Chapter 2. Hardware Description

3.Rear Port Specification and Connection Examples

The RS-232 COM port is used to connect the DVR to a PC (optional updating procedure) or to connect an external device like a DVR controller (optional). The required settings to use the RS-232 port can be configured in the DVR settings.

Connection Type: 9 pole D-Type male connector

Maximum Input Voltage: +/- 25V

Pin 1

Pin 9

Figure 9 DE-9M Serial Port

[Please refer to the Figure 1 (4ch Model), Figure 2 (9ch Model), Figure 3 (16ch Model) item marked “⑩” Serial Connection].

RS-232 / DE-9M Serial Port Pin Configuration Table

Signal Type

Pin Number

Description

DCD In

1

Carrier Detection Signal (not used)

Rx

2

RS232 Receive

Tx

3

RS232 Transmit

N/C

4

No Connection

GND

5

System Ground

N/C

6

No Connection

RTS

7

RS232 Request To Send Signal

CTS

8

RS232 Clear To Send Signal

N/C

9

No Connection

 

 

 

 

Table 10. RS-232 pin configuration

 

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Clover Electronics DV1670D instruction manual Rts