JP2646982B2 - Partial mounting method of transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partial mounting system for a transmitter.

[0002]

2. Description of the Related Art In this type of conventional system, an alarm is issued if all of the transmission boards are not mounted on a multiplex board, and a signal can be transmitted even though an alarm is issued. Signal transmission was stopped by the multiplex board because of the idea that there was. In addition, as a prior art regarding this type of system,
For example, JP-A-56-125128 and JP-A-2-
Techniques described in, for example, Japanese Patent Application Laid-Open No. 149031 and Japanese Patent Application Laid-Open No. 3-192835 are known.

[0003]

In this conventional system,
If all the transmission boards are not installed, an alarm signal will be generated, so the signal is stopped at the multiplex board.
Even when transmitting the signal capacity of only one transmitter, there is a problem that all the transmitters must be mounted.
The present invention has been made to solve such a problem.
It is an object of the present invention to obtain a partial mounting method of a transmission board that can transmit only a signal capacity that can be processed by the transmission board if at least one transmission board is mounted.

[0004]

Parts mounting method of the transmission board of the present invention SUMMARY OF], there is provided an apparatus having a function of all n pieces of transmission board stops which do unless signal transmission implementation, this
Signals for monitoring n signals from the n transmitters
When an alarm is input from the monitoring circuit and the signal monitoring circuit,
If no control signal is input, stop sending multiplexed signals.
When an alarm signal is sent out and a control signal is input,
Multiplexer that generates and sends out signals and stops sending out alarm signals
Means and control signal if at least one transmitter is installed
And a control panel for outputting. The partial implementation method of the transmission board according to another aspect of the present invention, multiplexing circuit means
Multiplexed n signals from n signal monitoring circuits
A multiplexing circuit that generates a heavy signal and an alarm from a signal monitoring circuit
If the alarm signal is input and no control signal is
Signal, and when a control signal is input, an alarm signal
An alarm stop circuit for stopping the transmission, and
Input the alarm signal and the output of the multiplex circuit, and input the alarm signal
And a signal stop circuit for stopping the transmission of the multiplex signal when the signal is output .

[0005]

According to the present invention, the number of transmitting boards is one by external control.
If even a single card is implemented, the data is transmitted by the transmission processing capacity.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention.
In FIG. 1, reference numerals 1 ₁ ... 1 _{n denote n} transmission boards for transmitting signals in a frame format. 3 ₁・
· · 3 _n are n signals monitoring circuit for monitoring the n signal from the transmission panel 1 ₁ to 1 _n, 4 this signal monitoring circuits 3 ₁ to
Multiplexing circuit means for multiplexing n signals from 3 _n, which are accommodated in a multiplexing board 2. 5 is a signal monitoring circuit 3 ₁
This is a control panel that outputs a signal that disables the function of stopping alarms and signals from 3 to _n . These constitute transmission means capable of transmitting only the transmission processing capacity if at least one transmission board is mounted by external control.

FIG. 2 is a block diagram showing a configuration example of the signal monitoring circuit and the multiplex circuit means of the multiplex board 2 in FIG. In FIG. 2, reference numeral 30 denotes n signal monitoring circuits to which a transmission signal b and a signal monitoring signal c are input, and 44 denotes n signal monitoring circuits.
A multiplexing circuit for multiplexing n signals from the circuit 30 ; 46, an alarm stop circuit which receives a control signal a from the control panel 5 and an output of the signal monitoring circuit 30;
And the multiplexing circuit 44 from the alarm signal e through the gate circuit 48
Is a signal stop circuit which receives the output of the signal stop. d indicates a multiplex signal from the signal stop circuit 47.

Next, the operation of the embodiment shown in FIGS. 1 and 2 will be described. First, at the start-up of the device, the transmitters ₁₁ to 1 _n
If the control panel 5 inputs from the outside whether or not the control panel 5 is mounted , the control panel 5 determines whether at least _one of the transmission panels ₁₁ to 1 _n is mounted.
Function to disable alarms and stop multiple signals.
The control signal a to be activated is sent to the multiplexing circuit means 4 accommodated in the multiplexing board 2 .

Next, the signal monitoring circuit 30 issues an alarm by comparing with the signal monitoring signal c whether or not a determined value has been transmitted using the overhead of the signal.
(That is, if the corresponding transmitter is not implemented,
Information) . Then, the alarm stop circuit 46 controls the signal monitoring.
An alarm is input from the visual circuit 30 and a control signal a is input.
If not, an alarm signal e is sent out, but the control signal a
Does not send out the alarm signal e. Stop signal
When the alarm signal e is output, the circuit 47
Stops the transmission of the multiplex signal d output from
Since the output of the alarm signal e is stopped by the control signal a,
The multiplex signal d is transmitted. At this time, the multiplexing circuit 44
Since only the signal of the mounted transmission board is input,
Only the signal is multiplexed to form a multiplexed signal d. In this way, police
Function to disable transmission of multiple signals
With this configuration, if at least one transmission board is mounted, a signal capacity that can be processed by the transmission board can be transmitted.

[0010]

As described above, according to the present invention, if at least one transmission board is mounted by external control, it is possible to transmit only the transmission processing capacity. In a device where signal transmission could not be carried out unless the transmission board was mounted, if one transmission board was mounted, there is an effect that only the signal capacity that the transmission board can process can be transmitted.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of a signal monitoring circuit and multiplex circuit means of the multiplex board in FIG. 1;

[Explanation of symbols]

1 ₁ to 1 _n transmission board 2 multiplex board 3 _{1 to} 3 _n signal monitoring circuit 4 multiplex circuit means 5 control board 30 n signal monitoring circuits 44 multiplex circuit 46 alarm stop circuit 47 signal stop circuit

Claims (2)

(57) [Claims] 1. A method for transmitting a signal in a frame format.
If all n (n: an arbitrary natural number) transmitters to be transmitted are not implemented , the signal from each transmitter is multiplexed.
In a device having a function of stopping a heavy signal, n signals for monitoring n signals from the n transmitters are provided.
No. monitoring circuit, an alarm from a signal monitoring circuit is input, and the control signal input
If not, stop sending the multiplex signal and issue an alarm signal.
And when a control signal is input, a multiplex signal is generated.
A multiplex circuit means for generating and stopping the transmission of the alarm signal, and outputting the control signal if at least one transmission board is mounted.
Control panel, and even one transmitter panel is installed.
For example, a partial mounting method of a transmission board characterized by being able to transmit only the transmission processing capacity . 2. A partial mounting method for a transmitter according to claim 1.
In this case, the multiplexing circuit means outputs n signals from n signal monitoring circuits.
And a multiplexing circuit that generates a multiplexed signal by multiplexing an alarm and a control signal are input from a signal monitoring circuit.
If not, an alarm signal is sent out and a control signal is input.
If an alarm signal is output, an alarm stop circuit that stops sending the alarm signal, and an alarm signal from this alarm stop circuit and the output of the multiplex circuit are input.
Multiplex signal transmission when an alarm signal is input.
A partial mounting method of a transmission board, comprising a signal stop circuit for stopping .