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NTVCAM51 User Guide 1-0
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ST/U2/HD model: two DIP switches are set to ON or OFF to select different modes of operation as shown in Table 2.2
Table 2.2 Dial Switch setting
Note: Working mode can be applicable for web upgrade.
2.4.3 RS-232 Interface
1)
ST model RS-232C interface specification as shown below
Computer or keyboard and camera connection method
Camera
WindowsDB-9
1.DTR 1.DCD
2.DSR 2.RXD
3.TXD 3.TXD
4.GND 4.DTR
5.RXD 5.GND
6.GND 6.DSR
7.IR OUT 7.RTS
8.NC 8.CTS
9.RI
2)
RS-232 Mini-DIN 8-pin Port Definition
No.
SW1
SW2
Explanation
1
OFF
ON
Working mode
2
ON
OFF
Updating mode
NO.
Port
Definition
1
DTR
Data Terminal Ready
2
DSR
Data Set Ready
3
TXD
Transmit Data
4
GND
System Ground
5
RXD
Receive Data
6
GND
System Ground
7
IR OUT
IR Commander Signal
8
NC
No Connection