Re: Sun external SMD cables
On 2/15/20 12:35 AM, jim stephens via cctech wrote: On 2/14/2020 11:11 PM, Alan Perry via cctech wrote: On 2/14/20 1:54 PM, jim stephens via cctech wrote: On 2/14/2020 6:09 AM, Alan Perry via cctalk wrote: On Feb 14, 2020, at 04:15, Liam Proven via cctalk wrote: On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk wrote: I supplied part numbers. How can I be more specific? Oddly, some of us do not have a mental look-up table of Sun part numbers. In fact I think I can safely say that I could not identify a single cable of any form for any machine ever made by its part number. If you can, good for you. I read the label attached to the cable. I could tell you what connectors are at each end of the cable, but I couldn’t tell you how they are wired together and, having no docs on the cable or an example to check, am dependent on the part number to tell me that. alan The SCSI spec and cabling have a specific way that the conductors have to be rolled to make a round cable. Each cable type has a recommended way that signal and grounds should be paired and in what proximity in the cable. For SMD I never saw a formal spec with as much detail as the SCSI spec, and I don't know if they standardized the cabling. Mainly to speculate about whether you can use a generic 25-25 or 37-37 straight thru. I opened up the drive pedestal chassis. At the panel, a 60-pin ribbon cable is split between the two D-sub connectors, 36 (with the #1 pin) on the 37-pin D-sub and 24 on the 25-pin D-sub. The ribbon cable disappears into the chassis, but there are two 60-pin ribbon cables come out, one connected to each drive. As far as the data connectors, I can only access the connector on one drive. On the drive is a 26-pin IDC connector. The ribbon cable attached to the connector is 25-pin and each drive has it own 25-pin D-sub on the back panel. I suspect the 25-25 would be sensitive to the type of conductor pairing and fabrication would work. The 37-37 bus connector probably would work with looser electrical specs to substitute in different cabling. Also just to make things more entertaining on the Oracle site for sun hardware they are using the term "Storage Module Drive" to refer to 6g/s SAS drives installed in individual blades for a blade server system. So the term appears frequently in their online docs, and including old documents and current documents. When I was searching the Interwebs by part number, I found something that categorized the cables as SAS cables, even though the official name associated with the part number says SMD. They used the exact same name as the SMD drives you have. But as you say they are SAS, which are the somewhat older cousins of SATA drives, and nothing to do with your dries. Here's one example of that term on a page https://docs.oracle.com/cd/E19452-01/html/821-0911/gkfcf.html If I'm not far off base, I ran across two vendors who may have made the controller if they aren't sun, Interphase, and Xylogics. Also an article referred to the Sun boards as Eurocard from Xylogics. Xylogics 753. The SMD controller is a Xylogics 451. It is a Multibus card, so there is a Multibus-VME on the VME board between it and the backplane. The control connector is a 60-pin IDC to ribbon cable split between two D-sub connectors as above. The data connectors is as above, 26-pin IDCs to 25-pin ribbon to 25-pin D-sub. The drives usually had two 60 pin IDC's one in front of the other. You'd usually put a terminator for the daisy chain of the 60 pin bus cable in the outer cable, and there was enough space between them to put the ribbon cable. They used braided cables most times I ever saw them. There is something that is likely a terminator in another 60-pin IDC on the drive that has exposed connectors. The radial cable had a ground plane type ribbon cable with flat parallel conductors composting the rest of the 26 pin cable. Had to have one for each drive from the controller to each drive. I was going to suggest replacing the sun mess of cables with just one 60 pin cable and a 26 pin cable, and run with one drive, but realize you probably only have the sun method of terminating the bus (60 pin) cable. it needs termination at the controller, and on the last drive. Since your system was set up with the sun connection and cabling, you don't have a standalone SMD terminator, which is a small 60 pin thingie that looks a lot lie the Single Ended SCSI terminator for the 50 pin SCSI IDC cabling arrangement. This was a "running when parked" system, so the plan was to just re-cable it as it was. Also, it is being exhibited as a "barn-find" system, so I am trying to use as much of what came out of the barn as possible (even if the dead rodent inside the monitor and subsequent corrosion of its boards means I won't be using it, I may display it). When I can't do that, I am trying to use Sun parts. I ordered the Sun
