193
UCP
-
3901
MV SDC
Chapter
User Manual
3 Position the new panel and secure it in place with the captive screw(s) at the bottom.
Removing a card
To remove a card
1 Open the front door of the frame.
2 Lift up the card ejector handle on the front of the card you want to remove, to lever the
connectors apart, and then use the handle to pull the card straight out of the modular
card slot.
3 Close the front door of the frame.
Installing a Card
See
Installation of the Rear Connector Panel and Card
Cooling Fan Operational Assessment
A cooling fan has moving parts that, over time, can wear out. In the final stages of fan wear
out, the fan makes a distinctive sound and it rotates at a slower speed, thereby reducing
airflow which undermines its ability to remove heat from the UCP
-
3901. Under this
condition, fan replacement is required.
Also, dust contained in the ambient air can accumulate on the fan and on surfaces around
the fan and heatsink, thereby reducing airflow, and preventing air from coming into direct
contact with the heatsink surfaces which undermines the ability to remove heat from the
UCP
-
3901. Under this condition, cleaning is necessary and fan replacement may be
required.
Some diagnostic procedures may interrupt normal system operation. Changing the
UCP
-
3901’s cooling fan will interrupt normal system operation. Down time can be
minimized by swapping in another known good UCP
-
3901 to restore system operation
quickly. Schedule these maintenance operations during off hours when the system is not in
use.
Diagnostics
The UCP
-
3901’s electronic circuitry generates heat that must be shed by forcing air to move
across heat-generating components. Reduced air flow or high ambient temperature results
in heat build-up within temperature-sensitive components within the UCP
-
3901. This can
cause unexpected behavior such as glitches or even a system freeze or shutdown. The
UCP
-
3901 self-diagnoses high temperature conditions by raising critical temperature and
fan alarms.
Critical temperature and fan alarms are reported through the following mechanisms:
• The fan and critical temperature alarms are reported in RollCall in the Alarms
Configuration panel. For this, the
Fan Status Check
alarm must be enabled. See
, on page 91 for more information.
Note:
The rear panel must be installed before the card. See
Summary of Contents for UCP-3901
Page 1: ...User Manual 13 03084 010 M00 AB 2020 10 27 UCP 3901 UNIFIED COMPUTE PROCESSOR FOR DENSITÉ ...
Page 18: ...18 Introduction Supported SFP28 Cartridges ...
Page 32: ...32 UCP 3901 Card Installation and Operation Remote control using RollCall ...
Page 36: ...36 Connections and Cabling Cabling to Support SMPTE ST 2022 7 with a UCP 3901 ...
Page 122: ...122 Essence Processing SDC SFP Configuration ...
Page 202: ...202 Maintenance Troubleshooting Keep Fiber Connections Clean ...