Bosch B920 Installation Manual

1 | Overview

2.1 | Access the address switches

3 | Installation

The B920 keypad is an SDI2 bus compatible device. Each
keypad has an LCD display that shows two-line system
messages, and user adjustable options such as volume and
display brightness.
The keypad connects to the SDI2 bus on the control panel
using terminal wiring. You can connect more than one keypad
to the control panel by wiring them in parallel.
You can program, diagnose, and troubleshoot the system from
the control panel keypad as well as remotely through Remote
Programming Software (RPS).

1

10

5

7 7

6

1

2

3

6

4

1

R Y G B

2

10

5

9

10

8

3

5

6

Figure 1.1: Keypad base overview

Callout ― Description

1 ― Wall mount holes

2 ― Single gang box holes

3 ― Double gang box holes

4 ― Wire opening

5 ― Surface mount wire openings

6 ― Gang box holes (3-4 in)

7 ― Surface mount wire channel

8 ― Bubble level

9 ― SDI2 wiring terminal block

10 ― Wire tie posts

2 | SDI2 address switches

Two switches determine the address for the keypad. The control
panel uses the address for communications. Use a slotted

screwdriver to set the switches.

1. Unlock the keypad by turning the lock counter-clockwise.
Refer to Figure 2.1.

2. Hold the keypad by the base in one hand. With the other
hand, gently push down on the keypad to remove it from
the base. Refer to Figure 2.2.

3. Look at the back of the keypad, and locate the switches.
Refer to Figure 2.3

Figure 2.1: Unlocking the keypad

Figure 2.2: Removing the keypad from base

1

Figure 2.3: Switches location

Callout ― Description

1 ― Address switches

2.2 | Set the address switches

Set the address switches per the control panel confi guration.
If multiple SDI2 keypads reside on the same system, each
SDI2 keypad must have a unique address. For single-digit
addresses 1 through 9, set the tens switch to 0. Figure 2.4
shows the address switch setting for address 1.

After you set the address switches for the proper address,
mount the keypad base, wire to the control panel, and attach
the keypad to the base.

Caution!

Remove all power (AC and battery) before making any
connections. Failure to do so might result in personal
injury and/or equipment damage.

3.1 | Mount the keypad

You can surface mount the keypad, or mount it to standard
electrical boxes, including single gang boxes.

Mounting the keypad:

1. Use the base as a template to mark the desired mounting
surface. Refer to Figure 1.1 for mounting hole and wiring
locations.

2. Pull the wiring through the desired wire opening in the
base.

3. Use the appropriate mounting hardware (supplied) to
mount the base to the desired mounting surface. Refer

to Figure 1.1 for mounting hole and wiring locations

.

3.2 | Wire to the control panel

When you wire the keypad to a control panel, use the control
panel terminals labeled R, Y, G, B (PWR, A, B, COM). Connect
them to the keypad terminals labeled R, Y, G, B. Refer to
Figure 3.1.
You can connect keypads to the SDI2 data bus by parallel wire
run from the control panel to each keypad, wire from keypad to
keypad, or a combination of the two techniques. Refer to
Figure 3.2.

Figure 3.1: Wiring the keypad to the SDI2 bus connection

(B5512 shown)

Callout ― Description

1 ― Control panel

2 ― Terminal wiring

3 ― Keypad’s wiring terminal block

Figure 3.2: Installing multiple keypads using the SDI2 terminals

Reconnect the keypad to the base by sliding the keypad onto
the base (reverse of Step 2). The keypad automatically locks
onto the base. Apply power to the system.

4 | Display

You can adjust the keypad’s display brightness level, and you
can turn the keypad’s nightlight feature on or off.

Adjusting the keypad display brightness:

1. Press [MENU] to open the Main menu.

2. Use [NEXT] to go to the Press 5 for Settings Menu option,
or simply press [5].

3. Use [NEXT] to go to the Press 4 for Keypad Confi g option,
or simply press [4].

4. Press [1] to adjust the brightness.

5. Use [PREV] or [NEXT] to adjust the brightness level. The
changes apply immediately.

6. Press [ESC] to exit the menu.

Turning the keypad nightlight on or off (control panel version

2.1 or higher):

1. Press [MENU] to open the Main menu.

2. Use [NEXT] to go to the Press 5 for Settings Menu option,
or simply press [5].

3. Use [NEXT] to go to the Press 4 for Keypad Confi g option,
or simply press [4].

4. Use [NEXT] to go to the Press 4 for Nightlight option, or
simply press [4].

5. Use [PREV] or [NEXT] to toggle between the Yes and No
options.

6. Press [ENTER] while viewing the desired option to save the
programming.

7. Press [ESC] to exit the menu.

.

