Bosch F220 User Manual download pdf (Page 17)

F220 Series Detectors with F220-B6RS Bases Install the Bases | en 17

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

3.5 Wire Power Supervision Modules

3.5.1 Wire F220-B6E Power Supervision Base

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

1. Positive (+) and negative

(-) resettable auxiliary

power either in parallel

originating from the same

power supply or run from

separate power supplies.

2. Positive (+) and negative

(-) initiating device circuit

(IDC) from the control

panel or an existing

circuit.

3. Interconnection circuit

(connects Terminal 3 from

base to base) for up to five

bases on a common power

supply circuit. Each power

circuit must be terminated

with an F220-B6E Power

Supervision Base or a

D275 Power Supervision

Module.

4. When connecting a D275,

connect the positive (+)

wire to the yellow input

(24 VDC) and the negative

(-) wire to Common

(black). The red wire is

not used.

5. The blue wires from the

D275 Power Supervision

Module provide power

supervision.

6. An EOL resistor as

specified in the control

panel’s installation

instructions.

F ig. 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

NOTE! To ensure interconnected units can alarm, the line

load after the last detector must not exceed 10 mA.

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