JP2002141910A - Device for displaying lan channel state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for displaying a LAN channel state that employs 2 LEDs or below in mounting many LAN interfaces so as to individually display the state of LAN channels thereby limiting the mount space of light emitting diodes to be a necessity minimum value. SOLUTION: In the LAN channel display device consisting of a LAN controller 1 that can individually control n-sets of LAN channels, n-sets of the LAN interfaces 2-1, 2-2,..., 2-n, LAN connectors 3-1, 3-2,..., 3-n, a channel selection circuit 4 that selects one of the LAN channels connected to the LAN controller 1, and two LEDs 5a, 5b that display the state of the selected LAN channel by the channel selection circuit 4, the channel selection circuit 4 and the LEDs 5a, 5b configure a channel state display means that individually displays the state of the LAN channel connected to each LAN connector.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a LAN device having a plurality of LAN interfaces such as hubs, routers, bridges, etc.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a LAN line status display device in which a mounting space for a light emitting diode for displaying a line status of an AN line is reduced to a necessary minimum.

[0002]

2. Description of the Related Art Conventionally, LA such as hubs, routers, bridges, etc.
In a LAN device having a plurality of N interfaces,
The line status of the LAN line is indicated by two light emitting diodes (LE
In the case of the configuration shown in D), it is necessary to provide twice as many LEDs as the LAN interface in order to display the line states of a plurality of LAN lines connected to the LAN interface.

For example, in the conventional example shown in FIG. 4, a plurality of n LAN interface circuits 52-1 and 52- are connected to a single LAN controller 51 mounted on a circuit board (not shown).
, 52-n are connected in parallel, and LAN connectors 53-1, 53-2,..., 53 are connected to the LAN interface circuits 52-1, 52-2,.
-N and two LEDs 54a-1, 54b-1, and 5 corresponding to each LAN interface circuit.
4a-2, 54b-2, ..., 54a-n, 54b-
n is connected to the LAN controller 51.

In this conventional example, a LAN connector 53-1,
, 53-n, the line status of each LAN line connected to the LAN interface circuit 52-1,.
, 54a-n according to the detected line state.
, And 54b-n are turned on or blinked to individually display the line status of each LAN line.

[0005]

The above-mentioned conventional LAN
In the line status display device, it is necessary to provide twice as many LEDs as the LAN interface in order to individually display the line status. You run out of space.

An object of the present invention is to provide a LAN line status display device capable of individually displaying the line status of a LAN line by using two or less light emitting diodes even when a large number of LAN interfaces are mounted. With the goal.

[0007]

According to a first aspect of the present invention, there is provided a LAN controller capable of individually controlling a plurality of LAN lines, and a plurality of sets connected in parallel to the LAN controller. In a LAN line status display device comprising a LAN interface and a LAN connector, and line status display means for displaying a line status of a LAN line connected to each of the LAN connectors, the line status display means is connected to the LAN controller. And a line selecting means for selecting any one of the plurality of LAN lines, and two light emitting diodes for displaying a line state of the LAN line selected by the line selecting means.

According to a second aspect of the present invention, the line selecting means includes an individual selecting function for selecting any one of the plurality of LAN lines and an all selecting unit for selecting all of the plurality of LAN lines. It has a selection function, and when the all selection function is executed, the OR state of all LAN lines connected to the LAN controller is displayed by the two light emitting diodes.

In order to achieve the above object, a third aspect of the present invention provides an LA that can individually control a plurality of LAN lines.
An L controller comprising: an N controller; a plurality of sets of LAN interfaces and LAN connectors connected in parallel to the LAN controller; and line state display means for respectively displaying line states of the LAN lines connected to the LAN connectors.
In the AN line status display device, the line status display means is configured to represent a line status relating to one or more of a plurality of LAN lines connected to the LAN controller.
Character string information generating means for sequentially and repeatedly generating character string information of characters or more, and one seven-segment light emitting diode for displaying the character string information generated by the display information generating means at a preset display cycle. Features.

