JPS6367095A - Power source separating system in trunk control - Google Patents

Abstract

PURPOSE:To electrically separate a device having an E-system earth power source and a device having a G-system earth power source, by separating them electrically by an optical coupling element, in connection between an information transmitter/receiver, and a trunk controller. CONSTITUTION:The information transmitter/receiver SRD1 is equipped with the E-system earth power source, and sends out a control signal from a central control unit to the trunk controller TRKC6 having the G-system earth power source, and also, receives scan information from the TRKC6, and sends it out to the central control unit. Signal distribution device column information, and trunk scanning device column information in a signal between the SRD1 and the TRDC6, are merged and separated by selectors 11, 12, and 14, and a latch circuit 15, and also, are separated and coupled electrically by the optical coupling element device 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply separation method for controlling trunk circuits for electronic exchanges, and in particular to a signal distribution device (hereinafter referred to as rsDJ).
The present invention relates to a power supply separation method for trunk operation pattern control by a trunk scanning device (hereinafter referred to as "rTSCN") and trunk operation change detection by a trunk scanning device (rTSCN).

[Conventional technology]

FIG. 6 shows a conventional control system for controlling this type of SD and TSCN. In FIG. 6, an information transmitting/receiving device (hereinafter referred to as rsRDJ) 1 is connected to a communication line processing device bus (hereinafter referred to as ``SP bus'') 2, and an SD
3 and TSCN4 are each connected to SRDI, and SD3 and TSCN4 are connected to each trunk package (hereinafter referred to as rTRKPJ) PO to Pn via a trunk mounted unit (hereinafter referred to as "TRKMUJ") 5.

Information coming via SP Babas is 5RDI, SD3. T
RKMU5. Sent to TRKP.

The scanning information generated by TRKP is TRKP, TRKMU5
．． It is sent to the sp bus via TSCN4 and TSCN5RDI.

Conventionally, this type of trunk circuit has been constituted by a relay circuit, and the interface between the SD3 and TSCN4 and the communication path of the trunk has been performed by relay contacts.

Conventionally, in this type of control system, in order to protect against lightning, the ground of the power supply that supplies power to the communication line system and the ground of the power supply that supplies power to devices in the control system such as SP Babasu and 5RD1 are connected. It is a separate system. The former is called the G-system ground power supply, and the latter is called the E-system ground power supply.

In the conventional control system shown in Fig. 6, as mentioned above, the interface between the communication path and the SD and TSCN is a relay contact, so the separation of the G system ground and the E system ground is all done within the TRKP. I was worried. An example of this is shown in FIG.

In FIG. 7, KA is a front monitoring relay, which operates at 48V from the G optical power source. Ka is a contact point of relay KA, which sends loop on/off information to TSCN. K
S is a relay having a contact Ks for extending the connection to the rear, and is driven by SD to operate. The power supply is operated by an E-system power supply. In this way, the G optical power source and the E optical power source are completely separated by the relay contacts.

[Problem that the invention seeks to solve]

Recently, attempts have been made to make trunk circuits that use conventional relays all electronic by using electronic components. In this case, as mentioned above, the power supplied to the communication line requires the G system ground, and the control system uses the E system ground, so the two power systems must be electrically separated. There is a need. That is, it is a problem of G/E separation. If we were to separate G/E using the same idea as before, we would have to place a photocoupler etc. in each TRKP to electrically separate them.
As shown in the example of FIG. 7, it is necessary to electrically separate each SD and TSCN point, and the number of separation points is large, which is impractical.

[Means for solving problems]

In order to solve these problems, the present invention multiplexes the signal distribution device data, multiplexes the trunk scanning device data, and merges the column information of the signal distribution device and the column information of the trunk scanning device. Both use the same signal lead, code the strobe signal of the signal distribution device and the strobe signal of the trunk scanning device, electrically separate the data, information, and strobe signal by an optical coupling element, and connect the separated G-system ground. Expands the multiplexed data, merged information, and coded signals in the equipment system, latches the signal distribution device point information for the operation of the signal distribution device, and latches the signal distribution device point information for the operation of the trunk scanning device. is configured to send out trunk scanning device information.

[Effect]

In the present invention, a device having an E-system ground power source and a device having a G-system ground power source are electrically separated by the minimum optical coupling element, and only information is coupled.

〔Example〕

An embodiment of the power supply separation system in trunk control according to the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows the sp Babas, 5R, applied to this embodiment.
This is a control system showing the connection of DI, TRKMU5, T RK P P ONP n, and trunk control device (hereinafter referred to as rTRKcJ) 6.

Figure 2 shows the 5RDI and TRKC6 applied to this embodiment.
FIG.

In Fig. 2, 11.14 is a 4-bit 2-1 selector (hereinafter referred to as r2-ISELJ), 12 is a 2-bit 2-1 selector (hereinafter referred to as r2-ISEL), 13
15 is a 32-bit register circuit, 16 is an AND gate for inputting information to the register 15, and 17 is an optical coupling element. In addition, 2-
The circuits in 5RDl including 15ELII to AND gate 16 operate on the E system power supply. The +V power supply supplied to the optical coupling element 17 indicates the E-system ground power supply, and the +VG power supply indicates the G-system ground power supply.

