VIP-Series Voice Integration Package Installation/Operation Manual
3-20
53796
3.8.5
VBUS Wiring
The VBUS is an analog voice bus that carries the recorded voice messages from the VIP-
VCM to the VIP-50s, or the voice messages generated from a system microphone to the VIP-
50s. The maximum resistance on the VBUS is 20
Ω
.
Connect the VBUS from the VIP-VCM to the VIP-50s as shown in Figure 3-20.
Figure 3-20 VBUS Wiring
To Next VIP-50
UL Listed 15k
Ω
EOL (Model 7630)
VIP-VCM
VIP-50
VIP-50
Supervised
Power Limited
at Last panel
on the VBUS
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