JPH0923491A - Integrated switching system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain cost effectiveness by integrating time division processing in an integrated switching system integrating and housing analog subscribers and digital subscribers. SOLUTION: The integrated switching system houses the analog subscribers 1 and the digital subscribers 2 individually or by coexisting in a remote terminal equipment 10, multiplexes and transmits voice information B, control information SG and data information D and integrates and processes them in a half-fixed path connecting device 5 to distribute to an exchange 3 for A and an exchange 4 for I. The integrated switching system is provided with a first time division speech path equipment 7 separating and adding voice information by means of a subscriber's side equipment 6, a second time division speech path equipment 8 separating and adding control information SG which is 3-multi-frame- constituted and data information D of the digital subscribers 2, and an equipment on an exchange side 9 transferring voice information B and control information SG of the analog subscribers 1 to the exchange 3 for A and voice information B, control information SG and data information D of the digital subscribers 2 to the exchanger 4 for I.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated switching system in which analog subscribers and digital subscribers are integrated and accommodated in corresponding analog subscriber exchanges and digital subscriber exchanges, respectively. A typical analog subscriber is accommodated in an analog subscriber exchange, and I
Digital subscribers of SDN subscribers are accommodated in the exchanges for digital subscribers, and it is being promoted to convert the subscriber lines into optical fibers. In that case, an optical signal transmitted as a multiplexed optical signal is transmitted between a region where analog subscribers and digital subscribers are mixed and a switching center in which an analog subscriber exchange and a digital subscriber exchange are installed. It has been proposed to connect by a fiber transmission line. At the exchange side, the multiplexed optical signal is converted into an electric signal, and the voice information and control information of the analog subscribers are added to the exchange for analog subscribers, and the voice information, control information and data information of the digital subscribers are digitally added. Distributed to individual exchanges,
The analog subscribers are directly accommodated in the analog subscriber exchanges, and the digital subscribers are accommodated in the digital subscriber exchanges. It is desired to economically realize such a configuration.

[0002]

2. Description of the Related Art FIG. 6 is an explanatory view of an integrated switching system of a conventional example, and although this configuration has been proposed previously, it will be described below as a conventional example. In the figure, 5
1 is an analog subscriber, 52 is a digital subscriber, 53 is an analog subscriber exchange (AEX) (hereinafter abbreviated as A exchange), and 54 is a digital subscriber exchange (IE).
X) (hereinafter abbreviated as I switch), 55 is a semi-fixed path connection device (LXM) (line cross-connect module), 56 is a subscriber side device (SLSE), 57, 58.
Is a time division speech path unit (TDNW), 59 is an exchange side device (EXSE), 60 is a remote terminal device (RT), B is voice information, D is data information, and SG is control information.

A single or a plurality of analog subscribers 51 and a single or a plurality of digital subscribers 52 are connected to the remote terminal device 6.
0 and semi-fixed path connection device 55 through A switch 53
Alternatively, the remote terminal device 60 has a function of electro-optical conversion and photoelectric conversion, and a function of multiplexing and demultiplexing, and is also connected to the I exchange 54, and DA conversion and AD for the analog subscriber 51. It has the function of conversion,
The remote terminal device 60 and the semi-fixed path connection device 55 are connected by an optical fiber transmission line that transmits a multiplexed optical signal.

The semi-fixed path connection device 55 has a subscriber side device 56, time division communication channel devices 57 and 58, and an exchange side device 59. The time division communication channel devices 57 and 58 are used for analog subscription. A path connecting the person 51 and the A exchange 53 or another A exchange not shown,
In addition, a path is formed between the digital subscriber 52 and the I switch 54 or another I switch (not shown), and the analog at the remote place is not changed without changing the analog subscriber number and the digital subscriber number. The subscriber and the digital subscriber can be accommodated in the A exchange 53 and the I exchange 54 via the semi-fixed path connection device 55, respectively.

