The possibility exists to take 10/100 Ethernet into a SONET/SDH system and multiplex it up onto a OC-12 or OC3 or any SDH/SONET rate it will fit into. The issue is this: Does the provider have a system that will accept an Ethernet interface card? I...
The T1 to E1 conversion is actually quite simple in theory to set up. It is accomplished by using a device that can covert the signals from one to the other. The device we use is call the T::DAX. In order to facilitate this the E1 end is restricte...
Have you troubleshot the line? The RAI means Remote Alarm Indicator. This is sent back on the line when there is a failure down stream. For example if you have four nodes inbetween you and the end point and there is a failure inbetween nodes B and...
Signaling is normally done in one of two methods: Channel Associated Signaling (CAS) or Common Channel Signaling (CCS). Channel Associated Signaling (CAS) is also know as Bit-Robbing or Bit-Robbed Signaling. Bit-Robbing is one of the first and still...
CRC errors are almost always cables. I would start with troubleshooting the cables. They may test fine but once they are on the router interface the CRCs start to climb. Try a few different cables and see if you see any difference in the rate the ...
