North America T1/PRI Line

WARNING

To avoid harming the WAN, you must first contact your carrier for approval before connecting the adapter to the line.

CAUTION

In accordance with FCC Rules, Part 68.218 (b), you must notify the telephone company prior to disconnecting the adapter from the line or turning off the power to the adapter’s host system. Without this prior notification, the carrier might temporarily discontinue your T1/PRI service.

Connecting to the line through an external

CSU

If the distance to your carrier is longer than 655 feet (200 meters), or if your carrier does not accept a direction DSX1 connection, and if your iSPAN-PRI adapter does not include an internal Channel Service Unit (CSU), you need to connect an external CSU between the adapter and the network.

Figure 3-3. Adapter connected to an external CSU

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Interphase Corporation