Juniper Networks G10 CMTS manual Cable an HFC Connector Module or SIM

Cable an HFC Connector Module or SIM

Cable an HFC Connector Module or SIM		•
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This section describes how to connect the four downstream and four upstream F-connector		•
ports of an HFC Connector Module or SIM. This section also describes how to connect the		•
two Fast Ethernet ports on an HFC Connector Module or SIM.		•
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	The following ports on the SIM are not used:
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	! Fast Ethernet ports Eth0-Band Eth1-B	•
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	! Upstream F-connectors US4 through US7	•
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	! Ports DSR-IN and DSR-OUT	•
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Cable the F-connector Ports		•
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	Prior to inserting a coaxial cable into any of the module	•
	F-connectors, ensure that the cable meets the	•
	requirements provided in “Coaxial Cable Requirements”	•
	on page 75.	•
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Each DOCSIS Module, and its corresponding rear HFC Connector Module or SIM, support a		•
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total of four downstream interfaces, where one interface is assigned to each physical
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downstream port. Each DOCSIS Module supports a total of 8 or 16 upstream interfaces
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(depending on the DOCSIS Module model), which can be allocated to any of the four physical
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upstream ports (US0 through US3). Figure 34 illustrates an example where the number of
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interfaces allocated on each port is five, three, seven, and one. You should consider the
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assignment of a node to a port and the allocation of upstream interfaces to upstream ports
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prior to connecting the coaxial cables from the cable plant to the HFC Connector Module or
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SIM.
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Figure 34: Example of Allocation of Multiple Interfaces Per Port		•
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Install the CMTS 109