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Installation
2.1.5 Audio Riser Wiring
The Audio Riser is an analog voice bus that carries the recorded voice messages from the display
board to the ECC-125DAs, or the voice messages generated from a system microphone to the ECC-
125DAs. The maximum resistance on the Audio Riser is 20Ω.
Connect the Audio Riser from TB22 on the main control board to the ECC-125DAs as shown in
Figure 2.6.
ECC-50/125DA Instruction Manual — P/N LS10027-000FL-E:D 5/21/2015
ECC-50/100
main control board
ECC-125DA
ECC-125DA
ECC-125DA
Figure 2.6 ECC-125DA Audio Riser Wiring
firealarmresources.com
ECC-125DA Remote Amplifier
To next
UL-listed 15KΩ
ELR at last panel
on Audio Riser
Supervised,
Power-limited
21
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