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Summary of Contents for Bosch D278S
- Page 1 D278S/D298S Installation Guide Addressable Smoke Detector Base...
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Page 2: Terminal Connections
2. Route all system wiring to the D278S or D298S location. Connect the power loop to the control 3. Mount the D278S or D298S (refer to Item 1 in panel’s switched auxiliary power. If using a separate power supply, connect the Figure 1) using the two oblong mounting holes negative side to the control panel ground. - Page 3 D278S and D298S is determined by the maximum number of bases used and the maximum distance from the FACP to the most remote base. Refer to Table 1 for the number of D278S and D298S in a circuit and their corresponding wire gauges.
- Page 4 3 - Black wire Table 2: PAM-4 Relay Module Contact Wiring Wire Lead Color Description Positive Black Negative Yellow Normally closed Blue Common Orange Normally closed Contact descriptions are inactive, not energized. Bosch Security Systems, Inc. | 11/10 | F01U069160-11...
- Page 5 Figure 4: Address Switches 4.0 Base POPIT Addresses Each D278S and D298S has a specific address determined by setting the seven DIP switches located on the detector’s base. Refer to Figure 4. The base’s address does not depend on the base’s location in the circuit.
- Page 6 Reserved Bullet ( ) = ON Bosch Security Systems, Inc. | 11/10 | F01U069160-11...
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Page 7: Specifications
Auxiliary Power Voltage Range 9.6 VDC to 13.9 VDC 18.9 VDC to 28.0 VDC 18.9 VDC to 28.0 VDC 2.5 mA 2.0 mA 2.0 mA Idle Current Alarm Current 40 mA 18 mA 34 mA Bosch Security Systems, Inc. | 11/10 | F01U069160-11... - Page 8 Bosch Security Systems, Inc. 130 Perinton Parkway Fairport, NY, 14450 www.boschsecurity.com © Bosch Security Systems, Inc., 2010...