12
nators. If the terminators do not measure 50 ohms
+/- 1%, replace the terminator. Measure the coaxial
cable with a 50-ohm terminator attached to one
end. The total resistance of the cable plus the
terminator should be no more than a few ohms
more than the terminator alone.
Section Six - Cable Information
The MaxTech NX-32PCI network adapters support
both Coax and UTP cable schemes used in Ethernet
networks.
10Base-T networks use unshielded twisted-pair
cable and 8-pin RJ-45 modular connectors. Use
22-26 AWG, 2- or 4-pair, 100 ohm/ft. UTP Cat-
egory 3 or better cable. The cable must use solid
copper conductors and UL codes CM, CMR, and
CMP are required. The computer on the network is
connected via a star topology (i.e. each node is
connected to a HUB, not to each other). Maximum
cable length is 328' (100 m).
10Base-2 networks use a single conductor coaxial
cable and BNC connectors. Use only RG-58A/U or
RG-58C/U coaxial cable. Each network node is
connected to the coaxial cable via a T-connector
(included). The minimum distance between T-
connectors is 1.6' (0.5m). The T-connector must be
plugged directly into the network adapter (no cable
is allowed between the T-connector and the
adapter). No more than 30 connections are al-
lowed per segment and the maximum segment
length is 607' (185 m). The cable must be termi-
nated at each end by one 50-ohm terminator.
Section Seven - Specifications
Network Standard:
IEEE 802.3
Ethernet Interface:
32-bit PCI Local bus
I/O address:
Automatically determined by configu-
ration space