[0010]

According to the first aspect of the present invention, the line states of a plurality of LAN lines connected via a LAN connector to a plurality of LAN interfaces connected in parallel to a LAN controller capable of individually controlling a plurality of LAN lines are displayed. Line selection means for selecting one of a plurality of LAN lines connected to the LAN controller; and two light emitting diodes for displaying the line status of the LAN line selected by the line selection means. Therefore, even when a large number of LAN interfaces are mounted, the line state of the LAN line can be individually displayed by the two light emitting diodes. Therefore, the mounting space of the light emitting diode used for the line status display can be suppressed to a necessary minimum to mitigate the increasing tendency of the mounting density, thereby realizing the miniaturization of the device, the reduction of the device cost, and the reduction of the current consumption of the device. can do.

According to a second aspect of the present invention, the line selecting means in the first aspect of the present invention further comprises an individual selection function for selecting any one of the plurality of LAN lines and a full selection for selecting all of the plurality of LAN lines. All the LANs connected to the LAN controller when the all-selection function is executed.
Since the OR state of the line is displayed by the two light emitting diodes, an abnormality display can be performed, for example, when "a line abnormality has occurred in at least one of all connected LAN lines".

According to the third aspect of the present invention, a line state for displaying the line states of a plurality of LAN lines connected via a LAN connector to a plurality of LAN interfaces connected in parallel to a LAN controller capable of individually controlling the plurality of LAN lines. Character string information generating means for sequentially and repeatedly generating character string information of two or more characters representing a line state relating to one or more of a plurality of LAN lines connected to the LAN controller; The present invention is constituted by one 7-segment light emitting diode for displaying the character string information generated by the means at a preset display period.
The line status of the line can be individually displayed. Therefore, the mounting space for the 7-segment light emitting diode used for displaying the line status can be suppressed to a necessary minimum to mitigate the tendency to increase the mounting density. Can be realized.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram illustrating an overall configuration of a LAN line status display device according to a first embodiment of the present invention. As shown in FIG. 1, a LAN line status display device of this embodiment is a LAN controller 1 mounted on a circuit board (not shown) and capable of individually controlling a plurality of n LAN lines.
And a plurality of n sets of Ls connected in parallel to the LAN controller 1
, 2-n and LAN connectors 3-1, 3-2, ..., 3-n
A line selecting circuit 4 for selecting any one of a plurality of LAN lines connected to the LAN controller 1, and two light emitting diodes (LED) for displaying a line state of the LAN line selected by the line selecting circuit 4 5a, 5b, and the line selection circuit 4 and the LEDs 5a, 5b
Line status display means for individually displaying the line status of the LAN line connected to each LAN connector is provided.

The line selection circuit 4 has, for example, a total (n + 2) of n positions corresponding to a plurality of n lines and one position corresponding to all of the n lines.
1) A mechanical changeover switch having one position is used. This line selection circuit 4 is composed of a plurality of n lines L
In addition to an individual selection function for selecting any one of the AN lines, a full selection function for selecting all of the plurality of n-line LAN lines is provided.

The two LEDs 5a and 5b are respectively
It is provided for displaying different functions, and a plurality of line states set in advance can be displayed by combining “lights off / lighting / flashing” and a display color “green / orange” at the time of lighting. Specifically, when the LED 5a is set so as to light green when the link is established and to blink when transmitting, the light may be turned off when the link is abnormal. In addition, if it is set to light green at 10 BASE and light orange at 100 BASE, the light may be turned off when a collision occurs between LAN lines. In this embodiment, the two LEDs 5
Although the normal state and the abnormal state of the LAN line are displayed by a and 5b, only the abnormal state may be displayed.

Next, the operation of the LAN line status display device of the present embodiment will be described. For example, when displaying the line status of the LAN line 2 connected via the LAN connector 3-2 among a plurality of n LAN lines connected to the LAN controller 1, first, the circuit selection circuit 4 is configured. An operation of switching the mechanical changeover switch to the “position corresponding to the LAN line 2” is performed. By this operation, LAN
The line state of the line 2 is detected by the LAN controller 1 via the LAN connector 3-2 and the interface circuit 2-2, and two LEDs 5a, 5a are determined according to the detection result.
b is a display mode set in advance (any of off / on / flashing). In this case, the line state of the LAN line 2 can be grasped by visually observing the display form of the two LEDs 5a and 5b.