Re: Sun external SMD cables
On Fri, 14 Feb 2020 at 23:43, Alan Perry via cctalk wrote: > > PS I forgot to thank Liam for offering assistance, so thanks, Liam. You're very welcome. Sorry I misunderstood and couldn't help. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On 2/14/20 1:54 PM, jim stephens via cctech wrote: On 2/14/2020 6:09 AM, Alan Perry via cctalk wrote: On Feb 14, 2020, at 04:15, Liam Proven via cctalk wrote: On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk wrote: I supplied part numbers. How can I be more specific? Oddly, some of us do not have a mental look-up table of Sun part numbers. In fact I think I can safely say that I could not identify a single cable of any form for any machine ever made by its part number. If you can, good for you. I read the label attached to the cable. I could tell you what connectors are at each end of the cable, but I couldn’t tell you how they are wired together and, having no docs on the cable or an example to check, am dependent on the part number to tell me that. alan The SCSI spec and cabling have a specific way that the conductors have to be rolled to make a round cable. Each cable type has a recommended way that signal and grounds should be paired and in what proximity in the cable. For SMD I never saw a formal spec with as much detail as the SCSI spec, and I don't know if they standardized the cabling. Mainly to speculate about whether you can use a generic 25-25 or 37-37 straight thru. I opened up the drive pedestal chassis. At the panel, a 60-pin ribbon cable is split between the two D-sub connectors, 36 (with the #1 pin) on the 37-pin D-sub and 24 on the 25-pin D-sub. The ribbon cable disappears into the chassis, but there are two 60-pin ribbon cables come out, one connected to each drive. As far as the data connectors, I can only access the connector on one drive. On the drive is a 26-pin IDC connector. The ribbon cable attached to the connector is 25-pin and each drive has it own 25-pin D-sub on the back panel. I suspect the 25-25 would be sensitive to the type of conductor pairing and fabrication would work. The 37-37 bus connector probably would work with looser electrical specs to substitute in different cabling. Also just to make things more entertaining on the Oracle site for sun hardware they are using the term "Storage Module Drive" to refer to 6g/s SAS drives installed in individual blades for a blade server system. So the term appears frequently in their online docs, and including old documents and current documents. When I was searching the Interwebs by part number, I found something that categorized the cables as SAS cables, even though the official name associated with the part number says SMD. Here's one example of that term on a page https://docs.oracle.com/cd/E19452-01/html/821-0911/gkfcf.html If I'm not far off base, I ran across two vendors who may have made the controller if they aren't sun, Interphase, and Xylogics. Also an article referred to the Sun boards as Eurocard from Xylogics. Xylogics 753. The SMD controller is a Xylogics 451. It is a Multibus card, so there is a Multibus-VME on the VME board between it and the backplane. The control connector is a 60-pin IDC to ribbon cable split between two D-sub connectors as above. The data connectors is as above, 26-pin IDCs to 25-pin ribbon to 25-pin D-sub. For grins, I tried powering up the drives. They came up and didn't make horrible noises. alan Thanks Jim But if someone, say, told me "I need some SCSI cables: a MD50 to MD68 cable, 2 × MD68 to MD68, an MD50 terminator and ideally a DB25 to MD50," then I would be able to say "yes, I have some of those". However, since Jim has been a bit more forthcoming, it sounds like I can't help you. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On 2/14/2020 11:11 PM, Alan Perry via cctech wrote: On 2/14/20 1:54 PM, jim stephens via cctech wrote: On 2/14/2020 6:09 AM, Alan Perry via cctalk wrote: On Feb 14, 2020, at 04:15, Liam Proven via cctalk wrote: On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk wrote: I supplied part numbers. How can I be more specific? Oddly, some of us do not have a mental look-up table of Sun part numbers. In fact I think I can safely say that I could not identify a single cable of any form for any machine ever made by its part number. If you can, good for you. I read the label attached to the cable. I could tell you what connectors are at each end of the cable, but I couldn’t tell you how they are wired together and, having no docs on the cable or an example to check, am dependent on the part number to tell me that. alan The SCSI spec and cabling have a specific way that the conductors have to be rolled to make a round cable. Each cable type has a recommended way that signal and grounds should be paired and in what proximity in the cable. For SMD I never saw a formal spec with as much detail as the SCSI spec, and I don't know if they standardized the cabling. Mainly to speculate about whether you can use a generic 25-25 or 37-37 straight thru. I opened up the drive pedestal chassis. At the panel, a 60-pin ribbon cable is split between the two D-sub connectors, 36 (with the #1 pin) on the 37-pin D-sub and 24 on the 25-pin D-sub. The ribbon cable disappears into the chassis, but there are two 60-pin ribbon cables come out, one connected to each drive. As far as the data connectors, I can only access the connector on one drive. On the drive is a 26-pin IDC connector. The ribbon cable attached to the connector is 25-pin and each drive has it own 25-pin D-sub on the back panel. I suspect the 25-25 would be sensitive to the type of conductor pairing and fabrication would work. The 37-37 bus connector probably would work with looser electrical specs to substitute in different cabling. Also just to make things more entertaining on the Oracle site for sun hardware they are using the term "Storage Module Drive" to refer to 6g/s SAS drives installed in individual blades for a blade server system. So the term appears frequently in their online docs, and including old documents and current documents. When I was searching the Interwebs by part number, I found something that categorized the cables as SAS cables, even though the official name associated with the part number says SMD. They used the exact same name as the SMD drives you have. But as you say they are SAS, which are the somewhat older cousins of SATA drives, and nothing to do with your dries. Here's one example of that term on a page https://docs.oracle.com/cd/E19452-01/html/821-0911/gkfcf.html If I'm not far off base, I ran across two vendors who may have made the controller if they aren't sun, Interphase, and Xylogics. Also an article referred to the Sun boards as Eurocard from Xylogics. Xylogics 753. The SMD controller is a Xylogics 451. It is a Multibus card, so there is a Multibus-VME on the VME board between it and the backplane. The control connector is a 60-pin IDC to ribbon cable split between two D-sub connectors as above. The data connectors is as above, 26-pin IDCs to 25-pin ribbon to 25-pin D-sub. The drives usually had two 60 pin IDC's one in front of the other. You'd usually put a terminator for the daisy chain of the 60 pin bus cable in the outer cable, and there was enough space between them to put the ribbon cable. They used braided cables most times I ever saw them. The radial cable had a ground plane type ribbon cable with flat parallel conductors composting the rest of the 26 pin cable. Had to have one for each drive from the controller to each drive. I was going to suggest replacing the sun mess of cables with just one 60 pin cable and a 26 pin cable, and run with one drive, but realize you probably only have the sun method of terminating the bus (60 pin) cable. it needs termination at the controller, and on the last drive. Since your system was set up with the sun connection and cabling, you don't have a standalone SMD terminator, which is a small 60 pin thingie that looks a lot lie the Single Ended SCSI terminator for the 50 pin SCSI IDC cabling arrangement. For grins, I tried powering up the drives. They came up and didn't make horrible noises. alan Thanks Jim But if someone, say, told me "I need some SCSI cables: a MD50 to MD68 cable, 2 × MD68 to MD68, an MD50 terminator and ideally a DB25 to MD50," then I would be able to say "yes, I have some of those". However, since Jim has been a bit more forthcoming, it sounds like I can't help you. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK:
Re: Sun external SMD cables
On Fri, 14 Feb 2020, Liam Proven via cctalk wrote:
Oddly, some of us do not have a mental look-up table of Sun part
numbers. In fact I think I can safely say that I could not identify a
single cable of any form for any machine ever made by its part number.
If you can, good for you.
