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Article #71747Re: Where! Serial Switcher
From: John Hamilton
Date: Mon, 13 Nov 1995 00:00
Date: Mon, 13 Nov 1995 00:00
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In article: <816289759.19113@xeon.demon.co.uk> mo@xeon.demon.co.uk writes:
>
> Have been looking to buy a serial switcher to use 2 modems
> between the one Pc but cant seem to find one anywhere,could anyone
> point me in the right direction,new or secound hand.Oh it must be
> auto switching.
>
> Thanks
> +
>
Q1. Why do you require 2 modems on the same com port ?
Q2. How would you intend selecting between the 2 modems if not manually ?
I know that some 'auto-switches' simply switch to the a connection that raises a
contol line and becomes free when the control line is dropped; while others simply
switch when any data is present and time-out when quiet for a determined period of
time.
The only way I can see this working is either:
i) switch on the required modem, thus raising DSR or CTS (hardly automatic)
ii) the modems are auto-answering and 'switch' when one of modem sends text such as
RING, CARRIER or CONNECT or whatever.
I am aware of some smart-switches that come with some software (pop-up-menus ?) which
runs on the PC, but I have no experience of these, perhaps someone else can give
information on their suitability.
Good luck,
--
John Hamilton _/ _/ _/_/ _/ _/ _/ _/ _/ _/
S.Queensferry _/ _/ _/ _/ _/_/_/_/ _/_/_/_/ _/_/
Scotland _/_/_/_/ _/_/_/_/ _/ _/ _/ _/ _/ _/ _/
_/ _/ _/ _/ _/ _/ _/ _/ _/ _/
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1036bc,9812cbdfb4f949a6 X-Google-Attributes: gid1036bc,public From: John Hamilton <Hammy@mahame.demon.co.uk> Subject: Re: Where! Serial Switcher Date: 1995/11/13 Message-ID: <398704308wnr@mahame.demon.co.uk> X-Deja-AN: 119294830 x-nntp-posting-host: mahame.demon.co.uk references: <816289759.19113@xeon.demon.co.uk> x-broken-date: Monday, Nov 13, 1995 21.20.51 organization: Hame @ Queensferry reply-to: Hammy@mahame.demon.co.uk newsgroups: demon.tech.pc