#1633649 - 10/24/19 08:06 PM
CN2 IDE connector on VS-2480 motherboard
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RickD
Planeteer
Registered: 02/19/07
Posts: 286
Loc: Prague, Czech Republic & Guana...
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Hello, Right next to the HD IDE connector is a second, identical, one named CN2. Can a second internal HD be connected to this? Thank you
[img]https://www.dropbox.com/sh/8b495nwv2rpdqnc/AACJgOCAV3WNFZOdvDMRAVWSa?dl=0[/img]
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All the best, RickDangerous - VS-2480CD v2.505 with 2x 'two' cards + 2x 'three' cards + all plug-ins + Meter bridge - Converted to DVD with a UJ-860 + SSD with a Samsung EVO 860 250GB - JBL LSR308 monitors The rest of my gear : http://fr.audiofanzine.com/membres/29885/products/
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#1633666 - 10/24/19 10:02 PM
Re: CN2 IDE connector on VS-2480 motherboard
[Re: RickD]
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uptildawn
Planeteer
Registered: 12/15/01
Posts: 9067
Loc: on land
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If the 2480 is built the way the others are, I'd say no - it's a special service/testing connector for techs at Roland.
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uptildawn
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#1633697 - 10/25/19 07:06 AM
Re: CN2 IDE connector on VS-2480 motherboard
[Re: uptildawn]
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FalconEddy
Retired Mastering Marvel
Planeteer
Registered: 10/16/01
Posts: 10576
Loc: Litchfield, NH, USA
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If the 2480 is built the way the others are, I'd say no - it's a special service/testing connector for techs at Roland.
Correct. The CN2 connector on the Main Board is specifically for Roland. It is a 50 pin SCSI-I diagnostic port indicative of all models of the VS-2480.
The CN1 connector was allowed for on the original design, bur only as an empty space parallel to the 'TOOL' connection port (CN2).
Now, not to sound like a pompous ass, but I'm fairly certain that HKP or someone else might possibly pop-in to tell me if I am .... ALL of the storage device systems on the VS-2480 units are riding on a SCSI-I bus.
Internally on these units, IDE comes into play AFTER the SCSI-I protocol connects to a SCSI-I to PATA IDE bridge adapter, or equivalent. Plus, there's the obvious physical 50 pin to 40 pin reduction required from the Centronics 50 standard to the PATA IDE 40 standard.
Naturally, external drives connected to the SCSI-I connector at the rear of the VS-2480... are SCSI-I, with yield of a maximum transfer rate of 5GB/second. Antiquated technology, perhaps; but I was able to record (on a freshly formatted drive) a full 24 tracks simultaneously in MTP @ 48kHz of a band playing live to my external 18GB Barracuda for 30 minutes.
I have also recorded 8 tracks simultaneously on that external drive at M24 @ 96kHz, all digitally using four digital preamps with tubes, an AE-7000, a MYTEK Stereo 192 SRC for the Wordclock, the MB-24 to monitor in inputs, and a 22" monitor to view to output stages. Just an outstanding portable console setup for a private session of a string quartet and grand piano.
But, I digress...
I borrowed a photo from Arjan van Gog's September 16th, 2004 article on 'Roland VS 2480 CD to Roland VS 2480 DVD conversion project '.
I then made some notations on it based on what I wrote in this reply (pertinent to the thread). The battery was an extra!
Hope this helps with a visual.
. . Falcon
Edited by FalconEddy (10/27/19 03:39 AM) Edit Reason: changed adjusted image
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. . . but, what do I know?
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#1633698 - 10/25/19 07:41 AM
Re: CN2 IDE connector on VS-2480 motherboard
[Re: FalconEddy]
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RickD
Planeteer
Registered: 02/19/07
Posts: 286
Loc: Prague, Czech Republic & Guana...
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Thanks!
So no one has tried plugging a second CDR/DVDR/HD into CN2 to see if it gets recognized? I find that hard to believe. I might try plugging my DVDR into it to see.