From the analog subscriber 51 to the A exchange 53
Voice information B and control information SG such as call information, and the digital subscriber 52 sends the voice information B, control information SG such as call information and data information D to the I switch 54. In the semi-fixed path connection device 55, the subscriber side device 56 separates the voice information B from the analog subscriber 51 and the voice information B and the data information D from the digital subscriber 52. Then, the time-sharing speech path device 57
In addition, the control information SG of the analog subscriber 51 and the control information SG of the digital subscriber 52 are separated and added to the time division speech path device 58. Therefore, the time division speech path device 57
Performs time division processing on the voice information B and the data information D, as indicated by (B + D).
8 indicates that the control information SG is time-divisionally processed, as indicated by (SG).

The exchange side device 59 is an analog subscriber 51.
Of the digital subscriber 52, and the voice information B, the data information D, and the control information SG of the digital subscriber 52 are distributed to the I exchange 54. Therefore, for the analog subscriber 51 and the digital subscriber 52, the time division speech path device 5 of the semi-fixed path connection device 55 is provided.
Paths can be set by time-divisional processing in the integrated state of Nos. 7 and 58.

FIG. 7 is an explanatory view of a main part of a conventional subscriber-side device, which is the previously proposed subscriber-side device 56 in FIG.
, 61 is an optical fiber transmission line, 62 is a photoelectric conversion unit (O / E), 63 is a multi-frame conversion unit, 64 is a channel separation unit, and 65 is a D extraction / insertion unit. Again 60
Is a remote terminal device (RT), and 57 and 58 are time division speech line devices (TDNW). The remote terminal device 60 accommodates a plurality of analog subscribers and digital subscribers, multiplexes voice information B, control information SG, and data information D of each subscriber, for example, a multiplexed optical signal of 8 Mbps or 32 Mbps. Is transmitted by the optical fiber transmission line 61.

In the subscriber side device (SLSE) 56, the photoelectric conversion unit 62 converts the multiplexed optical signal into an electric signal, and the multi-frame conversion unit 63 processes the control information SG in a 2-multi-frame configuration. Convert to. Further, the channel separation unit 64 separates the voice information B and the data information D, the voice information B, the data information D, and the control information SG, and the D extraction / insertion unit 65 extracts the data information D and performs the time-division call. The voice information B and the data information D are added to the line device 57, and the control information SG is added to the time division speech line device 58.

FIG. 8 is an explanatory view of a frame format of a conventional example, and shows a format applied to the previously proposed structure of FIG. 6, where 71 is a frame composed of 128 time slots and 72 is composed of 32 time slots. An example of the super handling groups SHG0 to SHG2 is shown. Each group SHG0 to SHG2 has control information SG
Shows the case where 4 time slots are allocated to the data information D, 4 time slots to the data information D, and 16 time slots to the audio information B. Further, B1 and B2 indicate B channel time slots per line of a digital subscriber of ISDN 2B + D configuration. Therefore, one time slot of either B1 or B2 is used for one line of the analog subscriber. The voice information B of the analog subscriber can be inserted into 16 time slots 105 to 120 of the frame.

Reference numeral 73 denotes a time slot for inserting the data information D. Four bits D1, D2, D1 and D2 are inserted, and D is inserted in the D extraction / insertion unit 65 in FIG.
Bits 1, 1, D2, D1 and D2 are sequentially extracted and assigned to B1, B2, B1 and B2, respectively, as shown at 74 in FIG. . In this case, the bit ratio of the B channel and the D channel in one time slot is 8: 1, so 64
The D channel has a bit rate of 8 kbps, while the B channel has a bit rate of kbps. Control information S
G is separated in the channel separation unit 64 in FIG. 7, and is time-division speech path device 58 via the D extraction / insertion unit 65.
Is added to

FIG. 9 is a diagram for explaining the relationship between the conventional multi-frames, showing the relationship of the multi-frames applied to the previously proposed configuration shown in FIG. 6, and as shown in FIG. For audio information B per frame,
The control information SG has a two-frame structure as indicated by S1 and S2. Further, as shown in (I), the control information SG has a three-frame structure as indicated by S1, S2, and S3 for the voice information B shown by B1 and B2 per frame of the digital subscriber.

