Table 12: RJ-45 PoE Port Features
(Continued)
Feature
Description
Port numbering (software)
•
ACX500 indoor:
ge-0/1/0
,
ge-0/1/1
, and
ge-0/1/2
•
ACX500 outdoor with PoE:
ge-0/1/0
,
ge-0/1/1
, and
ge-0/1/2
Clocking Ports on ACX500 Routers
The clocking ports distribute a synchronized clock signal throughout the router by locking onto a clock
signal originating from an internal clock source or by connecting to an external clock source.
The reference clock inputs can be Ethernet recovered clocks, IEEE 1588v2 recovered clocks, or xDSL
NTU-R timing clocks. Externally available reference clocks are 1 pulse per second (PPS). The one
SubMiniature B (SMB, 1 PPS output) connectors on the front panel of the router connect to external
clock signal sources. The clocking ports provide the synchronized output clocks from any one of the
above reference inputs based on the clock’s priority.
Internal clock sources within the ACX500 routers include:
• 1 PPS SMB connectors (one output)
• Time of day (TOD) RJ-45 port (supports RS-422)
• Synchronous Ethernet support on RJ-45 and SFP ports as timing input or output
• Packet timing (IEEE 1588v2) includes:
• Timing input when configured as ordinary clock (OC) or boundary clock (BC)
• Timing output when configured as BC
SEE ALSO
External Clocking Ports Specifications on ACX500 Routers | 106
Connecting the ACX500 Router to External Clocking Devices | 179
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