F220 Series Detectors with | Install the Bases en 19 |
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The alarm loop relay (Form A, Terminals 1 and 2) and the power supervision relay (Terminal 3 and 4) are rated for 0.5 A at 120 VAC/DC for resistive loads.
! | CAUTION! Do not connect relays to inductive or | |
capacitive loads. Use with resistive loads only. | ||
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3.5.2 Wire D275 Power Supervision Module
When a D275 Module is used with 24 VDC systems, connect the yellow wire to the output terminal (b1 or b2). The red wire remains unconnected (refer to Figure 3.5 on page 19).
| 1 |
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3 | 2 | D275 |
2 |
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| 4 | +12 VDC |
7 | 5 | +24 VDC |
| 6 | Common |
1. | EOL resistor (refer to the |
| to Terminal 1 on the last |
| control panel’s |
| base on the loop. |
| installation instructions | 4. | Red wire is not used. |
| for specifications). | 5. | Yellow wire to Terminal b1 |
2. | The positive (+) and |
| on last base on loop for |
| negative |
| 24 VDC systems. |
| (blue) from the D275. | 6. | Black wire (common) to |
3. | Connect the positive (+) |
| Terminal a1/a2 on last |
| IDC wire through the EOL |
| base on loop. |
| resistor to Terminal 2 and | 7. | Power loop |
| the negative |
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Fig. 3.5 Wiring a D275 Power Supervision Module as a Loop Terminator
Bosch Security Systems, Inc. | Installation Manual | F.01U.029.847 |