H.264 4CH - 2-8.RS232 Connections

User Manual
Page  16
[8 Channel]
No Explain No Explain No Explain No Explain
1
RS485 D-
2
RS485 D+
3
RELAY-COM
4
RELAY-NC
5
RELAY-NO
6
GND
7
ALARM D8
8
ALARM D7
9
ALARM D6
10
ALARM D5
11
GND
12
ALARM D4
13
ALARM D3
14
ALARM D2
15
ALARM D1
[16 Channel]
No Explain No Explain No Explain No Explain
1
RS485 D-
2
RS485 D+
3
RELAY-COM2
4
RELAY-NC2
5
RELAY-NO2
6
RELAY-COM1
7
RELAY-NC1
8
RELAY-NO1
9
GND
10
ALARM D16
11
ALARM D15
12
ALARM D14
13
ALARM D13
14
GND
15
ALARM D12
16
ALARM D11
17
ALARM D10
18
ALARM D9
19
GND
20
ALARM D8
21
ALARM D7
22
ALARM D6
23
ALARM D5
24
GND
25
ALARM D4
26
ALARM D3
27
ALARM D2
28
ALARM D1
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.
CHAPTER 2. HARDWARE CONFIGURATION
8. RS232 Connections
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 No Connection