26-1401 TRS80 printer cable - 34 pin card-edge to 36 pin "blue-ribbon"
("centronics"/amphenol)
26-1207 TRS80 cassette cable. Also fits IBM 5150 din to mini-phone plugs
(not much of a refutation of your point)
Re: Sun external SMD cables
> On Feb 14, 2020, at 14:19, Patrick Finnegan via cctalk > wrote: > > On Fri, Feb 14, 2020 at 4:36 PM jim stephens via cctalk > wrote: >> SMD external cables probably weren't that common. The systems I saw >> which were of such as 4/280 etc, rack mounted had the cabling internal >> to the bays and were of the ribbon variety. They used VME bus cards in >> a large size carrier for the controllers in the system frame. The >> system frame had cards that were about 18" high with an extra bus >> connector. But if you aligned the VME cars to fit two of them, there >> was apparently a vme bus. >> >> Those systems that i saw had either 68k processors, or early Sparc >> processors. The sun boards used all three bus connectors and the other >> vendor boards as I sad were usually mounted in a sun dimensioned carrier >> frame. >> >> And reason for all this explanation was that they used a third part >> vendor's SMD interface. >> >> As to the connections to go outside the rack, all the systems I saw had >> 2 or so smd drives and were racked in a 6' bay with room for a tape >> drive at the top, system in the center, and drives @ the bottom, and so >> no need for external. > > For what it's worth, my Sun 3/140 has a Fujitsu 9-track at the top of > the rack, and two Eagles at the bottom of the rack (VME chassis in the > middle), wired to the SMD disk controller with the "external" D-sub > cables, and it's all contained within one rack. I have a 3/260 with the “storage pedestal”, a pair of 8” SMD drives in a deskside chassis the same size as the system chassis. It was originally purchased and used by Mentor Graphics. A now-former employee bought it and used it for a while, then put it in his open barn, where it sat for a dozen years. He gave it to me last year and I am trying to get it running for VCF-PNW in a bit over a month. The big problem is a particular bit is always staying on during the memory path data test, so it won’t even come up to the boot prom. If I can’t get past that, the lack of SMD cables are not a problem :) alan PS I forgot to thank Liam for offering assistance, so thanks, Liam.
Re: Sun external SMD cables
On Fri, Feb 14, 2020 at 4:36 PM jim stephens via cctalk wrote: > SMD external cables probably weren't that common. The systems I saw > which were of such as 4/280 etc, rack mounted had the cabling internal > to the bays and were of the ribbon variety. They used VME bus cards in > a large size carrier for the controllers in the system frame. The > system frame had cards that were about 18" high with an extra bus > connector. But if you aligned the VME cars to fit two of them, there > was apparently a vme bus. > > Those systems that i saw had either 68k processors, or early Sparc > processors. The sun boards used all three bus connectors and the other > vendor boards as I sad were usually mounted in a sun dimensioned carrier > frame. > > And reason for all this explanation was that they used a third part > vendor's SMD interface. > > As to the connections to go outside the rack, all the systems I saw had > 2 or so smd drives and were racked in a 6' bay with room for a tape > drive at the top, system in the center, and drives @ the bottom, and so > no need for external. For what it's worth, my Sun 3/140 has a Fujitsu 9-track at the top of the rack, and two Eagles at the bottom of the rack (VME chassis in the middle), wired to the SMD disk controller with the "external" D-sub cables, and it's all contained within one rack. I haven't seen anyone but Sun using this type of cabling. I have a few *long* shielded ribbon cables from other SMD drives/machines that I acquired at some point - I think everyone else probably just ran a flat cable instead. Pat
Re: Sun external SMD cables
On 2/14/2020 2:00 PM, Paul Koning via cctalk wrote: On Feb 14, 2020, at 4:54 PM, jim stephens via cctalk wrote: ... The SCSI spec and cabling have a specific way that the conductors have to be rolled to make a round cable. Each cable type has a recommended way that signal and grounds should be paired and in what proximity in the cable. For SMD I never saw a formal spec with as much detail as the SCSI spec, and I don't know if they standardized the cabling. Mainly to speculate about whether you can use a generic 25-25 or 37-37 straight thru. I suspect the 25-25 would be sensitive to the type of conductor pairing and fabrication would work. That reminds me of a situation I ran into about 20 years ago, working for a small router company. They had a long spool of Ethernet cable to verify correct operation with max length cables. But things were not working right. At some point I inspected the connectors and noticed the pairs were connected to pins 1-2, 3-4, 5-6, 7-8. So two of the Ethernet pairs were split, since the correct pairing is 1-2, 3-6, 4-5, 7-8. I cut off the connectors and described the correct way; once new connectors were put on correctly the tests passed. paul With all the "cat" foolishness the shysters have gotten in and it's about like the old nonsense with stereo amps "watts" and the current "oxygen free copper" cabling for speakers. Hard to trust any advertised cables and pick ones that actually adhere to any specs. I am not very good at terminating network cables, and prefer to buy all pre-terminated, so what you are referring to is very frustrating. And I've not even started to touch the 10gb networking realm to figure out how to get optimum cabling and networking set up with that technology. thanks Jim
Re: Sun external SMD cables
> On Feb 14, 2020, at 4:54 PM, jim stephens via cctalk > wrote: > > ... > The SCSI spec and cabling have a specific way that the conductors have to be > rolled to make a round cable. Each cable type has a recommended way that > signal and grounds should be paired and in what proximity in the cable. > > For SMD I never saw a formal spec with as much detail as the SCSI spec, and I > don't know if they standardized the cabling. Mainly to speculate about > whether you can use a generic 25-25 or 37-37 straight thru. > > I suspect the 25-25 would be sensitive to the type of conductor pairing and > fabrication would work. That reminds me of a situation I ran into about 20 years ago, working for a small router company. They had a long spool of Ethernet cable to verify correct operation with max length cables. But things were not working right. At some point I inspected the connectors and noticed the pairs were connected to pins 1-2, 3-4, 5-6, 7-8. So two of the Ethernet pairs were split, since the correct pairing is 1-2, 3-6, 4-5, 7-8. I cut off the connectors and described the correct way; once new connectors were put on correctly the tests passed. paul
Re: Sun external SMD cables
On 2/14/2020 6:09 AM, Alan Perry via cctalk wrote: On Feb 14, 2020, at 04:15, Liam Proven via cctalk wrote: On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk wrote: I supplied part numbers. How can I be more specific? Oddly, some of us do not have a mental look-up table of Sun part numbers. In fact I think I can safely say that I could not identify a single cable of any form for any machine ever made by its part number. If you can, good for you. I read the label attached to the cable. I could tell you what connectors are at each end of the cable, but I couldn’t tell you how they are wired together and, having no docs on the cable or an example to check, am dependent on the part number to tell me that. alan The SCSI spec and cabling have a specific way that the conductors have to be rolled to make a round cable. Each cable type has a recommended way that signal and grounds should be paired and in what proximity in the cable. For SMD I never saw a formal spec with as much detail as the SCSI spec, and I don't know if they standardized the cabling. Mainly to speculate about whether you can use a generic 25-25 or 37-37 straight thru. I suspect the 25-25 would be sensitive to the type of conductor pairing and fabrication would work. The 37-37 bus connector probably would work with looser electrical specs to substitute in different cabling. Also just to make things more entertaining on the Oracle site for sun hardware they are using the term "Storage Module Drive" to refer to 6g/s SAS drives installed in individual blades for a blade server system. So the term appears frequently in their online docs, and including old documents and current documents. Here's one example of that term on a page https://docs.oracle.com/cd/E19452-01/html/821-0911/gkfcf.html If I'm not far off base, I ran across two vendors who may have made the controller if they aren't sun, Interphase, and Xylogics. Also an article referred to the Sun boards as Eurocard from Xylogics. Xylogics 753. Thanks Jim But if someone, say, told me "I need some SCSI cables: a MD50 to MD68 cable, 2 × MD68 to MD68, an MD50 terminator and ideally a DB25 to MD50," then I would be able to say "yes, I have some of those". However, since Jim has been a bit more forthcoming, it sounds like I can't help you. