Author Topic: Teardown: CenterCOM MR128FT Micro Repeater  (Read 3733 times)

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Offline ElectroElvisTopic starter

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Teardown: CenterCOM MR128FT Micro Repeater
« on: January 10, 2012, 03:04:37 pm »
Well here is one piece of equipment that was laying in basement, It is micro repeater with optical TX/RX from Agilent.

Here are some pics of it.


Offline ElectroElvisTopic starter

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #1 on: January 10, 2012, 03:05:54 pm »
Sorry for bad pictures they were taken with GSM camera

Offline ipman

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #2 on: January 10, 2012, 05:03:58 pm »
That device seems to be a media convertor, not a repeater. And quite old one, according to size and components.
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Offline metalphreak

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #3 on: January 10, 2012, 09:47:04 pm »
10base-T is pretty ancient now  :P

Copper ethernet back then had a pretty limited range in terms of cable length. Even now I think its only ~350m max depending on specs. They'd use these at either end of a fibre link to connect equipment over longer distances. They sell similar ones now that do 100mbit, 1gbit, etc

http://www.dealextreme.com/p/10-100-1000mbps-ethernet-fiber-media-converter-transceiver-silver-105793
« Last Edit: January 10, 2012, 09:49:54 pm by metalphreak »
 

Offline FenderBender

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #4 on: January 10, 2012, 10:35:24 pm »
Well regardless of its antiquity and usefullness, looks like it was a decent piece of equipment. Parts seem prime spec. Looks nice.
 

Offline Wartex

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #5 on: January 11, 2012, 04:03:09 am »
10base-T is pretty ancient now  :P

Copper ethernet back then had a pretty limited range in terms of cable length. Even now I think its only ~350m max depending on specs. They'd use these at either end of a fibre link to connect equipment over longer distances. They sell similar ones now that do 100mbit, 1gbit, etc

http://www.dealextreme.com/p/10-100-1000mbps-ethernet-fiber-media-converter-transceiver-silver-105793

90m spec, 115m absolute max before degrading into lower category
 

Offline ipman

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Re: Teardown: CenterCOM MR128FT Micro Repeater
« Reply #6 on: January 11, 2012, 01:08:44 pm »
I work in telecom business and we call them "media converters", even back then.
A repeater is something which repeats signal over the same media, e.g. BNC to BNC, UTP to UTP, etc.
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