Therefore, as shown in (A / I), for the analog subscriber, the control information SG for the voice information B is processed as two multiframes as shown in S1 and S2, and the digital subscriber is processed. Is the voice information B
B1 and B2 of D1 of data information D
D2 is allocated and processed as two multi-frames as indicated by S1, S2 and S3 of the control information SG.

As described above, in the time division speech path unit 57, only B is processed for analog subscribers and B + D (= B1 + D1, B2 + D2) is treated for digital subscribers, and the time division speech communication unit 58 is processed. At this point, the control information SG is processed as 2 multiframes for analog subscribers and 3 multiframes for digital subscribers.

FIG. 10 is an explanatory view of a main part of a conventional time-division speech path device, and shows a main part of the previously proposed time-division speech path device 57 for performing the B + D processing shown in FIG. Further, it is considered that the time-division speech path device 58 for processing the control information SG also has the same configuration to achieve cost reduction by mass production of the same product type. In the figure, 81 is a primary time switch unit (PTSW), and 82 is a space switch unit (HS).
W) and 83 are secondary time switch units (STSW), which are T-
The case of a time division speech path device having an ST configuration is shown. Also 84,
Reference numerals 94, 86, 96, 88, 98 are elastic store memories (ES), 85, 95, 89, 99 are time division switch circuits (TSW), and 91, 92 are data information editing sections.

The voice information B of the analog subscriber and the digital subscriber is processed through the respective units of reference numerals 84 to 89,
Reference numeral 91 indicates the data information D of the digital subscriber,
Processing is performed via the respective units 92, 94 to 99. Further, the control information SG of the analog subscriber and the digital subscriber is processed by the configuration corresponding to each part of reference numerals 84 to 89. Therefore, analog subscribers and digital subscribers can be integrated and processed in the semi-fixed path connection device 55.

[0016]

Generally, cost reduction can be achieved by mass production of the same product type, as compared with high-mix low-volume production. Therefore, it is conceivable that the time division speech path devices 57 and 58 shown in FIG. However, in the time division communication device 58 which processes the control information SG, as compared with the time division communication device 57 which processes the voice information B and the data information D, FIG.
The configuration indicated by reference numerals 91, 92, 94 to 99 at 0 is not used. Therefore, the time division speech path device 57,
If the same configuration is used for 58, there is a problem that a relatively large number of configurations will be wasted. On the contrary, if the configuration that is wasted is omitted, the configurations of the time division speech path devices 57 and 58 will be different, resulting in an increase in cost during mass production. The problem arises. In addition, it is necessary to process the data information D by identifying the subscriber type, which is an analog subscriber or a digital subscriber. An object of the present invention is to unify the time division processing for analog subscribers and digital subscribers and to make the time division communication channel device economical.

[0017]

The integrated switching system of the present invention will be described with reference to FIG. 1. The voice information B and control information SG of the analog subscriber 1 and the voice information B and control information of the digital subscriber 2 will be described. Includes a time-division speech path device that multiplexes SG and data information D and sets a semi-fixed path between the analog subscriber 1 and the A exchange 3 and between the digital subscriber 2 and the I exchange 4. In the integrated switching system, a first time-division channel device 7 for time-division processing voice information B of the analog subscriber 1 and the digital subscriber 2, and control information of the analog subscriber 1 and the digital subscriber 2. The SG has a three-multiframe structure, and is provided with a second time-division channel device 8 for time-division processing the control information SG having the three-multiframe structure and the data information D of the digital subscriber 2. .

