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Figure 4.1 |
Illustration of twisted pair wiring. A plastic coating on the surface
of each wire prevents the metal in one wire from touching the metal in the
other. The twists help reduce interference.
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Figure 4.2 |
Enlarged cross-section of a coaxial cable with major parts identified.
Although a coaxial cable is stiffer than a single wire, it can be bent.
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Figure 4.3 |
Illustration of a satellite used to provide communication across an
ocean. The satellite receives radio signals from one ground station, and
transmits them to another.
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Photo img1_001 |
Modem showing RS-232 connector for serial connection to computer and
RJ-11 jack for connection to phone line.
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Photo img1_014 |
RS-232 connectors, showing wiring for three-wire connection.
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Photo img1_024 |
RS-232 connector with control and data wiring.
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Photo img1_033 |
Optical fiber cables connected to an ATM switch.
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Photo img1_034 |
Optical fiber connections into an ATM NIC; this computer also has
an AUI Ethernet connection just below the orange optical fiber cable.
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Photo img1_049 |
Base-station antenna for a wireless radio-frequency network; this
antenna is attached to a unit that also connects to a wire-based
network and forwards data between the wireless and wire-based networks;
each computer using the wireless network has its own antenna and
special NIC.
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Photo img1_059 |
Optical fiber and connectors; the small black covers protect the
end of the connector when the connector is not in use.
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Photo img1_061 |
Optical fiber cables connected to an ATM switch; each cable contains
a pair of fibers to provide full-duplex communication between the
switch and the attached computer.
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Photo img1_062 |
Optical fiber cables connected to an ATM switch.
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Photo img2_002 |
Optical fiber patch panel; the optical fibers can be reconnected to
different network components by changing the connection points on
the patch panel.
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Photo img2_003 |
Optical fiber patch panel; the optical fibers can be reconnected to
different network components by changing the connection points on
the patch panel.
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Photo img2_004 |
Two racks of network components; the rack at the right of the
picture holds optical fiber patch panels; the rack at the left
holds hubs and a router.
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Photo img3_001 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_002 |
Closeups of a Fore ForeRunner ASX-200 ATM switch with both twisted
pair copper and fiber optic connections, and a Fore ForeRunner LE155
ATM switch with 12 twisted pair 155 megabit connections (see photo
img3_001).
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Photo img3_003 |
ATM switch with both twisted
pair copper and fiber optic connections, and a Fore ForeRunner LE155
ATM switch with 12 twisted pair 155 megabit connections (see photo
img3_001).
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Photo img3_004 |
A closeup of two 3Com 24 port Ethernet switches, a Fore ForeRunner
ASX-200 ATM switch with both twisted pair copper and fiber optic
connections, and a Fore ForeRunner LE155 ATM switch with 12 twisted
pair 155 megabit connections (see photo img3_001).
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Photo img3_011 |
A wall outlet with six RJ-45 Ethernet jacks. The jacks are connected
to a patch panel in a wiring closet where they can be turned on or off
and attached to various Ethernet local area networks.
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Photo img3_012 |
A wall outlet with six RJ-45 Ethernet jacks. The jacks are connected
to a patch panel in a wiring closet where they can be turned on or off
and attached to various Ethernet local area networks.
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Photo img3_013 |
A wall outlet with four unused RJ-45 Ethernet jacks. The jacks are
connected to a patch panel in a wiring closet where they can be turned
on or off and attached to various Ethernet local area networks.
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Photo img3_014 |
A wall outlet with four unused RJ-45 Ethernet jacks. The jacks are
connected to a patch panel in a wiring closet where they can be turned
on or off and attached to various Ethernet local area networks.
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Photo img3_015 |
The back of a laser printer. The blue cable is a twisted pair Ethernet
cable which connects the printer the the local area network.
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Photo img3_016 |
The back of a laser printer. The blue cable is a twisted pair Ethernet
cable which connects the printer the the local area network.
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Photo img3_017 |
The back of a laser printer. The blue cable is a twisted pair Ethernet
cable which connects the printer the the local area network.
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Photo img3_018 |
The back of a personal computer with an Ethernet network interface
card. The card is located in the far right slot and has connectors for
twisted pair, thick and thin Ethernet type cabling.
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Photo img3_019 |
The back of a personal computer with an Ethernet network interface
card. The card is located in the far right slot and has connectors for
twisted pair, thick and thin Ethernet type cabling.
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Photo img3_020 |
The back of a personal computer with an Ethernet network interface
card. The card is located in the far right slot and has connectors for
twisted pair, thick and thin Ethernet type cabling.
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Photo img3_021 |
An Ethernet network interface card. This card has connectors for three
types of Ethernet cabling. From top to bottom they are twisted pair,
thick, and thin.
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Photo img3_023 |
An ATM interface card for use with twisted pair cabling. The silver
box on the right edge of the card is an RJ-45 connector.
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Photo img3_024 |
An ATM interface card for use with twisted pair cabling. The silver
box on the right edge of the card is an RJ-45 connector.
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Photo img3_025 |
A Proxim RangeLAN wireless local area network interface card. Also
shown is a table-top antenna which attaches to the interface card.
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Photo img3_026 |
A Proxim RangeLAN wireless local area network interface card. Also
shown is a table-top antenna which attaches to the interface card.
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Photo img3_027 |
An AirLAN wireless local area network interface card. The white
rectangular object is a wall or ceiling mount antenna which attaches
to the interface.
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Photo img3_028 |
An AirLAN wireless local area network interface card. The white
rectangular object is a wall or ceiling mount antenna which attaches
to the interface.
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Photo img3_029 |
The front of a Proxim wireless bridge. This device bridges a wireless
Proxim local area network with a standard Ethernet network.
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Photo img3_030 |
The front of a Proxim wireless bridge. This device bridges a wireless
Proxim local area network with a standard Ethernet network.
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Photo img3_031 |
The back of a Proxim wireless bridge. On the left is an antenna. On
the right is an RJ-45 Ethernet jack. To the left of that is a thin
Ethernet BNC connector.
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Photo img3_032 |
The back of a Proxim wireless bridge. On the left is an antenna. On
the right is an RJ-45 Ethernet jack. To the left of that is a thin
Ethernet BNC connector.
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Photo img3_033 |
A RangeLAN wireless local area network PCMCIA interface card. The
black object attached to the left of the card is its antenna.
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Photo img3_034 |
A RangeLAN wireless local area network PCMCIA interface card. The
black object attached to the left of the card is its antenna.
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Photo img3_035 |
A RangeLAN wireless PCMCIA network interface
card. Attached is its wireless tranceiver and antenna.
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Photo img3_036 |
A RangeLAN wireless PCMCIA network interface
card. Attached is its wireless tranceiver and antenna.
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Photo img3_037 |
An AirLAN wireless LAN PCMCIA interface card. Attached to the card is
the wireless tranceiver and antenna.
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Photo img3_038 |
An AirLAN wireless LAN PCMCIA interface card. Attached to the card is
the wireless tranceiver and antenna.
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Photo img3_043 |
A wiring closet containing, from top to bottom, three patch panels,
two Ethernet hubs, and an Ethernet switch.
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Photo img3_044 |
A wiring closet containing, from top to bottom, three patch panels,
two Ethernet hubs, and an Ethernet switch.
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Photo img3_045 |
A closeup of the three Ethernet patch cables. The blue cabling is
twisted pair Ethernet cable.
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Photo img3_046 |
On the left three Ethernet patch cables can be seen. Toward the top
and right are conduits which cary various data and telephone cables
throughout the building.
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Photo img3_047 |
A wiring closet containing, from top to bottom, three patch panels,
two Ethernet hubs, and an Ethernet switch.
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Photo img3_048 |
A closeup of the three Ethernet patch cables. The blue cabling is
twisted pair Ethernet cable.
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Photo img3_049 |
Conduits carrying data and voice lines to other buildings on campus.
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Photo img3_050 |
A closeup of the three Ethernet patch cables. The blue cabling is
twisted pair Ethernet cable.
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Photo img3_051 |
A closeup of the three Ethernet patch cables. The blue cabling is twisted pair Ethernet cable.
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Photo img3_052 |
A closeup of the three Ethernet patch cables. The blue cabling is
twisted pair Ethernet cable.