FIG. 3 is a circuit diagram showing TRKC6 in detail.
0 is a 4-16 decoder (hereinafter referred to as r4-16DECJ), and 61.62 is a 2-4 decoder (hereinafter referred to as r2-4DEC).
J), 63 is the 2-1 selector (r2-ISE
64 is a two-phase SD signal latch strobe (hereinafter referred to as "SD-5TBJ)" signal generation circuit, 65 is a bidirectional bus driver, 66 is a receiver;
67 is an OR circuit. TRKC6 operates using the G-system ground power source.

As mentioned above, the E system ground power supply and T
RKC6, TRKMU5. This means that a control system having two power sources, including the G-system ground power source for TRKP, is separated by 20 optical coupling elements 17.

Next, it will be explained that the operations of SD and TSCN are completely performed by this control system.

5RDI and TRKC6 from the top to the bottom of Figure 2
Each signal between is explained in detail.

The circuit shown in FIG. 2 uses TRKC column specification information (rTR
SD/TSCN/ROW information 0 to 3, which is a combination of 4 bits (referred to as "KC-ROW designation information") and 4 bits of SD column designation information @ (hereinafter referred to as "rsD-ROW designation information"),
SD-ROW is a combination of the lower 2 bits of 5D-ROW and 2 bits encoded with TSCN timing 4-phase information.
/TSCN・TIM information 0.1 and SD axis operation TSCN
5D-TSCN information for operation instruction, SD bit information @4 bits, and TSC of 2 systems (n system, n+1 system)
It has 4 bits of N bit information.

Next, the SD axis operation and TSCN operation are shown in Figures 2 to 5.
This will be explained using figures.

First, the SD axis operation will be explained. From SP Babasu (7)
The SD information is stored in the SD-ROW
It is assumed that the information has been converted into designation information, SD bit information, an SD bit upper/lower switching signal, and an SD operation instruction signal (see FIG. 2, but a description of the conversion process will be omitted). 5
The upper 4 bits of D-ROW specification information are 2-ISE
L 11. , is sent to the TRKC6 through the optical coupling element 17, and the lower two bits of the 5D-ROW designation information are the 2-IS
EL1'2. Through the optical coupling element 17 to TRKC6, S
The D operation instruction passes through the optical coupling element 17 to the TRKC6, and the S
The lower 4 bits and upper 4 bits of the D bit information are 2-I.
Multiplexed by SRL 14 and transmitted through optical coupling element 17 to TR
Sent to KC6.

Jl of TRKC6 shown in FIG. 3 is a jumper for selecting 5D-ROW designation information, and 4-16DEC60
Output 0 to 3 bits are input terminal SD of 2-ISEL63
It is assumed that they are connected to O to O3, respectively. 5RD1
All of the SD/ROW specification information N2 to 5 bits from r
For LJ level, 4-16 DEC60, jumper J
l, 5D-TSCN-3EL through 2-ISEL63
-8D-ROWn signal A signal is output to the board 5W1. 5W2 to 5W4 are also leads. If all 0.1 bits of the SD/ROW designation information are at the "L" level, an RO multiplied signal to the TRKMU5 is outputted to the lead 5W5. 5W6 to 5W8 are also leads.

The strobe signals SD-STB A signal and 5D-3TB B signal for latching the upper and lower bits of the SD bit information are independently generated by the SD-STB signal generation circuit 64, but this is not necessary to start the SD axis operation. It is created by a signal and is the lower rank in 5RD1.

It is synchronized with the upper level switching.

The above signals are input to TRKP5 shown in FIG.
-TSCN-ROW-3EL's RO times signal n+0 signal (
When the A signal (active rLJ level) of the SD/STB becomes valid, each inverter 51. A signal is input to the CP input lead of a D-type flip-flop (hereinafter referred to as rDFJ) 55 via AND circuits 52a to 52e. This is the lower 4 of the SD bit information.
This information is synchronized with the TRKPPO DF.
It is accumulated in 55. Similarly, data is accumulated in the DF55 of TRKPPI at the timing of the n signal of SD-STB. In this way, the SD pattern is stored in the TRKP, and the TRKP uses this DF information to appropriately change the state of trunk circuits such as speech paths.

Next, the TSCN operation will be similarly explained using FIGS. 2 to 5. As shown in Figure 2, the TSCN information from SP Babasu passes through 2-ISELll and the optical coupling element 17, and is sent to the TR as SD/TSCN-ROW designation information O~3.
The TSCN timing information is output to KC6 and the TSCN timing information is output to KC6.
-TIM13.2-ISEL12, passes through the optical coupling element 17, and is output to the TRKC6 as TSCN-TIM information 0,1. Further, a TSCN operation instruction signal is output to TRKC6.

