B820 Sdi2 Inovonics Interface Module; Supervision; Wireless Receiver Faults; Wireless Repeater Faults - Bosch D9412GV4 Installation And System Reference Manual

D9412GV4/D7412GV4 v2.03 | Installation and System Reference Guide | 13.0 SDI2 Devices
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repeater also reports AC status, battery status,
and tamper input status. Each of these
conditions has a corresponding system fault
display at the keypads, and generates a
module-specific fault event that the control
panel sends to the central station.
13.10 B820 SDI2 Inovonics Interface
Module
The B820 SDI2 Inovonics Interface Module
allows a control panel to interface with an
Inovonics EN4200 EchoStream Serial Receiver
through the SDI2 bus. You can add up to 1
B820 module to a control panel.
The address switch determines the address for
the B820 module. The control panel requires
the module's address for communications. The
B820 address switches provide a single-digit
setting for the module's address. The module
uses addresses 1 through 4. Addresses 0 and 5
through 9 are invalid. When connected to a
D9412GV4/D7412GV4 v2.03 Control Panel,
only addresses 1 and 2 are valid. Refer to
Figure 36.
Figure 36: B820 Switch Set to Address 1
13.10.1

Supervision

Supervision of a B820 SDI2 Inovonics Interface
Module is enabled automatically when at least
one RF device is enrolled. Available RF devices
on D9412GV4/D7412GV4 v2.03 Control Panels
are RF Repeaters, wireless points, or user key
fobs. Any failure to receive an expected
response from an SDI2 module results in a
system fault display on all keypads and an SDI
Fault event sent to the central station.
13.10.2

Wireless Receiver Faults

The B820 SDI2 Inovonics Interface Module
detects and reports ambient Radio Frequency
(RF) interference as a system fault indicated as
a jamming condition. This fault is accompanied
by an RF Interference event sent to the central
station.
Bosch Security Systems, Inc. | 7/16 | F01U265457-09
The tamper input on the B820 module can, if
enabled, create a system fault at the keypads.
The B820 module can also generate a general
trouble system fault. This fault indicates a non-
recoverable problem has occurred that
requires servicing. The trouble system fault
and module tamper system fault are reported
as a module specific SDI Fault to the central
station.
13.10.3

Wireless Repeater Faults

Each wireless repeater within range of the
B820 SDI2 Inovonics Interface Module can
report its AC status, battery status, and tamper
input status. Each of these conditions has a
corresponding system fault display at the
keypads, and generates a module-specific SDI
Fault event that is sent to the central station.

13.11 B915 Basic Keypad

The B915 Basic Keypad is an SDI2 bus
compatible device. It offers the same
commands and menu structure as the other B
Series keypads. Refer to the Basic Keypad
(B915) Installation Guide for wiring
instructions.
13.12 B920 Two-line Alphanumeric
Keypad
The B920 is an SDI2 bus compatible. The
display shows two lines, 18 characters per line.
Each keypad has 10 number keys and seven
function keys. Refer to the Two-line
Alphanumeric Keypad (B920) Installation Guide
for wiring instructions.
13.13 B921C Two-line Capacitive
Keypad with Inputs
The B921C is an SDI2 bus compatible device.
The keypad features capacitive keys. The
keypad 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. Refer to the Two-line
Capacitive Keypad (B921C) Installation Guide
(P/N: F01U285416) for wiring instructions.
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