22
Both switches should be configured to turn on Spanning Tree for
network redundancy and IGMP snooping for efficient multicast
operation If there is a router on the network, ensure that IGMP
snooping is enabled on each switch. If there is no router on the
network, you should also ensure IGMP querying is enabled on the
switch with the lowest IP address on the subnet.
Notice
The Network Switch card is an unmanaged switch, and does not support
multicast filtering. Any multicast traffic received on any port of this switch,
either from the Transmitter cards or from the network will be forwarded
to all other ports, reducing the total network bandwidth available on each
port correspondingly. It is recommended that the network ports of the
Network Switch Card are connected to switches that support multicast
filtering. This will limit the multicast traffic to each of the Transmitter and/or
Receiver cards to that transmitted or received by the cards themselves.
This maximizes the total available network bandwidth across the chassis
backplane.
Power Supply Redundancy
The 10-Channel Rack has two power supply connectors, which
enable it to accept dual redundant power supplies.
Power
Connectors
Jumpers
Power
Connector LEDs
Figure 7
Rack back panel showing power connectors and jumpers
This means that the unit can be connected to a second mains
power source, for example, an Uninterruptible Power Supply, to
ensure that power is delivered to the device at all times.
Please note the following:
