Equipment [rss]

PodSnack: Key System

Posted Wednesday, October 08, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/key_system.mp3
The other day you got a quick summary of what a PBX is. Today Dave tells you about another phone system found on the business premises: the key system . You can listen to (or download) today's PodSnack by clicking here , or you can use the Flash player Read More...

PodSnacks: Private Branch Exchange (PBX)

Posted Monday, October 06, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/pbx.mp3
Let's go back to some basics, and back to telephony. Today, Dave tells you a little bit about what a PBX is, and what the trends are in the industry. You can listen to (or download) today's PodSnack by clicking here , or you can use the Flash Read More...

PodSnacks: Telephone

Posted Thursday, September 18, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/telephone.mp3
My colleagues love to pick on me that I can fill five to six minutes on very basic concepts, and I'm going to do it again today. Our topic is the lowly telephone . I found it interesting to put together. I hope you find it interesting to listen to! Read More...

PodSnacks: Cable Modem

Posted Thursday, May 08, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/cable_modem.mp3
Today we spend a little time in the world of the cable television industry, and we look at a piece of equipment you probably have in your home or business if you get voice, Internet , or transport data services from your local cable company . The device Read More...

PodSnacks: Network Interface Unit (NIU)

Posted Thursday, May 01, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/niu.mp3
OK, some of you apparently like the basics! So let's go back to them. Our topic today is a much used term, but one with a lot of variation in practice. The term is network interface unit (NIU). This is the place where the carrier's network touches Read More...

PodSnacks: The Chained Layers

Posted Thursday, April 24, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/chained_layers.mp3
Back to the OSI Reference Model for a moment. You may sometimes hear reference to the chained_layers . This is a reference to the first three layers of the model, so named because chaining them together creates the fabric of an inter-network. In today's Read More...

PodSnacks: Routers vs. Layer 3 Switches

Posted Monday, March 17, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/layer-3-switch.mp3
The role of a router is relatively simple: it routes packets and operates at Layer 3 of the OSI Reference Model . This industry, however, is never content to leave anything simple. Enter the Layer 3 switch to muddy the waters. In today's PodSnack, Read More...

Battle of the Titans

Posted Friday, February 22, 2008 5:58 AM by mgilbert :: 0 Comments
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Once upon a time there was a major player in routing . They were known as Cisco and all others were but a pale shadow compared to their market position. Where Cisco touted double digit penetration, others could only boast single digit penetration. And Read More...

PodSnacks: Add/Drop Multiplexer (ADM)

Posted Thursday, January 31, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/adm.mp3
In other PodSnacks, we've discussed multiplexing , multiplexers , and digital cross-connect systems (DCS). Today we're going to look at a device that brings these concepts together: the add/drop multiplexer (ADM). This device is part of the SONET Read More...

PodSnacks: Digital Cross-Connect System

Posted Tuesday, January 29, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/dcs.mp3
We've talked before about multiplexing , and we recently talked about a multiplexer . Now we're going to step it up a notch and talk about digital cross-connect systems (DCS). These are the workhorses of carrier networks. They are capable of interconnecting Read More...

PodSnacks: Multiplexer

Posted Thursday, January 24, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/mux.mp3
We've talked before about multiplexing , but we never talked about the device that does the multiplexing: a multiplexer . In today's PodSnacks, I'm going to take a brief look at this piece of equipment, where it might be deployed, and why Read More...

PodSnacks: Repeater

Posted Friday, January 18, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/repeater.mp3
When I don't have any outstanding topic requests, I tend to be wiki -driven. I look for articles in our wiki that have no audio and record a bit, or I look for articles that are needed (because they are linked to in multiple places) and I write one. Read More...

PodSnacks: Frame Relay Access Device

Posted Wednesday, August 22, 2007 8:57 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/frad.mp3
We've spent a couple of PodSnacks on frame relay , but we've never really taken a look at the customer end of the frame relay user-to-network interface (UNI). The device that is placed out there is generically referred to as a frame relay access Read More...

PodSnacks: Key System

Posted Tuesday, July 17, 2007 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/key_system.mp3
I arrived in New Orleans around midday. I moved here almost 30 years ago and lived here for almost two years. The area I went through in Metairie, which lies west of the city, didn't look all that changed or damaged, although significant sections Read More...

PodSnacks: Private Branch Exchange

Posted Monday, July 16, 2007 8:19 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/pbx.mp3
Well, I'm back on the road. This time heading for New Orleans to teach a class. I haven't been down there since Katrina hit, so I am somewhat curious to see first-hand what things look like after two years. I'm told by some of my students Read More...
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