Data Sheet

simply by hearing its associated tone. The keypad
backlight illuminates when it emits an audible tone.
Users can use a passcode to silence the tone.
Status indicators
The status indicators on the keypad provide a quick
visual reference for system status.
The indicator lights when the system is ready to turn on (arm).
The indicator lights when the system is on (armed).
The indicator lights when there is a trouble condition.
The indicator lights when dangerous gases are present including
carbon monoxide (NFPA 720).
The indicator lights when the system has power.
Certifications and approvals
Region
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 Office of The State Fire Marshal
FCC Part 15 Class B
Canada ULC-ORD C1076 - Proprietary Burglar Alarm Units and
Systems
ICES-003 - Digital Apparatus
ULC S545 - Residential Fire Warning System Control
Units
Region Certification
USA CSFM see our website
Installation/configuration notes
Mounting considerations
Mount in indoor dry locations.
Power supply
A compatible control panel supplies the power and
data requirements to the keypad through a four-wire
connection.
Enclosure and wiring
The sliding self-locking enclosure has an integrated
bubble level and custom gap‑free, lift‑gate style
terminal blocks to make installation easier.
Parts included
Quant. Component
1 Keypad
1 Hardware pack
4 1k Ω EOL Resistors
1 Installation Guide
Technical specifications
Properties
Dimensions 6.2 in x 4.7 in x 1 in (158 mm x 120
mm x 26 mm)
Weight 11.3 oz (0.32 kg)
Material Acrylonitrile butadiene styrene (ABS)
Poly(methyl methacrylate) (PMMA)
Display window 2 line display
18 characters per line
Indicators Illuminated keys
Status indicators
Warning and indicating tones
Inputs 4 (four) 1k Ω supervised inputs
Environmental considerations
Relative humidity 5% to 93% at +32°C (+90°F) non-
condensing
Temperature (operating) 0°C to +50°C (+32°F to +122°F)
Mounting considerations Mount in dry indoor locations.
Power requirements
Current Standby:45 mA
Alarm: 85 mA
Voltage (input) 12 VDC nominal
Wiring
Terminal wire size 12 AWG to 22 AWG (2.0 mm to 0.65
mm)
SDI2 wiring Maximum distance – wire size
(unshielded wire only):
1000 ft (305 m) – 22 AWG (0.65 mm)
2 | B921C Two-line Capacitive Keypad with Inputs (SDI2)