Further, the analog subscriber 1 has a time division speech path device connected between the subscriber side device 6 and the exchange side device 9.
Voice information and control information SG, voice information B of the digital subscriber 2, control information SG and data information D are multiplexed,
In the integrated switching system in which a semi-fixed path is formed between the analog subscriber 1 and the A exchange 3 and between the digital subscriber 2 and the I exchange 4 by the time-division speech path device, the subscriber side device 6 Separates the voice information B of the analog subscriber 1 and the digital subscriber 2 from the multiplexed signal, and sets the control information SG of the analog subscriber 1 and the digital subscriber 2 into 3 multiframes. It has a multi-frame converter and a channel separation unit for separating the control information SG of the configuration and the data information D of the digital subscriber 2, and the time division speech path device time division processes the voice information from the subscriber side device 6. First time division speech path device 7
And the control information SG and the data information D from the subscriber side device 6.
And a second time-division speech path device 8 for performing time-division processing of the above, and the exchange-side device 9 and the voice information B of the analog subscriber from the first and second time-division speech path devices 7 and 8. Control information S
It has a separating / sending unit 9a which separates G and sends it to the A exchange 3, and separates the voice information B, the control information SG and the data information D of the digital subscriber 2 and sends them to the I exchange 4. It is a thing.

[0019]

The voice information B, the control information SG, and the data information D of the analog subscriber 1 and the digital subscriber 2 are multiplexed at the remote terminal device 10 and sent to the semi-fixed path connection device 5, and the multiplexed signal. The voice information B of the analog subscriber 1 and the digital subscriber separated from the above is subjected to time division processing by the first time division communication channel device 7 and sent to a predetermined path. Further, the control information SG separated from the multiplexed signal has a three-multiframe structure, and is time-division-processed by the second time-division speech path unit 8 together with the data information D of the digital subscriber 2, and the path corresponding to the voice information B is obtained. Sent to.

The subscriber side device 6 of the semi-fixed path connection device 5
Separates the voice information B of the analog subscriber 1 and the digital subscriber 2 from the multiplexed signal, transfers the voice information B to the first time division channel device 7, and the analog signal 1 and the digital subscriber from the multiplexed signal. The control information SG of 2 and the control information SG are separated to form a 3 multi-frame structure, the data information D of the digital subscriber 2 is separated therefrom, and the control information SG and the data information D are transferred to the second time division communication channel device 8. Forward. Switch side device 9
Is based on the voice information B, the control information SG and the data information D from the first and second time division speech path devices 7 and 8 by the separate transmission unit 9a, and the voice information B and the control information SG of the analog subscriber. Are separated and transferred to the A exchange 3, and the voice information B, control information SG and data information D of the digital subscriber are separated and transferred to the I exchange 4.

[0021]

1 is an explanatory diagram of an embodiment of the present invention, in which 1 is an analog subscriber, 2 is a digital subscriber, 3 is an A exchange (AEX), 4 is an I exchange (IEX), and 5 is an Semi-fixed path connection device (LXM), 6 is a subscriber side device (SLS)
E), 7 and 8 are first and second time division speech path devices (TDN).
W), 9 are exchange-side devices (EXSE), 9a is a separate sending unit, and 10 is a remote terminal device (RT). The remote terminal device 10 accommodates only the analog subscriber 1 or only the digital subscriber 2 or the analog subscriber 1 and the digital subscriber 2 in a mixed manner, and the remote terminal device 10 and the semi-fixed path connection device 5 are accommodated. The two are connected by an optical fiber transmission line.

Therefore, the remote terminal device 10 has the voice information B and the control information S when only the analog subscriber 1 is accommodated.
When G is multiplexed and only the digital subscriber 2 or the analog subscriber 1 is accommodated together, the voice information B, the control information SG, and the data information D are multiplexed and converted into an optical signal for optical fiber transmission. It is equipped with a structure for sending to the road.

Further, the subscriber side device 6 converts the multiplexed optical signal into an electric signal, performs multiframe conversion so that the control information SG can be processed in a 3 multiframe structure, and outputs the control information SG and the data information D. The second time division speech path device 8
, And the voice information B of the analog subscriber 1 and the digital subscriber 2 is transferred to the first time division speech path device 7 as shown as B. The first and second time division speech path devices 7 and 8 have the same configuration.

