JP2688300B2 - Redundant circuit device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duplicated circuit device for duplicating an interface between a plurality of cards mounted on a mother board and an external device.

[0002]

2. Description of the Related Art FIG. 8 is a perspective view showing a conventional duplex circuit device. In the figure, 1 and 2 are cards as N-system and E-system trunk cards, and 5 are cards 1 and 2, respectively. Mother cards, 14 and 15 are front panels attached to the cards 1 and 2, and 16 and 17 are cards 1 and 2, respectively.
The connectors 18 and 19 attached to each of the connectors are connected to the end of the forked cable 20 for duplication,
The other end of the duplication cable 20 is connected to an external device by another connector connected to the cables 6 and 17.

Next, the operation will be described. First, the duplex cable 20 is connected to each of the N and E cards 1 and 2 through the connectors 16, 17 and 18, 19; however, because of the duplex configuration, as shown in FIG. The duplication cable 16 is connected. In addition, in the duplexing cable 20, the connectors 18 and 19 attached thereto are connected to the connectors 1 on the cards 1 and 2 side.
By being fitted to the cards 6 and 17, the cards 1 and 2 are electrically and mechanically connected to each other.

When the connectors 18 and 19 are fitted together, the front panels 14 and 15 are fixed with screws so that the cards 1 and 2 do not project to the front. Further, the mother board 5 has a circuit pattern for transmitting and receiving signals between the cards 1 and 2, and is electrically and mechanically coupled between the cards 1 and 2, and these are connected via a duplication cable 20. Redundantly connected to external equipment.

[0005]

Since the conventional duplication circuit device is constructed as described above, a duplication cable 16 having a special shape must be used for duplication, and each card 1 In order to prevent the cards 1 and 2 from being pushed out to the front when the connectors 21 and 22 are fitted to the connectors 2 and 2, work such as screwing the front panels 14 and 15 is required, which causes deterioration of workability. There were problems such as increased costs. In addition, since the connectors 16 and 17 for interfaces are accommodated in each of the cards 1 and 2, the number of mounting on the motherboard 5 is limited,
There were problems such as the reduction of the card mounting area.

The invention of claim 1 has been made to solve the above-mentioned problems, and can easily cope with a duplicated structure and does not require a front panel on the front surface of the card to suppress a reduction in the card mounting area. It is an object of the present invention to obtain a duplex circuit device that can be used.

In addition to the above object, it is an object of the invention of claim 2 to obtain a duplex circuit device capable of supporting a duplex interface by using a duplex backboard.

[0008]

According to another aspect of the present invention, there is provided a duplexing circuit device, wherein a duplexing extension pattern is provided on a motherboard so as to guide a signal contained in an adjacent slot, and the duplexing pattern is provided on the motherboard. In, the terminals that connect the extension patterns for duplication above
The external interface connector provided and the external interface
Interface connector and connect between the above terminals
Motherboard interface with redundant connection pattern
Interface connector, and the duplication cable is
The above motherboard interface connector to the other end
It has an external device interface connector .

In the duplex circuit device according to the present invention, a duplex connection pattern for connecting adjacent duplex extension patterns is provided on the duplex backboard, and a connector is provided on the duplex backboard. the redundant connection pattern, in which so as to connect the external device through the interface cable to the connector.

[0010]

In the motherboard interface connector according to the invention of claim 1, by connecting this to the external interface connector on the motherboard, the adjacent duplication extension patterns can be connected by the duplication connection pattern. The external device and each card can be redundantly connected via the connection pattern and redundant cable.

Further, in the duplexing backboard according to the invention of claim 2, the duplexing connection pattern is formed by connecting the duplexing connection pattern to the duplexing extension pattern adjacent to each other on the motherboard through a connector or the like. Also, an external device and each card can be connected in duplicate via a duplication cable.

[0012]

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. FIG.
In the above, 1 and 2 are cards as N-type and E-type trunk cards, and these are used to duplicate the system. No. 3 is an N-type card and is not duplicated.
Reference numeral 5 denotes a duplication extension pattern extended on the mother board 4 so as to guide signals from adjacent slots, and each duplication extension pattern 5 is connected to a terminal of the external interface connector 9.

Reference numeral 6 denotes a mother board interface connector fitted to an external interface connector 9 on the mother board 4, which has a duplication connection pattern 6a for internally connecting N system and E system signals. 7 is an external device interface connector, and a duplication cable 8
Has the motherboard interface connector 6 and the external device interface connector 7 at both ends.

Next, the operation will be described. First, signals from adjacent slots are supplied to the respective duplication extension patterns 5 extended on the mother board 4 to which a plurality of cards 1 to 3 are attached, and each of these signals is one external interface connector. Up to 9. Therefore, the duplication connection pattern 6a for connecting signals of two systems
Motherboard interface connector 6 with
Just by fitting it to the external interface connector 9,
Enables system duplication.

Embodiment 2 FIG. In the above embodiment, the extension pattern 5 for duplication is formed as a fixed pattern in which the circuit cannot be changed.
As shown in FIG. 3, a switch 10 is provided in the middle of the extension pattern 5 for duplication, and the switch 10 is turned off to connect the duplication cable 8 to each one of the cards 1 to 3 for duplication. You will be able to deal with the case when there is no.

Embodiment 3 FIG. Further, as shown in FIG. 1, it is not necessary to extend all the signals on the mother board 4 in the lateral direction, and as shown in FIG. ) May be supplied to the DSUB connector 13 via the extended pattern 12a and the switch 12 put therein, and in this case, the switch 12 is turned off so that no signal is transmitted to the DSUB connector 13. be able to.

