Edwards Signaling ANSBKUP User Manual

Terminal

TS1

TS1

TS1

TS1

TB1

TB2

TB2

Jumper

J1

2

TB1

TS1

TB2

LED

1

2

3

4

J1

1

2

4

3

2 1

ANSBKUP Backup Amplifier Switcher
Installation Sheet

Product description

The ANSBKUP provides a means to switch to a backup
amplifier in the event of a primary amplifier failure. One backup
amplifier can serve as a backup for several primary amplifiers.

Amplifier outputs are connected at TB2, and speaker field
wiring at TB1. Supervisory and 24 Vdc power inputs are
provided at TS1. The LED activates when the backup amplifier
has been switched in.

All wiring is power-limited.

The ANSBKUP mounts on snap track, or using 5/8-inch nylon
standoffs.

The ANSBUKP is compatible with both 25 Vrms and 70 Vrms
audio signals.

Specifications

Voltage: 24 Vdc

Current

Standby: 40 mA
Active: 10 mA

Installation instructions

Figure 1: Terminal and jumper block positions

The ANSBUKP is mounted in the same cabinet that houses
the primary amplifier. It is designed to be mounted using
standard, 3-inch snap track material.

The board also has mounting holes at the corners for standoff
mounts where necessary. 5/8-inch nylon standoffs are

required.

Terminals and jumpers

Figure 1 shows the position of the terminal and jumper blocks
on the ANSBKUP. Table 1 describes the terminal assignments,
while Table 2 describes the jumper settings.

© 2013 UTC Fire & Security. All rights reserved. 1 / 2 P/N 3101188 • REV 02 • REB 28FEB13

Table 1: Terminal descriptions

Description

-1 Circuit negative

-2 V+ (24 Vdc)

-3 General purpose input

-4 V+ (24 Vdc)

-1 and 2 Audio output

-1 and 2 Audio input from backup amplifier

-3 and 4 Audio input from primary amplifier

Table 2: Jumper settings

Setting

With a jumper on J1-1 and 2, TS1-2 and TS1-4 are

internally connected. An external wire connecting TS1­and TS1-4 is not required.

Wiring diagram

(1) LED activates when backup audio is switched in.
(
(

(4) If the primary amplifier is an ANS25, ANS50, or ANS100, turn DIP

If the primary amplifier is an ANS25A, ANS50A, or ANS100A, turn
DIP switch SN1-5 ON.

Speaker

output

From primary amplifier

Input from primary
amplifier (TB1-5 and 6) (4)

Input from backup
amplifier (TB1-5 and 6)

TB2-10

TB3-7

TB2-1

TB1

TS1

TB2

LED (1)

1

2

3

4

J1

1

2

4

3

2 1

(2)

EOLR (3)

Figure 2: Typical wiring details

2) Install jumper J1 to eliminate TS1-2 to TS1-4 connection.

3) Backup amplifier EOLR is required at the ANSBKUP only.

switch SN2-5 ON.

2 / 2 P/N 3101188 • REV 02 • REB 28FEB13