coM.sat ISDN Basic UMTS

coM.sat ISDN Basic UMTS
Figure 32: NT Configuration
This operating mode enables differences that may possibly occur between the clock
pulses in the telephone network and in the coM.sat ISDN Basic UMTS to be avoided
if the socket labelled “TE/Sync“ is connected with the NTBA connection of the public
network. If the connected PBX is able to use a clock derived from the first TE port on
the second TE port connected to the coM.sat ISDN Basic UMTS and the optional
add-on board for NT synchronization is installed, the TE/Sync port connection may be
omitted if the “Sync from” configuration is set to “NT Port”. Note: Since the presence of
the add-on board is not detected, the parameter field is always enabled in NT mode
even if the add-on board is not employed.
Correct installation of the TA can be identified from the LEDs. If the GSM/UMTS
modules have booked into the respective network, the green LEDs light up
permanently. If one of the modules logs off from the network during operation, the
corresponding green LED of this channel begins to flash slowly. The yellow LEDs are
always off when no call is being made. While a connection is being set up they flash
and they are permanently lit during a connection.
Monitoring of the ISDN lines is switched on or off using the ”Enable ISDN
Watchdog” check box. If the box is checked, the monitoring is active on. A reset is
created: page: file:
11/04/07 73 coMsat ISDN Basic Manual UMTS.doc
Note Protection Mark according to DIN 34!