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Photo img3_053 |
A closeup of four copper twisted pair to fiber optic converters. These
devices allow a twisted pair network to extend to distances further
than copper twisted pair cabling allows by converting the electrical
signals to optical signals.
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Photo img3_054 |
A closeup of four copper twisted pair to fiber optic converters. These
devices allow a twisted pair network to extend to distances further
than copper twisted pair cabling allows by converting the electrical
signals to optical signals.
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Photo img3_063 |
The larger device at the bottom is a Cisco 7000 router. On top is a
Fore ForeRunner ASX-200 ATM switch with various twisted pair and
fiber optic connections.
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Photo img3_064 |
The larger device at the bottom is a Cisco 7000 router. On top is a
Fore ForeRunner ASX-200 ATM switch with various twisted pair and
fiber optic connections.
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Photo img3_065 |
A Fore ForeRunner ASX-200 ATM switch with both twisted pair and
fiber optic connections.
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Photo img3_066 |
A Fore ForeRunner ASX-200 ATM switch with both twisted pair and
fiber optic connections.
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Photo img3_067 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_068 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_069 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_070 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_071 |
A wiring closet containing various patch panels, Ethernet switches and hubs, and ATM switches.
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Photo img3_072 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_073 |
A wiring closet containing various patch panels, Ethernet switches and
hubs, and ATM switches.
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Photo img3_074 |
A wiring closet. From top to bottom this closet contains three patch
panels, two 3Com 24 port Ethernet switches, a Fore ForeRunner ASX-200
ATM switch with both twisted pair copper and fiber optic connections,
and A Fore ForeRunner LE155 ATM switch with 12 twisted pair 155
megabit connections.
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Photo img4_017 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_018 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_019 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_020 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_021 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_022 |
A Cisco 7500 router. The top slot is occupied by the routers'
processor board. Third slot from the top on the left is a fiber optic
ATM interface which is concealed by a dust cover. The slot below
contains 6 Ethernet AUI connectors.
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Photo img4_030 |
A Cisco Catalyst 3000 Ethernet switch. This switch has 16 10 megabit
twisted pair Ethernet jacks along the bottom. Near the top one can
also see two 100 megabit fiber optic ports covered by dust caps.
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Photo img4_031 |
A Cisco Catalyst 3000 Ethernet switch. This switch has 16 10 megabit
twisted pair Ethernet jacks along the bottom. Near the top one can
also see two 100 megabit fiber optic ports covered by dust caps.
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Photo img4_032 |
A Cisco Catalyst 3000 Ethernet switch. This switch has 16 10 megabit
twisted pair Ethernet jacks along the bottom. Near the top one can
also see two 100 megabit fiber optic ports covered by dust caps.
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Photo img4_033 |
A Cisco Catalyst 3000 Ethernet switch. This switch has 16 10 megabit
twisted pair Ethernet jacks along the bottom. Near the top one can
also see two 100 megabit fiber optic ports covered by dust caps.
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Photo img4_034 |
A Cisco Catalyst 5505 switch. At the top are two 100 megabit
fiber optic ports with dust covers. In the slot below are two 155
megabit fiber optic ATM interfaces, also concealed by dust covers. The
last occupied slot contains 24 10 megabit twisted pair Ethernet
ports. The remaining two slots are empty and available for expansion.
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Photo img4_035 |
A Cisco Catalyst 5505 switch. At the top are two 100 megabit
fiber optic ports with dust covers. In the slot below are two 155
megabit fiber optic ATM interfaces, also concealed by dust covers. The
last occupied slot contains 24 10 megabit twisted pair Ethernet
ports. The remaining two slots are empty and available for expansion.
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Photo img4_036 |
A Cisco Catalyst 5505 switch. At the top are two 100 megabit
fiber optic ports with dust covers. In the slot below are two 155
megabit fiber optic ATM interfaces, also concealed by dust covers. The
last occupied slot contains 24 10 megabit twisted pair Ethernet
ports. The remaining two slots are empty and available for expansion.
