External Connection Units
The NCS 2015 external connection unit (ECU) is a replaceable module that provides interfaces for passive
device inventory and management, multishelf management, and element management. The ECU module
available for the NCS 2015 shelf is NCS2015-ECU and is installed in slot 18 of the NCS 2015 shelf.
The ECU contains RJ-45 and SFP interfaces or multishelf and element management. Fourteen USB ports
connect to passive devices, two of which are USB 3.0 ports. A backup flash memory is fitted into the ECU
to support the database (DB) and image backup in the operation of the NCS 2015.
The ECU contains two LEDs that indicate the link and activity status of the optical EMS SFP port.
Table 20: ECU LED Status Indicator Lights
DescriptionColorLED Name
The LED is on when there is a link
connection; otherwise, the LED is
off.
GreenLink Speed
The LED is flashing when there is
activity on the link; otherwise, the
LED is off.
YellowActivity
The following figure shows the NCS 2015 ECU connectors.
Figure 221: Connectors on the NCS 2015 ECU Faceplate
USB 3.0 ports (Ports 13
and 14)
2USB 2.0 ports (Ports 1
through 12)
1
MSM port ( RJ-45 port)4VOIP/UDC ports ( RJ-45
port)
3
MSM ports (SFP ports)6EMS port (SFP port)5
The following table lists the external connections present on the NCS 2015 ECU :
Cisco NCS 2000 Series Hardware Installation Guide
382
Installing the Cisco NCS 2015 Door and Other Modules
External Connection Units
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