On all of my machines, and likely most of the machines IBM made, there is an interlock that prevents changing the patchboard in any way. There is a complex hinge arrangement that closes the door before any connections are made, basically. Sure, a Sawzall would solve that, but that is not provided in many CE kits.
-- Will On Sun, May 29, 2022 at 2:26 PM Seymour J Metz <[email protected]> wrote: > > You could theoretically add wires without removing the board. I've never seen > it done and I suspect that it's not safe. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List [[email protected]] on behalf of > Joe Monk [[email protected]] > Sent: Sunday, May 29, 2022 2:13 PM > To: [email protected] > Subject: Re: my new z114 > > "I've never seen a picture of one of > those wire boards being worked on and always assumed you did the work > while it was in the machine. " > > Ummm ... not possible. To reprogram a board, you had to take a special IBM > tool and push the wire up thru the bottom of the board! Kinda hard to do > when the board is in the machine :) > > Growing up, my dad had a job as an IBM CE. One of his product lines was the > 6400 accounting machine. Great fun for a kid on the weekend to play with a > plugboard and wires! > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.computerhistory.org%2Fcollections%2Fcatalog%2F102732361&data=05%7C01%7Csmetz3%40gmu.edu%7C5a7aac3ffe1b4b7c1b2508da419ef53e%7C9e857255df574c47a0c00546460380cb%7C0%7C0%7C637894448231932461%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6dS06L5Le0aAT%2FlvfMR4wCy0b8AviG8kxp%2B%2F061%2F8EY%3D&reserved=0 > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.computerhistory.org%2Fcollections%2Fcatalog%2F102645466&data=05%7C01%7Csmetz3%40gmu.edu%7C5a7aac3ffe1b4b7c1b2508da419ef53e%7C9e857255df574c47a0c00546460380cb%7C0%7C0%7C637894448231932461%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=oIyRS%2FGbDiZNquT4b11R8016FrKSPYRkbzke4A8IyZM%3D&reserved=0 > > Joe > > On Sun, May 29, 2022 at 12:00 PM Tom Brennan <[email protected]> > wrote: > > > Enzo mentioned he has a couple of ESCON cards, so he's still in the > > running. Great pic of your dad - I've never seen a picture of one of > > those wire boards being worked on and always assumed you did the work > > while it was in the machine. On a table looks a whole lot easier. > > > > On 5/29/2022 7:42 AM, Gary Eheman wrote: > > > Harry: > > > To try and squelch a bit of misinformation here since the Internet never > > forgets, Funsoft was *not* spun off from IBM. It was founded independently > > and the software and hardware engineering roots were definitely not IBM. > > > > > > Enzo can contact me concerning a FLEXCUB. No need if his z114 has no > > ESCON channels which would be a pre-req. > > > > > > A second unrelated intersection to your post relative to Columbia is a > > pic of my father: > > http://secure-web.cisco.com/1gwDFZ0VlqoCEukSVnTPS9NrhjazJmj-3U1dBfEt5gk4BwjjxsNtFHIDEnYfbCzWq4Q6OKfisop3TmqYJAumPycsMTHL2v7-SzSC7MwNo-QvgScZxaXN7LYEiwN6vOmtQhyB9H-31LaxJ92ZdqRw3cCrNpzOegAplxOKzc2Ull6eTDQqz32iNU7_wmW8fALJ1dz-v8CnI1kcg3CHw1Yw7A7Ai611_X7znJqzpmV8oQZOmEPMVW7Wd2WYiCalCX7PQ-UMRIN_YSR2sMAad2aT-tbOKLc49kHsN9u0B5TnGEsGtC_Dshi_ddxNHPG8JZQwBn8Jn0BI1FEOXsYnMVBXU9aIyktJZeaqAfsiweuGZyh5zSCsOSedzWUOLuKeW7Vcp7WgGba0y7G0_BXgI5i_l5nKJMQZlv59_Dse0xZ1SADzdKzhOgauJPt1RhE2Sr-NR/http%3A%2F%2Fwww.columbia.edu%2Fcu%2Fcomputinghistory%2F407.html > > > We used the same pic when my family endowed a perpetual scholarship at > > armyscholarshipfoundation.org > > > > > > On Sat, 28 May 2022 16:50:07 +0000, Harry Wahl <[email protected]> > > wrote: > > > > > >> Enzo, > > >> > > >> You may want to see if you can get a FlexCub which, with its PC Escon > > card, will connect your z114 to a PC based platform and emulate every type > > of z114 peripheral you could possibly use. > > >> > > >> Using standard Escon fiber cable, the z114 Escon connects directly to a > > PC Card that is a mainframe channel adapter. Between the card's firmware > > and specific PC programs in the one PC box you will be able to emulate all > > the peripherals you will need. > > >> > > >> http://secure-web.cisco.com/1VwG2tbYb1jAjg201pQkV_T2Xk4RWdRqHdSu4I5T1gmotr_54qG7oYif6WOeAFKDwfuDwo2ld5tPxHUl54b5qbjcDUnumLjKF-VB4wavk7zzYSXCUVQ9teLqJ8QsKpJjSYDS1VemU444xopkuo1o2L0vSXIDMWMzYBPkSO0ADwzsRfjl26btiGLyiTfmKdBtE9enuYYdrz2cJdiD5rQM0iEuBMgJ2atTeLlFbKOBMoUlrFBSMDGDZBrJ0cLb0seDlqaooHhB5oinuNR2XvNf7mxySklYrQAWkUvwHBpdyvIrJMNQCRPHE4GWYGTmgnmIxEkza9GU-11HlQIqRaGqty9xU7bv2asl1Q89dLdLwBt6g6JOdQti781ycKR7pTO4ezSBmSiOZgsCoDGKmCrheAZjxpahepAymhjU8ahSEadCKfPctiD14RerSHG-vFJ9f/http%3A%2F%2Fwww.funsoft.com > > >> go to FlexCub white paper. > > >> > > >> Fundamental Software, a.k.a. Funsoft, was spun off from IBM, > > specifically from their P/390 group. > > >> > > >> There are several other, similar vendors out there too. > > >> > > > > > > (snippage) > > > > > >> P.S.S. Also, as a professor at Columbia University in NYC, I may be > > able to get you access to Columbia's museum of IBM history, including the > > parts not open to the public. > > >> Fundamental Software, > > >> Inc.<http://secure-web.cisco.com/1Wy2triybBL1OvjBx384LVSLUl_pYxF5Dnime12fZbZaQ6grGntJz7-JXAnKHTlwgAURSTIc1DyOoxtloScfekiL2psux3CPIB7ipr2v6Out5CHnskvdkThwJr5GBlD-0xGpe_AHrppdvzDlN2nDC5FFE0I7IEFCaYIn09Wj6td0hrOH9X6E4dU9PwrSZoieQitTx3-7mElLsQYD98YPxAsHu79L5zy0Rj0Vpg2QP8TJGAiRaRjuSjkZ7qhPcyj52bU2274yC8izy3vgaPGzSriCgDnTgHPTlIrAGlvtwHNNsNI22h66FtCayg0stbEBeTel6fA6W3-7FixPinGDXZ4wQXxjQUryytnw3cS-wSrqeQyb2EP4PoIlYV5Q3AYJ-X2d1xB_yAVfLcEp1RPnGlKP8mvw9Aqt6aT5M-ou0K0ATlVu1uhMWntaTk_srmPz_/http%3A%2F%2Fwww.funsoft.com%2F> > > >> System/390 on Intel-Based Servers > > >> http://secure-web.cisco.com/1VwG2tbYb1jAjg201pQkV_T2Xk4RWdRqHdSu4I5T1gmotr_54qG7oYif6WOeAFKDwfuDwo2ld5tPxHUl54b5qbjcDUnumLjKF-VB4wavk7zzYSXCUVQ9teLqJ8QsKpJjSYDS1VemU444xopkuo1o2L0vSXIDMWMzYBPkSO0ADwzsRfjl26btiGLyiTfmKdBtE9enuYYdrz2cJdiD5rQM0iEuBMgJ2atTeLlFbKOBMoUlrFBSMDGDZBrJ0cLb0seDlqaooHhB5oinuNR2XvNf7mxySklYrQAWkUvwHBpdyvIrJMNQCRPHE4GWYGTmgnmIxEkza9GU-11HlQIqRaGqty9xU7bv2asl1Q89dLdLwBt6g6JOdQti781ycKR7pTO4ezSBmSiOZgsCoDGKmCrheAZjxpahepAymhjU8ahSEadCKfPctiD14RerSHG-vFJ9f/http%3A%2F%2Fwww.funsoft.com > > >> > > > > > > ---------------------------------------------------------------------- > > > For IBM-MAIN subscribe / signoff / archive access instructions, > > > send email to [email protected] with the message: INFO IBM-MAIN > > > . > > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