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Photo img4_037 |
A Cisco Catalyst 5505 switch. At the top are two 100 megabit
fiber optic ports with dust covers. In the slot below are two 155
megabit fiber optic ATM interfaces, also concealed by dust covers. The
last occupied slot contains 24 10 megabit twisted pair Ethernet
ports. The remaining two slots are empty and available for expansion.
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Photo img4_044 |
Three Cisco LightStream 1010 ATM Switches. Each has 24 OC-3 ports to
which the orange fiber optic cables connect. Each also has two higher
speed OC-12 ports connecting the three switches in a ring. The OC-12
ports are at the right of each machine.
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Photo img4_045 |
Three Cisco LightStream 1010 ATM Switches. Each has 24 OC-3 ports to
which the orange fiber optic cables connect. Each also has two higher
speed OC-12 ports connecting the three switches in a ring. The OC-12
ports are at the right of each machine.
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Photo img4_046 |
Three Cisco LightStream 1010 ATM Switches. Each has 24 OC-3 ports to
which the orange fiber optic cables connect. Each also has two higher
speed OC-12 ports connecting the three switches in a ring. The OC-12
ports are at the right of each machine.
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Photo img4_047 |
Three Cisco LightStream 1010 ATM Switches. Each has 24 OC-3 ports to
which the orange fiber optic cables connect. Each also has two higher
speed OC-12 ports connecting the three switches in a ring. The OC-12
ports are at the right of each machine.
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Photo img4_053 |
A Cisco Catalyst 5500 Ethernet Switch. The blue cables are twisted
pair 10/100 megabit Ethernet. The orange lines are 10 or 100 megabit
fiber optic connections.
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Photo img4_054 |
A Cisco Catalyst 5500 Ethernet Switch. The blue cables are twisted
pair 10/100 megabit Ethernet. The orange lines are 10 or 100 megabit
fiber optic connections.
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Photo img4_055 |
A Cisco Catalyst 5500 Ethernet Switch. The blue cables are twisted
pair 10/100 megabit Ethernet. The orange lines are 10 or 100 megabit
fiber optic connections.
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Photo img4_056 |
A Cisco Catalyst 5500 Ethernet Switch. The blue cables are twisted
pair 10/100 megabit Ethernet. The orange lines are 10 or 100 megabit
fiber optic connections.
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Photo img4_057 |
The front of a fiber optic patch panel. Fiber optic cabling from outside
the building terminates at the back of this passive patch panel where
it is connected with fiber cables within the building (the orange
cables).
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Photo img4_058 |
The front of a fiber optic patch panel. Fiber optic cabling from outside
the building terminates at the back of this passive patch panel where
it is connected with fiber cables within the building (the orange
cables).
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Photo img4_059 |
Detail of the front of the fiber patch panel. Fiberoptic cabling from
outside the building terminates at the back of this passive patch
panel where it is connected with fiber cables within the building (the
orange cables).
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Photo img4_060 |
Detail of the front of the fiber patch panel. Fiberoptic cabling from
outside the building terminates at the back of this passive patch
panel where it is connected with fiber cables within the building (the
orange cables).
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Photo img4_061 |
Detail of the front of the fiber patch panel.
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Photo img4_062 |
Detail of the front of the fiber patch panel.
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Photo img4_063 |
The back of the fiber patch panel. Fiber optic cables originating
outside the building terminate on connectors in this passive fiber
patch panel. Fiber optic cabling within the building attaches to the
reverse sides of the connectors on the front side of the panel.
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Photo img4_064 |
The back of the fiber patch panel. Fiberoptic cables originating
outside the building terminate on connectors in this passive fiber
patch panel. Fiberoptic cabling within the building attaches to the
reverse sides of the connectors on the front side of the panel.
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Photo img4_065 |
The back of the fiber patch panel. Fiberoptic cables originating
outside the building terminate on connectors in this passive fiber
patch panel. Fiberoptic cabling within the building attaches to the
reverse sides of the connectors on the front side of the panel.
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Photo img4_066 |
The back of the fiber patch panel. Fiberoptic cables originating
outside the building terminate on connectors in this passive fiber
patch panel. Fiberoptic cabling within the building attaches to the
reverse sides of the connectors on the front side of the panel.
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Photo img4_067 |
The grey conduits carry black bundles of fiber optic cables from other
buildings to this one.
