft (305 m) - 22 AWG (0.65 mm)
1000 ft (305 m) - 18 AWG (1.02 mm)
Compatibility B9512G/B9512G-E
B8512G/B8512G-E
B6512
B5512/B5512E
B4512/B4512E
D9412GV4
D7412GV4
D7212GV4
(Refer to the control panel installation
document for number of supported
devices.)
8 | Point number examples
For B208 address 01 the point numbers for the input devices are
11 through 18:
Terminal no
1
2
3
4
5
6
7
Input no
11
12
13
14
15
16
17
For B208 address 11 the point numbers for the input devices are
111 through 118:
Terminal no 1
2
3
4
5
6
7
Input no
111
112 113 114 115
116 117 118
Octo-input Module
B208
en Installation Guide
8
Bosch Security Systems, Inc.
Bosch Sicherheitssysteme GmbH
18
130 Perinton Parkway
Robert-Bosch-Ring 5
Fairport, NY 14450
85630 Grasbrunn
USA
Germany
www.boschsecurity.com
8
© 2016 Bosch Security Systems, Inc.
F.01U.265.456 | 06 | 2016.05
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