JPH04115797A - Ordering line device - Google Patents

Abstract

PURPOSE:To improve the operability by providing a ROM and a contact on/off means activating a pushbutton dial signal receiver and an ordering line on/off relay via a contact of a connection on/off relay with a receiver to a sender side of a key telephone set. CONSTITUTION:Numbers 1, 2, 3 of ordering lines are set to ROMs 11, 12, 13 by rotary switches 21, 22, 23. When a pushbutton 1 of a key telephone set 4 is depressed, a dial signal receiver 5 receives the signal and sends a signal 1 to the ROMs 11, 12, 13. The ROM 11 sets its output as an H level and sets an output of a NOT circuit 31 to an L level, to activate an ordering line on/off relay RL1, then contacts rl1-1, Rl1-2 are closed, the ordering line 1 is selected and a connection on/off relay RL4 with a receiver is closed and a contact Rl4 is opened.

Description

[Detailed Description of the Invention] [Summary] By turning on any of the meeting line on/off relays provided as many as the number of meeting lines, the contacts of the corresponding relays inserted in series in each meeting line are connected. , select a meeting line that connects the internal contact points of multiple meeting lines, call the station equipment connected to the selected meeting line with a push button dial signal,
Concerning a meeting line device that conducts a meeting with a central office device called by a telephone, a meeting line device with good operability is used to select a meeting line and call the central office device connected to the selected meeting line. For the purpose of providing, the telephone is a push-button telephone, and the transmission side of the telephone is provided with a push-button dialing signal receiver through an on-off relay contact connected to a receiver, and the push-button dialing signal receiver The desired meeting line number can be set to the output of the switch with the same number of meeting lines as the number of meeting lines, and when the set meeting line number is received from the push button dial signal receiver, the output is set to H level. , a ROM is provided that turns on the meeting line on/off relay connected to the output, and when any of the meeting line on/off relays is turned on, the on/off relay connected to the receiver is turned on and the contact is opened. The structure has a means.

[Industrial application field]

In the present invention, by turning on any of the meeting line on/off relays provided as many as the number of meeting lines, the contacts of the corresponding relays inserted in series in each meeting line are brought into contact, and a plurality of meeting lines are connected. A communication system that selects a meeting line that is connected to the inner contact point of , calls the office equipment connected to the selected meeting line with a push button dial signal, and holds a meeting with the called office equipment using a telephone. Concerning improvements to meeting line equipment.

[Conventional technology]

FIG. 3 is a block diagram of a conventional meeting line device.

Figure 3 shows a meeting line device with three meeting lines 1.2.3, and when the meeting line device is called from a station device connected to meeting line 1.2.3. The push-button dial signal is branched at branching sections 41, 42, and 43, passes through hybrid circuits 44 and 45, and is input to the push-button dial signal receiver 7.

The push-button dial signal receiver 7 converts the 4 signal corresponding to the received push-button dial signal indicating, for example, 4 into binary format.
It is sent to the decimal converter 52.

In the binary/IO base converter 52, the output side 4 is set to H level, but the output side of the binary/decimal converter 52 is set to the station number 4 of the own station using the station number setting switch 53. is turned on, the output of the NOT circuit 34 of the output of the binary/decimal converter 52 becomes L level, the relay RL5 is turned on, the contact r15 is connected, the light emitting element 40 emits light, and the oscillator 8 oscillates, and the signal at the oscillated frequency is sent to the amplifier 9.
It amplifies the call and outputs it from the speaker IO to notify that it has been called.

When calling, for example, a station device connected to meeting line 1 from meeting line equipment, first turn on the switch SWI mounted on the front panel of telephone board 61, turn on meeting line on/off relay RLI, and turn on contact r. With l 1-1 as a contact,
Select meeting line 1.

Then, the user presses the number of the desired station equipment using the push-chain dial 54 mounted on the front panel of the telephone board 61.

Then, a push-button dialing signal corresponding to the pressed number is sent from the multi-frequency signal transmitter 55 to the office equipment connected to the call line 1 via the attenuator 47, thereby making it possible to make a call.

For telephone calls, the outgoing call from the handset 51 is amplified by the amplifier 49, attenuated by the attenuator 47, and sent to the meeting line 1, and the received call from the meeting line l is sent to the branch unit 51 to 3.
1! The signal is attenuated by an attenuator 46, amplified by an amplifier 4, and sent to the handset 51.

[Problem to be solved by the invention]

However, when selecting a meeting line from meeting line devices and calling the station equipment connected to the selected meeting line,
There is a problem in that operability is poor because a switch mounted on the front panel of the telephone board 61 must be turned on and a push button dial 54 must be pressed.

An object of the present invention is to provide a meeting line device with good operability for selecting a meeting line and calling a station device connected to the selected meeting line.

[Means to solve the problem]

FIG. 1 is a block diagram of the principle of the present invention.

As shown in FIG. 1, meeting line on/off relays RL1, RL2 . By turning on any of RL3, the contacts of the corresponding relays inserted in series in each meeting line are connected, and the meeting line is connected to the inner contacts of multiple meeting lines 1, 2.3. , call the station equipment connected to the selected meeting line with a push button dial signal,
In a meeting line device that conducts a meeting with a station device called by the telephone 4, the telephone 4 is a push-button telephone, and the transmitting side of the telephone 4 is connected to the receiver via the contact r14 of the on/off relay RL4. A push-button dial signal receiver 5 is provided, and a desired meeting line number can be set to the output of the push-button dial signal receiver 5 using a switch, the same number as the number of meeting lines, and the push-button dial signal When the set meeting line number is received from the receiver 5, the ROMI sets the output to H level and turns on the meeting line on/off relay connected to the output.
1, 12.13, and the meeting line on/off relays RL1, RL2. On/off means 6 which turns on the on/off relay RL4 connected to the receiver and opens the contact r14 when any one of RL3 is turned on;
will be established.

