3.5 Information about the Physical Trunk Cards
PRI23 Card (KX-TDA0290)
1-port ISDN Primary Rate Interface card (23B channels). NI (North American standard ISDN protocol)
Accessories and User-supplied Items
Accessories (included): none
User-supplied (not included): RJ45 connector
Connect this optional service card to the CO line through an NT1; do not connect to the U interface
of the CO line directly.
To confirm the CO line connection, refer to "Confirming the CO Line Connection" in "3.14.1 Starting
PRI ports are SELV ports and should only be connected to SELV services.
Usage and Status Definition
Keep the switch at default A position. Do not change the position of