Bosch EA102A-304 Installation Manual

EA102A-304

Installation Instructions

Receiver

EA102A-304 | Installation Instructions |

1.0 Specifications

EN | 2

1.0 Specifications

Table 1: Specifications

Enclosure

Temperature Range

Power

RF Input Frequency

Signal Strength

Antenna Type Compatibility

Available in indoor and weatherproof outdoor enclosure

-40°C to +65°C (-40°F to +149°F)

12 VDC, 25 mA typical, 55 mA with horn sounding

304.000 MHz

Measured in 255 steps

Diversity antennas SE2x-304 Series and SE4x-304 Series

Transmitters; EA500B Transponder with a ROM version 4.00 or greater

Note:

The EA102A-304 is compatible only with other “-304” equipment (such as the SE2x-304 and SE4x-304).

Do not

install this unit in conjunction with an EA500B Transponder with a ROM version earlier than 4.00.

2.0 Mounting

Choose a mounting location based on the previous site survey. Mount the receiver as close as possible to the location found with the test receiver. Use the following sections as a guideline for receiver mounting and spacing.

2.1 Indoor Receiver Installation

Receiver Spacing: Receiver spacing should be no more than 24.4 m (80 ft.) between receivers for standard construction. Range depends on the construction of the building. For example, a building with hollow drywall walls may support 24.4 m (80 ft.) spacing, but a building with steel reinforced concrete may require reduced spacing. It is very important to maintain a consistent spacing as this ensures optimum signal locating. The better the receivers can detect a transmitted signal, the more accurate the locating.

Mounting Height: Mound receivers 1.5 m to 1.8 m (5 ft. to 6 ft.) from the floor. Maintain a consistent mounting height to ensure optimum signal locating. Do not place receivers close to the ceiling. This places them closer to the floor above reducing the floor-to-floor location accuracy. It is also helpful to place the receivers somewhat higher on the top floor to be covered and somewhat lower on the bottom floor to be covered.

Multi-Floor Installations: Mount receivers over one another in multi-floor installations. This helps maintain proper floor-to-floor reception (see Figure 1).

Figure 1: Receiver Locations

x = Receiver location inside building

Select a mounting location that:

• provides a clear line-of-sight of the protected area, if possible.

• is at least 31 cm (1 ft.) away from metal objects such as HVAC ducts.

• is on an inside wall, if possible.

• is 1.5 m to 1.8 m (5 ft. to 6 ft.) from the floor.

• is not at a barrier where it is important to resolve which side an alarm location is on.

• is not damaged by tampering or opening doors.

2.2 Outdoor Receiver Installation

Receiver Spacing: Mount receivers every 91.5 m (300 ft.). It is very important to maintain spacing as consistent as possible to ensure optimum signal locating. The more the receivers can detect a transmitted signal, the more accurate the locating. Make sure each receiver has a clear line-of-sight of the intended protection area.

Mounting Height: Mount receivers 3 m (10 ft.) above grade. Maintain a mounting height that is as consistent as possible to ensure optimum signal locating.

Bosch Security Systems | 6/03 | 37247D

EA102A-304 | Installation Instructions |

BUS

POWER

–

3.0 Wiring

EN | 3

Overhangs/Eaves: Receiver locations should be below building overhangs and eaves. Most transmissions occur 1 m (a few feet) above grade. Therefore, mounting above overhangs and eaves can result in inaccurate signal locating. Be especially careful around metal roofs as these can block the signal.

Select a mounting location that:

• provides a clear line-of-sight of the protected area.

• is away from metallic objects such as chain-link fences and electrical transformers. If coverage is required near such items, perform testing near them to determine the potential need for additional receivers.

• is 3 m (10 ft.) above grade.

• is not at a barrier where it is important to resolve which side an alarm location is on.

• is easy to service.

• is not damaged by tampering.

3.0 Wiring

Apply power only after all connections are made and inspected.

3.1 EA102A-304 Layout

Figure 3: EA120A-304 Layout

Connect wiring as shown in Figure 2.

Figure 2: Multiplex Loop Wiring

BUS 0

PWR 0

–+–+

1 - Transponder 2 - Typical receiver 3 - To next device

1 - Left antenna 4 - Address 2 - Right antenna 5 - Jumpers 3 - Tamper 6 - To transponder signal bus

–

BUS

–

POWER

Bosch Security Systems | 6/03 | 37247D

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