JPS6243300A - Channel line concentrator - Google Patents

Abstract

PURPOSE:To use effectively time division multiplex highways by allowing time division multiplex up highways and time division multiplex down highways to exist together on time division multiplex junctor highways. CONSTITUTION:Time division multiplex up highways 16 and 17 and a time division multiplex down highway 21 of outputs of the first channel memories 1, 3, and 6 are stored in a select switch 35. Information which is used to select one of highways of outputs of the first channel memories 1, 3, and 6 is written in a select switch control memory 13, and this information is outputted from a control line 28 to select one of highways of outputs of the first channel memories by the select switch 35. Outputs of the second channel memories 2 and 4 are time division multiplex down highways 19 and 20, and the output of the second channel memory 5 is a time division multiplex up highway 18.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call path concentrator in a time division switch.

[Conventional technology]

As shown in FIG. 2, the conventional communication path memory U includes upper 9 highways 43, 44, 45, 46 (arrows pointing to the right in the figure).
Random write (RW)'J? and a channel memory 31 .operating in sequential readout (SR) mode.
32 and lower 9 /S iway 49゜50.51.52 (
Sequential writing (SW) of the left arrow in the figure)
and a communication path memory 33, 34, which operates in the random read (RR) mode, a space switch 59, a serial/parallel conversion circuit 36, 37, and a communication path control memory 38, 39.4.
0.41 and a space switch control memory 42. In the communication path concentrator configured in this way,
Each channel number (LEN) of the time division multiplexed uplink highway 43, 44 on the input side of the call route memo IJ 31, 32
The contents of are input from the control lines 54 and 55. Based on the contents of the communication path control memo I738 and 39, the communication path memo IJ3 is
Randomly write to 1 and 32. Call path memory 3
1.32 output side time division multiplexed up highway 45.4
6 are sequentially read out based on the contents of the communication path control memories 38 and 39. Call route memo IJ 31,
The time division multiplexed uplink highways 45 and 46 of the outputs of 32 are accommodated in the space switch 59. The space switch control memory 42 stores information for selecting one of the time-division multiplexed uplink highways 45 and 46 output from the communication route memos IJ 31 and 32, and the information is transmitted from the control line 58. The spatial switch 59 selects one of the time-division multiplexed uplink highways 45 and 46. The time division factor l of the output from the space switch 59 is τ0
The parallel music is stored in the parallel conversion circuit 36, and the parallel music is converted into series.
Output: iway 48. On the other hand, the input signal 53 is accommodated in a serial/parallel conversion circuit 37, where it undergoes serial/parallel conversion and is output. The time division multiplexed down highways 51, 52 outputted from the serial/parallel converter circuit 37 are stored in the communication path memos IJ 33, 34, respectively.

The contents of each channel number (NEN) of the time division multiplexed down highway 51, 52 on the input side of the communication path memory 33, 34 are sequentially written into the communication path memo I 733, 34. The communication path control memo 'J40, 41 contains the contents of which channel number (NEN) in which channel number (LEN) of the time division multiplexed down highway 49.50 on the output side of the communication path memo IJ 33, 34'. The information about whether to read it is included, and this information is controlled by the control glands 56, 57.
The contents of the channel number (NEN) are randomly read out from the L1 communication route memo IJ 33, 34 to the channel number (LEN).

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional communication path concentrator of the time-division switch, since time-division multiplexing ways are provided independently for both the upper and lower highways, for example, all the channels of the time-division side strip 1 up highway are is in use and there is an empty channel on the time division multiplexed down highway, the lower highway cannot be used as an up highway. Therefore, effective use of the time division multiplex highway cannot be achieved.

[Means for solving problems]

The communication path concentrators of the present invention are operable to perform sequential writes and random reads, respectively, and at least one connects to at least one time-division multiplexed network and at least one other connects to at least one time-division multiplexed network. A plurality of first communication path memories connected to the electric shoes/eway, and these 121st! ! Information on one of the 99 up and down highways connected to NYC's up and down highways in a time-sharing unit time sequence connected to the story memory? a select switch that selects and outputs the east line to at least one time-division multiplex junk mail highway; and a select switch that is connected to the junk highway to receive output information of the select switch, and operates to perform sequential writing and random reading of the output information. The present invention is characterized in that it includes a plurality of second communication path memories.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1, the time division multiplexed upper highway 14.15 input to the first communication path memories 1 and 3 and the time division multiplexed downward highway 22 inputted to the first communication path memory 6 are different from each other for each call. sequentially written to the path memory. The contents of these first channel memories 1, 3, and 6 are randomly read out by means of the control memories 24, 26, and 30. The time division multiplexed upper highway 16.17 and the time division multiplexed downstream highway 21 of the outputs of the first channel memories 1, 3.6 are accommodated in a select switch 35.

Information for selecting one of the highways output from the first channel memory 1.3.6 is written in the select switch control memory 13, and this information is output from the control line 28. Accordingly, the select switch 35 selects one of the output highways of the first communication path memory. The highway selected by the select switch 35 becomes the time-division multiplexed junctor highway 23 and is sequentially written into the output signal 1 and the second channel memory 2, 4.5. The contents of the second channel memory 2.4.5 are randomly read and extracted by the channel control memos +78, 10, and 11. The output of the second channel memory 2.4 becomes the time division multiplexed down highway 19°20, and!
2. The output of the communication path memory 5 is the time division multiplexed uplink highway 1.
It becomes 8. In addition, in FIG. 1, reference numbers 24.25
, 26, 29, and 30 indicate control wires. Further, each time division multiplex highway transmits multiple bits of information in parallel.

〔Effect of the invention〕

As explained above, according to the present invention, by mixing the time-division multiplexed uplink highway and the time-division multiplexed downlink highway on the time-division multiplexed highway, the time-division multiplexed uplink highway and the time-division multiplexed downway are mixed. Since the ratio of the multiplexed highway and the multiplexed highway can be made variable, it is possible to make effective use of the time division multiplexed highway.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a call path concentrator of a conventional time division switch. 1.3.6...First communication path memory, 2,415
...Second communication path memory, 7 to 13...
Control memory, 14-23... Time division multiplex highway, 24-30... Control line, 35...
・Select switch. 1N-no1 Foil 1 Figure Scene 2

Claims (1)

Claims: a plurality of devices, each operable for sequential writes and random reads, at least one connected to at least one time division multiplexed up highway and at least one other connected to at least one time division multiplexed down highway; and the up and down highways connected to these first communication path memories, and select information on one of the up and down highways for each unit time of time division. a select switch for concentrating output to at least one time-division multiplexed junctor highway; and a plurality of select switches connected to the junctor highway to receive output information from the select switch and operating to perform sequential writing and random reading of the output information. A communication path concentrator comprising: a second communication path memory;