ZyXEL Communications omni series user manual Power On and Self Diagnostics, Interface

S/T Interface

If you have purchased the omni S/T model, you will need an NT-1 device to connect to the network.

To connect your U-interface omni to your ISDN line complete the steps below:

∙Connect the RJ-45 connector to the “ISDN S/T” jack on the back of the omni.

∙Connect the other end of the RJ-45 cable (or RJ-11) to your NT-1.

Figure 2-3 Hooking Up an NT-1 Device

Power On and Self Diagnostics

Once you have completed all of the installation steps above, flip the omni’s On/Off switch to the ON (up) position.

The unit should cycle through a self test sequence, where you should see a series of LED lights blinking (LED, B1, B2, AA). After this cycle is complete, the PWR light should stay on.

If the test routine fails, the LNK LED flashes. Refer to Chapter 15, for more information on self-tests and error codes.

If you have a communication program loaded and active (connected to the same serial port as the omni), you should see the DTR LED should be ON after the self test.

Installing omni External Models 13