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The above figure shows the flow to supply power. 
[Power supply circuit on the IO board]

• The DC powers of +12V and +3.3V are generated on the IO board. 
• The +12V power is supplied by the AC adaptor. This +12V power is used on the following boards:

- IO board     : +3.3V DC-DC converter circuit and output terminal of the IO terminal (CN601) 
- CPU board : Power supply to drive the PAN motor drive driver
- TILT board : Power supply to drive the TILT motor drive driver, and DC-DC converter circuit for +5.7V that is supplied to the

camera unit 
*The +12V power is mainly used as the power to drive the PAN and TILT motors and as the source power of the +5.7V DC-
DC converter in the camera unit. The +12V power for the +5.7V DC-DC converter in the camera unit is separated from the
+12V power for driving the PAN/TILT motor in the common mode filter (L124) on the CPU board. 

• The +3.3V power is generated from the +12V power in the DC-DC converter circuit (IC603). It is used on the following boards:

- IO board       : Audio circuit and IO terminal unit
- CPU board : All of the +3.3V power supply

• On the CPU board, the +1.2V power used in the circuits internal to the CPU (IC102) is generated in the regulator (IC117). 

• On the TILT board, the +5.7V power used in the camera unit is generated in the DC-DC converter unit (IC953) using the +12V

power that is supplied from the IO board via the CPU board. This +12V power is used on the following boards:

- TILT board     : Power supply to the TILT motor drive driver

• +5.7V power is used on the following boards.

- VIDEO board: DC-DC converter circuit (IC805) to generate the +3.3V power used in the camera unit

                         Power supply circuit (IC801) to generate the +15V and -5.5V powers to drive the CCD

- LENS board : Motor drive power supply to drive the FOCUS and ZOOM motors in the LENS unit

On the VIDEO board, four powers of +3.3V, +15V, -5.5V, and -0.4V are generated from the +5.7V power supplied from the TILT
board. 
The following two power supply circuits are mounted: 

• The +3.3V power is used on the following boards:

- VIDEO board: All of the +3.3V
- LENS board : Power supply to the LENS motor drive driver, and power supply to drive the LED (LED901)

• The +15V and -5.5V powers are used on the following boards:

- VIDEO board: V driver circuit (IC802) to drive the CCD
- CCD board : CCD drive power supply

• The -0.4V power is used on the following board:

- VIDEO board: V driver circuit (IC802) to drive the CCD

                         *The -0.4V power is generated from the -5.5V power supply (IC809).

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• The Input terminal has two systems; both of them are connected to the Input Port of the IC102 GPIO.
• Due to Internal Pull-up Resistance, the PNP Transistor (Q600, Q605) on the following level is usually in the OFF state and the

Input Port connected to the collector is at L level.

• If the terminal is short-circuited with the GND or the signal of L level is input, the PNP Transistor goes ON and the Input Port

goes to H level.

• The CPU checks the state of this port regularly to detect a change in this signal.
• The Output terminal is controlled by the Output Port of the IC102. When the Port output is L, the transistor (Q606) on the follow-

ing level is OFF and, when the output is H, the transistor is ON. This transistor has open collector output and it controls external
equipment via external pull-up.

• The Clear Setting SW (SW102) mounted on the CPU board is connected to the Input Port of the GPIO. It is usually at H level and

goes to L level, when the SW is pressed.

• The CPU(IC102) monitors this Input Port periodically and, if it detects that this SW is pressed longer than a specified period, the

setting values other than the RTC are returned to factory settings.

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The camera’s indicator lights as follows according to the status of the camera. Understanding how and when
the indicator lights can help you troubleshoot problems with the camera.

Camera Status or Operation

Indicator Color and Pattern

Normal Operation

Green

When power is turned on (camera is starting up)

Orange

→Flashing orange

Obtaining IP address via DHCP

Flashing green

LAN cable not connected or no LAN connection

Orange

Automatic Setup

In progress

Flashing green

Completed

Green

Updating firmware

Flashing orange

Factory reset (by software or by pressing the FACTORY DEFAULT 
RESET button)

Flashing orange

→Off→The camera restarts)

UPnP

TM

 port forwarding error

Flashing orange (2-second intervals)

Camera failure

Flashing red

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