AVT MAGIC AC1 XIP/XIP RM, Hardware & Software Manual

Page: 60 / 176

PAGE 60
W i n d o w s P C S o f t w a r e
4.7.2.2 Transmission
Under Transmission all Audio and data parameters concerning the trans-
mission can be configured.
In delivery status, four standard
Transmission Modes
are available:
– Telephone : Audio transmission with 3,1-kHz (G.711). On the second B
channel an independent telephone or 7-kHz connection can be established.
– 7-kHz (Auto) : Audio transmission with 7-kHz (G.722). The two standard
signalling procedures ITU-T J.52 (often also named H.221 ) and SRT (Stati-
stical Recovered Timing) are supported. On the second B channel an inde-
pendent telephone or 7- kHz connection can be established.
– MPEG 1B (Auto) : Audio transmission with ISO/MPEG Layer III or optio-
nally Layer II (order number 450305) and a data rate of 64-kbit/s (1 B). For
the signalling, the most important procedures are available. On the second
B channel an independent telephone or 7- kHz connection can be esta-
blished. However, a second MPEG connection cannot be established.
– MPEG 2B (Auto) : Audio transmission with ISO/MPEG Layer III or optio-
nally Layer II (order number 450305) and a data rate of 128-kbit/s (2 B). For
the signalling, the most important procedures are available.
You can create further user defined transmission modes according to your re-
quirements under
User Defined
. These transmission modes are also available
when the system is controlles via the front keypad and display.
NOTE
The standard transmission modes work with AutoDynamicSync (ADS) ,
which guarantees an automatic synchronisation - also with systems from
other manufacturers. Further details can be found in CHAPTER A1, Page
137.