(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2009/0019296 A1
`
`
` Huang (43) Pub. Date: Jan. 15, 2009
`
`US 20090019296A1
`
`(54) NETWORK SYSTEM PORT THEREOF FOR
`TRANSMITTING VARIOUS SIGNALS AND
`POWER
`
`(52) US. Cl. ........................................................ 713/310
`
`(75)
`
`Inventor:
`
`.
`Chun-Chi Huang, Hsmchu (TW)
`
`(57)
`
`ABSTRACT
`
`Correspondence Address:
`BACON & THOMAS, PLLC
`625 SLATERS LANE, FOURTH FLOOR
`ALEXANDRIA, VA 22314-1176 (US)
`
`(73) Assignee:
`
`Alpha Networks 1116-, Hsinchu
`(TW)
`
`(21) APP1~ N0-3
`.
`Flled:
`
`(22)
`
`11/822900
`
`Jul. 119 2007
`Publication Classification
`
`(51)
`
`Int. Cl,
`G06F 1/26
`
`(2006.01)
`
`The present invention is to provide a network system for
`transmitting various signals and power, which comprises at
`least a power sourcing equipment and at least a powered
`device over a network. Each ofthe power sourcing equipment
`and the powered device has at least a port, wherein a first
`isolated conductor is disposed at one side of the port while a
`second isolated conductor is disposed at the other side of the
`port and creates a power circuit for transmitting power in
`combination with the first isolated conductor. Four differen-
`
`tial signal pairs of the port, each with two conductors, are
`disposed between the first isolated conductor and the second
`isolated conductor, wherein each of the power sourcing
`equipment and the powered device transmits Ethernet signals
`through two of the differential signal pairs of its port and
`transmits other network signals through the other two differ-
`ential signal pairs.
`
`69'(79’)
`
`
`
`160’ (70’ )
`
`69(79)
`
`
`
`'-I-I-I-I-I_I‘l-l-l-.
`
`60(70)
`
`NETWORK- 1 EXHIBIT N1 -2007
`
`Dell Inc. v. Network—1
`
`IPR2013-003 85
`
`

`

`Patent Application Publication
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`Jan. 15, 2009 Sheet 1 of 8
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`US 2009/0019296 A1
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`(PriorArt)
`
`FIG.1
`
`

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`Patent Application Publication
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`Jan. 15, 2009 Sheet 2 0f 8
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`US 2009/0019296 A1
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`
`
`FIG.2 (Prior Art)
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`

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`Patent Application Publication
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`Jan. 15, 2009 Sheet 3 0f 8
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`US 2009/0019296 A1
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`(PriorArt)
`
`FIG.3
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`

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`Patent Application Publication
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`Jan. 15, 2009 Sheet 4 0f 8
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`US 2009/0019296 A1
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`FIG4(PriorArt)
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`

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`Patent Application Publication
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`Jan. 15, 2009 Sheet 5 of 8
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`US 2009/0019296 A1
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`k—M
`fl—‘\\V‘\‘\VV\
`
`FIG.5
`
`

`

`Patent Application Publication
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`Jan. 15, 2009 Sheet 6 0f 8
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`US 2009/0019296 A1
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`FIG.6
`
`68(78)
`
`

`

`Patent Application Publication
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`Jan. 15, 2009 Sheet 7 of 8
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`US 2009/0019296 A1
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`60(70)
`
`69(79)
`
`A E
`
`:
`[\-
`\J
`
`6c
`
`o
`
`FIG.7
`
`69’(79’)
`
`

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`Patent Application Publication
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`Jan. 15, 2009 Sheet 8 of 8
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`US 2009/0019296 A1
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`FIG.8
`
`

