JP2022147900A - lighting control system - Google Patents

Abstract

To provide a lighting control system that can be powered by POE, is simply connected to a lighting controller, and can cope with different communication methods.SOLUTION: A lighting control system of the present disclosure includes: a lighting fixture that illuminates a lighting space; at least one lighting control device that controls the lighting fixture; and a terminal instrument with a switch function, provided between the lighting fixture and the lighting control device. Since the terminal instrument with the switch function is connected to the one or more lighting control devices via POE, connection with a lighting controller is simple and different communication methods can be coped with.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to lighting control systems.

Conventionally, 100 V AC was used as the power supply for lighting fixtures, and installation of lighting fixtures required an electrician. In recent years, the widespread use of LEDs has made it possible to supply power at a low voltage. Patent Literature 1 discloses an LED lighting device powered by POE (an abbreviation for Power over Ethernet).

Japanese Patent Application Publication No. 2019-511808

In the LED lighting device disclosed in Patent Document 1, power can be supplied by POE, but connection with a lighting controller and compatibility with different communication methods have not been studied.

An object of the present disclosure is to provide a lighting control system that can be powered by POE, can be easily connected to a lighting controller, and is compatible with different communication methods.

A lighting control system according to one aspect of the present disclosure includes a lighting fixture that illuminates a lighting space;
a lighting control device that controls the lighting fixture;
a terminal device with a switch function provided between the lighting fixture and the lighting control device;
A lighting control system comprising:
The terminal device with a switch function is connected to one or more of the lighting fixtures via DC power supply wiring.

According to the embodiments of the present disclosure, it is possible to provide a lighting control system that can be powered by POE, can be easily connected to a lighting controller, and is compatible with different communication methods.

1 is a block diagram of a lighting control system according to Embodiment 1; FIG. 1 is a block diagram of a terminal device with a power supply function according to Embodiment 1; FIG. 1 is a block diagram of a terminal device and a lighting fixture according to Embodiment 1; FIG. 2 is a functional block diagram of a terminal device according to Embodiment 1; FIG. 2 is a wiring diagram of a LAN cable (POE) according to Embodiment 1. FIG. FIG. 8 is a block diagram of a communication circuit according to Embodiment 2; It is a wiring diagram of an example when a tester is connected.

A lighting control system according to an embodiment of the present disclosure will be described below in detail with reference to the drawings. However, the embodiments shown below are examples of lighting control systems for embodying the technical idea of the present disclosure, and do not limit the present disclosure to these, and are included in the scope of claims. It is equally applicable to the embodiments.

[Embodiment 1]
A lighting control system according to Embodiment 1 of the present disclosure will be described with reference to FIGS. FIG. 1 is a block diagram of a lighting control system. The lighting control system includes a personal computer 10 (hereinafter referred to as "PC 10"), a lighting controller 11, a relay terminal 12, a wall switch 13, a HUB 14, a terminal A 15, a terminal B 16, a terminal C 17, a lighting fixture 20, an image sensor 21, an illuminance sensor 22, and the like. The lighting control system of this embodiment is not limited to the configuration of FIG. The number of connected lighting fixtures 20, image sensors 21, and illuminance sensors 22 is arbitrary, and the image sensors 21 or illuminance sensors 22 can be omitted. A sensor, an illuminance/human sensor, etc. can also be provided.

The lighting controller 11 is connected to the PC 10 via the LAN 25 and can be set and controlled by the PC 10 . A relay terminal 12 , a wall switch 13 , terminals 15 to 17 and the like are connected to the lighting controller 11 via a dedicated line 26 . The number of relay terminals 12, wall switches 13, and terminals 15-17 can be set appropriately. A leased line is a line constructed according to the specifications of each manufacturer of lighting fixtures, and is often incompatible between manufacturers. The dedicated line includes FBUS of Mitsubishi Electric Lighting Co., Ltd., and the like. The terminals 15 to 17 are connected to the PC 10 via the LAN 25 via the HUB 14 . Although the type of LAN is not particularly limited here, for example, Ethernet or the like can be used.
Note that the lighting controller may also be called a lighting control device. Also, the lighting controller and the PC may be collectively called a lighting control device. Also, the HUB may be called a terminal with a switch function, and the HUB and the terminal may be collectively called a terminal with a switch function.

In the present embodiment, the dedicated communication line 26 is used as an example of a communication line using a specific protocol, and the LAN made of Ethernet is used as an example of communication using a protocol different from that of the lighting controller 11. However, communication using a specific protocol, , and communication using different protocols is not limited to this, and any combination may be used.

Also, although an example in which the HUB 14 is connected to the PC 10 via a LAN has been described, this embodiment is not limited to this, and the HUB 14 may be connected to another control device.

A lighting fixture 20, an image sensor 21, and the like are connected to each of the terminal A15, the terminal B16, and the terminal C17 via a LAN cable 27. FIG. The type and number of lighting fixtures 20 connected to each of terminal A15, terminal B16 and terminal C17 are arbitrary. Also, the image sensor 21 or the illuminance sensor 22 is an example, and these can be omitted. Further, instead of or in addition to these, other types such as a human sensor, an illuminance/human sensor, etc. sensors can also be provided.

FIG. 1 shows three terminals, terminal A15, terminal B16, and terminal C17, but the terminal A15 will be described below as a representative. The configuration of other terminals is the same as that of the terminal A15. In addition, although the terminal A15 is described as being connected to the lighting equipment 20 and the image sensor 21, this is merely an example, and as described above, sensors other than the image sensor 21, for example, may be connected. good too.

The luminaire 20 and the image sensor 21 are connected to the terminal device A15 via a LAN cable 27. FIG. As a LAN cable, for example, POE (Power over Ethernet, IEEE 802.3af/PoE+/IEEE 802.3at, also known as PoE++ IEEE 802.3bt) can be used. POE is a specification for supplying power to a connected device using an Ethernet communication cable. Each lighting device 20 and image sensor 21 are powered by a LAN cable 27 from the terminal device A15.

The voltage supplied by the LAN cable 27 is DC 48V. Although the wiring work of AC 100V needs to be performed by an electrician, anyone other than an electrician can perform the wiring work by connecting and disconnecting the LAN cable 27 . The use of LEDs has reduced the power consumption of lighting devices and the like, and in many cases power supply via LAN cables is sufficient. Therefore, by supplying power through a LAN cable, it is possible to simplify the construction work and layout change work of the lighting system.

FIG. 2 is a block diagram of a terminal with power supply function. The terminal device 15 with power supply function includes a CPU 28, a communication circuit 30, a power supply circuit 31, a relay circuit 29, an RJ45 connector 36, and the like. The communication circuit 30 includes a dedicated communication circuit 45, an EtherNET HUB 46, a switching circuit 44, and the like. there is A commercial power supply 35 is connected to the power supply circuit 31 . The RJ45 connector 36 is connected to a plurality of lighting fixtures 20 , image sensors 21 and illuminance sensors 22 . The CPU 28 controls at least a protection circuit 33, a switching circuit, a relay circuit, and the like, which will be described later. Although the CPU 28 is omitted in FIGS. 3 and 4, the CPU 28 controls the protection circuit 33, the relay control circuit 50, the communication switching circuit 53, and the like in FIG.

FIG. 3 is a block diagram of the terminal 15 and lighting fixture 20. As shown in FIG. The terminal device 15 is provided with a communication circuit 30 , a power supply circuit 31 and a relay 34 . The communication circuit 30 can switch the communication line to the illumination circuit 20 between the leased line 26, the LAN 25, or no DATA. The LAN cable 27 has a power line 37 and a signal line 38 . The communication line selected by the communication circuit 30 is connected to the illumination circuit 20 or image sensor 21 via the RJ45 connector 36 , the signal line 38 of the LAN cable 27 , the RJ45 connector 42 and the communication circuit 41 . When the lighting fixture 20 has a communication function, one-way or two-way communication with the terminal device 15 is possible via the LAN cable 27 . Similarly, one-way or two-way communication is also possible between the image sensor 21 and the terminal 15 via the LAN cable 27 .
In this embodiment, switching of the communication circuit 30 is performed by one relay.

The power supply circuit 31 has a power supply circuit 32 and a protection circuit 33 . Power supply circuit 32 is powered by power supply 35 . The power supply 35 is, for example, a commercial power supply, which is not particularly limited, but can be AC 100V, for example. The power supply circuit 32 converts a power supply voltage, for example, AC 100 V, into DC 48 V, which is a voltage suitable for the LAN cable 27 , and outputs it via the protection circuit 33 . The protection circuit 33 monitors the output voltage or current of the power supply circuit, and when an abnormality is detected, for example, in the case of overcurrent or overvoltage, the power supply is stopped by, for example, turning off the relay 34 .

