Pinout Assignments
7705 SAR-A Chassis Installation Guide 127
Ethernet Ports
The 7705 SAR-A supports 12 data plane Ethernet ports:
• Ports 1 to 8 are Gigabit Ethernet with the following connectors:
→ ports 1 to 4 can use either an RJ-45 connector or an SFP connector (RJ-45 for
ports 1A to 4A and SFPs for ports 1B to 4B; the connector type for each port can
be configured independently using the CLI but you actually have to physically
connect to either the RJ-45 port or the SFP port)
→ ports 5 to 8 are SFP ports
• Ports 9 to 12 are Fast Ethernet (10/100 speed) and use an RJ-45 connector
Use CAT5e (Gigabit Ethernet) shielded cables to attach customer equipment to the
7705 SAR-A RJ-45 Ethernet ports. Shielded cable must be used to maintain EMC
compliance.
Figure 32 shows the pin numbering for the Ethernet ports that use an RJ-45 connector.
Figure 32: Ethernet Port RJ-45 Connector Pin Numbers
2 NC — Not connected
3 PPS_OUT_N Output 1 Pulse per Second Out – negative
4 NC — Not connected
5 NC — Not connected
6 PPS_OUT_P Output 1 Pulse per Second Out – positive
7 TOD_OUT_N Output Time of Day Out – negative
8 TOD_OUT_P Output Time of Day Out – positive
Table 31: ToD Port Pinouts—RJ-45 Female (Continued)
Pin Signal Direction Description
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