Ampac EV3000 - Audio Input Connections

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EV3000 INSTALLATION & COMMISSIONING
10.2 Common FACP Input Connections
Some EV3000 systems are fitted with a Common FACP input. Connection for the FACP input is
provided on an 302 5860 Line Isolation Board. The 302 4940 board is not fitted when a Common
FACP input is used.
Connections
Field Connection
TB1 - Line FACP input
Factory Connection
TB1 - EAID MECP EAID
(Terminated in 10KΩ if unused)
Figure 19: Common FACP Board
10.3 SECP MIC, BGM And SECP OIS Handset Input Connections
The 302-4990 is the field connection board for the Remote Microphones, BGM and the SECP OIS
Handset Audio inputs. Each board will terminate four balanced audio inputs.
Note: Audio cable must be screened twisted 2 pair.
10.3.1 Connections
Field Connections
Use
TB1 - L1, E, L2
Balanced Input No 1
TB3 - L1, E, L2
Balanced input No 2
TB7 - L1, E, L2
Balanced Input No 3
TB8 - L1, E, L2
Balanced Input No 4
The balanced audio line terminates to L1 and L2. E is the screen.
Factory Connections
Use
TB2 - 1, 2
Earth
TB6 - 1, 2
Balanced Line to Mixer Board
TB4 - 1, 2
Balanced Line to Mixer Board
TB5 - 1, 2
Balanced Line to Mixer Board
TB9 - 1, 2
Balanced Line to Mixer Board
EARTH
OUTPUT4
L1 E L2L2EL1
OUTPUT3OUTPUT2
L1 E L2L2EL1
OUTPUT1
302-4990
TB9
T4
TB8
TB7
T3
TB5
TB4
T2
TB3
TB2
TB1
T1
TB6
Figure 20: 302 4990 Audio Connection Board
302 5860
EAID EIAD LINE LINE
MOV4 MOV3
MOV2
MOV1
TB1
CN1
L2 L1