Appendix C: Network Planning and Configuration
Page C-6
MicroMMAC Installation Guide
C.1.5 10BASE2 Thin Coaxial Cable
The following specifications show 10BASE2 thin coaxial cable
requirements for the EPIM-C:
Cable Type
50 ohm RG-58A/U type coaxial cable must be used when making up a
10BASE2 thin coaxial cable segment.
Length
The 10BASE2 thin coaxial cable segment must be no longer than 185
meters (203.5 yards).
Terminators
Terminate each end of a 10BASE2 thin coaxial cable segment.
Connectors
A maximum of 29 T-connectors may be used throughout the length of
cable segment for host connections. If an excessive number of barrel
connectors are used within the cable segment, such as finished wall plates
with BNC feed-throughs, then a reduced number of host connections may
be required. For special network design, contact Cabletron Systems
Technical Support.
Grounding
For safety, ground only one end of a 10BASE2 thin coaxial cable
segment. Do NOT connect EPIM BNC ports to earth ground.
Connecting a 10BASE2 thin coaxial cable segment to earth
ground at more than one point could produce dangerous
ground currents.
