Bosch D278S, D298M, D298S User Manual
Addressable Bases
D298M, D298S, D278S
en Installation Guide
Addressable Bases Table of Contents | 3
Table of contents
1
2
3
4
5
6
Notices 4
System overview 5
Mounting 6
Wiring 7
Addressing 11
Technical data 14
Bosch Security Systems, Inc.
Installation Guide 6.2012 | 01 | F01U268606
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4 | Notices Addressable Bases
1
Notices
Install, test, and maintain the D298M according to these instructions, NFPA 72 standards,
local codes, and the Authority Having Jurisdiction (AHJ) in your area.
Caution!
Failure to follow these instructions can cause the failure of the detector to indicate an alarm.
Bosch is not responsible for improperly installed, tested, or maintained detectors.
6.2012 | 01 | F01U268606 Installation Guide
Bosch Security Systems, Inc.
Addressable Bases System overview | en 5
2
System overview
These instructions cover installing the D298M (24 V), D298S (24 V), and D278S (12 V)
Addressable Bases in an addressable system controlled by a G Series control panel (D9412G/
D7412G or later) 12 V Fire Alarm Control Panel (FACP) with a D8125 POPEX Module and 24 V
auxiliary power1 provided by a UL 1481 regulated power‑limited power supply, or a D9124
24 V FACP.
The D298M base provides individual addresses on the FACP data expansion circuit and
accepts:
– D263 and D263TH Photoelectric Smoke Detectors
– D287 and D288 Smoke Detector Bases, with the following detectors:
– D285 and D285TH Photoelectric Smoke Detectors
– D286 Ionization Smoke Detector
– D603, D604, and D605 Heat Detectors
When used with the D285 Series Detectors, the D298M base indicates chamber check trouble
to the control panel through the POPIT bus. The chamber check trouble indication appears on
the control stations as a fire trouble.
The D298M base also provides connection points for supervised circuits with up to 19 twowire conventional detectors reporting to the D298M’s address. When the D298M base is
combined with a PAM‑4 Relay Module, one Form “C” output (normally open [NO]/common
[C]/ normally closed [NC]) provides auxiliary functions such as recalling an elevator or closing
fire doors.
The D298S and D278S bases have a built‑in POPIT to provide individual addresses on the
FACP data expansion circuit. These bases accept:
– D285 and D285TH Photoelectric Smoke Detectors
– D286 Ionization Smoke Detector
– D603, D604, and D605 Heat Detectors
1
Depending on the current requirements of the application for the D278S base, power can be
provided by the FACP or by a UL 1481 regulated power‑limited auxiliary power supply
Bosch Security Systems, Inc.
Installation Guide 6.2012 | 01 | F01U268606
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