Chapter 7
Table 7.3 Fans Not Working/Overheating
Step | Action | If Result of Action is Yes… | If Result of Action is No… |
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1 | Check Fan Rotation. Inspect | Check that the unit has been | Possible break in the DC supply |
| the fans located at the sides of | installed with sufficient space | from the PSU module to the |
| the enclosure. Are the fans | allowed for | suspect fan(s). Call a Service |
| rotating? Check the | Chapter 2, Installing the | Engineer. |
| temperature (select Chassis / | Equipment). If the ambient air is |
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| Temperature Alarms on the | too hot, additional cooling may |
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| Device Info web page). | be required. |
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7.4.8Input Card Failure
Use Table 7.4 to aid in diagnosing a input card fault.
Table 7.4 Input Card
Step | Action | If Result of Action is Yes… | If Result of Action is No… |
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1 | Check the status of the | If the unit indicates a critical | If no modulator failure alarm is |
| Input Card. Is there a | failure, call a Service Engineer. | shown, go to Step 2. |
| modulator failure alarm being |
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| shown on the Status web |
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| page? |
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2 | Check the status of the | Discuss the perceived problem | If the port is not providing a valid |
| input ports. Do the ports | with Ericsson Customer | input when it has been enabled, |
| reflect the reported status? | Support. | call a Service Engineer. |
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7.5Disposal
7.5.1Moulded Plugs
If the moulded plug fitted to the mains cable supplied with this equipment is not required, use another cable. If the supplied plug is to be changed, cut it off and dispose of it safely.
Warning!
If the molded plug fitted to the mains cable supplied with this equipment is not required, please cut it off and dispose of it safely. Failure to do this may endanger life as live ends may be exposed if the removed plug is inserted into a mains outlet.
EN/LZT 790 0005 R1A |