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2.4.4
PRI23 Card
Function
1-port ISDN Primary Rate Interface card (23B channels). NI (North American standard ISDN protocol)
compliant.
LEDs
RJ45
NT1
Accessory and User-supplied Items
Accessory (included): none
User-supplied (not included): RJ45 connector
Notes
•
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 "2.12.1 Starting
the Hybrid IP-PBX".
CAUTION
PRI ports are SELV ports and should only be connected to SELV services.
Switch Settings
Switch
A/B
Type
Usage and Status Definition
Slide
Keep the switch at default A position. Do not change the position of this
switch.
2.4 Installation of the CO Line Cards
Installation Manual
77
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Troubleshooting
