Re: Random shower thought: GBIC with LC connector...

[Warren Kumari <warren () kumari net>]

On Tue, Nov 15, 2022 at 12:55 PM, Eric Litvin <eric () lumaoptics net> wrote:

> Ahhhh, Gbics:
>
> If you google ws-g5483, 84, 86, 87 - you’ll see the whole line up. All had
> sc connectors except 83 which was copper rj45 connector.


Well, clearly that's not true.

As examples:
The Cisco GigaStack GBIC -
https://www.mtmnet.com/PDF_FILES/WS-X3500-XL_DataSheet.pdf - uses the 6 pin
IEEE1394 (Firewire) connector

1000Base-CX uses twinax shielded twisted pair and the "HSSDC" connector -
e.g: https://www.ebay.com/itm/372539150316

I've seen (but cannot find a photo at the moment) a DB-9 GBIC (to allow
connection to DB-9 fiber channel stuff)

Someone used to sell an HD-BNC GBIC  - basically the GBIC version of
https://www.bhphotovideo.com/c/product/1430372-REG/wohler_sfp_sdi_output_3g_sdi_transceiver_hd_bnc_connectors.html

I've also somewhere seen an "F-style" coax GBIC to allow reuse of
in-building coax - basically looked like a GBIC form factor version of
http://www.mdslink.com/magic-sfp/


W



> Sent from my iPhone
>
> On Nov 15, 2022, at 8:49 AM, Bjørn Mork <bjorn () mork no> wrote:
>
> Maybe you're thinking of X2, looking similar to GBIC but even bigger?
> There were converters taking 2 gig SFPs in one X2 slot.
>
> Don't think either GBIC to SFP or GBIC with LC makes much sense. The
> alternatives were dirt cheap and easily available by the time these could
> have been products.
>
> Bjørn
>
> Matt Erculiani <merculiani () gmail com> writes:
>
> I feel like I've seen GBIC sleeves that accept SFP modules very similar to
> QSFP+ CVRs, but I can't seem to find any evidence of these ever existing,
> so perhaps I'm misremembering.
>
> -Matt
>
> On Tue, Nov 15, 2022 at 9:23 AM Mel Beckman <mel () beckman org> wrote:
>
> Oh. And it’s not “OCD”. It’s “CDO”, with letters in ascending sequence. :)
>
> -mel via cell
>
> On Nov 15, 2022, at 8:18 AM, Mel Beckman <mel () beckman org> wrote:
>
> No. GBIC stands for Great Big Inserted Cartridge. LC stands for Little
>
> Connector. Thus they are not compatible.
>
> -mel via cell
>
> On Nov 15, 2022, at 7:59 AM, Warren Kumari <warren () kumari net> wrote:
>
> Hi there all,
>
> While looking through my big box of random optics I suddenly realized
>
> that I'd never seen a GBIC with an LC connector, and I started wondering
> if anyone else had / if such a thing actually exists.
>
> Yes, I realize that this would be a fairly niche device - if you
>
> arrived somewhere with a device that took GBICs and there was existing
> fiber with LC connectors you could just replace the patch cable or use an
> LC-SC convertor, but that doesn't really satisfy my curiosity.
>
> A quick look through the GBIC MSA / SFF documentation implies that such
>
> a thing *could* probably exist (there is a defined value for the 'LC'
> connector), but I wasn't able to actually find any. It might not actually
> be compliant with the specs (the document I found only lists SC fiber or
> copper (coax with BNC, TNC or DB-9?!)), but that doesn't mean that no-one
> made them.
>
> So, has anyone seen a regular (30mm/1.2") GBIC with LC connectors? And,
>
> if so, "pics or it didn't happen"... :-)
>
> Obviously I don't have an actual use for this, it's just to satisfy my
>
> (OCD) curiosity...
>
> W