Ethernet Interface - Cisco VCO/4K Mechanical Assemblies

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Description

3.6 Ethernet Interface

The CPU employs a Local Area Network Controller for Ethernet (LANCE) to implement an

Ethernet transceiver interface. The balanced transceiver signal lines from the CPU are coupled

to an onboard transformer to signal lines that go through the SWI, Outer B/P and control

midplane cards, and terminate on the industry-standard DB-15 connector on the

Storage/Control I/O Module faceplate. Pin and signal assignments for this DB-15 port are

listed in Table 3.

Table 3: Ethernet Port Pin and Signal Assignments

To implement Ethernet links, you must purchase the optional Ethernet Communications

Package available from Cisco Systems. This package contains supporting software and the

Cisco VCO/4K Ethernet Guide which covers the cabling requirements and implementation

strategies. You must provide cables, transceivers and other components to establish Ethernet

links.

1-10

Cisco VCO/4K Mechanical Assemblies

Signal

C+

T+

R+

GND

C–

T–

R–

+12V

Signal Name

Collision + (Input)

Transmit + (Output)

Receive + (Input)

Ground

Collision – (Input)

Transmit – (Output)

Receive – (Input)

+12 Vdc Power

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