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Installation
Chapter 2
After unpacking the unit, immediately inspect it for shipping damage.
If damage is discovered, file a claim immediately with the shipping
carrier, then contact ADTRAN Customer and Product Service; see the
last page of this manual for phone numbers.
NETWORK CONNECTION
The ISU 512e supports either dial or leased operation. Four 8-pin RJ-45
modular jacks on the rear panel of the ISU 512e allow connection to the
network service. (See Figure 2-1.)
Figure 2-1. ISU 512e Rear Panel
Dial operation uses the ISDN Basic Rate interface and allows the ISU
512e to dial out over the ISDN network. When used in this mode of op-
eration, the telephone company provided ISDN Basic Rate interface is
connected to the RJ-45 connectors marked ISDN IFC #1, #2, #3, and #4.
Connect the Basic Rate interfaces to the ISU 512e in order, starting
with ISDN IFC #1, until the maximum number of lines (four) is
reached.
61203086L1-1
ISU 512e User Manual
2-1
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