Bosch D621, D621W, D621B Specifications
Intrusion Alarm Systems | D621 Series LED Keypads
D621 Series LED Keypads
www.boschsecurity.com
u Light emitting diode (LED) system status indicator
u 19 keys, including three programmable emergency
keys
u Sounder that emits eight warning tones
Each D621 Series Keypad model is low-profile,
surface-mountable, and compatible with D6412 and
D4412 Control Panels. Each keypad model has an
illuminated keypad, system status indicators, three
programmable emergency keys, and a sounder that
emits eight warning tones.
Functions
Display
Each D621 Series Keypad model has four LEDs:
Status, Cmd, All, and Part.
Keys
Each D621 Series Keypad model has a total of 19 keys
for specific functions. Use the 10 numeric keys, the
[CMD] key, and the [*] key for entering passcodes,
issuing commands, and choosing the next display. Use
the [ALL ON], [PART ON], or [NO DELAY] keys to arm
your system. Use the [BYPASS] key to bypass points.
Your installing company can program the [A], [B], and
[C] keys with functions such as Emergency, Fire, or
Panic. When pressed, each key emits a muted beep.
Audible Tones
The sounder emits eight warning tones:
• Fire Alarm: Indicates a fire event. Evacuate occupants
and investigate for smoke or fire.
• Burglary Alarm: Indicates a burglary event.
• Trouble: Indicates that a system component requires
attention, such as a broken wire or a low battery.
• Exit Delay: Indicates that the system is on and you
must exit the area within the time limit to avoid an
alarm condition.
• Entry Delay: Indicates that the system is on and you
must turn off the system within the time limit to avoid
an alarm condition.
• Error: Indicates an invalid keypad entry.
• OK: Indicates a valid keypad entry.
• Watch: Indicates that a watch point is open or
faulted. The tone continues until the watch point is
closed.
Certifications and approvals
ANSI/SIA D621 and D621W comply with
ANSI/SIA CP-01-2000, SIA False
Alarm Reduction
Region Certification
USA UL D621 and D621W: AMCX: Central Sta-
tion Alarm Units (UL1610, UL1635),
AMTB: Control Panels, SIA False Alarm
Reduction, AOTX: Local Alarm Units
(UL464, UL609), APAW: Police Station
Alarm Units (UL365, UL464), APOU:
Proprietary Alarm Units (UL1076),
NBSX: Household Burglar Alarm System
Units (UL1023), UTOU: Control Units
and Accessories - Household System
Type (UL985)
UL D621B: AMCX: Central Station Alarm
Units (UL1610, UL1635), AOTX: Local
Alarm Units (UL464, UL609), APAW:
Police Station Alarm Units (UL365,
UL464), APOU: Proprietary Alarm Units
(UL1076), NBSX: Household Burglar
Alarm System Units (UL1023), UTOU:
Control Units and Accessories - Household System Type (UL985)
CSFM 7167-1615: 0183 CONTROL UNIT
(HOUSEHOLD) [D621, D621W]
Installation/configuration notes
Compatibility Information
Control Panels D6412 and D4412
Mounting Considerations
• Do not mount any of the D621 Series Keypad models
in a location exposed to direct sunlight. Direct
sunlight can interfere with visibility and damage
internal components.
• Do not mount any of the D621 Series Keypad models
in locations with temperatures that drop below or
exceed the operating temperature range.
Power Supplies
A compatible control panel supplies the power and
data requirements to a D621 Series Keypad model
through a four-wire connection.
Wiring Considerations
Recommended wiring length is 305 m (1000 ft) with
0.8 mm (22 AWG), or 610 m (2000 ft) with 1.2 mm (18
AWG). Each D621 Series Keypad model includes a
wiring assembly of four color-coded flying leads and
one female four-pin connector.
Technical specifications
Environmental Considerations
Relative Humidity: 5% to 85% at +30°C (+86°F), non-
condensing
Temperature (Operating): 0°C to +50°C (+32°F to +122°F)
Keypad
Dimensions for D621 and
D621W:
11.7 cm x 21 cm x 2 cm
(4.6 in. x 8.2 in. x 0.8 in.)
Dimensions for D621B: 12.6 cm x 20 cm x 3.2 cm
(5 in. x 8 in. x 1.3 in.)
Weight for All Models: 439 g (15.5 oz)
Material for All Models: CHI MEI POLYLAC® PA-757 ABS with UV
Stabilizer UL94-HB Fire Rated
Connections: 4-wire flying lead for data and power
Indicators: Illuminated keys
Warning and indicating tones
LEDs for Status, Cmd, All, and Part
Power Requirements
Voltage (Operating): 12 VDC nominal, supplied from control
panel auxiliary power supply
Current: Maximum 115 mA
Normal 35 mA
Standby 35 mA
Trademarks
POLYLAC® is a registered trademark of CHI MEI Industrial Corporation,
LTD.
Plexiglas® is a registered trademark of Arkema.
Ordering information
D621 LED Keypad
Off-white classic case.
Order number D621
D621W LED Keypad
White classic case.
Order number D621W
D621B LED Keypad
White and gray modern case.
Order number D621B
Accessories
D54B Brass Flush‑mount Kit
Back box and polished brass faceplate.
Order number D54B
D54C Stainless Steel Flush‑mount Kit
Back box and stainless steel faceplate.
Order number D54C
D55 Keypad Desk Stand
Portable desk stand in smoke colored Plexiglas.
Order number D55
D56 Surface Mount Conduit Box
White surface mount box.
Order number D56
D56R Red Surface Mount Conduit Box
Red surface mount box.
Order number D56R
2 | D621 Series LED Keypads
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