Planet Technology DVR-470 ユーザーズマニュアル

                                                                                                                                                                                           

Page 91 

 

 

The corresponding relationship of cross cable 

 

DVR-802x has standard DB9 RS-232 interface, like PC COM port.   

 

“I” means DVR input and O means DVR output. 

Pin index 

Name 

I/O 

Description 

1 DCD I 

Carrier 

Detect 

2 RXD I 

Receive 

Data 

3 TXD O 

Transfer 

Data 

4 

DTR 

O 

Terminal Device Ready 

5 GND  

Ground 

6 -- -- 

-- 

7 RTS O 

Request 

to 

Send 

8 CTS I 

Clear 

Data