D9412GV4/D7412GV4 v2.03 | Installation and System Reference Guide | 13.0 SDI2 Devices
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Bosch Security Systems, Inc. | 7/16 | F01U265457-09 72
13.0 SDI2 Devices
13.1 Description
D9412GV4/D7412GV4 v2.03 Control Panels
can support a number of accessory devices
from the SDI2 Bus using Terminals 33 through
36. Some devices include the B208 Octo-input
Module, the B308 Octo-output Module, and the
B810 wireless receiver.
For UL 864 Commercial Fire
applications, refer to Installing
Combination Fire and Intrusion Alarm
Systems in the Approved Applications
chapter found in this guide for
important information about
combination fire and intrusion
systems.
13.2 Installation
For complete installation instructions, consult
the operation and installation guide for the
specific SDI2 device. SDI2 devices connect to
the control panel in parallel (Table 25).
These devices can share power with the
control panel or be powered by a stand-alone
power source.
Table 25: SDI2 Device Connections
Terminal Function Wire Color Function
36 POWER + Red +12.0 VDC
35 DATA BUS 1 Yellow Data
34 DATA BUS B Green Data
33 COMMON Black Common
A stand-alone power supply powering
the SDI2 device must also be
connected to a common terminal on
the control panel.
Do not connect the earth ground for
the stand-alone power supply to
Terminal 10 on the control panel.
13.2.1 Open Wire Trouble on SDI2
D9412GV4/D7412GV4 v2.03 Control Panels
can detect an open wire fault in the data
communication lines of the SDI2 bus. Any open
wire on terminals 34 or 35 result in a system
fault trouble display on all keypads
, and a
general SDI Trouble event sent to the central
station
13.3 B208 Octo-input Module
The Octo-input module is an 8 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's expansion points work the same as
the points on the control panel.
Review the information in Section 6.0 Power
Outputs on page 34 to ensure that there is
enough power for the B208 and other powered
devices you want connected to the system.
On the D9412GV4 control panel, you can add
up to 24 Octo-input modules. On the
D7412GV4 control panel, you can add up to 7
Octo-input modules.
The B208 Octo-input Modules connect to the
SDI2 bus on the control panel using Terminals
33 through 36, or using the SDI2 interconnect
wiring connector. You can connect more than
one module to the control panel by wiring
them in parallel. Refer to the B208 Installation
and Operation Guide (P/N: F01U265456) for
wiring instructions.
13.3.1 Address Settings
The control panel reads address
switch setting changes on power up.
If you change the switches after
installation and applying power to the
control panel, you must cycle the
power to the control panel.
The B208 address switches provide a tens and
a ones setting for the module’s address. For
single-digit address numbers 0-9, set the tens
switch to 0 and the ones digit to the
appropriate number. Refer to Figure 29 below.
Figure 29: B208 Switches Set to Address 9
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