7705 SAR Interfaces
34
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
All Gigabit Ethernet ports provide the same networking feature capability as the
8-port Gigabit Ethernet Adapter card. For frequency synchronization, synchronous
Ethernet and SSM are the mechanisms that are applied when using optical
1000Base-SX to connect to an MPR-e radio. When using electrical 1000Base-T to
connect the Packet Microwave Adapter card and an MPR-e radio, Proprietary Clock
Recovery (PCR) is used (a copper SFP is mandatory on ports 3 and 4).
3.1.3.1.7 4-port SAR-H Fast Ethernet Module
The 4-port SAR-H Fast Ethernet module has four RJ-45 Fast Ethernet ports
(10/100 Mb/s) on its faceplate. Any functionality supported on the 7705 SAR-H
Ethernet ports is also supported on the 4-port SAR-H Fast Ethernet module, with the
exception of hierarchical QoS (H-QoS) functionality and hybrid mode.
3.1.3.1.8 6-port SAR-M Ethernet Module
The 6-port SAR-M Ethernet module has six Ethernet ports:
• two SFP Fast Ethernet ports (10/100 Mb/s) (ports 1 and 2)
• two XOR (combination) SFP/RJ point five Gigabit Ethernet ports
(10/100/1000 Mb/s) (ports 3a/3b and 4a/4b)
• two PoE-capable RJ point five copper Gigabit Ethernet ports
(10/100/1000 Mb/s) (ports 5 and 6)
Ports 5 and 6 can each support Power over Ethernet (PoE). Port 5 can also support
PoE+, but if it is configured for PoE+, then port 6 cannot support PoE power.
Any functionality supported on the 7705 SAR-M Ethernet ports is also supported on
the 6-port SAR-M Ethernet module, with the exception of half-duplex mode (all ports)
and hybrid mode (Fast Ethernet ports only).
3.1.3.1.9 7705 SAR-A
The 7705 SAR-A has two variants with fixed physical configurations. One variant
supports both Ethernet and T1/E1 ports. The other variant supports only Ethernet
ports. Both variants of the 7705 SAR-A have 12 Ethernet ports:
• four XOR (combination) Gigabit Ethernet ports, either 10/100/1000Base-T
RJ-45 (ports 1A to 4A) or 100/1000 Mb/s SFP (ports 1B to 4B)
• four SFP Gigabit Ethernet ports (100/1000 Mb/s) (ports 5 to 8)
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