[Asterisk-Users] Problem connecting a TE410P to an E1/IP equipment

[Peter Svensson]

On Wed, 23 Feb 2005, Johan Bilien wrote:

> I'm trying to connect a PC with a TE410P to an E1/IP equipment.
> Unfortunately I keep getting a yellow alarm from zaptel (in zttool) 
> and a Loss of Framing alarm on the remote equipment.
> 
> The E1/IP is connected on the other side to a PRI interface on a GSM
> MSC.
> 
> I have configured the span as:
> span=1,1,0,ccs,hdb3 (also tried span=1,0,0,ccs,hdb3)
> 
> and the channels as:
> bchan=1-15,17-31
> dchan=16
> 
> The LED on the port is green.
> 
> I tried to load both the se and us tonezones (I'm in Sweden).
> 
> Is there a way I can know why the yellow alarm was triggered? And do
> you have ideas why the other equipment reports a LOF alarm?

Yellow alarm is the same as "remote alarm" - i.e. the other side is saying 
that it cannot hear you. Given the Loss Of Framing on the other end this 
seems resonable.

Is the remote end set to use CRC4? Try adding ",crc4" to the end of the 
span line.

Peter