GAI-Tronics DSA-101 Remote Speaker Amplifier - Manual (Page 5)

Pub.: 42004-384C
M ODEL DSA-101 R EMOTE S PEAKER A MPLIFIER Page 4 of 10
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Mounting
The mounting and wiring instructions are as follows:
1. Remove the four tamper-resistant screws from the front of the intercom station, and separate the front
panel from the rear enclosure. Place the front panel and the screws in a safe location.
2. Secure the rear enclosure to the mounting surface using the four 0.28-inch mounting holes provided
along with four ¼-inch diameter bolts of the appropriate length for the mounting surface.
3. Install the field wiring according to the instructions provided on page 4.
4. Adjust the audio levels as described on page 5.
5. Complete the installation by reattaching the front panel assembly to the rear enclosure using the four
tamper-resistant screws and a toque setting of 30 in-lbs. or 35 cm-kg.
N OTE : When using the GAI-Tronics Model 231 Pole Mounting Kit, follow the mounting instructions
provided in the kit.
Conduit Installation
Metal Conduit Installation Details
To prevent moisture from entering the enclosure, we strongly recommend the following:
• Conduit should enter the enclosure from the bottom.
• Silicone sealant or equivalent should be applied around and inside all conduit entries.
Field Wire Installation
Unfasten the front panel assembly and disconnect both LEDs from the 69829-00x Speaker Amplifier PCBA
located in the rear enclosure. Pull all wiring into the termination enclosure. Remove the 69829-00x
Speaker Amplifier PCBA, if necessary. The use of ferrules is recommended on the ends of stranded wire to
create a secure, reliable connection. Install all connections as indicated below. Refer to Figure 3 for the
location of the PCBA components wiring details and Figure 4 for the wiring details of the typical system
configuration.
USA AND C ANADA - Consult the National Electrical Code (NFPA 70), Canadian Standards 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.
Speaker
Terminal block TB5 has been provided to terminate the speaker or horn.