RoadRunner
U S E R S G U I D E
27
<TA201><Setup><
country
><LDN>
path or the
CLD
command.
LLC (Low Level Command) State (UK Only)
Although this menu item appears under all countries, it is only necessary
to set the LLC state in the United Kingdom. Different areas in the UK
require different settings. If your TA201 cannot dial properly with the
default setting, toggle the setting. Remember that you must set each ‘B’
channel to the proper state. Use the
<TA201><Setup><
country
><LLC>
path or the
CLL
command.
Sub-Address and Interface Mode
Sub-addresses are required when using the German 1TR6 switch
protocol. Like the MSN used with DSS1, the sub-address enables you
to connect several codecs (terminal adapters) to the same ISDN bus.
For every terminal adapter, you need two sub-addresses (EAZ
numbers), one for each 64 kb/s channel, numbers between 1 and 8.
<TA201><Setup><
country
><Sub addr>
or use the
CSA
command.
The
RoadRunner
’s interface mode has a different meaning for the
TA201 terminal adapter when not used in North America. Some ISDN
implementations in some countries require LLC (Low Layer
Compatibility) to be turned off. For example, some DSS1 networks in
the United Kingdom require LLC and Interface to be turned OFF.
<TA201><Setup><
country
><I/F>
or use the
CTF
command.
Reset
After the above parameters have been set, it is necessary to reset the
TA201 Terminal Adapter. The
CTR
command
<TA201><Setup><
country
><Reset>
is used to reset the internal terminal adapter. The TA201 and TA301
currently return no information after a reset.
After resetting the
TA201, wait at
least 30 seconds
before attempting
to dial.