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Hardware installation 29
Models 2603, 2621, and 2635 Getting Started Guide 3 • Initial Configuration
Installing an interface cable on the IPLink 2603’s T1/E1 interface port
The IPLink Models 2603/K and 2603/T come with a selectable T1/E1 WAN interface (see figure 4). Located
on the back of the IPLink, the T1 and E1 interfaces are presented on an RJ-48C connector with selectable line
impedances of 100-ohms for T1 and 120-ohms for E1 lines (see figure 5). The 2603/K also comes with dual
BNC for alternate connection to unbalanced 75-ohm E1 lines (see figure 6 on page 30).
Figure 4. Rear View of the 2603/T showing location of Ethernet and WAN connectors
Figure 5. RJ-48C pinout diagram
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
CAUTION
Crossover
10/100
Ethernet
WAN
MDI-X
Crossover
10/100
Ethernet WAN
Power
Power
MDI-X
WAN connector
(RJ-48C)
Ethernet connector
(RJ-45)
12345678
RX RX TX TX