An output side of the power supply circuit 31 is connected to a relay 34 capable of on/off controlling power supply. The power output from the power supply circuit 31 is supplied to the lighting circuit 20 or the image sensor 21 via the relay 34 , the RJ45 connector 36 , the power line 37 of the LAN cable 27 , the RJ45 connector 42 and the power receiving circuit 40 . The RJ45 connector 36 and the RJ45 connector 42 are adapted to the POE standard.

When POE power is supplied from the terminal device A15 to the lighting fixture 20, the lighting fixture 20 can be lit by connecting the LAN cable 27. FIG. Alternatively, when POE power is supplied from the terminal device A15 to the lighting fixture 20, the lighting fixture 20 can also be turned on by connecting the dedicated communication line 26. FIG. To facilitate construction and layout in construction or layout change of lighting fixtures. In this embodiment, it is possible to wire the lighting equipment with a simple configuration.

FIG. 4 is a functional block diagram of the terminal A15. The terminal device 15 includes a power supply circuit 31 , a communication circuit 30 , a relay control circuit 50 , a power plus side relay 51 , a power minus side relay 52 , and an RJ45 connector 34 .

A dedicated communication line 26 from the lighting controller 11 and a LAN 25 are connected to the communication circuit 30 . In addition, the communication circuit 30 includes a communication line selector switch 39 and a communication line selector circuit 53. By switching the communication line selector switch 39 with the communication line selector circuit 53, the dedicated communication line 26, LAN 25 or DATA can be switched. It is configured to be able to select either signal line without. The communication line switching circuit 53 is switch-controlled by a signal from the lighting controller 11 . In this embodiment, an example in which the communication line switching circuit 53 is switched and controlled by a signal from the lighting controller 11 has been described, but this embodiment is not limited to this. The communication line switching circuit 53 may be switch-controlled.

The signal line selected in the communication circuit 30 is connected to the signal line 38 of the LAN cable 27 via the DATA terminal of the RJ45 connector 34 . The power supply circuit 31 includes a power supply circuit 32 and a protection circuit 33, converts the voltage of the power supply 35 into a voltage suitable for the LAN cable 27, and outputs power via the protection circuit 33 as described above. The power output from the power supply circuit 31 is supplied to the power plus and power minus terminals of the RJ45 connector 34 via the relay 34 . Although the form of the relay 34 is not particularly limited, for example, a double-cut relay comprising a power positive side relay 51 and a power negative side relay 52 can be used. The power plus side relay 51 and the power minus side relay 52 are synchronously on/off controlled by the relay control circuit 50 .

Signals from the protection circuit 33 and the dedicated communication line 26 are connected to the relay control circuit 50 . When the protection circuit 33 detects an abnormality in the output of the power supply circuit 32, for example, when overcurrent or overvoltage is detected, the relay control circuit 50 switches off the power positive side relay 51 and the power negative side relay 52. , to protect the circuit from power failures. In addition, the relay control circuit 50 is connected to the lighting controller 11 via the dedicated communication line 26, and can control ON/OFF of the power positive side relay 51 and the power negative side relay 52 according to the signal from the lighting controller 11. .
In this embodiment, the ON/OFF control of the relay 34 by the relay control circuit 50 is performed from the lighting controller 11 via the dedicated communication line 26, but the control of the relay 34 may be performed via the LAN 25.

When the lighting fixture 20 has a dimming circuit, the lighting fixture 20 is dimmed from 0% to 100% according to the dimming command by the signal of the dedicated communication line from the lighting controller 11 or the signal of the LAN 25. can do.
The lighting fixture 20 sends power to the power receiving circuit 40 via the power line 37 and sends a dimming command to the communication circuit 41 via the signal line 38 .
When receiving a dimming command for dimming 0%, the lighting fixture 20 is in a non-lit state, but still generates power for standby.
The terminal device A15 has a relay 34 disposed in front of the power supply output end 36 of the power supply line 37, so that the relay 34 is turned on to send power to the lighting fixture 20, and the relay 34 is turned off to turn off the lighting. The state in which power to the instrument 20 is turned off can be toggled. The terminal device A 15 can turn off the relay 34 and suppress the standby power consumption of the lighting device 20 when the 0% dimming command is sent to the lighting device 20 . In addition, the terminal A15 can turn off the relay 34 regardless of the dimming command to the lighting fixture 20 to suppress the standby power consumption of the lighting fixture 20 .

