From: Hotmail (jthao1@xxxxxxxxxxx)
Date: Sat Dec 29 2001 - 02:50:16 GMT-3
Do you know how to do this for the TR UTP interface?
Does anybody know what the pinout is for the TR UTP port on 2523 routers?
Joseph
----- Original Message -----
From: "Reinhold Fischer" <Reinhold.Fischer@gmx.net>
To: <ccielab@groupstudy.com>
Sent: Friday, December 28, 2001 3:26 PM
Subject: How to build a Loopback Plug for a TR-Interface`
> Hi all,
>
> here is how to build a 'Loopback-Plug' so a Tokenring
> interface on a router will come up without having to
> connect it to a MAU or a TR-Switch:
>
> You need:
> 1 pcs 9-pin male DSUB Connector (preferably with case)
> 2 pcs resistor 4.7 kilo-Ohm
> 2 pcs capacitor 100 nanofarad
> 1 pcs stripe of insulation tape
>
> soldering iron, some solder, calm hands ;)
>
> 1. solder one resistor and one capacitor parallel
> between pin 6 and pin 9 of the DSUB Connector
>
> 2. solder one resistor and one capacitor parallel
> between pin 1 and pin 5 of the DSUB Connector
>
> 3. put some rubber tape between the capacitor/resistor pack
> of step one and the one of step 2 so they cannot get in
> contact with each other.
>
>
>
> +100nano+
> | |
> +4.7kilo+
> _|_______|_
> \5 4 3 2 1/
> \9 8 7 6/
> |-----|
> | |
> ++ ++
> | |
> +100nano+
> | |
> +4.7kilo+
>
>
>
> Done !
>
> Mail me offline if you want to have a jpg with the backview of
> the plug. I think groupstudy would remove the attachment from the
> mail.
>
>
> Greetings !
>
> Reinhold, #8571
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:32:49 GMT-3