Therefore, even in a configuration in which a plurality of n LAN interfaces are mounted, the two LEDs 5a, 5
bSince the line status of the LAN line can be individually displayed by the light emitting diode, the LED used for the line status display
The mounting space of the device can be suppressed to a necessary minimum to alleviate the tendency to increase the mounting density, so that the device can be downsized, the device cost can be reduced, and the current consumption of the device can be reduced.

When the mechanical switch constituting the circuit selection circuit 4 is switched to the "position for selecting all LAN lines", the LAN controller 1 changes the OR state of the line states of all LAN lines. The two LEDs 5a and 5b are detected and set to a preset display form (any of off / on / blinking) according to the detection result. In this case, by visually observing the display form of these two LEDs 5a and 5b, an abnormality display can be performed, for example, when "a line abnormality has occurred in at least one of all LAN lines".

FIG. 2 is a diagram illustrating an overall configuration of a LAN line status display device according to a second embodiment of the present invention. As shown in FIG. 2, the LAN line status display device of this embodiment is a LAN controller 1 mounted on a circuit board (not shown), which can individually control a plurality of n LAN lines, and is connected to the LAN controller 1 in parallel. , 2-n and LAN connectors 3-1, 3-2, ..., 3-n, and a plurality of n lines connected to the LAN controller 1 A 7-segment control circuit 6 for sequentially and repeatedly generating character string information of two or more characters representing a line state relating to one or two or more LAN lines, and character string information generated by the 7-segment control circuit 6 are preset. A 7-segment LED 7 for displaying at a display cycle.
The 7-segment LED 7 constitutes line status display means for individually displaying the line status of the LAN line connected to each LAN connector.

The seven-segment control circuit 6 includes registers 8, 9, a CPU 10, and a firmware 11, as exemplified in the detailed diagram of FIG. Register 8 is LAN
It has a storage capacity capable of storing four types of line information (therefore, a total of 4n line information) per line representing the line state of the n LAN lines connected to the controller 1. The above four types of line information include, for example, COL (collision display between LAN lines), LNK
(Link abnormal display), 10/100 (Connection speed display) and REC (Data reception display) shall be used.

The CPU 10 generates character string information of two or more characters representing the line status of one or more of the plurality of n LAN lines based on a procedure defined by the firmware 11, and generates character string information for one character. The character string information display control for sequentially storing the character string information stored in the register 9 on the 7-segment LED 7 and sequentially storing the character string information stored in the register 9 is performed. In addition,
The register 9 is provided to hold the information display on the 7-segment LED 7 for a certain period of time.

The seven-segment LED 7 is composed of seven linear segments and dots. When all of the LEDs are lit, the display shows "8.". In addition, numerals 0 to 9 and letters A and H are used. Can be displayed. In the present embodiment, “line state display for each state” or “line state display for each line” to be described later is performed by combining these numbers, alphabets, and dots.

Next, the operation of the LAN line status display device of this embodiment will be described. In the following display example, LAN line 1 and LAN line 5 are COL, LAN line 3 and LAN line 8 are link abnormal, and LAN lines 1 and L
The AN line 4 corresponds to a line state of 100 BASE (this is represented by H).

In the case of performing the "line state display for each state" in the line state, first, the CPU 10 sets "C1.5."
Is generated, and the character information constituting the character string is sequentially output to the 7-segment LED 7 via the register 9. Thus, by observing the display form of the 7-segment LED 7, the LAN line 1 and the LAN line 5 are displayed.
Can be grasped that there is a collision. If the display period of the character string is, for example, one second, a character string non-display period of a predetermined time is provided between the display period of the next character string. The display order of each LAN line is
It is specified in advance by the firmware 11.

Next, the CPU 10 generates a character string “L3.8.” And sequentially outputs the character information constituting the character string to the 7-segment LED 7 via the register 9.
Thus, by visually observing the display form of the 7-segment LED 7, it is possible to grasp that the LAN line 3 and the LAN line 8 have a link abnormality. Next, the CPU 10 generates a character string “H1.4.” And sequentially outputs character information constituting the character string to the 7-segment LED 7 via the register 9. Thereby, 7
By visually observing the display mode of the segment LED 7,
It can be understood that the LAN line 1 and the LAN line 4 are connected at 100BASE. Hereinafter, the character string display is repeated in the same manner.