FIG. 5 is a wiring diagram of a LAN cable. The LAN cable 27 has a power plus line 55, a power minus line 56, a data line A57, and a data line B58.
The power plus line 55 and the power minus line 56 are the power line 37, and the data line A57 and the data line B58 are the signal line 38. FIG.
The LAN cable 27 includes a power plus line 55, a power minus line 56, a data line A 57, and a data line B 58, which are bundled together and covered, and connectors (not shown) are provided at both ends. The connectors at both ends (not shown) are connected to the terminal device A15 side connector 36 and the lighting fixture 20 side connector 42, respectively. The connector on the LAN cable 27 side has an outer shell made of a resin member, and can be safely attached when connecting to the connector 36 on the terminal A15 side and the connector 42 on the lighting fixture 20 side. Therefore, even workers who do not have special qualifications can carry out construction.
The LAN cable 27 can electrically connect the terminal device A15 and the lighting device 20 by fitting the connector on the LAN cable 27 side to the terminal device A15 side connector 36 and the lighting device 20 side connector 42. It can be connected without wire connection using a tool or the like.
In addition, by connecting the terminal device A15 and the lighting equipment 20 with the LAN cable 27, the work of connecting the electric wire for transmitting the power and the work of connecting the electric wire for transmitting the signal can be performed at the same time, thus facilitating the construction work. can do.

Details of connection between each wire of the LAN cable 27 and the RJ45 connector 36 on the terminal device A15 side and the RJ45 connector 42 on the lighting fixture 20 side will be described. The power plus line 55 is connected to the 4th and 5th terminals of the RJ45 connectors 36 and 42 via the LAN cable 27 connector. The negative power line 56 is connected to the 7th and 8th terminals of the RJ45 connectors 36 and 42 via the LAN cable 27 connector. The data line A57 is connected to the 1st and 2nd terminals of the RJ45 connectors 36 and 42 via the LAN cable 27 connector. The data line B58 is connected to the 3rd and 6th terminals of the RJ45 connectors 36 and 42 via the LAN cable 27 connector. Each wiring of the LAN cable 27 uses two ports of RJ45 connectors 36 and 42 .

The positive power supply side of the power supply circuit of the terminal 15 is connected to the 4th and 5th terminals of the RJ45 connector 36 so as to correspond to the power supply positive line 55 so as to correspond to each wiring. The power negative side is connected to terminals 7 and 8 of the RJ45 connector 36 to correspond to the power negative line 56, and one terminal of the communication circuit 30 is connected to the RJ45 connector 36 to correspond to the data line TX57. The other terminal of the communication circuit 30 is connected to the 3rd and 6th terminals of the RJ45 connector 36 so as to correspond to the data line RX58. Communication circuits 30, 41 are connected using two data lines, data line TX57 and data line RX58.

On the lighting device 20 side, the positive power supply side of the power receiving circuit 40 is connected to terminals 4 and 5 of the RJ45 connector 42 corresponding to the power positive line 55 so as to correspond to each wiring. 40 is connected to terminals 7 and 8 of RJ45 connector 42 to correspond to power supply minus line 56, and one terminal of communication circuit 41 is connected to RJ45 connector 40 to correspond to data line TX 57. 1 and 2 terminals of the connector 42, and the other terminal of the communication circuit 41 is connected to the 3 and 6 terminals of the RJ45 connector 42 so as to correspond to the data line RX58.

By wiring in this manner, power is supplied from the power supply circuit 31 of the terminal device 15 to the power reception circuit 41 of the lighting fixture 20 via the power plus line 55 and the power minus line 56 . The communication circuit 30 of the terminal device 15 and the communication circuit 41 of the lighting equipment are connected by a data line TX 57 and a data line RX 58. Signal line is connected.

5, one RJ45 connector 36 of the lighting fixture 20 has been described, but the terminal device 15 has a plurality of connectors 36, and the number is not particularly limited, but for example four or , 4×n (where n is a natural number, eg, n=1, 2, 3, 4, . . . ).

