JPS6454446U - - Google Patents
Info
- Publication number
- JPS6454446U JPS6454446U JP14821987U JP14821987U JPS6454446U JP S6454446 U JPS6454446 U JP S6454446U JP 14821987 U JP14821987 U JP 14821987U JP 14821987 U JP14821987 U JP 14821987U JP S6454446 U JPS6454446 U JP S6454446U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- idle
- optical transmission
- transmission module
- circuit
- 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
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dc Digital Transmission (AREA)
- Small-Scale Networks (AREA)
Description
第１図は本考案のデイジタル信号伝送用回路の
実施例を示すブロツク図である。
１……光伝送モジユール、２，５……信号伝送
路、３，４……アイドル調整回路、３１……アイ
ドル検出部、３２……整合回路。
FIG. 1 is a block diagram showing an embodiment of the digital signal transmission circuit of the present invention. DESCRIPTION OF SYMBOLS 1... Optical transmission module, 2, 5... Signal transmission path, 3, 4... Idle adjustment circuit, 31... Idle detection section, 32... Matching circuit.
Claims (1)
あつて、前記デイジタル信号を光電変換して信号
の送受信を行なうＡＣリンク型の光伝送モジユー
ルと、その光伝送モジユールと連結される信号伝
送路と、前記光伝送モジユールと信号伝送路との
間に挿入されたアイドル調整回路とから成り、こ
のアイドル調整回路は、前記信号伝送路のアイド
ル状態を検出するアイドル検出部と、前記信号伝
送路と光伝送モジユールとの信号レベルを整合さ
せる整合回路とからなり、前記アイドル検出部が
前記光伝送モジユールのアイドル状態を検出した
とき、前記整合回路は、前記光伝送モジユールの
アイドル状態における信号レベルと前記信号伝送
路のアイドル状態における信号レベルとを認識し
、そのレベルが異なる場合、いずれか一方の信号
レベルを反転するよう動作することを特徴とする
デイジタル信号伝送用回路。 A circuit that performs burst transmission of digital signals, which includes an AC link type optical transmission module that performs photoelectric conversion of the digital signal and transmits and receives signals, a signal transmission path connected to the optical transmission module, and the optical transmission module. The idle adjustment circuit includes an idle adjustment circuit inserted between the module and the signal transmission path, and the idle adjustment circuit includes an idle detection section that detects the idle state of the signal transmission path, and a and a matching circuit for matching signal levels, and when the idle detection section detects the idle state of the optical transmission module, the matching circuit matches the signal level in the idle state of the optical transmission module and the idle state of the signal transmission path. 1. A digital signal transmission circuit that operates to recognize signal levels in different states and invert one of the signal levels if the levels are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14821987U JPS6454446U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14821987U JPS6454446U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6454446U true JPS6454446U (en) | 1989-04-04 |
Family
ID=31419337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14821987U Pending JPS6454446U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6454446U (en) |
-
1987
- 1987-09-30 JP JP14821987U patent/JPS6454446U/ja active Pending
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