CHAPTER 2
2-20 IEN HARDWARE REFERENCE 940043-002
Rear Panel
The rear panel of the IEN 5000 chassis contains the cabling connectors. There are
seventeen DB25 connectors, labeled 0 through 15 and CPC. The CPC connector
corresponds to slot C. There are sixteen RJ11 connectors, labeled 0 through 15. Figure
2-14 illustrates the rear panel of the IEN 5000 chassis.
Figure 2-14 IEN 5000 Rear Panel
The DB25 connectors are used with adapter interfaces or cables to support media in
addition to the standard RS232 DTE interface.
Note: When using the DB25 connector for RS232, the connector is DTE. To perform as DCE, use the
appropriate interface adapter cable. Refer to Chapter 4, Cable Specifications & Adapters for
more information about specific cabling parameters.
The RJ11 connectors are used with adapter interfaces or cables to support media in
addition to the standard RJ11 dial capability. For example, UTP Token Ring or Ethernet,
DS1/T1, DDS, and 4-wire leased line.
There is also a bus extension connector on the back of the IEN 5000 chassis. Refer to
Chapter 5, Bus Extension for more information about IEN 5000 bus extension capabilities.
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