Instruction/ maintenance manual of the product 09-0487-002 3Com
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1 LinkBuilder FDDI Workgroup Hub User Guide Release Note LinkBuilder ® FDDI W orkgro up Hub User Guide Release Note Part No. 09-0487-002/October 1993 This release note to the 3Com ® LinkBuilder ® F.
2 LinkBuilder FDDI Workgroup Hub User Guide Release Note The system software has been preloaded into the hub management module flash memory. Downloading the image to the FDDI Workgroup Hub disrupts the ring.
3 LinkBuilder FDDI Workgroup Hub User Guide Release Note Removing modules from the hub with the power on will not damage the hardware. However, the software may not be able to distinguish between intentional removal and catastrophic failure of a media module.
4 LinkBuilder FDDI Workgroup Hub User Guide Release Note After flash memory has been verified, the status LED turns green when the system is fully initialized.
5 LinkBuilder FDDI Workgroup Hub User Guide Release Note Page A-7: Management Module Failure Error Code This a clarification of the management module failure error code.
6 LinkBuilder FDDI Workgroup Hub User Guide Release Note Page 2-21: Unshielded Twisted-Pair Cable Under the Unshielded Twisted-Pair Cable heading, the first paragraph now reads as follows: The standar.
7 LinkBuilder FDDI Workgroup Hub User Guide Release Note Replacing the Fuse If the hub’s LEDs are no longer lit, the unit may be disconnected from its AC power cord. If the power cord is securely connected but the LEDs are still not lit, the fuse probably needs to be replaced.
8 LinkBuilder FDDI Workgroup Hub User Guide Release Note 4. Remove the burned-out fuse by pulling it straight out of its socket, as shown in Figure 2. Figure 2. Removing the Fuse If you wish, you can store a spare fuse in the front section of the fuse-holder.
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If you have not bought 3Com 09-0487-002 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 09-0487-002 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 09-0487-002 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 09-0487-002 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 09-0487-002, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 09-0487-002.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 09-0487-002. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 09-0487-002 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center