Sony SNC-DH180 Leaflet



Before installation, connect the supplied cables to the camera as required for 

your usage and wire them.

Loosen the four fixed screws of the dome casing using the supplied wrench 

and lift the dome casing.

unit.
When you route the cables from the side of the camera unit, see “Connecting 

to the side conduit hole”.

  I/O cable: to EXT CTRL connector
  BNC cable: to VIDEO OUT connector
  Audio cable: to AUDIO IN connector

  Pass the cables through the guides to secure the cables. (-4)

The cables are set up at the factory to pass through the bottom conduit hole. If 

you want to use the side conduit hole, perform the following steps:

 Remove the conduit hole cover.
 Disconnect the cables from the connectors, and pull them out from the 

bottom conduit hole.

 Insert the cables through the side conduit hole, and connect the cables to 

their respective connectors.

 Pass the cables through the guides to secure the cables. (-5)
 Attach the conduit hole cover that was removed from the side conduit hole 

to the bottom conduit hole.

If the bottom conduit hole is dirty, the conduit hole cover cannot be fixed 
firmly. In this case, moisture may leak into the casing and this may cause 
a malfunction. Wipe off the dust with a soft cloth, and fix the conduit hole 
cover firmly.
Cover the joint part of the pipe/cover with silicon sealant, etc. to prevent 
moisture from getting inside the casing.
When you install the camera on a wall lengthwise, position the side conduit 
hole directly below to prevent moisture from getting inside the casing. (-1)
Use a pipe/plug with a thread length of 12 mm (

1

/

2

 inch) or less so that it does 

not damage the camera. (-2)

If you attach the camera in the height such as the wall or the ceiling, etc., 
entrust the installation to an experienced contractor or installer.
If you install the camera at a height, ensure that the installation location and 
its material are strong enough to withstand a weight of 15 kg (33 lb 11 oz) or 
more, and then install the camera securely. If they are not strong enough, the 
camera may fall and cause serious injury. If the ceiling is not strong enough, 
the camera may fall and cause serious injury.
To prevent the camera from falling, make sure to attach the supplied wire rope.
If you attach the camera to the ceiling, check periodically, at least once a year, 
to ensure that the connection has not loosened. If conditions warrant, make 
this periodic check more frequently.

Deciding the Installation Location of the Camera  

After deciding the direction in which the camera will shoot, make the required 
hole (ø73 mm (2 

7

/

8

 inches)) for the connecting cables using the supplied 

template. Then decide the four mounting hole positions to install the bracket.

The supplied bracket is provided with eight ø4.5 mm (

3

/

16

 inch) mounting holes. 

Install the bracket on a ceiling or wall with screws through four mounting holes: 
two 83.5 mm (3 

9

/

32

 inch)-pitched holes or four 85.7 mm (3 

3

/

8

 inch)-pitched 

holes. The required mounting screws differ depending on the installation 
location and its material. (Mounting screws are not supplied.)
Steel wall or ceiling: Use M4 bolts and nuts.
Wooden wall or ceiling: Use M4 tapping screws. The panel thickness must be 
15 mm (

5

/

8

 inch) or more.

Concrete wall: Use anchors, bolts and plugs suitable for concrete walls.
Junction box: Use screws to match the holes on the junction box.

The required mounting screws differ depending on the installation location and 
its material. If you do not secure the camera with the appropriate mounting 
screws, the camera may fall off.



Refer to “Mounting screws” for screws to be used.

 Fix the wire rope with the supplied Screw  M4 × 8 to the hole for the 

wire rope on the bottom of the camera unit.

 Fix the wire rope to the ceiling or wall.
 

When you install the camera on a wall, feed the cables through it. (-1)

The screws have a fall-prevention mechanism. The screws inserted into the 
screw holes of the camera unit do not fall even if you turn the camera unit 
upside down.
Insert the two holders to any two of the grooves on the bracket.  
Turn the camera clockwise until the locating pins snap to the holes on the 
holders. Then the four camera installation holes will align the projections on 
the bracket accordingly. There are four projections with an angle of  
90 degrees, so you can select one of four directions.
Then tighten the four camera unit mounting screws to attach the camera 
unit to the bracket through the camera installation holes.

If you cannot use screws on a ceiling or wall, or if you want to make the camera 
less conspicuous, use the YT-ICB45 in-ceiling bracket (optional) with which you 
can mount the camera on the ceiling.
For this model, install the camera to the  position on the side brackets of  
YT-ICB45. Refer to the Installation Instructions of YT-ICB45 for detail information.



The zoom indicator is displayed on the monitor.

When you adjust the camera head angle without loosening camera head 

fixing screw, an internal part may be damaged.

