Re: DSC 864 Serial Cable Length

["Steve Foley" <steve.foley@xxxxxxxxxxxxxx>]

I don't know what the specs are for alarm system serial ports, but I
regularly wire 300 foot RS-232 runs for serial terminals (19200 baud).

Probably completely unrelated, but I once saw a spec for a CSU/DSU (digital
modem) that showed a 2 mile limit at 9600 baud.


"Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:WTr5g.14$Uv5.6235@xxxxxxxxxxxxxxxxxx
> that'd probably be about the limit at 9600 baud too.
>
>
> "mhb" <mhb@xxxxxxxx> wrote in message
> news:Une5g.24658$iB2.22474@xxxxxxxxxxxxxxxxxxxxxxxxx
> |I had some time over the weekend, so I went ahead and ran a cat 5e cable
> from the alarm panel to the room I have the pc in.
> |
> | This is what I did as I already had the PCLink panel connection to work
> from:
> | · I arranged the conductors at the panel end the same as you would do to
> make a cat 5e cable.
> | · I crimped on a six conductor male plug leaving off the #1 orange/white
> and #8 brown wires.
> | · I connected the wires at the cat 5e jack as usual.
> | · I took the six conductor flat cable and connected it at the cat 5e
jack
> and plugged it into the serial adapter.
> | · The connection worked without any problems.
> | · I then made a cat 5e cable normal on one end and took the opposite end
> and turned the connector upside down before I crimped it on - so the cable
> was like the flat wire cable supplied with the
> | PCLink. I did this simply thinking I might have a more secure connection
> at the cat 5e wall jack.
> | · I then took an RJ45/DB9 adapter and configured it like the one
supplied
> with the PCLink.
> | · This connection also worked without any problems.
> |
> | In conclusion, 50 feet from the alarm panel and making your own cable
> should not create any problems.
> |
> |
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