Further, the exchange side device 9 has a separating / transmitting part 9a, and extracts the voice information B and the control information SG of the analog subscriber output through the time division speech path devices 7 and 8, respectively. To the I-switch 4 and to extract the voice information B, the control information SG, and the data information D of the digital subscriber respectively to the I-switch 4. Such separation / transmission processing can be easily realized by providing a means for identifying which of the voice information B of the analog subscriber and the digital subscriber.

FIG. 2 is an explanatory view of the main part of the subscriber side device of the embodiment of the present invention. 11 is an optical fiber transmission line, 12 is a photoelectric conversion part (O / E), 13 is multiframe conversion and channel separation. Units (MFD) and 14 are line selection and multiplexing units (HWMPX), and the same reference numerals as those in FIG. 1 denote the same parts.

As described above, the remote terminal device 10 accommodates analog subscribers and digital subscribers, multiplexes the voice information B, the control information SG, and the data information D into an optical signal for optical fiber transmission. It is sent to the semi-fixed path connection device 5 via the path 11. In this semi-fixed path connection device 5, the photoelectric conversion unit 12 converts the multiplexed optical signal into an electric signal, and the multiframe conversion and channel separation unit 13 separates the audio information B and the control information SG. Multi-frame conversion is performed so as to process in 3 multi-frames, and the data information D is output together with SG + D.

The line selecting and multiplexing unit 14 is, for example,
The voice information B, the control information SG, and the data information D from the other multi-frame converting and channel separating unit 13, which are not shown, are multiplexed. For example, the audio information B and the SG + D information having a bit rate of 16 Mbps from the multi-frame conversion / channel separation unit 13 are multiplexed to generate 3
It can be a bit rate of 2 Mbps. Then, the voice information B is sent to the first time division speech path device 7,
The control information SG and the data information D are distributed to the time-divisional communication channel device 8 of FIG.

FIG. 3 is a format explanatory view of the embodiment of the present invention. FIG. 3A is a multiplexing in which the voice information B, the control information SG and the data information D consisting of 128 time slots similar to the conventional example are multiplexed. A frame of a signal is shown, and a frame number can be inserted in the 0th time slot at the beginning of this frame. Also, 9th to 40th time slots and 4
It includes super-handling groups SHG0 to SHG2 in 32 time slots of 1 to 72 time slots and 73 to 104 time slots, and voice information B96 to B111 of analog subscribers in 105 to 120 time slots. . In addition, B of the super handling group SHG0 to SHG2 is
The conventional super handling group SHG0 of FIG.
~ Similar to SHG2, it is actually B of the digital subscriber.
There are two time slots 1 and B2, which are collectively represented by B.

Further, (b) shows the contents of one SHG0 of the super handling groups SHG0 to SGH2,
ST is a time slot for inserting the control information SG, D is a time slot for inserting the data information D, B is B1, B2.
Shows a time slot into which the audio information of is inserted. Therefore,
When accommodating only analog subscribers, super handling groups SHG0 to SHG2 and 105 to 120
No. time slot and can be accommodated. When accommodating only digital subscribers, it can be accommodated by using the super handling groups SHG0 to SHG2.

Further, (c1) to (c4) show the same processing contents for the time slots ST and D, respectively, and (d)
1) to (d3) show multiframe conversion of the control information SG, and (e1) to (e3) show processing of the data information D. That is, (d1) is 12 multiframes (12M
F) indicates a time slot ST over 3 multiframes, and channels ch0 and ch1 are set every 3 multiframes, and ST00 to ST12 as time slot numbers are "00P", by 1 bit of the time slot ST every 3 multiframes.
“01P”, “10P”, and “11P” (where P is a parity bit) are used as channels ch0 and ch, respectively.
1 can be identified. That is, channels ch0 and ch1
Shows the control information SG of 3 multi-frame structure.

