User`s guide

41(59)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 A
365/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
1911
Network signalling tables
The command is used to the define current network
signalling protocol for the current ISDN-link.
This command defines also the standard to be used:
ECMA / ETSI or ISO.
1912
Termination in ASB 150
The command is used to define the network
termination for the current ISDN-link. It specifies the
operation mode for layer 1,2 and 3 as well as the link
synchronisation and the actions in case of call collision
and error conditions. There are four choices:
Termination Remote Synchronisation
USER public slave
USER private slave
NETWORK
L1slave private slave
NETWORK
L1master private master
Connetion to a public network:
The link shall always be defined as "User in public
network".
Connection to a private network:
If the opposite side is configured as network then the
link shall be defined as "user in private network".
If the opposite side is configured as user then the link
shall be defined as "Network - L1 master".
If the link is connected via routers (or other equipment)
, that are layer 2 and layer 3 transparent but layer 1
sync master, to the oppsite side, then the link shall be
set as "Network - layer 1 sync slave" ( in both systems)
Valid data: User to public network
User to private
Network L1master to private
Network L1slave to private
Default data : User to public network
1947
Handling of call collisions
This command states the side (A or B) of the network
which is assigned to this interface for the handling of
call collisions.
In symmetrical arrangements call collisions can occur
when both sides simultaneously transfer a SETUP
message indicating the same B_channel.
In order to minimize call collisions, one side of the
connection (side A) assign the lowest available
channel number and the other side of the connection
(side B) assigns the highest.
Valid data: 0,1
0 Side B
1 Side A
Default data: 1