Figure 2.4: Address switches

5 | Status indicators

7 | Supervision

11 | Specifi cations

You can diagnose and troubleshoot the system using the

keypad’s status indicators. Refer to Table 5.1.

Status

Function LED On

indicator

Ready to turn on (arm)

Turned on (armed)

System trouble

GAS

Table 5.1: Keypad status indicators

Gas alarm

AC power present

6 | Audible tones

The keypad has a built-in speaker that produces several distinct
warning tones. The keypad backlight illuminates when it emits
an audible tone.

Tone Description

Fire alarm When an area is in fi re alarm, the keypad

emits a pulsed, high-pitched bell tone.

Gas alarm When a gas point activates, the keypad

emits a unique high pitched tone.

User alarm When a user alarm (such as panic and

medical alarms) occurs, the tone sounds
for the programmed amount of time.

Burglary alarm When an area is in alarm, the keypad

emits a steady, high pitched bell tone.

Entry delay The keypad emits an intermittent beep

tone during entry delay periods to remind
the user to disarm the area.

Exit delay The keypad emits an intermittent beep

tone during exit delay.

Invalid button
buzz

Keypress The keypad emits a muted beep tone as

Trouble When a trouble event occurs, such as a

Watch point
fault

Table 6.1: Keypad audible tones

When an invalid button, or sequence of
buttons, is pressed, the keypad emits a
fl at buzz tone.

each button is pressed to indicate that
the entry was accepted.

service alert, the keypad emits a two-tone
warble until you enter a programmed
passcode with the appropriate authority.

A single clean tweedle tone alerts the
user anytime a watch point is faulted.

The control panel supervises all keypads on the SDI2 bus.
If a supervised keypad fails to respond to the control panel,
the control panel declares a Missing Keypad Trouble. When
the control panel can again communicate with the keypad, it
restores the Missing Keypad Trouble.
During a Missing Keypad Trouble, any connected keypad that
maintained contact with the control panel shows the Missing
Keypad Trouble as its idle text, and shows the missing
keypad’s address. The communicating keypads also sound a
trouble tone. Users can silence the trouble tone. If no other
troubles exist, the tone silences when the missing keypad
restores.

8 | Show the fi rmware version

Showing the keypad fi rmware version:

1. Remove the keypad from the base to remove power to the
keypad. Refer to Figures 2.1 and 2.2.

2. Return the keypad to the base to restore power.

The keypad shows the
fi rmware version for 10 seconds.

NOTICE!

You can also view a keypad’s fi rmware version in RPS.

model number, keypad address, and

9 | Keypad cleaning

Use a soft cloth and non-abrasive cleaning solution to clean your
keypad (for example, microfi ber cloth and eyeglass cleaner).
Spray the cleaner onto the cloth. Do not spray cleaners directly
onto the keypad.

10 | Certifi cations

Region Certifi cation

US UL 365 - Police Station Connected Burglar Alarm

Units and Systems

UL 609 - Local Burglar Alarm Units and Systems

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 Offi ce of The State Fire
Marshal

FCC Part 15 Class B

CA Canada CAN/ULC S303 - Local Burglar Alarm

Units and Systems

CAN/ULC S304 - Signal Receiving Centre and
Premise Alarm Control Units

ULC-ORD C1023 - Household Burglar Alarm
System Units

ULC-ORD C1076 - Proprietary Burglar Alarm
Units and Systems

ICES-003 - Digital Apparatus

Dimensions 6.2 in x 4.7 in x 1 in (158 mm x

120 mm x 26 mm)

Voltage (input) 12 VDC nominal

Current 35 mA in standby mode

70 mA in alarm mode

Operating temperature 0°C to +50°C (+32°F to +122°F)

Relative humidity 5% to 93% at +32°C (+90°F)

non-condensing

Terminal wire size 12 AWG to 22 AWG (2 mm to 65

mm)

SDI2 wiring Maximum distance - wire size

(unshielded wire only):
1000 ft (305 m) - 22 AWG (0.65
mm)

Compatibility B9512G/B9512G-E

B8512G/B8512G-E
B5512
B4512
B3512
D9412GV4 version 2.0 and
higher
D7412GV4 version 2.0 and
higher
(Refer to the control panel
installation document for
number of supported devices.)

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/.

Two-line Alphanumeric Keypad

B920

en Installation Guide

Bosch Security Systems, Inc.

130 Perinton Parkway
Fairport, NY 14450
USA

www.boschsecurity.com

© 2015 Bosch Security Systems, Inc. F.01U.265.450 | 04 | 2015.02