3Com CoreBuilder 5000, Руководство пользователя

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Installing the Module 3-17
Copper Lobe Port
Connections
Copper lobe ports are designed to connect to end stations. They
cannot be used to interconnect modules. See Chapter 2,
Designing and
Expanding the Network , for wiring specifications.
Copper
Ring-In/Ring-Out
Trunk Connections
When connecting Ring-In/Ring-Out ports to a non-CoreBuilder 5000
ring, for example, ONline System Concentrator, IBM 8230 CAU, install a
Jitter Attenuator Daughter Card.
To connect Ring-In/Ring-Out ports:
1 Attach one end of the twisted pair cable (STP-type only) to the copper
Ring-Out port.
2 Attach the other end to a copper Ring-In port on the second module.
3 Interconnect any remaining modules using each module's
Ring-In/Ring-Out ports. To form a full ring, be sure to make connections
using both the copper Ring-In and Ring-Out ports.
When you configure ports 17 and 18 on the active per-port module or
the active per-module media module as RI/RO, install cable adapter
6200ADT-RI on the Ring-In port, port #18, which crosses over the
RX/TX wires in the cable. See Appendix A,
Figure A-2 , for a pinout
diagram.
To provide maximum fault tolerance for multivendor configurations:
■
Ensure that the local ring starts and ends with the copper Ring-In
and Ring-Out ports.
■
Set the correct compatibility mode using the SET TRUNK {slot}
{RING_IN/RING_OUT} COMPATIBILITY_MODE command.