On the other hand, in the case of performing "line state display for each line" in the line state, first, the CPU 10 sets "1C
A character string “H” is generated, and character information constituting the character string is sequentially output to the 7-segment LED 7 via the register 9. Thus, by observing the display form of the 7-segment LED 7, the LAN line 1
It is possible to know that the state is 00BASE.
Hereinafter, when the CPU 10 determines “3L”, “4H”, “5C”,
A character string “8L” is sequentially generated, and character information constituting the character string is stored in a register 9 via a register 9 in a 7-segment LE.
The data is sequentially output to D7. Thereby, 7 segment LED
By visually observing the display mode 7, it is possible to grasp that the LAN line 3 is in a link abnormal state, the LAN line 4 is in a 100 BASE state, the LAN line 5 is in a collision state, and the LAN line 8 is in a link abnormal state. it can.

Therefore, even in a configuration in which a plurality of n LAN interfaces are mounted, the line state of the LAN line can be individually displayed by one seven-segment light emitting diode 7, so that the seven-segment light emission used for the line state display is provided. The mounting space of the diode can be suppressed to a necessary minimum to mitigate the tendency to increase the mounting density, and the device can be reduced in size, the device cost can be reduced, and the current consumption of the device can be reduced.

In this embodiment, both the normal state and the abnormal state are displayed as the state of the LAN line, but only the abnormal state is displayed based on the premise that "the case where an abnormality occurs is rare". You may make it. In this case, since the character string displayed by the single 7-segment LED 7 is shortened, there is an advantage that the displayed content can be easily grasped.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a LAN line status display device according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an overall configuration of a LAN line status display device according to a second embodiment of the present invention.

FIG. 3 is a detailed diagram of a 7-segment control circuit according to a second embodiment.

FIG. 4 is a diagram showing a configuration of a conventional LAN line status display device.

[Explanation of symbols]

1 LAN controller 2-1, 2-2, ..., 2-n LAN interface 3-1, 3-2, ..., 3-n LAN connector 4 Line selection circuit 5a, 5b Light emitting diode (LED) 6 7 segment control circuit 7 7 segment light emitting diode (7 segment LE
D) 8,9 register 10 CPU 11 firmware

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K033 AA05 AA06 CC04 DB03 DB05 DB20 EA04 EA06 EA07 5K035 AA03 AA07 BB03 CC10 DD01 EE02 HH03 JJ01 JJ04 KK04

Claims (3)

[Claims] An LA that can individually control a plurality of LAN lines
An L controller comprising: an N controller; a plurality of sets of LAN interfaces and LAN connectors connected in parallel to the LAN controller; and line state display means for respectively displaying line states of the LAN lines connected to the LAN connectors.
In the AN line state display device, the line state display means may be a line selection means for selecting any one of a plurality of LAN lines connected to the LAN controller, and a line state of the LAN line selected by the line selection means. A LAN line status display device comprising two light emitting diodes for displaying. 2. The method according to claim 1, wherein the line selection unit is configured to switch the plurality of LANs.
In addition to an individual selection function for selecting any one of the lines, an all-selection function for selecting all of the plurality of LAN lines is provided, and all the LAN lines connected to the LAN controller are connected when the all-selection function is executed. 2. The LAN line status display device according to claim 1, wherein the OR status is displayed by the two light emitting diodes. 3. An LA capable of individually controlling a plurality of LAN lines.
An L controller comprising: an N controller; a plurality of sets of LAN interfaces and LAN connectors connected in parallel to the LAN controller; and line state display means for respectively displaying line states of the LAN lines connected to the LAN connectors.
An AN line status display device, wherein the line status display means comprises a character for sequentially and repeatedly generating two or more characters of character string information representing a line status relating to one or more of a plurality of LAN lines connected to the LAN controller. A LAN line status display device comprising: a column information generating unit; and one seven-segment light emitting diode for displaying character string information generated by the display information generating unit at a preset display period.