[Embodiment 2]
A lighting control system according to Embodiment 2 of the present disclosure will be described with reference to FIG. FIG. 6 is a block diagram of a communication circuit according to the second embodiment. In FIG. 6, the same reference numerals are assigned to the same configurations as in the first embodiment, and the description thereof will be omitted. In FIG. 6, the configurations of the switching circuit 44 and the dedicated communication relay 4 are different from those of the first embodiment.

One contact of the communication line changeover switch 39 and one contact of the power supply changeover switch 47 are connected to a dedicated communication circuit 45 via a dedicated communication relay 48 . The other contact of the communication line selector switch 39 is connected to the HUB 46 . The other contact of the power supply changeover switch 47 is connected to the power supply circuit 31 and POE power is supplied. The dedicated communication relay 48 , the power supply changeover switch 47 and the communication line changeover switch 39 are controlled by the CPU 28 . The CPU 28 operates the dedicated communication relay 48, the power supply changeover switch 47, and the communication line switching based on a command by a dedicated communication signal communicated from the lighting controller 11 via the dedicated communication line 26 or a LAN signal communicated from the HUB 43 via the LAN 25. It controls switching between on and off of the switch 39 .

The RJ45 connector 36 has a power supply connector 65 and a communication connector 66 . The output of the power supply changeover switch 47 is connected to the power supply connector 65 , and the output of the communication line changeover switch 39 is connected to the communication connector 66 . In the power supply connector 65, either the 48V POE power supply 31, the dedicated communication circuit 45 when the dedicated communication relay is ON, or no signal when the dedicated communication line is OFF, is connected to the dedicated communication relay by the CPU 28. 48 and the power supply changeover switch 47 are selectively connected. On the other hand, in the communication connector 66, either the dedicated communication circuit 45 when the dedicated communication relay is ON, or no signal when the dedicated communication line is OFF is connected to the dedicated communication relay 48 and the dedicated communication relay 48 by the CPU 28. It is selectively connected based on the control of the communication line selector switch 39 . Since the power supply connector 65 and the communication connector 66 can independently switch between the power supply and the communication line via the power supply selector switch 47 and the communication line selector switch, respectively, the power supply can be turned on while the communication line is connected. It can be switched off. Also, the LAN wiring can always be connected to the lighting equipment, the image sensor, or the illuminance sensor regardless of whether the dedicated communication relay 48 is on or off.

[Embodiment 3]
A lighting control system according to Embodiment 3 of the present disclosure will be described. When the communication line such as the dedicated communication line 26 or the LAN 25 is not connected to the terminal device 15, the communication line selector switch 39 of the communication circuit 30 is switched to no DATA, and no communication line is connected to the data TX and data RX. is not connected.

As a modification, the terminal device 15 may be connected to either the dedicated communication line 26 or the LAN 25 . In this case, the communication line selector switch 39 of the communication circuit 30 can be switched to either the dedicated communication line 26 or the LAN 25, or to no DATA.

[Embodiment 4]
A lighting control system according to Embodiment 4 of the present disclosure will be described. Through the RJ45 connector 36, the terminal device 15 can be connected not only to the lighting device 20 but also to the image sensor 21, the luminance sensor and other sensors, etc. In addition, power is supplied from the lighting fixture 20 to the image sensor 21 and the like via a LAN cable. The image sensor 21 is capable of human detection, brightness detection, etc., and is also capable of calculating illuminance from luminance. A luminance sensor is provided facing the lighting and can detect the brightness around the lighting.

[Embodiment 5]
A lighting control system according to Embodiment 5 of the present disclosure will be described. The lighting control system of this embodiment connects a tester capable of supplying power to the terminal device 15 at the time of temporary wiring. The power source 35 is not connected to the terminal device 15 during temporary wiring during construction. In this case, it is possible to supply power to the terminal device 15 by connecting a tester capable of supplying power to the connector 42 .

At least one of the protection circuit 33 of the power supply circuit 31 and the power supply circuit 32 is configured to detect the connection of the tester, and the power supply circuit 32 is provided with a function of receiving power from the tester. can be powered from the tester. Thus, even if the terminal device 15 is not connected to the power supply 35, the terminal device 15 receives power from the tester, thereby making it possible to check the wiring and operation of the lighting control system during temporary wiring.