`

`US 2009/0019296 A1
`
`Jan. 15, 2009
`
`NETWORK SYSTEM PORT THEREOF FOR
`TRANSMITTING VARIOUS SIGNALS AND
`POWER
`
`FIELD OF THE INVENTION
`
`[0001] The present invention relates to a network system,
`more particularly to a network system having a port for trans-
`mitting Ethernet signals, other network signals and power.
`Thus, in the case that a 8P8C port of a conventional powered
`device not complied with PoE is plugged into the port, the
`port of the network system will ensure the conventional pow-
`ered device to continuously transmit Ethernet signals and
`prevent it from being damaged.
`
`BACKGROUND OF THE INVENTION
`
`[0002] A conventional powered device connected with an
`Ethernet, such as an IP phone, web camera, wireless bridge,
`cash register, or secure accessing and monitoring system etc.,
`needs battery or power cord and power socket disposed on the
`terminal network device for power supply. A better way to do
`is to supply the power while transmitting date to the powered
`device connected with the Ethernet. And the Power over
`
`Ethernet (PoE) technology provided by the IEEE802.3af
`standard is capable of transmitting power and date to the
`powered device connected with the Ethernet at the same time.
`[0003]
`Please refer to FIG. 1, PoE is a kind of technology
`applied to Ethernet that allows the power and data of a power
`sourcing equipment 1 (such as Ethernet switch, router, hub,
`other network switch, and mid-span PSE etc., hereinafter
`abbreviated as PSE) to be transmitted to a powered device 2
`complied with PoE through twisted pair.
`[0004]
`Please refer to FIG. 2, ifa mid-span PSE, a kind of
`the power sourcing equipment 1 stated above, is disposed
`between a conventional remote network device 10 not com-
`
`plied with PoE and a powered device 2 complied with PoE,
`the network signals of the conventional remote network
`device 10 may be received through the mid-span PSE, and
`meanwhile, the power and data may be transmitted from the
`mid-span PSE to the powered device 2, thus the objectives of
`
`P03 may be achieved. Therefore, while employing PoE, the
`powered device 2 not suitable for extra power cord may be
`powered and data may be transmitted normally without alter-
`ing the structure of the Ethernet.
`[0005] However, the conventional powered device may be
`damaged if it is provided with high voltage (such as 48V)
`from the power sourcing equipment 1. Hence, for the safety of
`the conventional powered device, the power sourcing equip-
`ment 1 is equipped with a “discovery procedure” to find out
`that whether the powered device connected with the power
`sourcing equipment 1 is complied with PoE, thereby prevents
`the conventional powered device from being damaged for
`misconnection with the power sourcing equipment 1.
`[0006] However, in the case that the power sourcing equip-
`ment 1 is provided with 48 “PoE port”, the circuit ofthe power
`sourcing equipment 1 must comprise twelve sets of Ethernet
`power supply control unit 3. Please refer to FIG. 3, each set of
`Ethernet power supply control unit 3 comprises one Ethernet
`power supply controller 30 and four individual Metal Oxide
`Semiconductor Field Effect Transistor (MOSFET) 32, and
`controls four ports. For the power sourcing equipment 1 to be
`equipped with a “discovery procedure”, the circuit design of
`the power sourcing equipment 1 will be quite complicated
`which leads to higher manufacturing cost. Besides, please
`
`refer to FIG. 4, PoE now primarily uses RJ-45 connector 4 as
`the “PoE port” which is provided with the first to the eighth
