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Groups > comp.sys.apple2.programmer > #3122

Re: Puzzling the SSC Block

From ultramagnus_tcv <mikew@thecomputervalet.com>
Newsgroups comp.sys.apple2.programmer
Subject Re: Puzzling the SSC Block
Date 2016-10-12 09:37 -0500
Organization A noiseless patient Spider
Message-ID <ntlhr8$23v$1@dont-email.me> (permalink)
References (1 earlier) <d9c91587-edbf-4168-882d-8cd4442747ab@googlegroups.com> <ntg4ag$7b8$1@dont-email.me> <x5idnX0qc5ozS2bKnZ2dnUU7-adQAAAA@giganews.com> <ntjtuf$k8f$1@dont-email.me> <c0f1cbdf-acaa-4150-998f-f494acdcaffc@googlegroups.com>

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On 2016-10-12 00:47:13 +0000, roger.shimada@gmail.com said:

> A voltmeter can be used to determine if an RS-232 device is wired as 
> DTE or DCE by measuring TX. TX should normally be negative voltage. (TX 
> goes positive when a one bit is sent.)


Regarding this, TX should normally be negative voltage for DTE? or DCE?

m

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Thread

Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-09 10:39 -0500
  Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-09 11:46 -0500
  Re: Puzzling the SSC Block roger.shimada@gmail.com - 2016-10-09 21:18 -0700
    Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-10 08:16 -0500
      Re: Puzzling the SSC Block Michael J. Mahon <mjmahon@aol.com> - 2016-10-10 12:58 -0500
        Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-11 18:52 -0500
          Re: Puzzling the SSC Block roger.shimada@gmail.com - 2016-10-11 17:47 -0700
            Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-12 09:36 -0500
              Re: Puzzling the SSC Block David Schmenk <dschmenk@gmail.com> - 2016-10-12 09:00 -0700
            Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-12 09:37 -0500
              Re: Puzzling the SSC Block roger.shimada@gmail.com - 2016-10-12 20:37 -0700
                Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-13 21:01 -0500
                Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-16 08:47 -0500
          Re: Puzzling the SSC Block David Schmidt <schmidtd@my-deja.com> - 2016-10-11 21:27 -0400
            Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-12 09:31 -0500
              Re: Puzzling the SSC Block David Schmidt <schmidtd@my-deja.com> - 2016-10-12 11:27 -0400
          Re: Puzzling the SSC Block Michael J. Mahon <mjmahon@aol.com> - 2016-10-12 01:18 -0500
            Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-12 09:39 -0500
    Re: Puzzling the SSC Block ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-10-10 08:26 -0500

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