JPH03187594A - Packaging information transmission system - Google Patents

Abstract

PURPOSE:To eliminate the need for the installation of a protective time setting means at a rack side by starting to control a control part in a rack at the time of the completion of power-on-clear by using the timing signal of the completion of the power-on-clear as packaging information. CONSTITUTION:When power supply is charged to a panel 10 (time t0), the output signal of a power-on-clear circuit 1 is a low level, and it becomes a high level at the time of the completion of the power-on-clear of the control part 3 (time t1). This output signal is sent to a detection circuit 4 in the rack through an inverter 2 as the packaging information, and the detection circuit 4 having received the information starts the control from the control part 5 to the control part 3. At that time, as for the control part 3 in the panel 10, the power-on-clear is released already, and it is in a controllable state. Thus, the rack side need not be provided with the protection time setting means, and the enlargement of the scale of a device can be prevented.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mounting information transmission system, and in particular, to a method for transmitting the mounting state of panels to a control unit in a rack in a telecommunication device or the like in which panels can be inserted into and removed from a rack. Regarding implementation information transmission method.

[Conventional technology]

In this type of conventional mounting information transmission system, as shown in FIG. 2(a), the ground of the panel 11 is connected to the detection circuit 4 in the rack when the panel 11 is mounted. When the panel 1 is mounted on the rack, as shown in Fig. 2(b),
The detection circuit 4 is connected to the power supply and the ground potential (G) is connected to the input terminal of the detection circuit 4 (time to). When the detection circuit 4 is given the ground potential from the panel 11, Control to the control unit 3 inside is started.

[Problem to be solved by the invention]

In the conventional mounting information transmission method described above, the mounting information of the panel 11, that is, the ground potential is output immediately upon mounting the panel.
Even during the period (time t. to tz) in which the controller 3 is powering on and clearing the controller 3, the controller 5 often starts controlling the controller 3, causing a malfunction of the panel 11. In order to prevent this, it is necessary to provide a protection means such that the control unit 5 starts controlling the control unit 3 after a certain protection period after the detection circuit 4 detects the mounting information of the panel 11. There is a problem in that the scale of the device increases.

[Means to solve the problem]

The mounting information transmission method of the present invention transmits the power-on clear completion within the panel as the mounting information to the control means in the rack that starts the operation control of the panel according to the mounting information connected when the panel is mounted. The timing signal shown in the figure is connected at the time of mounting.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1(a) and 1(b) are block diagrams and signal timing diagrams of one embodiment of the present invention. When power is applied to the panel 10 (time to), the output signal of the power-on clear circuit 1 is at a low level, and when the power-on clear of the control section 3 ends (time tl), it becomes a high level. This output signal is sent through the inverter 2 to the detection circuit 4 in the rack as mounting information. The detection circuit 4 that received this information,
Control from the control unit 5 to the control unit 3 is started. At this time, the control section 3 in the panel 10 has already released the power-on clear and is in a controllable state.

〔Effect of the invention〕

As explained above, the present invention uses the power-on clear end timing signal as implementation information to
This has the effect that the control section inside the rack can be started to be controlled when the power-on clear is completed without providing a protection time setting means on the rack side.

[Brief explanation of drawings]

FIGS. 1(a) and (b) are a block diagram and signal timing diagram of an embodiment of the present invention, and FIGS. 2(a) and (b) are a block diagram and timing diagram of a conventional system. Engineering: Power-on clear circuit, 2: Inverter,
3.5...Control unit, 4...Detection circuit, 10.17.
··panel.

Claims (1)

[Claims] At the time of mounting, a timing signal indicating the end of power-on clear in the panel is connected as the mounting information to a control means in the rack that starts operating control of the panel according to the mounting information connected when the panel is mounted. An implementation information transmission method characterized by the following.