JPH0351535U - - Google Patents
Info
- Publication number
- JPH0351535U JPH0351535U JP11311089U JP11311089U JPH0351535U JP H0351535 U JPH0351535 U JP H0351535U JP 11311089 U JP11311089 U JP 11311089U JP 11311089 U JP11311089 U JP 11311089U JP H0351535 U JPH0351535 U JP H0351535U
- Authority
- JP
- Japan
- Prior art keywords
- central processing
- processing unit
- communication buffer
- power supply
- unit
- 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
Landscapes
- Dc Digital Transmission (AREA)
Description
第１図はこの考案の一実施例による通信装置を
示すブロツク図、第２図はこの考案の他の実施例
による通信装置を示すブロツク図、第３図Ａ、第
３図Ｂはこの考案で使用されるノイズフイルタの
回路図、第４図は従来の通信装置を示すブロツク
図である。
１……ＣＰＵ、２，７……通信バツフア部、３
，８……ホトカプラ、４……電源回路、６，９…
…ノイズフイルタ。なお、図中、同一符号は同一
、又は相当部分を示す。
FIG. 1 is a block diagram showing a communication device according to an embodiment of this invention, FIG. 2 is a block diagram showing a communication device according to another embodiment of this invention, and FIGS. 3A and 3B are diagrams showing a communication device according to another embodiment of this invention. A circuit diagram of the noise filter used is shown in FIG. 4, which is a block diagram showing a conventional communication device. 1... CPU, 2, 7... Communication buffer section, 3
, 8... Photocoupler, 4... Power supply circuit, 6, 9...
...Noise filter. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
受を行う通信バツフア部と、上記中央演算装置と
上記通信バツフア部との間に接続されたホトカプ
ラと、上記中央演算装置と上記通信バツフア部と
に所定の電源電圧を供給する電源回路と、上記電
源回路と上記通信バツフア部との間に接続された
ノイズフイルタとを備えた通信装置。 A central processing unit, a communication buffer unit that sends and receives signals to and from the central processing unit, a photocoupler connected between the central processing unit and the communication buffer unit, and a photocoupler connected to the central processing unit and the communication buffer unit. A communication device comprising: a power supply circuit that supplies a predetermined power supply voltage; and a noise filter connected between the power supply circuit and the communication buffer section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11311089U JPH0351535U (en) | 1989-09-27 | 1989-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11311089U JPH0351535U (en) | 1989-09-27 | 1989-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351535U true JPH0351535U (en) | 1991-05-20 |
Family
ID=31661536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11311089U Pending JPH0351535U (en) | 1989-09-27 | 1989-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351535U (en) |
-
1989
- 1989-09-27 JP JP11311089U patent/JPH0351535U/ja active Pending