`conductors 41 to 48 from the left to the right wherein the first
`to the third conductors 41 to 43 and the sixth conductor 46 are
`
`utilized to transmit network signals while the fourth, fifth,
`seventh, and eighth conductors 44, 45, 47 and 48 are utilized
`to transmit other signals or power. All of the conductors 41 to
`48 of the RJ-45 connector 4 may not be able to support other
`application even when there’s a need for transmission ofother
`signals or in the case that PoE is not employed. Thus, devel-
`oping a new technology for the problems of complicated
`circuit design, high manufacturing cost and lack of extra
`conductor has become an issue with great importance.
`
`SUMMARY OF THE INVENTION
`
`For the purpose of solving the problems stated
`[0007]
`above, after hard work ofresearch and experiments for a long
`time, the inventor has developed a network system and port
`thereof for transmitting various signals and power so as to
`make certain contribution to the public.
`[0008] One of the objectives of the present invention is to
`provide a network system for transmitting various signals and
`power comprising at least a power sourcing equipment and at
`least a powered device over a network, wherein each of the
`power sourcing equipment and the powered device is pro-
`vided with at least a port. A first isolated conductor is dis-
`posed atone side ofthe port while a secondisolated conductor
`is disposed at the other side of the port and creates a power
`circuit for transmitting power in combination with the first
`isolated conductor. Four differential signal pairs of the port,
`each with two conductors, are disposed between the first
`isolated conductor and the second isolated conductor,
`wherein each of the power sourcing equipment and the pow-
`ered device transmits Ethernet signals through two of the
`differential signal pairs of its port and transmits other network
`signals through the other two differential signal pairs. The
`ports of the power sourcing equipment and the powered
`device are connected with each other through a transmission
`line, and a conducting wire of the transmission line is dis-
`posed between the first isolated conductors, the second iso-
`lated conductors, and each set of the corresponding differen-
`tial signal pairs of the power sourcing equipment and the
`powered device respectively. Thus, in the case that a 8P8C
`port of a conventional powered device not complied with PoE
`is plugged into the port of the power sourcing equipment, the
`conductors of the 8P8C port are connected to the differential
`signal pairs instead ofthe first and second isolated conductors
`which ensures continuous transmission of Ethernet signals of
`the conventional powered device and prevents it from being
`damaged.
`[0009] Another objective of the present invention is to
`allow the power sourcing equipment and the powered device
`to establish connection with each other by using said ports
`which makes it possible to transmit Ethernet signals and
`power and reduce the manufacturing cost without building
`complicated circuit complied with PoE. Meanwhile,
`the
`problem of PoE of lacking extra conductor may be solved by
`transmitting other network signals through using the other
`two differential signal pairs.
`[0010] Another objective of the present invention is to pro-
`vide a port for transmitting various signals and power wherein
`said port comprises a main body. A first isolated conductor is
`disposed at one side of the surface of the port while a second
`isolated conductor is disposed at the other side of the surface
`
`

