I work for a school district that is in the process of bringing on 3
new schools, one of which is a high school with several hundred drops
per closet.  We use IP telephony and all phones in the district are
powered via Power over Ethernet.  The issue that we are facing is that

I'm looking at putting in an ethernet STP instalation for our factory
but i know that the shield should not be connected at both ends to
prevent ground loops (especially in our case: big motors, big power,
long distances). I'm concerned standard UTP will be overwhelmed by

We are converting over our network slowly to gigabit ethernet, and I wanted
to better understand how I can evaluate the quality of the existing copper
wiring.   We are in a building where the twisted pair wiring was done maybe
15 years ago, and the quality is not very high.   I ...

I'm having work done in the house and the walls are off so I can see
the cable.  It's black  & labeled E83032 F660BVV  (2 V's not a 'W'')
CATV.
Anyone know if this is RG59 or RG-6 cable?

What are some of the better brand names for CAT6 patch cables?

what is maximun length of cat 5E or Cat 6 UTP cable can reach 100mbps from
switch to workstation ?

I made my own Ethernet cable to extend our DSL connections to
25 feet. I used a cat5 male connector on each end. I use two ordinary
phone line cords. After I lined them up identically like what cat5 cables
are supposed to I then solder and assemble the cords. I then check the

Here is some background information:
Each Windows XP workstation in the office is connected to an ethernet
port in the wall that connects to a patch panel located in a back room.
In the back room, there is an SDSL modem that is connected to a router.

All,
I am new to phone systems all together. I have been in IT for about 6
years, but the phone systems have always been taken care of by outside
contractors and the PBX was always administered by someone other than

Clueless newbie here.
I have bought a load of crimp on RCA connectors. These ones in fact:
http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=CN06939&N=411
I have also bought a rachet crimp for fitting them.

Is new house wiring done with a surge protector at the entry panel?
If not, why not?
Is this Hubbell surge protector appropriate for residential use?  
http://catalog.graybar.com/servlet/BugsEye

I am trying to troubleshoot a 10Base2 network running over RG58U cable.
I have a length about 500 feet long that is not working for carrying
network traffic. I terminated one end with a terminator that I metered
at 49.0 Ohms. When I then meter the cable it comes back at 54.6 Ohms.

I have several closed circuit cameras running composite video over
RG59.
The plan is to terminate these into a video sender so that I can
recieve them anywhere in the house with a reciever.

Hi. I am installing a cable modem soon, and I have some questions about
the cable coming into my house.
One cable has the following markings:
MEDIAONE E83032 F6SSVV-CRD CATV

I'm looking for a comparison that quantifies the effects of EMI
(electro-magnetic interference) on the following media:
UTP (Cat.3, Cat.5, Cat.7)
STP (Cat.3, Cat.5, Cat.7)