Optical Networking

CWDM PON

I have to design a passive optical network that uses WDM technology ( CWDM in particular ) for triple play broadband services including HDTV to residential and buisness customers. There is also a hospital which provides long distance medical imaging and 2 colleges that has distance learning (live...

HTU-E1 Leased Line Modem

hi,can anyone tell me how to take loop test on HTU E1 Leased line modem to test physical connectivity

cannot ping from router-2

hi all i am in an ISP.I have a cisco 3600 router and Keymile LECAR modem pair(V.35/G.703)at my end and cisco 1700 series router and keymile LECAR modem pair at the customer end.From my end when i see from router i found the line is up but when i try pinging the router at the client end i...

cannot ping from router

hi all i am in an ISP.I have a cisco 3600 router and Keymile LECAR modem pair(V.35/G.703)at my end and cisco 1721 router and keymile LECAR modem pair at the customer end.From my end when i see from router i found the line is up but when i try pinging the router at the client end i cannot.when...