When the lens is not put in the slit of the camera head holder, the moving 

range of the camera head is limited.

If the camera head is too heavy to be adjusted, loosen the camera head fixing 

screw until it moves freely.

When adjusting the angle, be sure that the TOP mark on the camera head 

section faces the ceiling. If the camera is installed with the TOP mark facing 

the floor, the image appears upside down.

If you cannot achieve satisfactory focus with the Easy Focus button due to the 

shooting environment, slide the ZOOM/FOCUS switch level to N/F to focus 

manually. The focus indicator is displayed on the monitor.

Poor focus may also be caused by the dome case assembly. Readjust the 

focus using the system menu.  

For details, refer to the User Guide of the equipment.

Do not turn the lens more than 360 degrees, as this may damage the wiring inside, 

which may cause failure on video output.



Fix the dome casing and the camera unit. 
Align four screw holes on the dome casing with that on the camera unit, and 

tighten four screws with the supplied wrench to secure the dome casing.

Make sure that the cord does not get caught between the dome casing and the 

unit casing. Rotate the cord and adjust the position of the cord.



Connect the LAN cable of the camera to a router or hub in the network using 

the network cable (straight, not supplied).

Connect the LAN cable of the camera to the network connector of a computer 
using the network cable (cross, not supplied).

There are three ways to supply the power source to this camera, as follows.

12 V DC

24 V AC

Power supply equipment pursuant to IEEE802.3af (PoE* system)

*PoE means Power over Ethernet.

If the power is supplied from the power input cable and LAN cable at the same 

time, the power from the LAN cable has priority over the other.



Connect the power input cable of the camera to a 12 V DC or 24 V AC source.

Use a 12 V DC or 24 V AC source isolated from 100 to 240 V AC. Each usable 

voltage ranges are as follows.

12 V DC: 10.8 V to 13.2 V
24 V AC: 21.6 V to 26.4 V

In the USA, The product shall be powered by a UL Listed Class 2 Power Supply 

Only.

In Canada, The product shall be powered by a CSA certified Class 2 Power 

Supply Only

Use UL cable (VW-1 style 10368) for these connections.

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DC 12 V:

CABLE(AWG)

#24

#22

#20

Max. length(m)

4

6

9

AC 24 V:

CABLE(AWG)

#24

#22

#20

Max. length(m)

13

23

30

The power supply equipment pursuant to IEEE802.3af supplies the power 

through the LAN cable. For details, refer to the Instruction Manual of the 

equipment.

Connect the wires of the I/O cable as follows:

Camera inside

3.3 V

2.2 KΩ

Sensor input +

GND

Mechanical switch

Open collector 
output device

Outside

or

GND

GND

10 KΩ

10 KΩ

10 KΩ

(GND)

Sensor input −

R

Camera inside

Alarm Output +

Magnet relay –

24 V AC  

24 V DC,  

1 A or less

Alarm Output –

Outside

5 V

Circuit example

GND

Video compression format 

JPEG/MPEG4/H.264

Audio compression format 

G.711/G.726 (40, 32, 24, 16 kbps)

Maximum frame rate 

SNC-DH180:  

JPEG/MPEG4/H.264: 30 fps (1280 × 720) 

JPEG: 30 fps (1280 × 1024) 

MPEG4: 25 fps (1280 × 1024) 

H.264: 20 fps (1280 × 1024)

 

SNC-DH280: 

JPEG: 16 fps (1920 × 1080) /  

12 fps (1920 ×1440) 

MPEG4: 20 fps (1920 × 1080) /  

15 fps (1920 ×1440) 

H.264: 30 fps (1920 × 1080) /  

20 fps (1920 ×1440)

IR LED  

21 pcs

IR working distance 

SNC-DH180: 30 m (50 IRE)

 

SNC-DH280: 30 m (50 IRE)

Signal system 

NTSC color system/PAL color system (switchable)

Image device 

SNC-DH180: 

1/3 type CMOS (Exmor)

 

 

 

Effective picture elements: 

Approx. 1,390,000

 

SNC-DH280: 

1/2.8 type CMOS (Exmor)

 

 

 

Effective picture elements:  

Approx. 3,270,000

Synchronization 

Internal synchronization

Horizontal resolution 

600 TV lines (analog video)

Video S/N 

More than 50 dB (AGC 0 dB)

Minimum illumination 

SNC-DH180: 

F1.2/View-DR Off/VE Off/AGC High/XDNR 

Middle/ 50 IRE (IP)

 

 

 

Color 0.20 lx 

Black & White 0 lx (IR On)

 

SNC-DH280: 

