Q U I C K S T A R T
SX2 DualPRI V2
3
SX2 QuadBRI / SX2-express QuadBRI
Configuration of the supply voltage in NT mode
An interface configured for NT mode can be fed with 40V from an optional external feed
module. Connect this feed module to the green connector on the upper right side of the SX2
QuadBRI.
Using the SX2 QuadBRI V2 with an external feed module you have to insert additionally
the two outer jumpers on the plug-in slot of the internal feed module (see figure below).
Figure 3 Configuration of the supply voltage in NT mode of SX2 QuadBRI V2
Jumpers 1-4
Connection for external feed
module
Jumper for
internal feed
module
Figure 4 Configuration of the supply voltage in NT mode of SX2-express QuadBRI
For each NT interface to be fed, set two jumpers for each port to which you want to supply
power. Afterwards, ISDN devices that are intended for supply from the public line can also
be operated directly on the SX2 QuadBRI V2.
Please ensure that you use the feed module only for interfaces that are
configured for NT mode. Otherwise the interface will be damaged.
Alternatively, you can mount an internal feed module directly on the SX2 QuadBRI.
Do not use an internal and an external feed module at the same time.
Jumpers 1-4
Connection for external feed
module
Jumper for
internal feed
module