`

`US 2009/0019296 A1
`
`Jan. 15, 2009
`
`of the port and creates a power circuit for transmitting power
`in combination with the first isolated conductor. Four differ-
`
`ential signal pairs of the port, each with two conductors, are
`disposed between the first isolated conductor and the second
`isolated conductor wherein two ofthe differential signal pairs
`are utilized to transmit Ethernet signals while the other two
`differential signal pairs are utilized to transmit other network
`signals. Thus, in the case that a 8P8C port of a conventional
`powered device not complied with PoE is plugged into said
`port, the conductors of the 8P8C port are connected to the
`differential signal pairs instead ofthe first and second isolated
`conductors which keeps the conventional powered device
`from receiving the power transmitted by the first and second
`isolated conductors and being damaged.
`[0011] Another objective of the present invention is that
`while a power sourcing equipment or a powered device is
`provided with said port, the power sourcing equipment or the
`powered device is capable of transmitting Ethernet signals
`and power without complicated circuit complied with PoE,
`thus the manufacturing cost may be reduced. Meanwhile, the
`problem of PoE of lacking extra conductor may be solved by
`transmitting other network signals through using the other
`two differential signal pairs.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`[0012] The foregoing aspects, as well as many of the atten-
`dant advantages and features of the present invention will
`become more apparent by reference to the following detailed
`description, when taken in conjunction with the accompany-
`ing drawings, wherein:
`[0013]
`FIG. 1 shows the structure of the conventional
`power sourcing equipment and powered device;
`[0014]
`FIG. 2 shows the structure of the conventional
`remote network device, power sourcing equipment and pow-
`ered device;
`[0015]
`FIG. 3 shows the conventional Ethernet power sup-
`ply control unit;
`[0016]
`FIG. 4 shows the allocation of the pins of the con-
`ventional RJ-45 connector;
`[0017]
`FIG. 5 shows the structure of the power sourcing
`equipment and powered device of the present invention;
`[0018]
`FIG. 6 shows the first and second ports each as a
`plug of the present invention;
`[0019]
`FIG. 7 shows the first and secondports each as ajack
`of the present invention; and
`[0020]
`FIG. 8 shows the pins allocation of the port of the
`present invention;
`
`DETAILED DESCRIPTION OF THE PREFERRED
`EMBODIMENT
`
`[0021] The present invention relates to a network system
`and port thereof for transmitting various signals and power.
`Please refer to FIG. 5, said network system for transmitting
`various signals and power comprises at least a power sourcing
`equipment (abbreviated as PSE) 6 and at least a powered
`device (abbreviated as PD) 7 wherein the power sourcing
`equipment 6 and the powered device 7 are constructed over a
`network through at least a transmission line 5. Each of the
`power sourcing equipment 6 and the powered device 7 is
`provided with at least a port (such as a lOPlOC (ten positions,
`ten conductors) port as a plug or a jack as shown in FIGS. 6
`and 7) 60, 70 respectively. Each of the port 60, 70 comprises
`a main body (60', 70'), wherein a first isolated conductor (65,
`
`75) is disposed near one side of the surface of the main body
`(60', 70') while a second isolated conductor (66, 76) is dis-
`posed near the other side of the surface of the main body (60',
`70') and creates a power circuit for power supply in combi-
`nation with the first isolated conductor (65, 75). A first dif-
`ferential signal pair (61, 71), a second differential signal pair
`(62, 72), a third differential signal pair (63, 73), and a fourth
`differential signal pair (64, 74), each composed of two con-
`ductors and compatible with the 8P8C (eight positions, eight
`conductors) port (such as a RJ-45 port) are disposed on the
`surface of the main body (60', 70') between the first isolated
`conductor (65, 75) and the second isolated conductor (66, 76).
`And a conducting wire 50 of the transmission line 5 is dis-
`posed between the first isolated conductors (65, 75), the sec-
`ond isolated conductors (66, 76), and each set of the corre-
`sponding differential signal pairs (61~64, 71~74) of the
`power sourcing equipment 5 and the powered device 6
`respectively.
`[0022] Moreover, the first differential signal pair 61 of the
`power sourcing equipment 6 is utilized to transmit network
`signals to the first differential signal pair 71 of the powered
`device 7 while the second differential signal pair 62 of the
`power sourcing equipment 6 is utilized to receive network
`signals transmitted from the second differential signal pair 72
`of the powered device 7. And the third and fourth differential
`signal pairs 63, 64, 73, and 74 of the power sourcing equip-
`ment 6 and the powered device 7 are utilized to transmit other
`network signals (such as gigabit Ethernet network signal,
`detection signal, and control signal etc.).
`[0023]
`Please refer to FIG. 5 again, in said embodiment, the
`third differential signal pair (63, 73) is composed of two
`central conductors of the main body (60', 70'), the second
`differential signal pair (62, 72) is composed of two conduc-
`tors of the main body (60', 70') at both sides of the third
