Sony MPEG4 LAN Camera RS-232 Port & Alarm I/O, Pin configuration chart, RS-485 D+

2.2 RS-232 Port & ALARM I/O

1 2 3 4 5

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1.RS-485 D-

2.RX: This pin is one of the RS-232 pins. It connects with the TX pin of another device.

3.TX: This pin is one of the RS-232 pins. It connects with the RX pin of another device. Please refer to the note below on the standard RS-232 9 Pin Cable with Pin 2 and Pin 3 exchanged; see the pin configuration chart below for details.

4.RS-485 D+

5.GND: Ground contact.

6.ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an

	5V, 20mA
alarm. (	0V(Active) )

7.ALARM IN (INPUT): This is an alarm input that can be programmed in the menu

	5V, 20mA
system to active low. (	0V(Active) )

8.ALARM OUT (OUTPUT): This is an alarm output trigger. Connect this to external

	5V, 20mA
devices such as buzzers or lights. (	0V(Active) )

9.AUDIO OUT: This provides the unit’s audio signal to a speaker.

The pin configuration chart:

9