JPS6440934U - - Google Patents
Info
- Publication number
- JPS6440934U JPS6440934U JP13499287U JP13499287U JPS6440934U JP S6440934 U JPS6440934 U JP S6440934U JP 13499287 U JP13499287 U JP 13499287U JP 13499287 U JP13499287 U JP 13499287U JP S6440934 U JPS6440934 U JP S6440934U
- Authority
- JP
- Japan
- Prior art keywords
- switching circuit
- frequency
- signal
- reception detection
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は本考案の実施例のブロツク図、第２図
は従来の帯域内信号装置による対向試験法のブロ
ツク図である。
１００，１００′……帯域内信号装置、１０１
，１０１′……１／ｘ分周回路、１０２，１０２
′……１／ｙ分周回路、１０３，１０３′……１
／ｚ分周回路、１０４，１０４′……送信切換回
路、１０５，１０５′……制御回路、１０６，１
０６′……受信検出切換回路、１０７，１０８…
…専用回線、２０１，２０１′……発振器、２０
２，２０２′……レベル測定器。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an opposing test method using a conventional in-band signal device. 100, 100'...In-band signal device, 101
, 101'...1/x frequency dividing circuit, 102, 102
'...1/y frequency divider circuit, 103, 103'...1
/z frequency dividing circuit, 104, 104'... Transmission switching circuit, 105, 105'... Control circuit, 106, 1
06'...Reception detection switching circuit, 107, 108...
... Dedicated line, 201, 201' ... Oscillator, 20
2,202'...Level measuring device.
Claims (1)
域内信号装置において、ある１つの信号を１／ｘ
，１／ｙ，１／ｚ周波数（ｘ，ｙ，ｚは正整数）
にそれぞれ分周する３つの分周回路と、それらの
分周回路を選択する送信切換回路と、１／ｘ，１
／ｙ，１／ｚ周波数信号を受信する受信検出切換
回路と、前記送信切換回路及び受信検出切換回路
を制御する制御回路とを備え、１／ｘ及び１／ｙ
周波数信号を前記帯域内信号装置を経由して対向
局へ送出し、対向局から１／ｚ周波数信号が返送
されたことを前記帯域内信号装置を経由して、前
記受信検出切換回路によつて検出するように構成
されたことを特徴とする帯域内信号装置。 In an in-band signaling device used as a terminal for a dedicated carrier communication line, one signal is 1/x
, 1/y, 1/z frequency (x, y, z are positive integers)
three frequency divider circuits, a transmission switching circuit that selects these frequency dividers, and 1/x, 1
/y, a reception detection switching circuit that receives the 1/z frequency signal, and a control circuit that controls the transmission switching circuit and the reception detection switching circuit,
Sending the frequency signal to the opposite station via the in-band signal device, and detecting that the 1/z frequency signal has been returned from the opposite station by the reception detection switching circuit via the in-band signal device. An in-band signaling device configured to detect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13499287U JPS6440934U (en) | 1987-09-03 | 1987-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13499287U JPS6440934U (en) | 1987-09-03 | 1987-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440934U true JPS6440934U (en) | 1989-03-10 |
Family
ID=31394235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13499287U Pending JPS6440934U (en) | 1987-09-03 | 1987-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440934U (en) |
-
1987
- 1987-09-03 JP JP13499287U patent/JPS6440934U/ja active Pending
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