Thanks to everyone who responded so quickly.
My original post was:
My SPARC 20 has a single serial port on the back which I currently have connected to a modem. My understanding is that you can purchase a splitter cable for this port so that you can access both ttya and ttyb.
1. Does this mean that I can access both ports simultaneously and independently?
2. What is the Sun part number for this splitter?
3. Are there alternate sources?
=============================================================================
Response summary:
1. Answer is Yes.
2. Sun part from Sun Express Catalog: 530-1869/c, also X985A.
3. Alternate sources: See detailed messages below.
Special thanks to Troy Wollenslegel <troy@kira.intranet.org> who sent
me the pin outs for the port so that I could build my own cable.
=============================================================================
From: (James Musso)
1. with the splitter you can access both ports independantly
2. Sun part # from sun express catalog is: 530-1869/c $50
3. alternat source workstation express 1-800-844-5757 same price as sun
Jim Musso
System Manager
CDI Cad Services
3137 E. Elwood Street #160
Phoenix, Az. 85034
jam@cdi.cdicad.com
602-431-4413
602-431-4422(fax)
CCCCCCCC DDDDDDDDD III
CCCCCCCCC DDDDDDDDDDD III
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CCCCCCCCC DDD DDDDDDD III
CCCCCCCC DDD DDDDDD III
"A government which robs Peter to pay Paul, can always count on the support of Paul" - George Bernard Shaw
From: Troy Wollenslegel <troy@kira.intranet.org>
> 1. Does this mean that I can access both ports simultaneously and independently?
YYes, it works both ports.
>
> 2. What is the Sun part number for this splitter?
Mine does not have any part numbers on it., It is called the Y-cable. or
A/B cable
>
> 3. Are there alternate sources?
You can probaby make one yourself if you really want.. if you want I can
send you the pin out specs from our Sparcstation 10 Installation Guide
if you don't have it.
-- Troy Wollenslegel - troy@intranet.org - http://home.intranet.org/~troy My life has a superb cast, but I can't figure out the plot.From: reynolds@acetsw.amat.com (John Reynolds)
> From sun-managers-relay@ra.mcs.anl.gov Fri Jan 31 08:56:26 1997 > Subject: Splitter cable for SPARC 20 > > My SPARC 20 has a single serial port on the back which I currently have connected > to a modem. My understanding is that you can purchase a splitter cable > for this port so that you can access both ttya and ttyb. > > 1. Does this mean that I can access both ports simultaneously and independently?
Yes, it's like having the ttya and ttyb ports.
> > 2. What is the Sun part number for this splitter?
SUN part number X985A, serial splitter cable. > > 3. Are there alternate sources?
I haven't found one yet.
Good luck.
John Reynolds Applied Materials I will not eat oysters. I want my food 2901 Patrick Henry Dr. MS 5502 dead. Not sick, not injured. Dead. Santa Clara CA 95054 -Woody Allen (408) 235-6352 reynolds@acetsw.amat.com
From: Wis Macomson <wis@sequent.com>
> > My SPARC 20 has a single serial port on the back which I currently have connected > to a modem. My understanding is that you can purchase a splitter cable > for this port so that you can access both ttya and ttyb. > > 1. Does this mean that I can access both ports simultaneously and >independently?
Yes, /dev/ttya and /dev/ttyb . I'm doing right now.
> > 2. What is the Sun part number for this splitter?
Don't know. Don't care, either :)
> > 3. Are there alternate sources?
Ultra Spec cables, Inc 170 Oberlin Ave. N. Lakewood, NJ 08701-4548
tel (800) 622-2537 fax (800) 222-5337 sales@ultraspec.com
from p. 12 of the catalog: order #2588 For Sun SPARCstation models 4,5,10 and 20, SPARCclassic
$32.00
-wis -- Wis Macomson c/o wis@sequent.com
From: "James Tran" <jtran@hungary-c.it.earthlink.net>
Peter,
I have just finished installing the splitter cable to my Sparc20 and it works very well. I have ttya connected to a modem, and ttyb connected to an UPS so it can perform an automatic shutdown when the power is down.
You can purchase this cable at Sun Express (800)873-7869 The part number : 530-1869/H5 Cost: $50.00 Description: DB-25(M) to 2 x DB25(F), Serial Port Spitter cable (SS5, SS10, SS20)
Regards,
James Tran<jtran@earthlink.net> System Administrator Linfinity Microelectronics Inc. Product/Test Engineering
From: "David H. Brierley" <dhb@ssd.ray.com>
On Fri, 31 Jan 1997, Peter Schauss x 2014 wrote:
> 1. Does this mean that I can access both ports simultaneously and independently?
Yes.
> 2. What is the Sun part number for this splitter? > > 3. Are there alternate sources?
