Cascading Hubs
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UDM-0808-SIG, UDM-RX02N and UDM-ABB-8-SIG Operation /Reference Guide
Configuring the Source Hub
In a cascaded Hub installation, the first UDM-0808-SIG Hub in the chain must be configured as the "Source"
Hub. Subsequent downstream Hubs must in turn be configured as "Target" hubs, and should follow a top
(Source) to bottom (Target #1, Target #2, Target #3) configuration.
"MMON" Send Command
Use the "’MMON’" Send Command to configure a Hub as the Source Hub in a Cascaded system:
Syntax:
SEND_COMMAND <DEV>,"'MMON'"
Example:
SEND_COMMAND dvUDM,"'MMON'"
Sets this Hub to Source Hub mode.
FIG. 72
Four cascaded UDM-0808-SIG Hubs
Source Hub
Target Hub #1
CASCADE OUT 5-8 on Source Hub
to
CASCADE IN 5-8 on Target Hub #1
CASCADE OUT 1-4 on Source Hub
to
CASCADE IN 1-4 on Target Hub #1
CASCADE OUT 5-8 on Target Hub #1
to
CASCADE IN 5-8 on Target Hub #2
CASCADE OUT 1-4 on Target Hub #1
to
CASCADE IN 1-4 on Target Hub #2
Target Hub #1
Target Hub #2
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
Target Hub #3
CASCADE OUT 5-8 on Target Hub #2
to
CASCADE IN 5-8 on Target Hub #3
CASCADE OUT 1-4 on Target Hub #2
to
CASCADE IN 1-4 on Target Hub #3
Analog audio is converted to digital audio before being sent to the UDM-RX02N
receivers. The required digital audio clock data is retrieved from the Cascade out
ports.
