8.    Using ISDN port 
8-2 
When a TA  (Terminal Adapter)  originates a call, TA informs the "transfer capability" to 
JUE-501/JUE-251.   
Then JUE-501/JUE-251 determines the transmission service type depending on that information. 
This relationship is described in below table: 
"Transfer capability" from a TA  Transmission service type determined by JUE-501/JUE251 
Speech  Inmarsat 4kbps Voice 
Audio  Inmarsat 3.1kHz Audio 
UDI  UDI 
RDI  RDI 
* UDI/RDI service is not available for JUE-251. 
When a call arrives to JUE-501/JUE-251,  it  informs a Multiple Subscriber Number (MSN) 
programmed by the user to TA.    TA can identify an arriving service type using this MSN. 
Setup following items: 
(1)  MSN of TA with following TA’s manual 
(2)  MSN of JUE-501/JUE-251 with following below setting procedure. 
[Connection sample] 
Condition 
・  For telephone (MSN=1, transfer capability=Speech) 
・  For Fax (MSN=2, transfer capability=Audio) 
・  For PC (MSN=3, transfer capability=UDI・RDI) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig.8b    Connection sample of ISDN port 
 
MSN for ”Inmarsat 4kbps Voice” = 1 
MSN for ”Inmarsat 3.1 kHz Audio” = 2 
MSN for “UDI” /“RDI” = 3 
MSN=1 Transfer capability = Speech 
MSN=2 Transfer capability = Audio 
MSN=3 Transfer Capability = UDI/RDI