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Connecting the ta128 to your isdn line, U interface model – ZyXEL Communications Omni TA128 User Manual

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8

Connecting the TA128 to Your ISDN Line

The TA128 comes with a choice of two types of ISDN line
interfaces:

S/T interface - This can only connect to your NT-1 (Network

Termination) device.

Warning: Do not under any circumstances connect directly to the ISDN

wall jack.

U interface - This allows you to connect directly to your ISDN

wall jack.

Warning: The ISDN jack is for ISDN line connection only. Connection of a

phone line may result in damage to your Terminal Adapter.

Attention:

La fiche ISDN est destinée uniquement pour la connexion

sur une ligne RNIS. La connexion sur une ligne téléphonique
peut endommager votre adaptateur de terminal.

U Interface Model

If you have purchased the TA128 U-interface model, you can
connect the U-Interface directly to the wall jack.

In most cases, the ISDN jack installed by the phone company is a
RJ-11 jack (except in Canada, where RJ-45 jack will be installed),
and the U-Interface jack on the back of the TA128 is a RJ-45 jack.
A RJ-45 to RJ-45 (or RJ-11 to RJ-45, depends on your regional
distributor’s request) phone cable is included with your TA128.

To connect the TA128 to your ISDN line:

Connect the RJ-45 connector to the “ISDN U” jack on the

back of the TA128.

Connect the other end of the RJ-45 cable (or RJ-11) to your

wall jack.