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Connecting Power to the Unit
7915-A2-GB20-20
Procedure
1. Connect one end of the supplied 14 twisted-pair network cable into the rear
panel DSL jack. Connect the other end to your SDSL network interface.
NOTE:
Do not use a flat VF network cable, as this may severely degrade the
performance of the termination unit. Use only twisted-pair network cable.
2. V.35/V.11-compatible units only: Clamp the supplied ferrite bead around the
network cable as close as possible to the rear panel DSL jack. The ferrite
bead suppresses RF interference and is required to meet compliance
standards.
3. V.35/V.11-compatible units only: Use either a DB25-to-V.35 adapter cable or
a cable with a DB25 connector (see
Assignments
in Appendix B for pin assignments), depending on whether you
need a DB25 or V.35 (34-pin) connector.
Connect the other end to your V.35/V.11 equipment.
4. G.703-compatible units only: Connect a G.703 interface cable into the
appropriate 75-Ohm RCV and XMT connectors or 120-Ohm connector on the
rear panel. Connect the other end to your G.703 equipment.
As described in Chapter 1, there are several options for power cords, depending
on your power source (120 Vac, 230 Vac, or – 48 Vdc).
Your package may also include a country-specific adapter. To obtain information
on the various power cord adapters available, refer to
Service Information
on page A at the beginning of this User's Guide.
Plug the power transformer into an available 115 or 230 Vac power outlet, running
the power lead to the unit housing. Connect the power lead into the – 48 Vdc plug
on the rear panel.
September 1997
Installing the Unit
DB25-to-V.35 Adapter Cable Pin
Warranty, Sales, and
2-3
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