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On 2/14/2020 4:17 AM, Liam Proven via cctalk wrote: On Fri, 14 Feb 2020 at 00:42, jim stephens via cctalk wrote: Liam, he's looking for SMD, which need a Bus and Radial. One Bus can daisy chain from drive to drive, and us usually 60 pin. The radial RF cables are usually 26 pin ribbon. A separate cable from the controller to each drive is required to hook up the system. This term seems impossible to Google, since it normally refers to Surface Mount Devices now, but by going via the Wikipedia article on SCSI connectors, I think you both mean: https://en.wikipedia.org/wiki/Storage_Module_Device Is that correct? Storage module device, Control data's drive interface. You're thinking about the 50 pin D-sub that went to the older deskside bricks for workstations. I have quite a wide variety of SCSI cables, including 25-pin, 50-pin, 68-pin and more, and covering most of the connectors, both to and from. What I don't have any more are hardly any SCSI-equipped computers, so I guess that the cables can go. SMD external cables probably weren't that common. The systems I saw which were of such as 4/280 etc, rack mounted had the cabling internal to the bays and were of the ribbon variety. They used VME bus cards in a large size carrier for the controllers in the system frame. The system frame had cards that were about 18" high with an extra bus connector. But if you aligned the VME cars to fit two of them, there was apparently a vme bus. Those systems that i saw had either 68k processors, or early Sparc processors. The sun boards used all three bus connectors and the other vendor boards as I sad were usually mounted in a sun dimensioned carrier frame. And reason for all this explanation was that they used a third part vendor's SMD interface. As to the connections to go outside the rack, all the systems I saw had 2 or so smd drives and were racked in a 6' bay with room for a tape drive at the top, system in the center, and drives @ the bottom, and so no need for external. I am speculating that the Alan's system may have the system in a low bay, and drives in a separate bay or bays. I never saw any sun systems with other than 14" SMD drives, so there were no smaller drive boxes than ones that were full 19" rack sized. Liam, I suspect your cabling might have been for the older workstations, which had "bricks" or "cement block" sized boxes with full size 5 1/4" drives or in some cases 8" form factor drives. And of course, the interfaces that Alan needed was were different than your cabling. Add SMD to the list of terms like microprocessor and microprocessing to the list of mangled terms with two totally different meanings as well. Thanks Jim
Re: Sun external SMD cables
> On Feb 14, 2020, at 04:15, Liam Proven via cctalk > wrote: > > On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk > wrote: >> >> I supplied part numbers. How can I be more specific? > > Oddly, some of us do not have a mental look-up table of Sun part > numbers. In fact I think I can safely say that I could not identify a > single cable of any form for any machine ever made by its part number. > If you can, good for you. I read the label attached to the cable. I could tell you what connectors are at each end of the cable, but I couldn’t tell you how they are wired together and, having no docs on the cable or an example to check, am dependent on the part number to tell me that. alan > > But if someone, say, told me "I need some SCSI cables: a MD50 to MD68 > cable, 2 × MD68 to MD68, an MD50 terminator and ideally a DB25 to > MD50," then I would be able to say "yes, I have some of those". > > However, since Jim has been a bit more forthcoming, it sounds like I > can't help you. > > -- > Liam Proven - Profile: https://about.me/liamproven > Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com > Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven > UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On Fri, 14 Feb 2020 at 00:42, jim stephens via cctalk wrote: > > > Liam, he's looking for SMD, which need a Bus and Radial. One Bus can > daisy chain from drive to drive, and us usually 60 pin. The radial RF > cables are usually 26 pin ribbon. A separate cable from the controller > to each drive is required to hook up the system. This term seems impossible to Google, since it normally refers to Surface Mount Devices now, but by going via the Wikipedia article on SCSI connectors, I think you both mean: https://en.wikipedia.org/wiki/Storage_Module_Device Is that correct? > You're thinking about the 50 pin D-sub that went to the older deskside > bricks for workstations. I have quite a wide variety of SCSI cables, including 25-pin, 50-pin, 68-pin and more, and covering most of the connectors, both to and from. What I don't have any more are hardly any SCSI-equipped computers, so I guess that the cables can go. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On Thu, 13 Feb 2020 at 19:06, Alan Perry via cctalk wrote: > > I supplied part numbers. How can I be more specific? Oddly, some of us do not have a mental look-up table of Sun part numbers. In fact I think I can safely say that I could not identify a single cable of any form for any machine ever made by its part number. If you can, good for you. But if someone, say, told me "I need some SCSI cables: a MD50 to MD68 cable, 2 × MD68 to MD68, an MD50 terminator and ideally a DB25 to MD50," then I would be able to say "yes, I have some of those". However, since Jim has been a bit more forthcoming, it sounds like I can't help you. -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
