CSU/DSU hookup? CCNA

Link2057 · 02-26-2007, 08:32 PM

Ok im working on my CCNA and I'm currently a Voice/Data Tech, not the best job but its a start. anyway I picked up some free equipment a kentrox satellite 651 DSU and I was confused by the interfaces on the back, I looked up a diagram online and I see that the DSU connects to the router. The network end I believe connects to the ISP's T1...now here is my question

ever since I been a Voice/Data tech all the T1's that are brought in by Qwest or what ever phone company. They bring in a box and hook up a pair of lines to it which has a card inside of the box. and below the box is a RJ-45 style plug-in. Now I usually hook this up to the routers T1 port/interface so where the heck does the CSU/DSU come into play? and how does this interface of the CUS/DSU I have connect to the a T1? i've been searching for days please help..Dustin(CCNA student)

**JamesO** · 02-28-2007, 08:07 AM

First order of business, Google is your friend!

http://www.webopedia.com/TERM/C/CSU_DSU.html

http://searchnetworking.techtarget.c...211866,00.html

http://www.alliancedatacom.com/techn...dsu/csudsu.asp

http://www.gdc.com/inotes/pdf/sc5000wp.pdf

JamesO

02-26-2007, 08:32 PM	#1 (permalink)
Link2057 Registered User Join Date: Aug 2006 Posts: 26 OS: XP	CSU/DSU hookup? CCNA Ok im working on my CCNA and I'm currently a Voice/Data Tech, not the best job but its a start. anyway I picked up some free equipment a kentrox satellite 651 DSU and I was confused by the interfaces on the back, I looked up a diagram online and I see that the DSU connects to the router. The network end I believe connects to the ISP's T1...now here is my question ever since I been a Voice/Data tech all the T1's that are brought in by Qwest or what ever phone company. They bring in a box and hook up a pair of lines to it which has a card inside of the box. and below the box is a RJ-45 style plug-in. Now I usually hook this up to the routers T1 port/interface so where the heck does the CSU/DSU come into play? and how does this interface of the CUS/DSU I have connect to the a T1? i've been searching for days please help..Dustin(CCNA student)

02-28-2007, 08:07 AM	#2 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	First order of business, Google is your friend! http://www.webopedia.com/TERM/C/CSU_DSU.html http://searchnetworking.techtarget.c...211866,00.html http://www.alliancedatacom.com/techn...dsu/csudsu.asp http://www.gdc.com/inotes/pdf/sc5000wp.pdf JamesO