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Photo img4_068 |
The grey conduits carry black bundles of fiber optic cables from other
buildings to this one.
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Photo img4_069 |
The grey conduits carry black bundles of fiber optic cables from other
buildings to this one.
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Photo img4_070 |
Two types of fiber optic cable connectors. On the left are examples of
the ST type primarily used for 10 megabit connections. The newer
SC type connector seen on the right is used for 100 megabit or
higher bandwidth fiber optic connections.
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Photo img4_071 |
Two types of fiber optic cable connectors. On the left are examples of
the ST type primarily used for 10 megabit connections. The newer
SC type connector seen on the right is used for 100 megabit or
higher bandwidth fiber optic connections.
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Photo img4_072 |
Two types of fiber optic cable connectors. On the left are examples of
the ST type primarily used for 10 megabit connections. The newer
SC type connector seen on the right is used for 100 megabit or
higher bandwidth fiber optic connections.
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Photo img4_073 |
Closeup of the ST type fiber optic cable connectors (see photo
img4_072).
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Photo img4_074 |
Closeup of the SC type fiber optic cable connectors (see photo
img4_072).
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Photo img4_078 |
The back side of an Ethernet repeater. On the left is an RJ-45 twisted
pair connector. In the middle is a thin Ethernet coaxial connector.
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Photo img4_079 |
The back side of an Ethernet repeater. On the left is an RJ-45 twisted
pair connector. In the middle is a thin Ethernet coaxial connector.
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Photo img4_080 |
The front of an Ethernet repeater shows various status indicators.
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Photo img4_081 |
A twelve port twisted pair Ethernet hub. About to be plugged in is an
Ethernet cable with an RJ-45 connector.
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Photo img4_082 |
A twelve port twisted pair Ethernet hub. About to be plugged in is an
Ethernet cable with an RJ-45 connector.
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Photo img4_083 |
An example of thin Ethernet coaxial cabling. On the left is an end
connector. On the right is a T splitter which would attach a host to
the Ethernet bus.
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Photo img4_084 |
An example of thin Ethernet coaxial cabling. On the left is an end
connector. On the right is a T splitter which would attach a host to
the Ethernet bus.
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Photo img4_085 |
The end of a twisted pair Ethernet cable with an RJ-45 connector.
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Photo img4_086 |
The end of a twisted pair Ethernet cable with an RJ-45 connector.
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Photo img4_087 |
The back of a workstation with two types of network interfaces. On the
bottom is a twisted pair Ethernet tranceiver. The yellow cable
attached to the tranceiver's RJ-45 port connects the workstation to
the local Ethernet. The tranceiver is attached to the workstation's
AUI port. The orange fiber optic cables with SC-type connectors attach
to the hosts ATM interface. The orange cable on the left carries data
transmitted by this host to an ATM switch. The one on the right
carries data from the switch to this host.
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Photo img4_088 |
The back of a workstation with two types of network interfaces. On the
bottom is a twisted pair Ethernet tranceiver. The yellow cable
attached to the tranceiver's RJ-45 port connects the workstation to
the local Ethernet. The tranceiver is attached to the workstation's
AUI port. The orange fiber optic cables with SC-type connectors attach
to the hosts ATM interface. The orange cable on the left carries data
transmitted by this host to an ATM switch. The one on the right
carries data from the switch to this host.
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Photo img4_089 |
The back of a workstation with two types of network interfaces. On the
bottom is a twisted pair Ethernet tranceiver. The yellow cable
attached to the tranceiver's RJ-45 port connects the workstation to
the local Ethernet. The tranceiver is attached to the workstation's
AUI port. The orange fiber optic cables with SC-type connectors attach
to the hosts ATM interface. The orange cable on the left carries data
transmitted by this host to an ATM switch. The one on the right
carries data from the switch to this host.
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Photo img4_091 |
A Fore ASX-100 ATM switch (historic). This switch has four ports to
which hosts are connected. Each port consists of two connectors, one
for transmitting data and one for receiving data. One can see three
free slots in which additional ports can be added. A twisted pair
tranceiver on the lower left also attaches the switch the an Ethernet
network.
