System Management
218
Basic System Configuration Guide
3HE 11010 AAAC TQZZA Edition: 01
On the 7705 SAR-M (all variants), all RJ-45 Ethernet ports and SFP ports support
synchronous Ethernet and can supply a timing reference to be used as a source of
node synchronization. On the 7705 SAR-M (variants with T1/E1 ports), two T1/E1
ports can supply a timing reference. When installed on 7705 SAR-M variants with
module slots, the 2-port 10GigE (Ethernet) module or 6-port SAR-M Ethernet module
can supply two timing references.
On the 7705 SAR-H and 7705 SAR-Hc, all RJ-45 Ethernet ports and SFP ports
support synchronous Ethernet and can supply a timing reference to be used as a
source of node synchronization. When the 4-port T1/E1 and RS-232 Combination
module is installed in the 7705 SAR-H, a single T1/E1 port on the module can supply
a timing reference; it can be independently configured for loop-timing or node-timing.
When the GPS Receiver module is installed in the 7705 SAR-H, the GPS RF port
can be used as a source of node synchronization. All ports on the 4-port SAR-H Fast
Ethernet module support synchronous Ethernet and can supply a timing reference to
be used as a source of node synchronization.
On the 7705 SAR-A (both variants), all synchronous Ethernet ports can supply a
timing reference to be used as a source of node synchronization. Synchronous
Ethernet is supported on the XOR ports (1 to 4), configured as either RJ-45 ports or
SFP ports. Synchronous Ethernet is also supported on SFP ports 5 to 8. Ports 9 to
12 do not support synchronous Ethernet (except when 10/100/1000BaseT copper
SFP is used) and, therefore, cannot be used as a timing reference. On the
7705 SAR-A variant with T1/E1 ports, two T1/E1 ports can also supply a timing
reference.
On the 7705 SAR-Ax, all Ethernet ports support synchronous Ethernet and IEEE
1588v2 PTP and can supply a timing reference to be used as a source of node
synchronization. The 7705 SAR-Ax can also derive its timing from a GPS antenna
signal using the GNSS RF port.
On the 7705 SAR-W and 7705 SAR-Wx, all RJ-45 Ethernet ports and SFP ports
support synchronous Ethernet and IEEE 1588v2 PTP, and can supply a timing
reference to be used as a source of node synchronization. For 7705 SAR-Wx
variants with a GPS RF port, the GPS RF port can be used as a source of node
synchronization.
On the 7705 SAR-X, all Ethernet ports support synchronous Ethernet and IEEE
1588v2 PTP. Ethernet ports and T1/E1 ports can supply two timing references to be
used as a source of node synchronization. In addition, each T1/E1 port can be
independently configured for loop timing.
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