4.5.2 PRI23 Card (KX-NS5290)
Function
1-port ISDN Primary Rate Interface card (23B channels). NI
(North American standard ISDN protocol)
compliant.
Accessories and User-supplied Items
Accessories (included): Spacer ´ 3, slot cover ´ 1
User-supplied (not included): RJ45 connector, Twisted pair cable
CAUTION
• When
connecting this optional service card to the CO line, connect through an NT1; do not connect to
the U interface of the CO line directly.
• PRI ports are SELV ports and should only be connected to SELV services.
Notice
• The cable to connect to the ISDN Primary Rate Interface port of the PRI23 card should be CAT 5
(Category 5) or higher.
Note
• To
confirm the CO line connection, refer to "Confirming the CO Line Connection" in "4.13 Starting the
PBX".
Pin Assignments
No. Signal Name Level [V] Function
1 RX+ (+) Receive data (+)
2 RX- (-) Receive data (-)
3 Reserved – –
4 TX- (-) Transmit data (-)
5 TX+ (+) Transmit data (+)
6-8 Reserved – –
122 Installation Manual Document Version 2016-03
4.5.2 PRI23 Card (KX-NS5290)
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