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3.5 Information about the Physical Trunk Cards
3.5.10 PRI23 Card (KX-TDA0290)
Function
LEDs
RJ45
A B
To NT1/Extension
Accessories and User-supplied Items
Accessories (included): Ferrite core × 1
Notes
•When connecting this optional service card to the trunk, connect through an NT1; do not connect to the U interface of the trunk directly.
•When connecting the RJ45 connector, attach the included ferrite core (except in Canada, where the ferrite core is not necessarily required). Refer to "3.2.9 Attaching a Ferrite Core".
•This optional service card can be used for either trunk or extension connection, by setting the A/B switch or using the connector with appropriate pin assignments.
•To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "3.15.1 Starting the PBX".
CAUTION
PRI ports are SELV ports and should only be connected to SELV services.
Switch Settings
Switch | Type | Usage and Status Definition |
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A/B | Slide | Select A (default) for trunk or B for extension use. |
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