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Photo img4_092 |
A Fore ASX-100 ATM switch (historic). This switch has four ports to
which hosts are connected. Each port consists of two connectors, one
for transmitting data and one for receiving data. One can see three
free slots in which additional ports can be added. A twisted pair
tranceiver on the lower left also attaches the switch the an Ethernet
network.
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Photo img4_093 |
Closeup of the ports on a Fore ASX-100 ATM switch (see photo img4_091).
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Photo img4_094 |
Closeup of the ports on a Fore ASX-100 ATM switch (see photo img4_091).
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Photo img4_095 |
A 10/100 megabit twisted pair Ethernet interface in a personal
computer. The link indicator is illuminated indicating that
the interface is connected to an active Ethernet network. The 10
Mbit/s indicator is lit, while the 100 Mbit/s indicator is
not. This shows that the network is operating in the slower 10 megabit
mode.
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Photo img4_096 |
A 10/100 megabit twisted pair Ethernet interface in a personal
computer. The link indicator is illuminated indicating that
the interface is connected to an active Ethernet network. The 10
Mbit/s indicator is lit, while the 100 Mbit/s indicator is
not. This shows that the network is operating in the slower 10 megabit
mode.
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Photo img4_097 |
A 10/100 megabit twisted pair Ethernet interface in a personal
computer. The link indicator is illuminated indicating that
the interface is connected to an active Ethernet network. The 10
Mbit/s indicator is lit, while the 100 Mbit/s indicator is
not. This shows that the network is operating in the slower 10 megabit
mode.
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Photo img4_098 |
An AirLan wireless local area network interface antenna mounted on a
ceiling.
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Photo img4_099 |
An AirLan wireless local area network interface antenna mounted on a
ceiling.
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Photo img4_100 |
An AirLan wireless local area network interface antenna mounted on a
ceiling.
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Photo img4_101 |
A Proxim RangeLAN PCMCIA wireless local area network interface card
being inserted into a laptop computer. The small black piece attached
to the card is its antenna.
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Photo img4_102 |
A Proxim RangeLAN PCMCIA wireless local area network interface card
being inserted into a laptop computer. The small black piece attached
to the card is its antenna.
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Photo img4_103 |
A PCMCIA modem being inserted into a laptop computer. Attached to the
card is an adaptor which connects the card to a standard RJ-11
telephone line.
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Photo img4_104 |
A PCMCIA modem being inserted into a laptop computer. Attached to the
card is an adaptor which connects the card to a standard RJ-11
telephone line.
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Photo img4_105 |
A PCMCIA Ethernet interface being inserted into a laptop
computer. Attached to the card is a twisted pair Ethernet cable. One
end of the cable has a standard RJ-45 plug, while the end to which the
card attaches has a proprietary connector.
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Photo img4_106 |
A PCMCIA Ethernet interface being inserted into a laptop
computer. Attached to the card is a twisted pair Ethernet cable. One
end of the cable has a standard RJ-45 plug, while the end to which the
card attaches has a proprietary connector.
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Photo img4_107 |
A standard desk fax modem. In the middle are seen two RJ-11 telephone
jacks. One connects the modem to a telephone line while the other is
empty. On the far right is a serial line connecting the modem to a
computer.
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Photo img4_108 |
A standard desk fax modem. In the middle are seen two RJ-11 telephone
jacks. One connects the modem to a telephone line while the other is
empty. On the far right is a serial line connecting the modem to a
computer.
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Photo img4_109 |
The front of a standard desk fax modem showing its various indicators.
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Photo img4_110 |
The front of a Motorola cable modem showing its various indicators.
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Photo img4_111 |
The back of a Motorla cable modem. On the left is a standard coaxial
television cable connector. The modem sends and receives data over the
existing cable system infrastructure through this connection. On the
right is an RJ-45 Ethernet jack which connects the modem to a
computer.
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Photo img5_001 |
Motorola CyberSurfer Wave cable modem
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Photo img5_002 |
Motorola CyberSurfer Wave cable modem
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Photo img5_003 |
Antennas for satellite data transmission at PanAmSat's Napa, CA,
ground facility
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Photo img5_004 |
Antenna and equipment control room for PanAmSat's Napa, CA, ground
facility
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