I don't have the Sun part number handy because we have never purchased an actual Sun cable for this. The pinouts for the serial port are in the back of one of the manuals. We make all of our own splitter cables using this info.
-- David H. Brierley Raytheon Electronic Systems - Portsmouth RI Facility Work: dhb@ssd.ray.com Home: dave@galaxia.com
From: twhite@Bear.COM (Thomas White)
most sparc 20's come with this cable. you can build or have one built - I will look through my notes and see if I have the pin-outs - they would be on paper so it will take a while to look through all the folders and piles. will email again as soon as..
tw
-- ******************************************************************************* Bear Stearns is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. *******************************************************************************
From: Dan Elswit <de21@cornell.edu>
I got a serial port splitter last year for a Sparc 20. It does indeed let you run two devices simultaneously (we run two digitizers off it.) There's basically no installation. Just plug the cable in and off you go. It was $50 from Sun Xpress, part # X985A. Their number is 1-800-873-7869. The $50 might have been with an educational discount, I'm not sure.
Take care! --Dan Elswit
At 10:53 AM 1/31/97 -0500, you wrote: >My SPARC 20 has a single serial port on the back which I currently have connected >to a modem. My understanding is that you can purchase a splitter cable >for this port so that you can access both ttya and ttyb. > >1. Does this mean that I can access both ports simultaneously and independently? > >2. What is the Sun part number for this splitter? > >3. Are there alternate sources? > >Thanks in advance, > >Peter Schauss >ps4330@okc01.rb.jccbi.gov >Gull Electronic Systems Division >Parker Hannifin Corporation >Smithtown, NY >
__________________________________________________________________ Daniel Elswit Research Support Specialist/Network Administrator Soil, Crop, and Atmospheric Sciences Cornell University, Ithaca NY
From: Troy Wollenslegel <troy@kira.intranet.org>
Here is waht I copied out of my Sparc Book.
13 12 11 10 09 08 07 06 05 04 03 02 01 25 24 23 22 21 20 19 18 17 16 15 14 (active pins = 2-8, 11-13, 14-20, 24-25 ) Sparc Back Pabel Serial Connecter A/B
13 12 11 10 09 08 07 06 05 04 03 02 01 25 24 23 22 21 20 19 18 17 16 15 14 (active pins = 2-8, 15,20,24) Serial interface Y-Cable Port A
13 12 11 10 09 08 07 06 05 04 03 02 01 25 24 23 22 21 20 19 18 17 16 15 14 (active pins = 2-5,7,8,20) Serial interface Y-Cable Port B
Back Panel Serial Connector Specs Pin Circuit Signal Direction Description 1 none none none not connected 2 BA TD output Transmit Port A 3 BB RD input Receive Data Port A 4 CA RTS output Request to Send Port A 5 CB CTS input Clear To Send Port A 6 CC DSR input Data Set Ready Port A 7 AB SG none Signal Ground 8 CF DCD i/o Data Carrier Detect Port A 9 none none none not connected 10 none none none not connected 11 SCD SDTR input Secondary Data Terminal Ready Port B 12 SCF SDCD input Secondary Data Carrier Detect Port B 13 SCB SCTS input Secondary Clear To Send Port B 14 SBA STD output Secondary Transmit Data Port B 15 DB TC input Transmit clock: Port A DCE source 16 SBB SRD input Secondary Receive Data Port B 17 DD RC input Receive clock Port A 18 SDB STC input Secondary Transmit Clock Port B 19 SCA SRTS output Secondary Request To Send Port B 20 CD DTR output Data Terminal Ready Port A 21 none none none not connected 22 none none none not connected 23 none none none not connected 24 DA TC output Transmit Clock Port A DTE Source 25 DA TC output Transmit Clock Port B DTE Source
Port A Asynchronous 2 BA TD output Transmit Port A 3 BB RD input Receive Data Port A 4 CA RTS output Request to Send Port A 5 CB CTS input Clear To Send Port A 6 CC DSR input Data Set Ready Port A 7 AB SG none Signal Ground 8 CF DCD i/o Data Carrier Detect Port A 15 DB TC input Transmit clock: Port A DCE source 17 DD RC input Receive clock Port A 20 CD DTR output Data Terminal Ready Port A 24 DA TC output Transmit Clock Port A DTE Source
Port B Synchronous 2 SBA STD output Secondary Transmit Data Port B 3 SBB SRD input Secondary 4 SCA SRTS output Secondary Request To Send Port B Receive Data Port B 5 SCB SCTS input Secondary Clear To Send Port B 7 AB SG none Signal Ground 8 SCF SDCD input Secondary Data Carrier Detect Port B 20 SCD SDTR input Secondary Data Terminal Ready Port B
-- Troy Wollenslegel - troy@intranet.org - http://home.intranet.org/~troy My life has a superb cast, but I can't figure out the plot.
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