F1.2/View-DR Off/VE Off/AGC High/XDNR 

Middle/ 50 IRE (IP)

 

 

 

Color 0.40 lx 

Black & White 0 lx (IR On)

Focal length 

3.1 mm to 8.9 mm

Maximum relative aperture 

F1.2 ~ F2.1

View angle 

SNC-DH180: 

Vertical: 67.4° to 25.0° (1280 × 1024) 

Horizontal: 85.4° to 31.2°

 

SNC-DH280: 

Vertical: 65.2° to 24.2° (1920 × 1440) 

Horizontal: 88.5° to 32.3°

Minimum object distance 

300 mm

LAN port 

10BASE-T/100BASE-TX, auto negotiation (RJ-45)

I/O port 

Sensor input : × 1, make contact, break contact

 

Alarm output : × 2, 24 V AC/DC, 1 A

 

 

(mechanical relay outputs electrically 

isolated from the camera)

Video output 

VIDEO OUT: BNC, 1.0 Vp-p, 75 ohms, unbalanced, 

sync negative

Microphone input* 

Minijack (monaural)

 

Plug-in-power supported (rated voltage: 2.5 V DC)

 

Recommended load impedance: 2.2 kΩ

Line input* 

Minijack (monaural)

* The microphone input and the line input are switchable with operating menu.

Line output 

Minijack (monaural), Maximum output level:  

1 Vrms

Power supply 

12 V DC ± 10%

 

24 V AC ± 10%, 50/60 Hz

 

IEEE802.3af compliant (PoE system)

Power consumption 

SNC-DH180: 28 W max.

 

SNC-DH280: 29 W max.

Operating temperature (AC 24 V and DC 12 V)

 

Start temperature: −20°C to +50°C  

(−4°F to +122°F) 

 

Working temperature: −30°C to +50°C  

(−22°F to +122°F)

Operating temperature (IEEE802.3af (PoE SYSTEM))

 

Start temperature: 0°C to 50°C (32°F to 122°F)

 

Working temperature: −10°C to +50°C  

(14°F to 122°F)

Heater operation 

Supported by 24 V AC and 12 V DC only.

 

IEEE802.3af (PoE SYSTEM) (camera power only)

Storage temperature 

–20°C to +60°C (–4°F to +140°F)

Operating humidity 

20% to 80% (Non-condensing)

Storage humidity 

20% to 95%

Dimensions (diameter/height)  

 

166 mm × 119 mm (6 

5

/

8

 inches × 4 

3

/

4

 inches), 

not including the projecting parts

Mass 

Approx. 1.38 kg (3 lb 0.68 oz), not including the 

cables and bracket

Supplied accessories 

CD-ROM (User’s Guides, and supplied 

programs) (1), Bracket (1), Template (1), Wire 

rope (1), Camera unit mounting screws (4), 

Screw  M4 × 8 (1), Audio cable (1), I/O cable (1), 

LAN cable (1), BNC cable (1), Power input 

cable (1), Wrench (1), Installation Manual (this 

document) (1 set)

In-ceiling bracket  YT-ICB45*

* Using the fixture position  on the bracket.
Design and specifications are subject to change without notice.

In case using this device over an extended period of time, please have it 

inspected periodically for safe use.

It may appear flawless, but the components may have deteriorated over 

time, which may cause a malfunction or accident.

For details, please consult the store of purchase or an authorized Sony dealer.

Power 

input 

cable

Ceiling

Network cable 
(straight, not 
supplied)

10BASE-T/ 
100BASE-TX

Router or hub

LAN cable

AUDIO IN

85.7 (3 

3

/

8

)

83.5 (2 

9

/

32

)

Hole for 
connecting 
cables  
ø73 (2 

7

/

8

)

Horizontal marker

Hole for 
installing the 
bracket

Unit: mm (inches)

85.7 (3 

3

/

8

)

46 (1 

13

/

16

)

Vertical marker

Position of conduit hole

12 mm (

1

/

2

 inch) or less

4- ø5 

(

7

/

32

) 

hole

140 (4 

3

/

4

)

Unit: mm (inches)

ø166 (6 

5

/

8

)

119 (4 

3

/

4

)

Wiring slit

Rating label

Ceiling

Bracket 

(supplied)

Ceiling

Screw  M4 × 8 

(supplied)

Camera unit mounting 

screw (supplied) (4)

Groove

Wire rope (supplied)

Locating pin

Holder

*  mark indicates the 

approximate zoom position.

The number indicates 
the zoom position.

*  mark indicates the 

approximate focus position.

The number indicates 
the focus position.

When ZOOM/FOCUS switch slides to W/T

When ZOOM/FOCUS switch slides to N/F