Specifications

10 Connecting to a Third Party NT1
Connecting to a Third Party NT1
To connect to a third party NT1, you must use the ISDN S/T Cable.
This cable includes interface circuitry which is not normally provided
by the third party NT1 (but which is provided by Eicon’s NT1).
Plug the ISDN S/T Cable into the DIN-4 port on the card as
illustrated in Figure 4.
• In North America and Australia, you may need to insert the
RJ-45 plug into the terminating resistor, and then insert the
terminating resistor into the S/T connector. The next section,
“Termination,” explains when to use the terminating resistor.
• In the rest of the world, insert the RJ-45 plug directly into the S/T
connector. Do not install the terminating resistor.
Plug the other end of the RJ-45 cable into the S/T port on your NT1.
Figure 4 shows how the ISDN S/T Cable, the terminating resistor
(when required), and the RJ-45 plug connect together.
Figure 4. Connecting the ISDN S/T Cable
The interface cable contains fully passive components and does not
affect the energy consumption or other specifications of the
Eiconcard. This passive interface is required to ensure regulatory
compliance and guarantee proper functionality.
ISDN S/T Cable
Terminating resistor
(if required)
RJ-45 plug
DIN-4 port