Installation Manual
H3C AR 18-3XE/18-21X Series Routers
Chapter 2 Installing the
Router
2-10
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For an ISDN U line, you need a NT1 adapter. Then, connect
one end of the ISDN S/T cable to the ISDN port on the NT1
adapter, and the other end to the ISDN BRI port on the
router.
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For an ISDN S/T line, you can directly connect the cable to
the ISDN BRI port on the router.
Caution:
Before connecting a port, read its label carefully; a wrong connection
can damage your router.
2.6.2 Connecting the ADSL2+ Interface
ADSL2+ interface cables are telephone cables. Follow these
steps to connect an ADSL2+ interface cable.
I. Connecting the ADSL2+ over POTS interface
In G. Lite mode, no splitter is required. You can directly connect
one end of the telephone cable to the router and the other end to the
PSTN, and connect the telephone set and router in parallel at the
cable distribution box.
In full rate mode, a POTS splitter is required. Follow these steps
to connect cables:
