Bosch D8125MUX Specsheet
Intrusion Alarm Systems | D8125MUX Multiplex Bus Interface
D8125MUX Multiplex Bus Interface
www.boschsecurity.com
u Multiplex bus controls two independent buses
u Aux Power terminals that can be used for remote
devices
u Programmed with D5060 Handheld Programmer
(not required for "i" class modules)
The D8125MUX Multiplex Bus Interface Module and
associated modules are used to expand the
compatible Bosch control panels beyond their
standard number of onboard initiating zones or points.
The D8125MUX module is installed in the control panel
enclosure, and is connected to either Zonex 1 or
Zonex 2 on the control panel where it scans the
multiplex (MUX) points connected to it and reports the
points’ status to the control panel. Point index
programming then determines if an action on the part
of the control panel is required (alarm response,
trouble response, and so on).
Functions
Two Independent Buses
The multiplex bus interface can control two
independent buses. A fault on one MUX bus does not
prevent the other from operating normally.
Aux Power Terminals
The D8125MUX has Aux Power terminals labeled
Power A (+,-) and Power B (+,-) that can be used for
remote devices that require an uninterrupted source
of power. Up to 200 mA are available at these
terminals.
u Operation monitoring LED
u Connect to Zonex 1 or Zonex 2
Notice
Observe correct polarity when connecting devices
to these power terminals.
D5060 Hand-held Programmer
Use the D5060 Multiplex Point Programmer to
program multiplex bus points. The D5060 is not
required when programming "i" class modules. In
addition to programming points, use the D5060 to
view the MUX device point number.
Certifications and approvals
Region Certification
USA UL 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) Refer to
D8125MUX Operation and Installation
Guide (P/N: 36796) for UL UOJZ: Control Units, System (UL864, 9th edition)
CSFM 7167-1615: 0100 CONTROL UNIT
(HOUSEHOLD)
CSFM 7165-1615: 0113 FIRE ALARM CON-
TROL UNIT (COMMERCIAL)
2 | D8125MUX Multiplex Bus Interface
Region Certification
CSFM 7167-1615:0243 7167 -- CONTROL
UNIT (HOUSEHOLD)
CSFM 7165-1615:0242 7165 -- FIRE ALARM
CONTROL UNIT (COMMERCIAL)
CSFM 7165-1615:0238 7165 -- FIRE ALARM
CONTROL UNIT (COMMERCIAL)
CSFM 7165-1615:0119 7165 -- FIRE ALARM
CONTROL UNIT (COMMERCIAL)
Installation/configuration notes
Compatible Control Panels
• B9512G/B9512G-E
• B8512G/B8512G-E
• D9412GV4/D7412GV4/D7212GV4
• D9412GV3/D7412GV3/D7212GV3
• D9412GV2/D7412GV2/D7212GV2
• D9412G/D7412G/D7212G
• D9124 Fire Alarm Control Panel
• FPD-7024 Fire Alarm Control Panel
Compatibility Multiplex Modules
• DS7432 Series Eight-input Remote Modules
• DS7457i Series Single-zone Input Modules
• DS7460i Dual-zone Input Module
• DS7461i Single-zone Input Module
• DS7465i Input-output Module
Compatible Programmers
• D5060 Multiplex Programmer
Wiring
Maximum Wire Impedance: 33 Ω
Distance (approximate) Size
610 m 0.8 mm
1524 m 1.2 mm
Use non-shielded wire for data loops. Do not exceed
75 mA on each MUX Bus output.
Parts included
Quantity Component
1 Multiplex Bus interface
1 Hardware pack
1 Literature pack
Technical specifications
Environmental Considerations
Relative Humidity: Up to 93%, non-condensing
Temperature (Operating): 0°C to +49°C (+32°F to +120°F)
Properties
Board Dimensions: 14 cm x 8.3 cm x 2.5 cm
(5.5 in. x 3.25 in. x 1.0 in.)
Power Requirements
Current: 128 mA maximum
Voltage: 12 VDC
Trademarks
All hardware and software product names used in this
document are likely to be registered trademarks and
must be treated accordingly.
Ordering information
D8125MUX Multiplex Bus Interface
Controls two independent buses.
Order number D8125MUX
2000 ft 22 AWG
5000 ft 18 AWG
Control Panel to D8125MUX Module Wiring
The recommended wiring from the control panel to the
module is quad (four-wire) cable. Do not use shielded
or twisted-pair cable. If used in fire applications,
18 AWG wire is required.
Maximum Impedance: 4.05 Ω at +20°C (+68°F) nominal
Distance (approximate) Size
76 m 0.65 mm
193 m 1.02 mm
250 ft 22 AWG
600 ft 18 AWG
Data Loop Wiring
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