> On Feb 13, 2020, at 15:42, jim stephens via cctalk > wrote: > > > > On 2/13/2020 10:05 AM, Alan Perry via cctalk wrote: > > >>> I have a box of old Sun SCSI cables I >>> set aside more or less for this reason, as I gave away or sold all my >>> Sun kit. > >> Data a single is 25-pin cable, but I have two drives. so ideally need two. >> Command is a pair of cables, one 25-pin and the other 37-pin. I don't know >> if the pins are straight through or whether they do any swapping from one >> end to the other. >> >> alan >> > Liam, he's looking for SMD, which need a Bus and Radial. One Bus can daisy > chain from drive to drive, and us usually 60 pin. The radial RF cables are > usually 26 pin ribbon. A separate cable from the controller to each drive is > required to hook up the system. https://www.memoryxsun.com/5301079.html https://www.memoryxsun.com/5301080.html When I ordered them just after the new year, it was $124 shipped for two data cables and a command cable pair. The data cables have increased in price by $100 each since then. Maybe that is why my email isn’t getting answered? They have “one left” command cable pair on eBay for a lower price. I am tempted to buy it except I already paid them for another one. alan > > You're thinking about the 50 pin D-sub that went to the older deskside bricks > for workstations. > > thanks > Jim
Re: Sun external SMD cables
On 2/13/2020 10:05 AM, Alan Perry via cctalk wrote: I have a box of old Sun SCSI cables I set aside more or less for this reason, as I gave away or sold all my Sun kit. Data a single is 25-pin cable, but I have two drives. so ideally need two. Command is a pair of cables, one 25-pin and the other 37-pin. I don't know if the pins are straight through or whether they do any swapping from one end to the other. alan Liam, he's looking for SMD, which need a Bus and Radial. One Bus can daisy chain from drive to drive, and us usually 60 pin. The radial RF cables are usually 26 pin ribbon. A separate cable from the controller to each drive is required to hook up the system. You're thinking about the 50 pin D-sub that went to the older deskside bricks for workstations. thanks Jim
Re: Sun external SMD cables
On 2/13/20 9:56 AM, Liam Proven via cctalk wrote: On Thu, 13 Feb 2020 at 18:46, Alan Perry via cctalk wrote: Anyone here have a set of Sun external SMD cables (530-1079 and 530-1080) that they can loan or want to sell? I ordered from a set from MemoryX at the beginning of Jan. They haven’t arrived and MemoryX isn’t answering my e-mail asking what’s up. Can you be a bit more specific? I supplied part numbers. How can I be more specific? I have a box of old Sun SCSI cables I set aside more or less for this reason, as I gave away or sold all my Sun kit. I am afraid I don't know the exact part numbers offhand, but if you can describe what you're looking for, I'll know whether it's worth going digging. They are d-sub male connectors on both ends. Data a single is 25-pin cable, but I have two drives. so ideally need two. Command is a pair of cables, one 25-pin and the other 37-pin. I don't know if the pins are straight through or whether they do any swapping from one end to the other. alan FWIW, I'm in Prague, Czechia. Happy enough to package well and post anywhere if you're paying. :-D -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Re: Sun external SMD cables
On Thu, 13 Feb 2020 at 18:46, Alan Perry via cctalk wrote: > > > Anyone here have a set of Sun external SMD cables (530-1079 and 530-1080) > that they can loan or want to sell? > > I ordered from a set from MemoryX at the beginning of Jan. They haven’t > arrived and MemoryX isn’t answering my e-mail asking what’s up. Can you be a bit more specific? I have a box of old Sun SCSI cables I set aside more or less for this reason, as I gave away or sold all my Sun kit. I am afraid I don't know the exact part numbers offhand, but if you can describe what you're looking for, I'll know whether it's worth going digging. FWIW, I'm in Prague, Czechia. Happy enough to package well and post anywhere if you're paying. :-D -- Liam Proven - Profile: https://about.me/liamproven Email: lpro...@cix.co.uk - Google Mail/Hangouts/Plus: lpro...@gmail.com Twitter/Facebook/Flickr: lproven - Skype/LinkedIn: liamproven UK: +44 7939-087884 - ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053
Sun external SMD cables
Anyone here have a set of Sun external SMD cables (530-1079 and 530-1080) that they can loan or want to sell? I ordered from a set from MemoryX at the beginning of Jan. They haven’t arrived and MemoryX isn’t answering my e-mail asking what’s up. alan