[For production]

According to the present invention, when selecting a meeting line, if the number of the meeting line to be selected is set to 1, when the push button 1 of the push button telephone 4 is pressed, the push button dial signal receiver 5 changes to 1. Receive the corresponding pushbutton dialing signal and select ROMI1, 12 .
Send a signal of 1 to 13.

Switch 21, 22.23 for ROMI1, 12.13
Since the meeting line numbers 1, 2, and 3 are set in ROMII, the set 1 and the input 1 match, so the output is set to H level and the meeting line on/off relay RLI is set.
is turned on, and contact r11-1. With rj21-2 in contact,
The meeting line 1 is selected, the connection on/off relay RL4 connected to the receiver is turned on, the contact rf4 is opened, and no signal is input to the push button dial signal receiver 5.

Next, when the station number of the station equipment connected to the meeting line 1 is pressed using the push button of the push-button telephone 4, the push-button dialing signal of the pressed button is sent from the meeting line 1 to call the station equipment. .

That is, selection of a single meeting line and calling of a single station device can both be performed by pressing a push button on the push button telephone 4, which improves operability.

〔Example〕

FIG. 2 is a block diagram of a meeting line device according to an embodiment of the present invention.

The difference between the push-button dial signal receiving side from the other station in FIG. 2 and the conventional example shown in FIG. The station number is set using the rotary switch 24, and the relay RL5 is turned on when the station number of the own station is transmitted.The other points are the same, so the explanation will be omitted.

The selection of a meeting line and the calling of the station equipment will be explained below by taking as an example the case where meeting line 1 is selected as in the conventional example.

Rotary switch 21.2 for ROMI1, 12.13
In step 2.23, set meeting line numbers 1 and 23, respectively.

Then, when the 1 push button of the push button telephone 4 is pressed, the 1 push button dial signal is output.

Then, the push button dial signal receiver 5 receives this signal and sends a signal of 1 to the ROMI1, 12.13.

In ROMII, since the set value and the input signal 1 match, the output is set to H level, the output of the NOT circuit 31 is set to L level, the meeting line on/off relay RLI is turned on, and contact r1.1 is set. -1.

rI! , 1-2 are connected, meeting line 1 is selected, connection on/off relay RL4 with the receiver is turned on, and contact rf4 is connected.
is opened so that no signal comes to the push button dial signal receiver 5.

Next, when the push-button of the push-button telephone 4 corresponding to the station number of the office equipment connected to the meeting line 1 is pressed, a push-button dial signal corresponding to this push-button is sent to the hybrid circuit 50. amplifier 49
．． It is sent from the meeting line 1 via the attenuator 47 and calls the station equipment.

For calls, transmitting calls from the push-button telephone @4 requires amplifier 4.
9, and attenuated by an attenuator 47, the meeting line 1 is amplified.
The received call from the meeting line 1 passes through the branch 51, is attenuated by the attenuator 46, is amplified by the amplifier 48, and is sent to the push-button telephone 4.

In this way, selecting the meeting line and calling the station equipment can be done by pressing the push button on the push button telephone 4, improving operability.

〔Effect of the invention〕

As explained in detail above, according to the present invention, in order to select a meeting line and call the central office equipment, pressing the button i on the push-button telephone 4 is necessary.
Since it can be done by mouth operation, it has the effect of improving operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of a meeting line device according to an embodiment of the present invention, and FIG. 3 is a block diagram of a conventional meeting line device. In the figure, 1.2.3 is a meeting line, 4 is a push button telephone, telephone set, 5.7 is a push button dial signal receiver, 6 is an on/off means, 8 is an oscillator, 9, 48, 49 is an amplifier, 10 is the speaker, 11.12, 13.14 is the ROM. 21.22, 23.24 are switches, Rogue inch, 31 to 34 are knot circuits, 41 to 43 are branch parts, 44.45.50 are hybrid circuits, 46.47 is attenuators, 60.61 is telephone board , RLI to RL3 are meeting line on/off relays RL4 are connection on/off relays with the receiver RL5 are relays rll-1, rl2-1 . rl3-1. rll-2, r
l! 2-2. rl, 3-2. rl24. rl5 indicates a contact point.

Claims (1)

[Claims] A meeting line on/off relay (RL1) provided with the number of meeting lines.
, RL2, RL3,...), the contacts of the corresponding relays inserted in series in each meeting line are connected, and multiple meeting lines (1, 2, 3, . . . ) are turned on.・) Select the meeting line connected to the inner contact point of ), call the station equipment connected to the selected meeting line with a push button dial signal, and have a meeting with the called office equipment using the telephone (4). In a meeting line device that performs this, the telephone (4) is a push-button telephone, and the transmission side of the telephone (4) is connected to a push-button via a contact (rl4) of an on-off relay (RL4) connected to the receiver. A dial signal receiver (5) is provided, and the number of the desired meeting line can be set at the output of the push button dial signal receiver (5) with the same number as the number of meeting lines using a switch, and the push button When the set meeting line number is received from the dial signal receiver (5), the ROM (11, 12, 1) sets the output to H level and turns on the meeting line on/off relay connected to the output.
3,...), and the meeting line on/off relays (RL1, RL2, RL3
,...), which turns on an on-off relay (RL4) connected to the receiver and opens a contact (rl4). .