`differential signal pair (63, 73), the fourth differential signal
`pair (64, 74) is composed of two conductors of the main body
`(60', 70') between the first isolated conductor (65, 75) and the
`second differential signal pair (62, 72), and the first differen-
`tial signal pair (61, 71) is composed of two conductors of the
`main body (60', 70') between the second isolated conductor
`(66, 76) and the second differential signal pair (62, 72). In
`other words, the locations and the way of pairing of the
`conductors of the first port 60 and the second port 70 are the
`same as those of 8P8C port (such as a RJ-45 port) of Ethernet.
`[0024]
`Please refer to FIG. 6, in the case that the first and the
`second ports (60, 70) are formed as plugs, wherein a raised
`part (67 77) is disposed at the center of one side of the main
`body (60', 70') opposite to the conductors, and a restraint part
`(68 78) with elasticity is extendedly disposed at the end ofthe
`raised part (67 77), so as to enable the first and the second
`ports (60, 70) to be the plugs compatible to jacks having 8P8C
`ports. Besides, please refer to FIG. 7, in the case that the first
`and the second ports (60, 70) are formed as jacks, wherein a
`directing rail (69, 79) matching the raised part (67 77) is
`disposed at the center of one side of the main body (60', 70')
`opposite to the conductors, and a restraint slot (69' 79')
`matching the restraint part (68 78) is disposed within the
`directing rail (69, 79), so as to enable the first and the second
`ports (60, 70) to be the jacks compatible to the plugs with
`8P8C ports. Hence, the first and the second ports (60, 70) are
`provided with following advantages:
`[0025]
`l. The first port 60 and the second port 70 are
`capable of directing and coupling with 8P8C ports properly
`and preventing 8P8C ports from shaking or disconnected
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`US 2009/0019296 A1
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`Jan. 15, 2009
`
`regardless of the 8P8C port coupled with the first port 60 or
`the second port 70 being plug or jack;
`[0026]
`2. As stated above, the first port 60 is compatible
`with the 8P8C port ofthe type as a plug orjack which enables
`the power sourcing equipment 6 to transmit its Ethernet sig-
`nals to a conventional powered device not complied with PoE
`through the first port 60. In other words, in the case that the
`8P8C port of the conventional powered device is miscon-
`nected to the first port 60 of the power sourcing equipment 6,
`the conventional powered device can still operate normally;
`[0027]
`3. When the 8P8C port is connected to the first port
`60, the first isolated conductor 65 and the second isolated
`conductor 66 are blocked by part of the surface of the 8P8C
`port where no conductor is disposed which prevents the first
`isolated conductor 65 and the second isolated conductor 66
`
`from being misconnected, thus keeps the conventional pow-
`ered device from being damaged;
`[0028]
`4. The first port 60 and the second port 70 are pro-
`vided with matching structures which enables the power
`sourcing equipment 6 and the powered device 7 to transmit
`power by directly using the first isolated conductor (65, 75)
`and the second isolated conductor (66, 76) without detection
`circuit complied with PoE, thus the problem of the circuit
`designed for the “discovery procedure” of the conventional
`power sourcing equipment being too complicated may be
`solved and the manufacturing cost may be reduced; and
`[0029]
`5. The third and the fourth differential signal pairs
`(63, 73) and (64, 74) are not occupied when transmitting
`detection signals and power, so the first port 60 and the second
`port 70 may transmit other network signals (such as detection
`signals and control signals) by using the third and the fourth
`differential signal pairs (63, 73) and (64, 74).
`[0030]
`Please refer to FIG. 8, the present invention of a port
`for transmitting various signals and power is provided with a
`main body 9. A first isolated conductor 90 is disposed at one
`side of the surface of the main body 9 while a second isolated
`conductor 91 is disposed at the other side ofthe surface of the
`main body 9 and creates a power circuit in combination with
`the first isolated conductor 90. Four differential signal pairs
`92, each composed of two conductors and compatible with
`the 8P8C port, are disposed between the first isolated conduc-
`tor 90 and the second isolated conductor 91, wherein two of
`the differential signal pairs 92 are utilized to transmit network
`signals and the other two differential signal pairs 92 are
`utilized to transmit other network signals (such as gigabit
`Ethernet network signal, detection signal, and control signal
`etc.). Thus, in the case that a power sourcing equipment 6 or
`a powered device 7 over a network is provided with a port 9,
`the power sourcing equipment 6 and the powered device 7
`may be connected with each other by using the port 9 and
`capable of transmitting network signals, power, and other
`network signals. Besides, while a 8P8C port ofa conventional
`powered device not complied with PoE is connected to the
`power sourcing equipment 6, the 8P8C port will be connected
`with the differential signal pairs 92 only instead of the first
`isolated conductor 90 and the second isolated conductor 91
`
`which keeps the conventional powered device from receiving
