Bosch Appliances 3.5Wire Power Supervision Modules, 3.5.1Wire F220-B6EPower Supervision Base

F220 Series Detectors with F220-B6RS BasesInstall the Bases en 17

1. Positive (+) and negative		Supervision Base or a
(-) resettable auxiliary		D275 Power Supervision
power either in parallel		Module.
originating from the same	4.	When connecting a D275,
power supply or run from		connect the positive (+)
separate power supplies.		wire to the yellow input
2. Positive (+) and negative		(24 VDC) and the negative
(-) initiating device circuit		(-) wire to Common
(IDC) from the control		(black). The red wire is
panel or an existing		not used.
circuit.	5.	The blue wires from the
3. Interconnection circuit		D275 Power Supervision
(connects Terminal 3 from		Module provide power
base to base) for up to five		supervision.
bases on a common power	6.	An EOL resistor as
supply circuit. Each power		specified in the control
circuit must be terminated		panel’s installation
with an F220-B6E Power		instructions.
Fig. 3.3 Interconnection Wiring
Wire Size		Wire Length
18 AWG (1.2 mm)		300 ft (91 m)
16 AWG (1.5 mm)		450 ft (137 m)
14 AWG (1.8 mm)		750 ft (229 m)

	Table 3.3 Maximum Distance from First to Last Interconnected Units
i	NOTE! To ensure interconnected units can alarm, the line
	load after the last detector must not exceed 10 mA.

3.5Wire Power Supervision Modules

3.5.1Wire F220-B6E Power Supervision Base

The F220-B6E base is wired as shown in Figure 3.4 on page 18.

Bosch Security Systems, Inc. Installation Manual F.01U.029.847 -01 2007.02