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Miltope MSD V2

CAFRS

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Looks like I might be reviving an older thread. But I recently picked up one of these Miltope computers from a yardsale and on my quest to revive the hunk of aluminum I found this forum.

Of course it was my luck that the unit did not have the HDD caddy and the guy I bought it from didn't know anything about it. I've stripped the thing down and found out the proprietary connector inside is 50 pins. The mother-board and ribbon cable to the connector both mark pins 1-50. However, I am unsure how this translates to the pinout of an IDE ATA drive (whether pin 1 is the "first" pin on the drive, etc).

That said, any of you folks on here know how this pinout interfaces to the HDD? Perhaps one of you who may have a caddy and/or cable that works as intended would be willing to perform a continuity test with a multimeter, between the connector that plugs into the computer and the connector that plugs into the HDD? I would be very grateful.

My plan is to ultimately create my own from scratch (and also include an adapter to get a modern SSD into it), which is no issue for me. I just need to fully understand the pinout first. If successful, I'd be willing to share a detailed walkthrough of what I do should any body else in the same tough-spot need it.

Thanks and fingers crossed!
 

Mullaney

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Looks like I might be reviving an older thread. But I recently picked up one of these Miltope computers from a yardsale and on my quest to revive the hunk of aluminum I found this forum.

Of course it was my luck that the unit did not have the HDD caddy and the guy I bought it from didn't know anything about it. I've stripped the thing down and found out the proprietary connector inside is 50 pins. The mother-board and ribbon cable to the connector both mark pins 1-50. However, I am unsure how this translates to the pinout of an IDE ATA drive (whether pin 1 is the "first" pin on the drive, etc).

That said, any of you folks on here know how this pinout interfaces to the HDD? Perhaps one of you who may have a caddy and/or cable that works as intended would be willing to perform a continuity test with a multimeter, between the connector that plugs into the computer and the connector that plugs into the HDD? I would be very grateful.

My plan is to ultimately create my own from scratch (and also include an adapter to get a modern SSD into it), which is no issue for me. I just need to fully understand the pinout first. If successful, I'd be willing to share a detailed walkthrough of what I do should any body else in the same tough-spot need it.

Thanks and fingers crossed!
.
Don't know for sure because I have never seen one. Could be a 50pin SCSI (before fast wide 68 pin SCSI) or depending on who built it, IBM had 50 pin IDE drives with power built into those connectors.
 

CAFRS

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Don't know for sure because I have never seen one. Could be a 50pin SCSI (before fast wide 68 pin SCSI) or depending on who built it, IBM had 50 pin IDE drives with power built into those connectors.
That does look promising, at least from some images I've seen it has the parallel pins in a male connection (the connection to the Miltope looks to be female). I don't have one handy to compare the size.

I'll toss in some pictures of the connector in the Miltope, maybe it'll help give a better idea of it?

connect1.PNG
connect2.PNG
connect3.PNG

This is what the ribbon cable to the mother-board looks like, just to show what I mentioned earlier.

connect4.PNG
 

Mullaney

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Steel Soldiers Supporter
Supporting Vendor
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That does look promising, at least from some images I've seen it has the parallel pins in a male connection (the connection to the Miltope looks to be female). I don't have one handy to compare the size.

I'll toss in some pictures of the connector in the Miltope, maybe it'll help give a better idea of it?

View attachment 870463
View attachment 870464
View attachment 870465

This is what the ribbon cable to the mother-board looks like, just to show what I mentioned earlier.

View attachment 870466
.
Dang. Yessir, seems "similar but different" and a PS2 Connector and the connections are definitely backward to use those parts.

Sorry. I was hopeful.

My guess is that part of the MILTOPE folks made it the way they did intentionally. All parts would have to come from them is my guess.
 

CAFRS

New member
3
5
3
Location
United States
.
Dang. Yessir, seems "similar but different" and a PS2 Connector and the connections are definitely backward to use those parts.

Sorry. I was hopeful.

My guess is that part of the MILTOPE folks made it the way they did intentionally. All parts would have to come from them is my guess.
Yeah manufacturers like to do that, with all their proprietary connectors that you have to get from them. I'm still hopeful that someone might be able to do a continuity test on an existing HDD caddy or cable to provide the exact pinout. From there I'd be able to replicate my own connector/adapter from scratch.
 

LwCwb08

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Berlin, NJ
Well since this thread has been revived... I'm looking for a copy of the EMS-2 viewer. Mine is somehow corrupted (looking for a .dpl config file). Anybody got a way of getting me that please shoot me a PM.
 
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