System Ports; 10/100Base Ethernet Lan Ports - Nortel 1010 Series Installing

34 Appendix A Technical specifications

System ports

The Contivity 1010/1050/1100 system board provides the following interfaces:
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This section provides information about the 10/100BASE Ethernet LAN ports and
the serial port on the system board.

10/100BASE Ethernet LAN ports

The Contivity 1010, 1050, and 1100 have two internal LANs built in:
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The LAN 1 connector on the front of the Contivity 1010, 1050, and 1100 is an
Ethernet MDI configuration and requires an RJ-45 straight-through cable.
Depending on whether you will use the interface for 10BASE-T or 100BASE-TX
operation, select cables for the interfaces as follows:
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314961-E Rev 00
10/100BASE Ethernet LAN ports
Serial port
LAN 0 is the private LAN and also the LAN to use for Web management.
— The LAN 0 connector on the front of the Contivity 1010 is an Ethernet
MDI configuration and requires a crossover cable (included with your
shipment).
— The LAN 0 connectors on the front of the Contivity 1050 and 1100 are an
Ethernet MDI-X configuration. These ports support the Auto-MDI-X
feature, so either straight-through or crossover cables can be used.
LAN 1 defaults to a public LAN. The software refers to the LAN 1 port as
slot 1, interface 1.
100BASE-TX connections require Category 5 twisted-pair wire. The
100BASE-TX specification supports 100 Mb/s transmission over two pairs of
Category 5 twisted-pair Ethernet wiring: one pair each for transmit and
receive operations.
The maximum recommended cable segment length is 100 meters between a
100BASE-TX repeater and a workstation (due to signal timing requirements).
This wiring scheme complies with the EIA 568 wiring standard.
10BASE-T connections can use Category 3, 4, or 5 twisted-pair wiring.