1.3. Back Panel

1.3.1. Back panel of SG-1C-1*1:

Left to right, downward:

• “DC12V”: 12 V direct current power socket, + in the middle.

• “PoE mode A or B”: PoE Ethernet socket

• “PoE mode B”: PoE Ethernet socket

  Both sockets are interconnected through a PoE Ethernet switch.

• “Power”: LED power indicator

• “Mini USB”: socket for USB 2.0 cable

• “MicroSD”: socket for Micro SD cards

• “Audio out”: linear audio output

• “Reset”: hidden software reset button

• Rectangular 14-contact socket (described below)

• “Mic”: microphone input

1.3.1.1. Back panel socket SG-1C-1*1

Socket at the camera rear panel <rear-view>:

Socket pinout:

01	02	03	04	05	06	07
08	09	10	11	12	13	14

Pin description:

• 01,02,03,04 - RS-232 DTE port, for weather-proof housing management:

  Connector pin	RS-232 signal
  01	TxD
  02	RxD
  03	GND
  04	+12 V

  Note:

  Onto the camera connector pin 04, power supply voltage +12 V is fed, which is used at the controller side as a power-supply source for optical coupler of the interface halvanic isolation.

  The default parameters of the port are 9600 baud, 8N1

  The device file in the camera is /dev/ttyS0

• 08,09,10 - RS-485 port for weather-proof housing management:

  Connector pin	RS-485 signal
  08	D+
  09	D-
  10	GND
  11	+12 V

  Note:

  Power supply voltage +12 V is fed to the camera connector pin 11 which does not belong to RS-485.

  The device file in the camera is /dev/ttyS0

Note:

Both ports for managing weather-proof housing are in fact one and the same port with the switchable modes RS-232 and RS-485 selected through software.

The ports can only be used one at a time, by setting the UART to the corresponding mode in the Device –> General pad through the pop-down menu “serial port type”.

• 05,06,12 - RS-232 DCE port for console:

  Connector pin	RS-232 signal	DB-9F pin (COM port)
  05	RxD	2
  06	GND	5
  12	TxD	3

  The default parameters of the port are 115200 baud, 8N1

  The device file in the camera is: /dev/ttyS1

• 07,13,14 - alarm inputs and outputs:

  Connector pin	Function
  07	ALARM_IN2
  13	ALARM_OUT
  14	ALARM_IN1

  Alarm inputs are pulled up to +3.3 V power. An input is activated by connecting to “ground”.

  Alarm output is 0 V in an inactive state and 3.3 V in an active state.

1.3.2. Back panel of SG-3C-1312:

Left to right, downward:

• “PoE In”: PoE Ethernet socket

• “PoE Out”: PoE Ethernet socket

  Both sockets are interconnected through a PoE Ethernet switch.

• “Reset”: hidden software reset button

• “MicroSD”: socket for Micro SD cards, “upside down”

1.3.3. Back panel of SG-3C-1612:

Rear panel of the SG-3C-1612 is the same as SG-3C-1312 with addition of alarm connector.

In the SG-3C-1612 camera alarm input and output are halvanically isolated by optical coupler.

Alarm input is activated by supplying voltage in range of 2..4 volts or by current 1..16 mA with external resistor.

Optical coupler input is sequence of LED and 220 Ohm resistor.

Alarm output is open collector type. The output is short to ground when asserted. Maximum voltage is 60 V and maximum current is 400 mA.