Pub. 42004-463C
VoIP Speaker Amplifier Interface
Page 7 of 13
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-463C.docx
03/20
Field Wiring
WARNING
—Do not apply power until all the connections are wired.
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. Class 2 circuit wiring must be performed in accordance
with the NEC
1.
Route the ac power, speaker, input/output, and Ethernet cable through conduit and into the enclosure.
Allow adequate cable length to access the terminal blocks.
2.
Secure loose cabling.
3.
Install all connections as indicated in the following subsections (see Table 1, Table 2, Figure 4, and
Figure 5 for wiring details).
Table 1. Recommended Cable
Cable Use
Recommended Size
Conductor Range
LAN
Category 5 or better UTP cable with an RJ45 connector
Power
two-conductor, No. 18 AWG is typical
No. 28–12 AWG
Speaker
two-conductor, twisted pair, No. 18 AWG is typical
No. 30–12 AWG
600-ohm audio
two-conductor, twisted pair, No. 22 AWG is typical
No. 28–20 AWG
Output contacts
two or three-conductor, No. 18 AWG is typical
No. 28–20 AWG
Table 2. Customer Terminations
Cable
Terminals
Function
LAN
RJ45 Jack (on VoIP PCBA)
Power
TB101-1
TB101-2
G
ROUND STUD
Hot
Neutral
Earth
Speaker
TB3-1
TB3-2
S
Speaker −
600-ohm audio
line out
TB1-1
TB1-8
Audio L2
Audio L1
Isolate relay
Opto-coupler
TB3-3
TB3-4
TB1-7
TB1-14
Out 1 C
Out 1 N.O.
Out 2 N.O.
Out 2 C
N
OTE
:
Out 1 and Out 2 are configurable for one of two modes of operation: Direct call or Multicast