16 Jan
2002
16 Jan
'02
3:11 p.m.
In a message dated 1/16/02 12:29:00 PM Pacific Standard Time,
vze2wsvr(a)verizon.net writes:
It is an ISA-16 card. It has a 68000, w/2 27128
EEPROMs, 16 1259-15 RAM
chips
and Intel
chips, 82586 and 8253-5. The rest looks to be TTL, a couple of connectors
and
couple of
crystals, 16 and 20 MHz.
It was made by Bridge Communications, USA, in 1987. And it has a D-shell
15
pin (like a
Mac video -2 rows of pins) female connector on the back.
Could be an early AUI ethernet controller. The 82586 was intel's ethernet
co-processor. It worked with a CPU chip. Ungerman Bass used an 80186 with the
82586 in their ethernet ISA cards.
Bridge Communications also made boxes for bridging different systems and
standards.
Paxton
Astoria, OR
16 Jan
16 Jan
7:44 p.m.
On Wed, 16 Jan 2002 Innfogra(a)aol.com wrote:
In a message dated 1/16/02 12:29:00 PM Pacific
Standard Time,
vze2wsvr(a)verizon.net writes:
Might also be a 3270 emulator board. These often used a twinaxial passthru
T type connector with a 15 pin D-shell connector on a pigtail that
connected to the board.
-Toth
It is an ISA-16 card. It has a 68000, w/2 27128
EEPROMs, 16 1259-15
RAM chips and Intel chips, 82586 and 8253-5. The rest looks to be
TTL, a couple of connectors and couple of crystals, 16 and 20 MHz.
It was made by Bridge Communications, USA, in 1987. And it has a
D-shell 15 pin (like a Mac video -2 rows of pins) female connector on
the back.
Could be an early AUI ethernet controller. The 82586 was intel's ethernet
co-processor. It worked with a CPU chip. Ungerman Bass used an 80186 with the
82586 in their ethernet ISA cards. 
17 Jan
17 Jan
8:01 a.m.
Tothwolf wrote:
On Wed, 16 Jan 2002 Innfogra(a)aol.com wrote:
Wasn't the 3270 emulator a dual card setup?
In a message dated 1/16/02 12:29:00 PM Pacific
Standard Time,
vze2wsvr(a)verizon.net writes:
Might also be a 3270 emulator board. These often used a twinaxial passthru
T type connector with a 15 pin D-shell connector on a pigtail that
connected to the board.
It is an ISA-16 card. It has a 68000, w/2 27128
EEPROMs, 16 1259-15
RAM chips and Intel chips, 82586 and 8253-5. The rest looks to be
TTL, a couple of connectors and couple of crystals, 16 and 20 MHz.
It was made by Bridge Communications, USA, in 1987. And it has a
D-shell 15 pin (like a Mac video -2 rows of pins) female connector on
the back.
Could be an early AUI ethernet controller. The 82586 was intel's ethernet
co-processor. It worked with a CPU chip. Ungerman Bass used an 80186 with the
82586 in their ethernet ISA cards. -Toth
10:40 a.m.
On Thu, 17 Jan 2002, Eric Chomko wrote:
Tothwolf wrote:
Not the ones I've seen. I've seen both 8 and 16 bit 3270 emulator boards,
some half length, some full length. Generally the older the board, the
bigger it is.
One good way to tell the difference between a 3270 and AUI ethernet
connector is the hardware used for the D-Sub connector. If it has a slide
lock for an AUI drop cable, it's almost certainly an ethernet board. If it
has 2 posts spaced out away from the D-Sub, it likely is an AUI ethernet
connector, and uses a clip with 2 screws to attach the drop cable to the
board. If it has standard D-Sub hardware, it is likely a 3270 emulator
board.
-Toth
Might also be a 3270 emulator board. These often
used a twinaxial passthru
T type connector with a 15 pin D-shell connector on a pigtail that
connected to the board.
Wasn't the 3270 emulator a dual card setup? 
6:08 p.m.
On Thu, 17 Jan 2002, Eric Chomko wrote:
> Might also be a 3270 emulator board. These often
used a twinaxial passthru
> T type connector with a 15 pin D-shell connector on a pigtail that
> connected to the board.
This would be a 5250 emulator.
Wasn't the 3270 emulator a dual card setup?
*Very* early ones were. The newest ones are quarter-size single boards.
Peace... Sridhar
18 Jan
18 Jan
1:13 a.m.
On Thu, 17 Jan 2002, Julius Sridhar wrote:
You sure about that? I think I have a brand new one made by AST still in
its original box.
-Toth
> Might
also be a 3270 emulator board. These often used a twinaxial passthru
> T type connector with a 15 pin D-shell connector on a pigtail that
> connected to the board.
This would be a 5250 emulator.
1:33 a.m.
On Fri, 18 Jan 2002, Tothwolf wrote:
You sure about that? I think I have a brand new one made by AST still in
its original box.
I was referring to the IBM part. I don't know about AST parts.
Peace... Sridhar
> Might also be a 3270 emulator board. These often
used a twinaxial passthru
> T type connector with a 15 pin D-shell connector on a pigtail that
> connected to the board.
This would be a 5250 emulator.
8391
days inactive
8393
days old
6 comments
4 participants
participants (4)
-
Innfogra＠aol.com -
tothwolf＠concentric.net -
vance＠ikickass.org -
vze2wsvr＠verizon.net