[Embodiment 6]
31 A lighting control system according to Embodiment 6 of the present disclosure will be described with reference to FIG. FIG. 7 is a wiring diagram of an example when a tester is connected, and the same reference numerals are used for the same configurations as in FIGS. 1 to 6, and the description thereof will be omitted.

FIG. 7 shows terminal A15 and terminal B16, which are ceiling 6A relay terminals. A lighting device 20, an image sensor 21, and a brightness sensor 22 are connected to the terminal device A and the terminal device B, respectively. The terminal A15 and the terminal B16 are connected to the lighting controller 25 via a communication line and to the HUB or POE-HUB 14 via a LAN.

In order to check the connection state of the wiring at the time of wiring construction, it is possible to connect a wiring check tester 60 to the HUB 14 and supply power from the power supply circuit of the wiring check tester 60 to the LAN terminal of the terminal device. can. When the tester 60 is connected to the POE-HUB 14, POE power supply becomes possible, so it is possible to check the wiring condition even in the middle of construction before connecting the commercial power supply to each part.

As described above, the lighting control system has been described in the embodiments of the present disclosure, but the above embodiments are examples of lighting control systems for embodying the technical idea of the present disclosure, and the present disclosure is specified to these. It is equally applicable to other embodiments such as modifications of each embodiment and combinations of each embodiment.

10 PC, 11 lighting controller, 12 relay terminal, 13 switch, 14 HUB, 15 terminal device A, 16 terminal device B, 17 terminal device C, 20 lighting equipment, 21 image sensor, 22 luminance sensor, 25 LAN, 26 dedicated communication line, 27 LAN cable, 28 CPU, 29 relay circuit, 30 communication circuit, 31 feeding circuit, 32 power supply circuit, 33 protective power supply, 34 relay, 35 power supply, 36 connector, 37 power supply line, 38 communication line, 39 communication line switching switch, 40 power receiving circuit, 41 communication circuit, 42 connector, 43 HUB (POE-HUB), 44 switching circuit, 45 dedicated communication line, 46 EtherNet HUB, 47 power supply relay, 48 dedicated communication relay, 50 relay control circuit, 51 power positive side relay, 52 power negative side relay, 53 communication line switching circuit, 54 communication line switching switch, 55 power positive line, 56 power negative line, 57 data line TX, 58 data line RX, 60 tester, 65 power supply connector, 66 communication connector;

Claims (12)

a lighting fixture that illuminates the lighting space;
a lighting control device that controls the lighting fixture;
a terminal device with a switch function provided between the lighting fixture and the lighting control device;
A lighting control system comprising:
The lighting control system, wherein the terminal device with switch function is connected to one or more of the lighting control devices via DC power supply wiring. 2. The lighting control system according to claim 1, wherein said terminal device with switch function and said lighting fixture are connected by DC power supply wiring having a plurality of wirings including a signal line and a DC power supply line. 3. The lighting control system according to claim 2, wherein the terminal device with switch function has a relay capable of turning on/off power supply to the DC power supply wiring. 4. The lighting control system according to claim 3, wherein said relay can turn on/off power supply from said power line, and said signal line is not provided with said relay. 5. The lighting control system according to any one of claims 1 to 4, wherein the lighting control device includes at least one lighting controller, and the lighting controller communicates with the terminal device with switch function according to a specific protocol. 6. The lighting control system of claim 5, wherein said relay is controlled by said lighting controller. 7. The lighting control system according to claim 5, wherein said lighting control device further includes other lighting control means for communicating with said terminal device with switch function by a protocol different from that of said lighting controller. The terminal device with switch function and the lighting fixture are connected by a DC power supply wiring having a plurality of wirings including a power supply line and a signal line,
8. The signal line is selectively connected to one of a plurality of signals including at least a signal from the lighting controller, a signal from the other lighting control means, or no signal. The lighting control system according to . 9. The lighting control system according to any one of claims 1 to 8, wherein a sensor can be connected to the terminal device with switch function via a DC power supply wiring. 10. The lighting control system according to any one of claims 1 to 9, wherein a wiring confirmation tester can be connected to the terminal device with a switch function via DC power supply wiring. 11. The lighting control system according to claim 10, wherein the wiring confirmation tester can supply power to a terminal device with a switch function. The lighting control system according to any one of claims 1 to 11, wherein the DC power supply wiring is POE.

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