`any power and ensures continuous transmission of network
`signals.
`[0031] As stated above, that the Ethernet signals and power
`may be transmitted between the power sourcing equipment 6
`and the powered device 7 simultaneously means that the
`power sourcing equipment 6 and the powered device 7 are
`complied with PoE. Besides, in the case that the power sourc-
`
`ing equipment 6 is connected with a conventional powered
`device, the conventional powered device may keep on trans-
`mitting network signals without being damaged, thus the
`problem stated above that the conventional powered device
`will be damaged when misconnected to power sourcing
`equipment may be perfectly solved.
`[0032] While the invention herein disclosed has been
`described by means of specific embodiments, numerous
`modifications and variations could be made thereto by those
`skilled in the art without departing from the scope and spirit of
`the invention set forth in the claims.
`
`What is claimed is:
`
`1. A network system for transmitting various signals and
`power, wherein said system is constructed over a network,
`comprising:
`
`at least a power sourcing equipment;
`at least a powered device,
`each of said power sourcing equipment and said powered
`device is provided with at least a port having a main
`body, a first isolated conductor is disposed near one side
`of the surface of said main body while a second isolated
`conductor is disposed near the other side of the surface
`of said main body and creates a power circuit for power
`supply in combination with said first isolated conductor,
`and a first differential signal pair, a second differential
`signal pair, a third differential signal pair, and a fourth
`differential signal pair, each composed of two conduc-
`tors disposed on the surface of said main body, are dis-
`posed on the surface of said main body between said first
`isolated conductor and said second isolated conductor,
`and
`
`said ports of said power sourcing equipment and said pow-
`ered device are connected with each other through a
`transmission line, and a conducting wire of said trans-
`mission line is disposed between said first isolated con-
`ductors, said second isolated conductors, and each set of
`the corresponding differential signal pairs of said power
`sourcing equipment and said powered device respec-
`tively.
`2. A network system for transmitting various signals and
`power of claim 1, wherein the first to the fourth differential
`signal pairs are compatible with four differential signal pairs
`of a 8P8C port.
`3. A network system for transmitting various signals and
`power of claim 2, wherein said first differential signal pair of
`said power sourcing equipment is utilized to transmit network
`signals to said first differential signal pair of said powered
`device.
`
`4. A network system for transmitting various signals and
`power of claim 3, wherein said second differential signal pair
`of said power sourcing equipment is utilized to receive net-
`work signals transmitted from said second differential signal
`pair of said powered device.
`5. A network system for transmitting various signals and
`power of claim 4, wherein said third and fourth differential
`signal pairs are utilized to transmit other network signals of
`said power sourcing equipment and said powered device.
`6. A network system for transmitting various signals and
`power of claim 5, wherein said other network signals are
`gigabit Ethernet network signals.
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`US 2009/0019296 A1
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`Jan. 15, 2009
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`7. A network system for transmitting various signals and
`power of claim 5, wherein said third differential signal pair is
`composed of two conductors at the central of the surface of
`said main body, said second differential signal pair is com-
`posed of two conductors of said main body at both sides of
`said third differential signal pair, said fourth differential sig—
`nal pair is composed of two conductors of said main body
`between said first isolated conductor and said second differ-
`
`ential signal pair, and said first differential signal pair is
`composed of two conductors of said main body between said
`second isolated conductor and said second differential signal
`pair.
`8. A port for transmitting various signals and power, com-
`prising:
`a main body;
`a first isolated conductor disposed near one side of the
`surface of said main body;
`
`a second isolated conductor disposed near the other side of
`the surface of said main body, wherein said second iso-
`lated conductor and said first isolated conductor create a
`power circuit; and
`four differential signal pairs disposed at said main body
`between said first isolated conductor and said second
`
`isolated conductor, wherein each of said differential sig-
`nal pairs is composed of two conductors.
`9. A port for transmitting various signals and power of
`claim 8, wherein two of said differential signal pairs are
`utilized to transmit network signals and the other two of said
`differential signal pairs are utilized to transmit other network
`signals.
`10. A port for transmitting various signals and power of
`claim 9, wherein said other network signals are gigabit Eth-
`emet network signals.
`
`*
`
`>X<
`
`*
`
`>X<
`
`*
`
`