RoadRunner
U S E R S G U I D E
26
or the
CLL
command. The LLC state must be set for both ‘B’ channels.
Reset
After the above parameters have been set, it is necessary to reset the
terminal adapter. The
CTR
command is used to reset the internal
terminal adapter.
<TAx01><Setup><N. America><Reset>
The TA201 and TA301 currently return no information after a reset.
Terminal Adapter TA201 Configuration, Non-North American
Operation
The TA201 terminal adapter provides one S/T interface for one ISDN
BRI (2x64 or 2x56 kb/s) line. The TA201 contains all country specific
configuration and provisioning information in memory, and there is no
need to change ROM chips when using your
RoadRunner
in a different
country. If the desired country is not listed, try the Germany setting
with switch type DSS1.
Selecting Country and Switch Type
It is necessary to tell the TA what country and switch protocol is being
used by the PTT central office. The ISDN service provider will give this
information to you. You only need to set the switch type once for each
TA since the switch governs both “B” channels in an ISDN line. Select
<TA201><Setup><
country
><Sw type>
where
country
= Germany, France, UK or Japan
then select the appropriate switch type (Germany only), either DSS1 or
1TR6. The
CCC
command is used for selecting the country and the
CSW
command is used for setting the switch type from a terminal. For
countries not listed, first try selecting Germany, with DSS1 as the switch
type.
LDN / MSN Number
The MSN (Multiple Subscriber Number) allows you to connect several
codecs (terminal adapters) to one ISDN bus if the DSS1 Euro-ISDN
protocol is used. Each TA201 interface requires two MSN numbers, one
for each 64 kb/s channel. You do not need to enter the whole MSN,
you just have to enter the last different digits. For example, if your
MSN for line 1 is 8115517571 and for line 2 is 8115517581, then you only
need to enter ‘71’ and ‘81’ for the MSNs. Use the
After resetting the
TA201 or TA301,
wait at least 30
seconds before
attempting to dial.