JPH0671342B2 - Button telephone device - Google Patents

Description

The present invention relates to a button telephone device, and more particularly to a main control unit and a control information communication unit thereof.

[Conventional technology]

A conventional key telephone device includes a main control unit that controls the entire device and interface units that interface with a key telephone connected to the key telephone device, a single telephone, or a line accommodated in the key telephone device. It has one or a plurality of control information communication units, and bidirectional communication of control information between the main control unit and the interface unit is performed by the control information communication unit. In this device, the main control unit cannot determine whether the control information communication unit is in operation, is in an inactive state, or is not equipped with the control information communication unit. When the communication part is in the operation stop state or is not installed, the main control part reads wrong information from the control information communication part, or simply determines that there is no control information. .

[Problems to be solved by the invention]

That is, in the conventional key telephone device, since the main control unit cannot determine the operating status or the mounting status of the control information communication unit, there is a drawback that it causes a malfunction if it stops operating or is not mounted. is there.

Further, when the control information communication unit changes from the operation stop state to the operation state, or when the control information communication unit is mounted and starts the operation, the main control unit cannot determine the start of operation of the control information communication unit.
The control for initializing each interface unit cannot be performed.

An object of the present invention is to eliminate such drawbacks, to prevent malfunction even when the control information communication unit stops operating or is not mounted, and to properly perform interface initialization. It is to provide a key telephone device that can be used.

[Means for solving problems]

The key telephone device of the present invention includes one or more two-way communication of control information data between a key telephone unit, a single telephone unit, or an interface unit for interfacing with a line and a main control unit for controlling the entire device. In the key telephone device performed by the control information communication unit, the control information communication unit adds a confirmation code indicating that the control information communication unit is operating to the control information data to be transmitted to the main control unit. Wherein the main control unit has a determination unit that determines whether or not the recognition code is included in the data from the control information communication unit and determines the operation status of the control information communication unit. To do.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. This key telephone device includes a main control unit 1 that controls the entire device.
When the interface unit 3 ₁₁ ~3mn that provides an interface with line key telephone, accommodated in a single phone or key telephone system, which is connected to the key telephone system,
The control information communication unit 2 _{1 to} 2 m that performs bidirectional communication of control information between the main control unit 1 and the interface units 3 _{11 to} 3 mn, and the main control unit 1 and the control information communication unit 2 _{1 to} 2 m are connected. a main control unit bus 4, the control information communication unit 2 ₁ to 2 m and the interface section 3
And an interface bus 5 ₁ ~5m for connecting the _{11 ~3mn.}

Next, the operation of this device will be described. The main control unit 1 sends the control information to the control information communication unit 2 ₁ to 2 m through the main control unit bus 4, the control information communication unit 2 ₁ to 2 m is control information interface bus 51 _to the main control unit 1 through 5m sent to the interface unit 3 ₁₁ ~3mn. On the contrary, the control information communication unit 2 ₁ ~
2m is an interface data stream D ₁ -Dn received from the interface unit 3 ₁₁ ~3mn, when the main control unit 1 accesses the control information communication unit 2 ₁ to 2 m, and sends to the main control unit 1.

As when the control information communication unit 2 ₁ to 2 m is for sending the main control unit 1 interface data sequence D ₁ -Dn the indicated identification code I and the data end code E in Figure 2 appended to the beginning and end, respectively Data in various formats. The identification code I is used to inform the main control unit 1 that the control information communication unit 2i (i = 1 to m) accessed by the main control unit 1 is operating normally, and the data end code E Is for indicating the end of the interface data strings D _{1 to} Dn.

When the main controller 1 receives data from the control information communication unit 2 ₁ to 2 m, it is first to detect the identification code. If this code can be detected, it is determined that the accessed control information communication unit 2i is operating normally, and the interface data string following this is read until the data end code E is received.
If the recognition code I cannot be detected, it is determined that the accessed control information communication unit 2i is not operating normally, and the data is not read.

The main control unit I if the control information communication unit 2i becomes the halt of the operating state, performs the processing when the interface unit 3 ₁₁ ~3mn could not control. On the contrary, when the operation is changed from the operation stop state to the operation state, the interface unit 3 ₁₁
Performs processing and control for initialization of ~ 3mn.

〔The invention's effect〕

As described above, in the key telephone device of the present invention, the control information communication unit always attaches the identification code to the data and sends it to the main control unit. Therefore, the main control unit can determine whether the control information communication unit is operating or whether the control information communication unit is mounted by the presence or absence of this code, and it is possible to prevent malfunction due to incorrect data reading or the like. Further, when the control information communication unit stops operating and the interface unit becomes uncontrollable from the main control unit, and conversely when the control information communication unit starts operating and the interface unit can be controlled. It becomes possible to perform the processing and control of.

[Brief description of drawings]

Figure 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a data format diagram of the control information data sent from the control information communication unit 2 ₁ to 2 m in the embodiments to the main control unit 1. 1 ... Main control unit 2 ₁ ~ 2m ...... Control information communication unit 3 ₁₁ ~ 3mn ...... Interface unit 4 ... Main control unit bus 5 ₁ ~ 5m ...... Interface bus

Claims (1)

[Claims] 1. One or more control information for bidirectional communication of control information data between a button telephone, a single telephone, or an interface section for interfacing with a line and a main control section for controlling the entire apparatus. In the key telephone device performed by a communication unit, the control information communication unit has a data processing unit that adds a confirmation code indicating that the control information communication unit is operating to the control information data transmitted to the main control unit. The button telephone, wherein the main control unit has a determination unit that determines whether or not the recognition code is included in the data from the control information communication unit and determines the operation status of the control information communication unit. apparatus.