GE Security EST3 - Branch Speaker Wiring

Centralized audio applications
EST3 Installation and Service Manual 4.25
Branch speaker wiring
Signature modules are used to connect individual floor branch
speaker circuits to the main riser. Single channel branch speaker
circuits can be wired as Class A (Style Z) using the SIGA-UM
module. Class B (Style Y) circuit configuration can be
accomplished using either the SIGA-UM or SIGA-CC2 modules.
The branch speaker circuits of two channels can be wired as
Class B (style Y) circuits using the SIGA-CC2 module.
4
8
3
7
2
6
10
1
5
9
TB1TB2
TB3
- +
Style Y (Class B)
DATA OUT (+)
RISER OUT (-)
RISER IN (-)
RISER OUT (+)
RISER IN (+)
DATA IN (+)
DATA OUT (-)
DATA IN (-)
To Next Device
To Next Device or
URSM Suprvisory
Module
From Signature Controller
o
r
P
r
e
vi
o
u
s
D
e
vi
c
e
From ATP
UL/ULC Liste
d
47K EOL Ω
Typical
Speaker
Circuit:
[3bwire1.cdr]
Figure 4-16: Single channel Class B wiring, SIGA-CC1 Module
Typical
Speaker
Circuit:
UL/ULC
Listed
47K EOL
Ω
4
8
14
3
7
13
2
6
12
10
1
5
11
9
TB1
TB2
TB3
TB4
- +
Style Y (Class B)
DATA OUT (+)
CH1 (INPUT 1) RISER OUT (-)
CH1 (INPUT 1)
RISER IN (-)
CH2 (INPUT 2)
RISER IN (-)
CH2 (INPUT 2) RISER OUT (+)
CH1 (INPUT 1) RISER OUT (+)
CH1 (INPUT 1)
RISER IN (+)
CH2 (INPUT 2)
RISER IN (+)
CH2 (INPUT 2) RISER OUT (-)
DATA IN (+)
DATA OUT (-)DATA IN (-)
To Next Device
To Next Device or
URSM Supervisor
y
Module
To Next Device or
URSM Supervisor
y
Module
From Signature Controller
o
r
P
r
e
vi
o
u
s
D
e
vi
c
e
From ATP
From ATP
[3bwire2.cdr]
Figure 4-17: Two channel Class B wiring, SIGA-CC2 Module