upgrading and repairing PCs technicians ... - 400 Bad Request

Network Cable Connectors 277
Table 11.7 Network Data-Link Protocols Summary Continued
Network Type Speed
Max Number
of Stations Cable Types Notes
Gigabit Ethernet 1000Mbps Per segment: 2 Cat 5 UTP Gigabit Ethernet
can be interconnected
with Fast
and/or standard
Ethernet through
use of dual-speed
hubs, switches
and routers.
Token Ring 4Mbps or 72 on UTP1 UTP1, Type 1 High price for
16Mbps 250-260 on STP2, and NICs3 and MAUs4 type 1 STP2 Fiber optic to interconnect
clients; primarily
used with IBM
mid-size and
mainframe systems.
1. UTP = Unshielded Twisted Pair
2. STP = Shielded Twisted Pair
3. NIC = Network Interface Card
4. MAU = Multiple Access Unit
Network Cable Connectors
Several types of network cable connectors are available. Table 11.8
summarizes these and indicates which ones are in current use.
Table 11.8 Network Cable Connectors
Connector Type Used By Notes
DB-15 Thick Ethernet Used a “vampire tap” cable from the
connector to attach to the main cable;
obsolete.
DB-9 Token Ring Obsolete.
BNC RG-62 ARCnet Thin Ethernet uses T-connector to enable
(obsolete), pass-through to another station or a
RG-58 Thin Ethernet terminating resistor to indicate end of
network segment.
Obsolete in most installations; BNC still
used in small networks or to connect
hubs.
RJ-45 Newer Token-Ring, Twisted-pair cabling overwhelming
10BASE-T Ethernet,
Fast Ethernet,
Gigabit Ethernet
favorite for most installations.
While virtually all newly installed networks today with conventional
cables use twisted-pair cabling, many networks are mixtures
of twisted-pair and older cabling types. Token-Ring Network
Interface cards and Ethernet cards with all three of the popular