7750 SR-a Module LEDs and Connectors
144 7750 SR-a4 and SR-a8 Installation Guide
6 Mgmt Port The 10/100/1000Base-T Ethernet Management port has an RJ-45 copper
Ethernet connector used for system configuration and monitoring.
Autonegotiation is supported. Refer to Management Port Pinouts on page
215 for pinout assignments.
Lnk The Lnk (link) LED is located in the bottom left corner of the port.
Green: Port speed is 100 Mb/s
Amber: Port speed 10 Mb/s
Blinking: Duplex operation enabled
Solid: Simplex operation enabled
Unlit: The Ethernet link has no activity, or is down or disabled.
Act The Act (activity) LED is located in the bottom right corner of the port.
Green: There is Rx/Tx activity
Amber: An error condition exists
Unlit: There is no communications link, or the link is operationally down
or disabled or shut down.
7 BITS Port The BITS port is provisioned with an RJ-45 jack and used for the
network clock source. Refer to BITS Port on page 216 for pinout
assignments.
Lnk Green (solid): Sync-if-timing is configured and a clock signal is
received.
Amber (solid): Sync-if-timing is configured and no clock signal is
received.
Notes: Make sure to use shielded cable when connecting to the BITS
port.
8SyncE/
1588
Port The SyncE/1588 port is provisioned with an RJ-45 connector. The
Sync-E/1588 port is reserved for future use.
Table 58: 7750 SR-a CPM-a Connector and LED Descriptions (Continued)
Key Label/Part Sub-
category
Description
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