Cisco SCH-VDS-I Reference Manual page 8

Prerequisites and Requirements
Wireless Network Limitations
Many Wi-Fi Access Points handle Multicasts (Wi-Fi simultaneously sent to multiple devices, for
example, when the Cisco Video Door Station broadcasts video to all stations) by slowing down
transmission speed to the 1 Mb basic rate. This can cause overall Wi-Fi congestion in the Wi-Fi network
during the broadcast. Video intercom response times and images may degrade at each device.
If a residence requires a large number of Wi-Fi video intercom devices, ensure that you have a robust
Wi-Fi network (possibly consisting of multiple access points).
Wi-Fi Considerations
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Power Options
Do not attempt to use PoE, AC, and DC power at the same time. Choose only one power option.
Caution
The Cisco Video Door Station can be powered using one of the following options:
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Cisco Smart+Connected Video Door Station Reference Guide
8
Wi-Fi requires an antenna (sold separately). See the
Ensure that the antenna's tip does not touch the Cisco Video Door Station's Back Box metal when
threaded through the Back Box hole or any other metal surfaces. See the
Antennas" section on page
Check the signal strength after you wire the Video Door Station but before securing the device in
the wall. You can do that at the driver's Properties page in Composer Pro. See the
User Guide for details.
Wireless-N is recommended for video intercom. See the
page 8. Although this device supports b/g/n, 802.11 b is not recommended or supported for video
intercom.
Power over Ethernet (PoE)—The Ethernet network connection for the Cisco Video Door Station is
provided through the PoE Injector. No additional wiring is needed.
AC or DC—Used to power the Cisco Video Door Station when using an Ethernet (not PoE) or Wi-Fi
network connection.
Ethernet cable. Install the ferrite clamp on the Ethernet cable inside the Back Box.
Note
"Accessories" section on page
27.
"Installing the Wi-Fi
"Wireless Network Limitations" section on
4.
Composer Pro
OL-27367-01