GAI-Tronics DSA-201 Посібник користувача - Сторінка 6

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DSA-201 R

ODEL

EMOTE

Field Wire Installation

1. Unfasten the front panel assembly and disconnect both LEDs from the 69829-10x Speaker Amplifier

PCBA located in the rear enclosure.

2. Pull all wiring into the termination enclosure. Remove the 69829-10x Speaker Amplifier PCBA if

necessary. The use of ferrules is recommended on the ends of stranded wire to create a secure, reliable

connection.

3. Install all connections as indicated below. Refer to Figure 5 for the location of the PCBA components

wiring details and Figure 6 for the wiring details of the typical system configuration.

: USA

OTE

AND

ANADA

Association (CSA 22.1), and local codes for the specific requirements regarding your installation. Install all

equipment without modification and according to the local and national codes. Install conduit and seals

where required. Class 2 circuit wiring must be performed in accordance with NEC 725.55.

Power

This assembly operates from a 24 V ac or dc power source. A separate power feed is recommended for

each remote amplifier. Terminal block TB8 is provided for connection of power to the station. Also, the

enclosure must be connected to earth ground. Install a ring lug on the ground conductor prior to connection

to the enclosure. Secure the ring lug to the #6 ground screw on the rear enclosure.

Audio Input /Output

Terminal block TB6 has been provided to terminate the audio input line to this amplifier. An additional

terminal block TB7 has been provided to feed the next amplifier in the chain, if applicable. The connection

is not polarity sensitive.

Speaker

Terminal block TB5 has been provided to terminate the speaker or horn. The connection is not p

Audio Adjustments

Volume Control

Potentiometer R38 has been provided for volume control. To increase the volume to the speaker, rotate

R38 clockwise. To decrease the volume to the speaker, rotate R38 counterclockwise.

Gain Adjustment

This amplifier assembly contains four user adjustable gain settings:

•

0 dB

•

6 dB

•

12 dB

•

24 dB

These settings enable the user to control the maximum gain of the amplifier. The 24-dB setting provides

the maximum gain from the amplifier and the 0-dB setting enables the minimum gain. Configuration

jumpers P9 and P6 have been supplied to set the gain. Refer to Table 1 for the desired gain settings.

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PEAKER

MPLIFIER

- Consult the National Electrical Code (NFPA 70), Canadian Standards

Pub.: 42004-452A

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