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P/N 387463-

EN • REV 005 • ISS 18MAR19

 

 

3 / 4 

Figure 4: Backup amplifier wiring 

 

Notes 

1

.

 

All wiring is supervised and power

-

limited.

 

2

.

 

Backup amplifier must be rated greater than or equal to the other amplifiers to which it is connected and must be installed in the same 

enclosure.

 

3

.

 

Backup amplifier wiring must be rated greater than or equal to the field wiring used on amplifiers connected to the backup amplifier.

 

Figure 5: Typical wiring connecting to SIGA-AAxx audio amplifier 

 

Notes 

1

.

 

Configure the zone audio amplifiers for 25 VRMS

 

2

.

 

A maximum of 16 SIGA

-

AAxx audio amplifiers may be connected to the output

 

of a single zone audio amplifier

 

3

.

 

Shield required when the audio riser wiring shares the same conduit as the telephone riser

 

 

Summary of Contents for Edwards 3-ZA20A

Page 1: ...lass B 24 VDC outputs 3 ZA40B 40 watt zoned amplifier Class B audio Class B 24 VDC outputs Installation Install and wire this device in accordance with applicable national and local codes ordinances and regulations Caution Operating the amplifier at an output greater than that required by the speaker may overdrive the speaker circuit and result in damage to the equipment To install the amplifier 1...

Page 2: ...it supervision The polarity reverses in an alarm condition 4 Shield required when audio riser and telephone riser share the same conduit 5 Twisted pair not required only when audio circuit riser shares conduit exclusively with 24 VDC riser or in conduit by itself 6 A maximum of 10 Signature Series CC1 or CC2 modules may be installed on the speaker circuit 7 For maximum wire resistance refer to the...

Page 3: ...closure 3 Backup amplifier wiring must be rated greater than or equal to the field wiring used on amplifiers connected to the backup amplifier Figure 5 Typical wiring connecting to SIGA AAxx audio amplifier Notes 1 Configure the zone audio amplifiers for 25 VRMS 2 A maximum of 16 SIGA AAxx audio amplifiers may be connected to the output of a single zone audio amplifier 3 Shield required when the a...

Page 4: ...0A 40A 24 VDC NAC circuit Wiring Voltage Current EOL resistor Special applications Class B or Class A 24 VDC nominal 3 5 A 15 kΩ internal on 3 ZA20A 40A Refer to the panel compatibility list Wire size 12 to 18 AWG 4 0 to 1 0 mm Space requirements 1 rail space Operating environment Temperature Relative humidity 32 to 120 F 0 to 49 C 93 noncondensing 1 For Canadian installations 70 VRMS is nonpower ...

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