Further, (d2) and (d3) show a case where the same channels ch0 and ch1 in 12 multiframes are arranged, and "1" and "0" on the right side are 1 bit of the above-mentioned time slot ST. It shows the order of the frames after conversion, and it looks like an 8-multiframe structure,
The second and the sixth are dummy, and show a state in which two pieces of control information SG of 3 multi-frame configuration are arranged in the vertical direction, and the leading "1" and "0" are arranged along the vertical time axis. ”
8 shows a case where the control information SG having an 8-bit structure including "" is arranged corresponding to a frame.

Further, (e1) shows the structure of the time slot D of the super-handling groups SHG0 to SHG2, which includes the effective 4 bits of D1 and D2.
2) and (e3) are 2-bit configuration D1 and D2, respectively.
Shows a time slot that summarizes the above. Further, as shown in (f), the control information SG shown in (d2) and (d3) is SG,
The data information D shown in (e2) and (e3) is arranged in D, respectively.

In the multi-frame conversion / channel separation unit 13 in FIG. 2, the control information SG in the frame (a) is multi-frame converted, and the data information D is converted into the data information D in FIG. 3 (f). It is constructed as shown in the format and sent out as shown as SG + D. As for the voice information B, B and B96 to B1 of each super handling group SHG0 to SHG2 of the frame (a).
It will be transmitted separately from the time slot indicated as 11.

FIG. 4 is an explanatory view of the main part of the time division speech path apparatus of the embodiment of the present invention, in which 21 is a primary time switch section (PT).
SW), 22 is a space switch unit (HSW), 23 is a secondary time switch unit (STSW), 24, 26 and 28 are elastic store memories (ES), and 25 and 29 are time division switch circuits (TSW). , T-S-T configuration. In addition, the first and second time division speech path devices 7, 8
Can apply various configurations other than the T-S-T configuration.

Regarding the first time division speech path device 7 for processing the voice information B, the structure for processing the data information D is not necessary, and therefore the structure is simpler than that of the conventional example shown in FIG. . As for the second time division communication channel device 8 which processes the control information SG and the data information D, it is shown in FIG. 4 because it processes the data information D and the control information SG having a 3-multiframe structure. It is possible to perform time-division processing with the same configuration as the configuration. That is, compared to the conventional example shown in FIG. 10, the configuration for processing the data information D is completely omitted, and the cost can be reduced.

FIG. 5 is an explanatory diagram of a highway format in the time division speech path device, showing a conventional example and the embodiment of the present invention in association with each other. Also, A is an analog subscriber,
I corresponds to a digital subscriber, and in the conventional example, since the control information SG is processed as a two-multiframe structure, the analog subscriber A has one time slot of voice as in the case shown in FIG. For the information B, the control information SG is processed in a two-multiframe configuration, and for the digital subscriber I, the voice information B1 and B2 and the data information D1 and D2 for two time slots are processed,
The control information SG is processed as a two-multiframe structure for S1 and S2, and the next S3 is processed as a two-multiframe structure including a dummy.

On the other hand, in the embodiment of the present invention, for the analog subscriber A, the control information SG is processed by the three multiframes including the dummy for the voice information B of one time slot, and the digital subscription. Person I 2
The control information S1, S2, S3 is processed in the three-multiframe configuration for the voice information B1, B2 for the time slot, and the data information D1, D2 is processed as one time slot. That is, in the second time division speech path device 8, SG + D processing is performed in a time series, and at that time, the control information SG is composed of three multi-frames (S1, S).
2, S3) and the data information D is processed as one time slot configuration. Therefore, the first and the first in FIG.
The second time division speech path devices 7 and 8 have the same configuration, and the analog subscriber and the digital subscriber are unified and processed without adding a useless configuration, and a semi-fixed path by time division processing. Can be formed.

[0038]

As described above, according to the present invention, a semi-fixed path is set between the analog subscriber 1 and the digital subscriber 2 at a remote place and the A switch 3 and the I switch 4. In the integrated switching system including the fixed path connection device 5, the control information SG is processed as a 3-multiframe structure, and the first time division speech path device 7 is
Voice information B between analog subscriber 1 and digital subscriber 2
The second time-division speech path device 8 time-division-processes the control information SG of the analog subscriber 1 and the digital subscriber 2 and the data information D of the digital subscriber 2 of the 3 multiframe structure. However, since the first and second time division speech path devices 7 and 8 have the same configuration and the wasteful configuration can be completely omitted, the analog subscriber 1 and the digital subscriber 2 are There is an advantage that the control can be unified and the time-sharing communication channel device can be made economical.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part of a subscriber-side device according to an embodiment of the present invention.