Embodiment 4 FIG. FIG. 4 is a block diagram showing an embodiment of the invention of claim 2, in which 1 is an N card and 2 is an E card. Is duplicated. 3 and 4 are N-type cards, respectively, and they are not duplicated. A mother board 4A has a plurality of extension patterns 5A for duplication for supplying signals from adjacent slots. Reference numeral 21 is a duplication backboard that connects signals of two systems by a duplication connection pattern 22, and reference numerals 23 and 24 are singularization backboards having no duplication connection pattern. 25
Is a modular type connector for the external interface, which is connected to each redundant connection pattern.

FIG. 5 is a mounting view of the duplex circuit device shown in FIG. 1, in which the card 1,
2 and 3 are mounted, and a duplexing backboard 21 and a singularizing backboard 23 are mounted on the rear side through a pair of connectors 28. In addition, backboard 2
A unique DSU interface cable 26 is mounted on each of the cables 1 and 23 as a duplication cable, and is connected to an external device via a DSU interface connector 27.

Next, the operation will be described. A signal from an adjacent slot is supplied to each duplication extension pattern 5A on the motherboard 4A, and each signal reaches the connector 28. Accordingly, the duplexed for back board 21 signals of two systems are connected by a redundant connection pattern 22, only the connector coupling is inserted into the connector 28 on the previous motherboard 4A, it can be realized duplexing system.

When the duplication is not performed, the singulation backboards 23 and 24 which do not have the duplication connection pattern 22 as described above may be connected to a predetermined portion of the mother board 4A by a connector. Also, a single backboard 2
Since a connector 25 connected to an external device is mounted on the backing boards 3 and 24 and the duplication backboard 21, a DS having a DSU interface connector 27 is mounted on the connector 25.
Connect the U interface cable 26. By doing so, it is possible to realize a single system.

Embodiment 5 FIG. It should be noted that in the above embodiment, the unification backboards 23 and 24 are used to realize the unification and duplication of the system, respectively.
And the backboard 21 for duplication are used separately,
As shown in FIG. 6, by providing a switch 29 in the duplication connection pattern 22 of the duplication backboard 21 and turning it off or on, it can be used as a backboard for both single and dual use. it can.

Embodiment 6 FIG. Further, as shown in FIG. 7, a plurality of modular connectors 25, which are external connection interface connectors, are mounted on a duplexing backboard 21A, and a plurality of sets of duplexing connection patterns 22 are separately connected to them. Multiple lines can be accommodated and connected in one system.

[0023]

As described above, according to the first aspect of the present invention, the signal in the adjacent slot is guided,
An external in- put provided with terminals for connecting the duplication extension pattern extended on the motherboard and the adjacent duplication extension patterns on the motherboard.
Interface connector and the external interface connector to connect between the duplication extension patterns.
Motherboard interface with redundant connection pattern
Interface connector, and the duplication cable is
Since the motherboard interface connector is configured to have the external device interface connector at one end and the other end, it is possible to easily cope with the duplicated configuration of the system and eliminate the need for a forked cable for duplication like the conventional one. Further, since the connector for the cable interface is not directly housed on the card, there is an effect that the front panel used for inserting the connector can be eliminated.

Further, according to the invention of claim 2, a duplexing connection pattern for connecting adjacent duplexing extension patterns is provided on the duplexing backboard, and a connector is provided on the duplexing backboard to perform the duplexing. connect use connection pattern, since it is configured so as to connect the external device through the interface cable to the connector,
There is an effect that a duplication backboard can be used to easily realize duplication connection between an external device and each card.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a duplex circuit device according to an embodiment of the present invention.

2 is a configuration diagram showing another embodiment of the motherboard in FIG. 1. FIG.

FIG. 3 is a configuration diagram showing still another embodiment of the motherboard in FIG.

FIG. 4 is a configuration diagram showing a duplex circuit device according to an embodiment of the present invention.

5 is a perspective view of the duplicated circuit device shown in FIG.

6 is a configuration diagram showing another embodiment of the duplexing backboard in FIG.

7 is a configuration diagram showing still another embodiment of the duplexing backboard in FIG.

FIG. 8 is a perspective view showing a conventional duplex circuit device.

[Explanation of symbols]

1-3 cards, 4 motherboards, 4A motherboards, 5 extension patterns for duplication, 5A extension patterns for duplication, 6 motherboard interface connectors,
6a Duplex connection pattern, 7 External device interface connector, 8 Duplex cable, 9 External interface connector, 21 Duplex backboard,
22 connection pattern for duplication, 25 connector, 26
Duplex cable.

Claims (2)

(57) [Claims] 1. A mother board on which a plurality of cards are mounted, and an extension pattern for duplication extended on the mother board so as to guide signals in adjacent slots.
On the motherboard, an external interface connector having terminals for connecting the adjacent duplication extension patterns to each other, and a motherboard interface having a duplication connection pattern connected to the external interface connector and connecting between the terminals A duplex circuit device comprising a connector and a duplexing cable having the motherboard interface connector at one end and an external device interface connector at the other end. 2. A mother board on which a plurality of cards are mounted, and an extension pattern for duplication extended on the mother board so as to guide signals in adjacent slots.
A duplexing backboard having a duplexing connection pattern for connecting the above-mentioned duplexing extension pattern ends to each other,
A duplex circuit device provided on the duplex backboard, comprising a connector for connecting the duplex connection pattern and an external device via a duplex cable.