The Cat 5 standard has been updated to the Cat 5e standard. However, the crimping configuration remains the same, so these instructions will work for either standard.
Step 1: Materials
~ Cat 5 cable
~ 8P8C (8 pin 8 contact) connectors - (these are commonly referred to as "RJ45" connectors)
~ A modular connector crimping tool
~ Wire cutters/strippers (may not be needed depending on crimping tool)