FIG. 3 is a format explanatory diagram of an example of the present invention.

FIG. 4 is an explanatory view of the main parts of the time division speech path device of the embodiment of the present invention.

FIG. 5 is an explanatory diagram of a highway format in the time division speech path device.

FIG. 6 is an explanatory diagram of a conventional integrated switching system.

FIG. 7 is an explanatory view of a main part of a conventional subscriber side device.

FIG. 8 is a diagram illustrating a frame format of a conventional example.

FIG. 9 is a diagram for explaining the relationship between conventional multiframes.

FIG. 10 is an explanatory view of a main part of a conventional time division speech path device.

[Explanation of symbols]

 1 Analog Subscriber 2 Digital Subscriber 3 Analog Subscriber Switch (AEX) 4 Digital Subscriber Switch (IEX) 5 Semi-fixed Path Connection Device (LXM) 6 Subscriber Side Device (SLSE) 7 First Time Division Call Line device (TDNW) 8 Second time division speech line device (TDNW) 9 Switch side device (EXSE) 10 Remote terminal device (RT)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000004237 5-7-1 Shiba, Minato-ku, Tokyo (71) Applicant 000005108 Hitachi, Ltd. 4-6-Kanda Surugadai, Chiyoda-ku, Tokyo (72) ) Inventor Yuji Tokunaga 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited (72) Inventor Junji Takayama 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (72) Inventor Horikoshi Hirobumi, 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Yuki Kato 1-1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Wada Hiroyuki 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (72) Inventor Satoshi Fujikawa 5-7 Shiba, Minato-ku, Tokyo No. 1 NEC shares in the company (72) inventor Yuzo Kawai Kanagawa Prefecture, Totsuka-ku, Yokohama-shi Totsuka-cho, 216 address Co., Ltd., Hitachi Information and Communications business unit

Claims (2)

[Claims] 1. The voice information and control information of an analog subscriber and the voice information, control information, and data information of a digital subscriber are multiplexed, and between the analog subscriber and a switch for analog subscribers and the digital subscriber. In an integrated switching system including a time-division speech path device that sets a semi-fixed path between a digital subscriber switch and a switch for digital subscribers, time-division processing is performed on voice information of the analog subscriber and the digital subscriber. The first time-division channel device and the control information of the analog subscriber and the digital subscriber each have three multi-frame configurations, and the control information of the three multi-frame configuration and the data information of the digital subscriber are time-shared. An integrated switching system comprising: a second time-division speech path device that performs division processing. 2. A voice signal and control information of an analog subscriber and a voice information, control information and data information of a digital subscriber, which has a time division speech path device connected between a subscriber side device and an exchange side device. And a time-division channel device to form a semi-fixed path between the analog subscriber and the analog subscriber exchange and between the digital subscriber and the digital subscriber exchange. In the subscriber side device, the voice information of the analog subscriber and the digital subscriber is separated from the multiplexed signal, and the control information of the analog subscriber and the digital subscriber is composed of 3 multiframes. And a multi-frame conversion and channel separation unit that separates the control information of the 3 multi-frame structure from the data information of the digital subscriber. The time-division speech path device time-divisionally processes a first time-division speech path device that time-divisionally processes voice information from the subscriber-side device, and control information and data information from the subscriber-side device. A second time division speech path device, wherein the exchange side device separates the voice information and the control information of the analog subscriber from the first and second time division speech path devices into the analog An integrated switching system comprising: a separation / transmission unit for transmitting to a subscriber exchange, separating voice information, control information, and data information of the digital subscriber and transmitting the separated voice information, control information, and data information to the digital subscriber exchange.