Control Panels Off-board points | en 57
Bosch Security Systems, Inc. Installation Manual 2018.07 | 16 | F.01U.287.180
13 Off-board points
The control panel supports off-board points using the B208.
13.1 B208 octo-input module
The B208 is an eight point expansion device that connects to the control panel through the
SDI2 bus. This module is supervised and communicates back to the control panel all point
status changes. The module points work in the same way as the points on the control panel.
The control panels provide up to the following number of modules:
– B6512. 9
– B5512. 4
– B4512. 2
– B3512. Not supported
The module connects to the SDI2 bus on control panel using SDI2 terminals, or using the SDI2
interconnect wiring connector. You can connect more than one module to the control panel by
wiring them in series.
Notice!
UL commercial fire and intrusion devices
Do not connect fire and non-fire devices to the same B308.
For detailed instructions, refer to the corresponding document listed in Related
documentation, page 12.
13.1.1 SDI2 address settings
Notice!
The module reads the address switch setting only during module power up. If you change the
setting after you apply power to the module, you must cycle the power to the module in order
for the new setting to take effect.
If multiple B208 modules reside on the same system, each B208 module must have a unique
address.
The control panel model determines the number of points allowed and the valid addresses.
For valid point and address numbers, refer to B208 address settings, page 130.
13.1.2 Supervision
The control panel automatically enables supervision of B208 on the SDI2 bus when an
associated point has its source programmed for Octo-input.
With any failure to receive an expected response from the module, all keypads show a system
fault. The control panel sends a module trouble report to the central station (if configured for
module trouble reports).
13.1.3 Installation and control panel wiring (B208)
Calculate power consumption
Make sure that there is enough power for the module and the other powered devices that you
want to connect to the system.
Refer to On-board outputs, page 49.
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