_________________________
All the best, RickDangerous - VS-2480CD v2.505 with 2x 'two' cards + 2x 'three' cards + all plug-ins + Meter bridge - Converted to DVD with a UJ-860 + SSD with a Samsung EVO 860 250GB - JBL LSR308 monitors The rest of my gear : http://fr.audiofanzine.com/membres/29885/products/
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#1633740 - 10/25/19 05:53 PM
Re: CN2 IDE connector on VS-2480 motherboard
[Re: RickD]
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gyorpb
Planeteer
Registered: 05/11/19
Posts: 295
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The CN2 connector on the Main Board is specifically for Roland. It is a 50 pin SCSI-I diagnostic port indicative of all models of the VS-2480. That connector is very much not a SCSI connection of any sort. It’s just a 50-pin headerNow, not to sound like a pompous ass, but I'm fairly certain that HKP or someone else might possibly pop-in to tell me if I am .... ALL of the storage device systems on the VS-2480 units are riding on a SCSI-I bus. They are not.Internally on these units, IDE comes into play AFTER the SCSI-I protocol connects to a SCSI-I to PATA IDE bridge adapter, or equivalent. Plus, there's the obvious physical 50 pin to 40 pin reduction required from the Centronics 50 standard to the PATA IDE 40 standard. That is not how SCSI to IDE conversion works. The 50-pin IDE connector simply carries a few extra power lines; the first 40 (44, even, actually) pins follow the standard IDE pinout.So no one has tried plugging a second CDR/DVDR/HD into CN2 to see if it gets recognized? I find that hard to believe. I might try plugging my DVDR into it to see. It might simply not work. It might boot up without seeing whatever device you plugged in. It might behave erratically. Or it might destroy your VS-2480. The only thing I can guarantee, is that it won’t work. Because that isn’t what that connector is for.
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#1633907 - 10/27/19 06:54 AM
Re: CN2 IDE connector on VS-2480 motherboard
[Re: gyorpb]
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FalconEddy
Retired Mastering Marvel
Planeteer
Registered: 10/16/01
Posts: 10576
Loc: Litchfield, NH, USA
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The CN2 connector on the Main Board is specifically for Roland. It is a 50 pin SCSI-I diagnostic port indicative of all models of the VS-2480. That connector is very much not a SCSI connection of any sort. It’s just a 50-pin header Now, not to sound like a pompous ass, but I'm fairly certain that HKP or someone else might possibly pop-in to tell me if I am .... ALL of the storage device systems on the VS-2480 units are riding on a SCSI-I bus. They are not. Internally on these units, IDE comes into play AFTER the SCSI-I protocol connects to a SCSI-I to PATA IDE bridge adapter, or equivalent. Plus, there's the obvious physical 50 pin to 40 pin reduction required from the Centronics 50 standard to the PATA IDE 40 standard. That is not how SCSI to IDE conversion works. The 50-pin IDE connector simply carries a few extra power lines; the first 40 (44, even, actually) pins follow the standard IDE pinout. So no one has tried plugging a second CDR/DVDR/HD into CN2 to see if it gets recognized? I find that hard to believe. I might try plugging my DVDR into it to see. It might simply not work. It might boot up without seeing whatever device you plugged in. It might behave erratically. Or it might destroy your VS-2480. The only thing I can guarantee, is that it won’t work. Because that isn’t what that connector is for.
gyorpb:
Correct. I got type-happy with the SCSI-I nomenclature.
That is also 100% correct. My brain seems to have partially transformed into a sieve during this thread. I mean, I know that the 17059060 First Edition Service Manual (June 2001) for the VS-2480, CLEARLY shows in the Block Diagram on page 19, in the upper right hand corner... IDE CONNECTOR CN18.
Although it appears that I'm a complete idiot (based on my thread reply), I'm actually QUITE the opposite. In fact, I've worked with Small System Computer Interface since its inception; as I have with parallel ATA, so I know precisely how those two protocols interface. However, based on my comments about bridge adapters, Centronics 50 connectors, and PATA IDE 40; you we're most likely thinking what the hell is wrong with this guy?
I would have too. DUH.
I've been working on numerous projects with people, and one of them is to get an external SSD working using a bridge adapter card in conjunction with the VS-2480's SCSI port. This entails the utilization of a specific PATA to SATA bridge adapter, and a few different SSD drives that have actually tested out OK for an internal application with the VS-2480.
Got it to work with an ACARD removable drive backup system, and finally a SCSI-I external box with a SCSI-I to IDE adapter, a JP 103-5 PATA to SATA Bridge Adapter, and a 40 x 40 pin female x female ribbon cable to connect to two adapters. My SSD choice was a Samsung 128GB model #MZ-7PC1280/0H1. Another Planeteer used a different model Samsung 256GB SSD.
RickD , whatever you do, I WOULD STRONGLY RECOMMEND YOU DO NOT PLUG A HARD DRIVE OR CD/DVD INTO THE CN2-TOOL CONNECTOR PORT.
. . Falcon
_________________________
. . . but, what do I know?
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