TECHNICAL REFERENCE MANUAL Dyvi 2.0.7.2
Processing Module Installation and Cabling 37
Network Cabling Examples
One Single Processing Module (Topology: none)
In this topology the 100 GigE connectors are not used at all.
Two Processing Modules, stacked local (Topology: Direct-2)
In the topology Direct-2, two Processing Modules are connected with one
QSFP28 to QSFP28 cable.
There is one link between the two A ports.
Depending on the required cable length, it could be a Twinax passive
cable or a QSFP28 optical module solution.
Figure: Direct-2 cabling scheme
Figure: QSFP28 Twinax cable
Three Processing Modules, stacked local (Topology: Direct-3)
In the topology Direct-3, three Processing Modules are connected with
three QSFP28 to QSFP28 cables.
The cabling depends on the Processing Modules Device-IDs and must
match exactly as outlined in the drawing.
Depending on the required cable length, it could be a Twinax passive
cable or a QSFP28 optical module solution.
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