JPH0186742U - - Google Patents
Info
- Publication number
- JPH0186742U JPH0186742U JP1987181013U JP18101387U JPH0186742U JP H0186742 U JPH0186742 U JP H0186742U JP 1987181013 U JP1987181013 U JP 1987181013U JP 18101387 U JP18101387 U JP 18101387U JP H0186742 U JPH0186742 U JP H0186742U
- Authority
- JP
- Japan
- Prior art keywords
- crt
- modem
- digital loopback
- section
- signal detection
- 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 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Description
第１図はオンラインデジタルループバツク機能
付きＣＲＴの一実施例のブロツク図、第２図は第
１図に示すＣＲＴを用いた実施例のシステム構成
図、第３図はＣＲＴ側から見たデータ送受信時の
タイムチヤート、第４図はオンラインデジタルル
ープバツク機能を用いて試験を行なつたときのＣ
ＲＴ側から見たテストデータ送受信時のタイムチ
ヤートである。
１：デジタルループバツク切替信号検出部、２
：切替制御部、３：ＣＲＴ制御部、４：モデム、
５：オンラインデジタルループバツク機能付きＣ
ＲＴ、６：計算機。
Fig. 1 is a block diagram of an embodiment of a CRT with an online digital loopback function, Fig. 2 is a system configuration diagram of an embodiment using the CRT shown in Fig. 1, and Fig. 3 is a data transmission/reception as seen from the CRT side. Figure 4 is a time chart of C when testing was performed using the online digital loopback function.
This is a time chart when transmitting and receiving test data as seen from the RT side. 1: Digital loopback switching signal detection section, 2
: switching control section, 3: CRT control section, 4: modem,
5: C with online digital loopback function
RT, 6: Calculator.
Claims (1)
デムとの接続部に、デジタルループバツク切替信
号検出部と、切替制御部を設けたことを特徴とす
るオンラインデジタルループバツク機能付きＣＲ
Ｔ。 A CR with an online digital loopback function, which is characterized in that, in a CRT using a modem, a digital loopback switching signal detection section and a switching control section are provided at the connection section between the CRT and the modem.
T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181013U JPH0186742U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181013U JPH0186742U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186742U true JPH0186742U (en) | 1989-06-08 |
Family
ID=31472512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181013U Pending JPH0186742U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186742U (en) |
-
1987
- 1987-11-30 JP JP1987181013U patent/JPH0186742U/ja active Pending
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