Configuring the ISDN and analog interfaces
2-15
•
Automatic
for automatic selection of the operating mode (only in
TE mode)
•
DSS1 TE (Euro ISDN)
for connection to a point-to-multipoint
ISDN bus.
•
DSS1 TE point-to-point
for connection to a point-to-point ISDN
bus.
•
1TR6 TE (German ISDN)
for connection an ISDN bus which
uses this protocol (in Germany only).
•
DSS1 NT (Euro ISDN)
to provide point-to-multipoint ISDN
interfaces
•
DSS1 NT reverse
to provide point-to-multipoint interfaces while
maintaining the ISDN timing of the connected ISDN line, please
refer to ’ISDN connection timing’
•
DSS1 NT (point-to-point)
to provide point-to-point ISDN
interfaces
•
DSS1 NT point-to-point reverse
to provide point-to-point
interfaces while maintaining the ISDN timing of the connected
ISDN line, please refer to ’ISDN connection timing’
SwyxConnect 1724
only
•
DSS1 timing
to adopt the ISDN timing of the connected ISDN
line (please refer to ’ISDN connection timing’), without
signaling and other functions
•
Leased-line GRP0
for Group 0 leased lines over ISDN
• Off
NT mode operation always has to be set manually. With the
SwyxConnect 1722, if the ISDN 2 connector is set to 'Off' there may
be a connection to ISDN 1 in the case that the device has been set up
for life-line support by means of the DIP switches.
If an ISDN device is attached to an ISDN interface that is set to auto
and is not recognized properly, set the required protocol manually.
2.5.4
ISDN connection timing
To ensure trouble-free transmission, all of the components in the
ISDN system (Swyx VoIP Router, upstream and downstream ISDN
PBXs, ISDN terminal devices and external ISDN telephone
networks) have to use the same ISDN timing. In the Swyx VoIP
Router, an ISDN interface in TE mode can take on the timing of the
ISDN line. The TE interface enables the device itself to behave like a
terminal device. In NT mode, the Swyx VoIP Router can pass on the
Summary of Contents for SwyxConnect 1722
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