RadioFrame Networks Inc DH2 User Manual
RadioFrame System
Appendixes
RFN_3.1 Beta
147
Appendix C NCU and ACU Main Rack Installation
The RadioFrame System NCU and one ACU are mounted in the main rack prior
to shipment to the site. Complete the following three procedures to install the
NCU and main rack ACU:
to shipment to the site. Complete the following three procedures to install the
NCU and main rack ACU:
•
Mount the NCU in the Main Rack
•
Mount the ACU in the Main Rack
•
Connect the NCU to the ACUs
Mount the NCU in the Main Rack
The NCU is the main controller of the RadioFrame System. The NCU is mounted
in the main rack supplied with –48VDC power.
in the main rack supplied with –48VDC power.
1 Find these items in the NCU shipping container: one NCU, four mounting
screws, one coaxial cable with two male BNC connectors for connecting to
the iSC, and one set of product documentation.
the iSC, and one set of product documentation.
2 Mount the NCU only in an EIA-standard compliant (19”) rack using all 4
screws provided. Refer to the site documentation for the exact location of the
NCU. For safe operation, follow these guidelines:
NCU. For safe operation, follow these guidelines:
•
Do not mount the NCU in any orientation other than that specified in the
following illustration.
following illustration.
•
Mount the NCU so that both the front and the back are accessible.
•
If the mounting holes do not line up, adjust the NCU up or down until the
mounting holes line up.
mounting holes line up.
•
Caution
Do not block the air vents on the sides or rear of the NCU.
3 Plug the NCU into main rack power source (rectifier or PDU).
4 Verify that the NCU is receiving power and that each NCU card is
operational.
Each card installed in the front and back of the NCU has two LEDs: Power
and Status. All LEDs should light green.
and Status. All LEDs should light green.
Note
The Status LED on the top card in the front of the NCU will remain red until the
NCU is connected to a timing source.
NCU is connected to a timing source.