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Network design help: Upgrade fiber connections to gigabit

We will be moving our office to another building on the same complex but leaving all servers, etc in the old building. We already have an old fiber connection between the two buildings as some computer users have always been there. They can connect to our servers but its a bit of a slow connection. In some places we are still using 10Mb hubs!
We have 2 D-Link Switches with fiber modules in them, DES-102F with SC type connectors. This fiber link runs under the car park so I would like to avoid running any more cables and prefer to use the fiber if possible.
To improve perfomance for the users who will be moving to the new building I would at least like to upgrade the connection between the buildings to gigabit.
Is this possible using the existing fiber or will these have to be upgraded?
If it cant be used will a standard CAT5 cable between 2 gigabit switches (two cables for redundancy) be good enough for approx 95 PC's in one building to connect to 7 servers in another building? The CAT5 cable would be no longer than 150 metres.
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PVUK

8/22/2022 - Mon
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atlas_shuddered

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PVUK

I have already looked at replacing all our current hubs and switches with the Linksys 10/100 switch which has 4 gigabit ports (SRW224G4).
I also found a media convertor from TrendNet to convert the existing (and working) fiber to gigabit. This would then be routed to the gigabit ports on the switches and each switch will be daisy chained to each other via a CAT5 cable in the gigabit ports.

We dont want to convert every PC/Laptop, etc to gigabit speeds as the need is nowhere near enough to warrant it but I want to make sure the backbone connecting each office is up to the job and leaves room for upgrading in the future.
Press2Esc

Sounds like your near successful completion on you network backbone upgrade....  I would add, if any of your servers is a source for bottleneck in the new network, I would recommend upgrading the server NIC to gigabit.

Finally, dont forget to add a repeater for the CAT5 drops that extend beyond the 100M limit.  Your whole network will likely suffer as a result of the errors recieved from these long runs...

P2E
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ASKER
PVUK

Thanks everyone.
Your help has saved me hundreds of hours of internet surfing.
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