In Figure 3, jumper J2 allows 4-16DEC.
It is assumed that the 0.1 bit of the 60 output and the input terminal SN0.1 of the 2--ISEL63 are jumpered. T
If all SCN-ROW specification information is rLJ level, 4-16DEC60, jumper J2.2-ISEL6
T S CN RO of 5D-TSON-3EL after 3
A signal is output to the Wn signal board 5W1. TSC
TSCN-TIM information as a signal with N timing is 2
-4DEC62 develops it into four phases and converts it into A and n signals of TSCN-3TB. This is the TRK shown in Figure 5.
When output to PPO, PL, 5D-TSCN-ROW
-3EL n+Q signal lead and TSCN-3TB A
Depending on the conditions with the signal, the AND circuit 5 inside TRKPPO
A signal is output to the output of 2b, and the bidirectional bus driver 53
is driven, and the 4 bits of TSCN information of TRKPPO are set to T.
It is output to RKC6.

Next, when the n signal of TSCN-STB is output, TR
A signal is output to the output of the AND circuit 52b of KPPI,
4 bits of TSCN information of TRKPPI is output to TRKC6. Next, referring to FIG. 4, TRKMU (
n) TRKPaP2 TSCN information is TSCN-3T
It is understood that the TSCN information of TRKPaP3 is outputted to TRKC6 by the C signal of B and the n signal of TSCN/STB, respectively, by the 4-bit bidirectional bus. Furthermore, in FIG. 4, TRKMU (n+
1) The same signal as the signal output to TRKMU (n) is also output to 5b, and TRKMU (n+1) 5b
TSCNJm@ of TRKPbPO~bP3 within is TRK
T through a 4-pin bidirectional bus that is separate from MU(n).
It is sent to RKC6.

Note that 54 is a bidirectional path receiver.

In 5RD1 shown in Fig. 2, these two systems, TRK
The 4-bit information of the MU (n) system and the TRKMU (n+1) system will be sent to the SP bus. That is, by the AND gate 16 and the register circuit 15, TR
For KMU(n,) lineage, TSCNSCN pit~
For the TRKMU (n+1) system, it is converted into TSCN bit information 16-31, and the total is converted into 0-31 bit information and sent to the SP bus.

〔Effect of the invention〕

As explained above, the present invention merges signal distribution device column information and trunk scanning device column information, electrically separates them with an optical coupling element, multiplexes signal distribution device data, and combines this with an optical coupling device. By electrically separating, multiplexing trunk scanning device data, electrically separating with an optical coupling element, and placing the signal distribution device information storage function on the trunk side,
A device having an E-system ground power source and a device having a G-system ground power source can be electrically separated by the smallest optical coupling element, and there is an effect that only information can be coupled.

[Brief explanation of drawings]

Fig. 1 is a system diagram showing a control system for explaining the power supply separation method in trunk control according to the present invention;
The figure shows an information transmitting/receiving device (SRD) that constitutes the control system.
) and the trunk control device (TRKC), Figure 3 is a circuit diagram showing the connection between the trunk connection device (TRKC), the trunk mounted unit (TRKMU), and the information transmitting/receiving device (S R
D), Figure 4 is a circuit diagram showing the detailed circuit of the trunk mounted unit (TRKMU), Figure 5 is a circuit diagram showing the detailed circuit of the trunk package, and Figure 6 is the conventional control system. FIG. 7 is a circuit diagram showing a method of separating the E system ground and the G system ground. 1...SRD, 2...SP Babasu 5゜5a, 5
b・-TRKMU, 6-TR KC, 11, 12, 14, 63...2-ISEL,
13... TSCN・TIM, 15... register circuit, 16... AND gate, 17... optical coupling element, aPO to aP3. bPO~bP3...Trunk package, 51...Inverter, 52a~52
e...AND circuit, 53.65...bidirectional path driver, 54...bidirectional path receiver, 60...
...4-16DEC, 61,62...2-4DEC
164...SD-STB signal generation circuit, 66...
・Pass receiver, 67...OR circuit. Figure 1 To I11 To MU Cutting: To JRKMLJ : Figure 6 Figure 7

Claims (1)

[Claims] In a power separation system that separates the power supply into an E-system ground power supply and a G-system ground power supply in controlling a trunk having a pattern control point from a signal distribution device or a scanning point to a trunk scanning device, the signal distribution device data and trunk Multiplexing the scanning device data, merging the column information of the signal distribution device and the column information of the trunk scanning device, using the same signal lead for both information, and combining the strobe signal of the signal distribution device and the trunk scanning device column information. The strobe signal is encoded, the data, the information, and the strobe signal are electrically separated by an optical coupling element, and the multiplexed data and the combined information are encoded in a separated G system ground equipment system. Expand the signal and
A power supply separation system for trunk control characterized in that signal distribution device point information is latched for the operation of a signal distribution device, and trunk scanning device information is sent for operation of a trunk scanning device.