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E1 Interface 43
Model 3086FR ATM IAD User Guide 4 • Connecting the DSL and data ports
Figure 12. E1 interface with RJ-48C jack (120–ohm) and dual BNC (75-ohm) connectors
E1 Interface Connection
The 3086FR will usually connect either to a local E1 device, or to a Telco terminated E1 line jack.
• To connect to the 3086FR E1 port and a local E1 device, use an E1 crossover twisted-pair cable. A crossover
cable connects the transmit pins of the Model 3086FR’s E1 port to the receive pins of the device attached to
this port and vice versa. Check the third party E1 equipment documentation for pinout information and
cable requirements. If the E1 connection is made via the BNC connectors, connect the TX BNC of the
3086FR to Recive (RX) BNC of the local E1 device, and vice versa.
• To connect the 3086FR’s E1 port to a Telco terminated E1 line jack, use a straight through twisted pair
patch cable. Consult with your E1 service provider for exact pinout information and cable requirements.
The 3086FR T1/E1 port can be configured via HTTP/SNMP or command line interface (CLI). This section
discusses HTTP (web server) configuration, for CLI and SNMP information see
Appendix E on page 165.