herb@blender.uucp (Herb Peyerl) (11/14/90)
marty@ultra.com (Marty Lyons) writes: >Question 1: Is the bus the same as an AT bus, in that could I use standard PC >class cards in the machine? I need to pick up a dual port serial card to >drive a modem and printer, and could get a standard PC card real cheap. I don't know about dual (Com1/Com2) style cards but I've used a standard AT class card with one port on it with reasonable success.. You can also use your typical PC style parallel card as well or even so far as a monochrome adaptor with parallel port... The bus is compatible... If you have an EGA monitor/card that you wanna use, that should work well also. >and one 34 pin and one 20 pin connector to the hard drive. I've been told >I can use the other two 20 pin connectors to hook up the other two drives. >If anyone has done this, do you know the pin outs of the cables, and >what the power specs are for the drives (since I have to build my own >enclosure, with power supply, for the two drives). I'm assuming the 6151 is the same as the 6150 except with less slots and a different case/power suppliy. I've worked on them and haven't found any other incompatibilities... The drives are set up in the same manner as you would set up PC drives except that the VRM only supports 3 physical disks as opposed to the 4 that you could fit on two controllers... (without going to scsi)... You can even mix and match controllers. I have an RT with 2MFM drives and one ESDI drive... The setup seems to work reasonably well. If you're unsure of how to hookup PC drives, then just ask any of the PC people. I'm late for work and don't have time to describe it. It's fairly simple. >Question 3: I also have a tape controller, with no company name on the card, >and again, have no documentation. The only markings on the card are: >"BE 3-1 2386 EC A31257H". It has a 37 pin male connector on the back. >Anyone have one of these? Anyone know what it is? Anyone still reading this? >If so, I need to know the pin outs for this cable, and whether this board >is a SCSI or ESDI controller. I don't know what this one is. I also have one and borrow a 6157-002 drive every once in a while to backup my system but that's as far as it goes. I'd like to hear someone say that it's SCSI so I can steal a drive off one of the Apollo's at work, but I'm pretty sure someone is going to disappoint me.. >A million thanks to anyone who can help.... >/Marty > Joining the ranks of the confused IBM RT owners with no documentation >-- >--- >Marty Lyons, Ultra Network Technologies, 101 Daggett Dr, San Jose, CA 95134 USA >(408) 922-0100 x196, marty@ultra.com, "Home of the 1 Gigabit/Second network" -- -------------------------------------------------------------------------- UUCP: herb@blender.UUCP || ...calgary!ajfcal!blender!{herb||root} ICBM: 51 03 N / 114 05 W || Apollo Sys_admin, Novatel Communications "I put instant coffee in the microwave oven & went back in time" S. Wright
marty@ultra.com (Marty Lyons) (11/17/90)
I just purchased an RT (Model 6151) and have several questions. Question 1: Is the bus the same as an AT bus, in that could I use standard PC class cards in the machine? I need to pick up a dual port serial card to drive a modem and printer, and could get a standard PC card real cheap. Question 2: I also purchased two IBM Model 70E hard drives with no case, and, unfortunately, no documentation. I noticed on the Extended ESDI Adapter I have in the system, which drives the existing 70E hard drive and diskette (1.2mb) that there are two 34 pin connectors, and three 20 pin connectors. Of these, one 34 pin connector goes to the diskette, and one 34 pin and one 20 pin connector to the hard drive. I've been told I can use the other two 20 pin connectors to hook up the other two drives. If anyone has done this, do you know the pin outs of the cables, and what the power specs are for the drives (since I have to build my own enclosure, with power supply, for the two drives). Question 3: I also have a tape controller, with no company name on the card, and again, have no documentation. The only markings on the card are: "BE 3-1 2386 EC A31257H". It has a 37 pin male connector on the back. Anyone have one of these? Anyone know what it is? Anyone still reading this? If so, I need to know the pin outs for this cable, and whether this board is a SCSI or ESDI controller. A million thanks to anyone who can help.... /Marty Joining the ranks of the confused IBM RT owners with no documentation -- --- Marty Lyons, Ultra Network Technologies, 101 Daggett Dr, San Jose, CA 95134 USA (408) 922-0100 x196, marty@ultra.com, "Home of the 1 Gigabit/Second network"
smvorkoe@daisy.waterloo.edu (Stefan M. Vorkoetter) (11/22/90)
The RT we have has two serial ports on the motherboard (planar in IBM wording). We also have a four port ASYNC adapater, giving us a total of six ports. Can I now plug in a standard AT 2 port serial card? If so, will there be any conflicts with interrupts and such. I suspect that the slots are AT compatible, but that it is not really a bus. In other words, each slot is separate, and two identical cards plugged into different slots will not necessarily interfere with one another. Comments? Suggestions? Stefan Vorkoetter Technical Manager Waterloo Maple Software (smvorkoetter@daisy.waterloo.edu)
webb@ibmpa.awdpa.ibm.com (Bill Webb) (12/01/90)
In article <1990Nov22.155240.26006@watdragon.waterloo.edu>, smvorkoe@daisy.waterloo.edu (Stefan M. Vorkoetter) writes: |> |> The RT we have has two serial ports on the motherboard (planar in IBM |> wording). We also have a four port ASYNC adapater, giving us a total |> of six ports. Can I now plug in a standard AT 2 port serial card? If |> so, will there be any conflicts with interrupts and such. I suspect |> that the slots are AT compatible, but that it is not really a bus. In |> other words, each slot is separate, and two identical cards plugged |> into different slots will not necessarily interfere with one another. |> Stefan Vorkoetter Yes you can plug in most AT cards. The RT has essentially an AT bus (not quite but close enough for this discussion). If the AT cards are at COM1 and COM2 then they will be /dev/ttyc0 and /dev/ttyc1 (assuming you are running BSD 4.3 which I expect you would be at an educational institution). If you don't have these devices on the system you can make them (after rebuilding your kernel if you didn't config in asy4 and asy5), by issuing the following commands (as root): cd /dev ./MAKEDEV com0 com1 The RT can handle shared interrupt lines (provided that the cards do the "right" thing (which I suspect many AT cards don't). The best thing for safety and efficiency is to put AT cards on their own interrupt (IRQ) line. This is usually not a problem with COM cards as they are on IRQ 3 and 4 (if memory serves me), and most RT cards are not (most that can be on 3 or 4 (such as the ethernet card) have jumpers that can change it if needed). In any case, the bus is really a bus - you cannot have cards with conficts in IO ports or IO memory addresses and expect things to work. As I already mentioned RT cards can share IRQ lines but you usually don't have to. Note that if you need additional serial ports (above adding the two via an AT card) you can add additional 4port cards with different port addresses. The asy driver supports up to 4 4-port cards for a total of 18 ports (2 plannar plus 16 on the cards). Of course you might start to run out of slots if you do that (the disk adapter, network adapter, and display adapter all take slots). ---------------------------------------------------------------- The above views are my own, not necessarily those of my employer. Bill Webb (IBM AWD Palo Alto), (415) 855-4457. UUCP: ...!uunet!ibmsupt!webb INTERNET: webb@ibminet.awdpa.ibm.com