JVC VN-H237VPU, VN-H257VPU Cables, Troubleshooting, Specifications, Audio cable connection (VN-H257VPU), Alarm I/O cable connection (VN-H257VPU), Symptom, Causes and Countermeasures, LAN

Cables (VN-H257VPU) Troubleshooting

	Cable type		Color	Signal name
1	1Power cable		Red	AC 24 V
			Black	AC 24 V
	2
			Red	INPUT 1 (ALARM)
	3
			Brown	INPUT 2 (ALARM)
	2Alarm I/O cable	Black	Orange	OUTPUT 1 (ALARM)
			Yellow	OUTPUT 2 (ALARM)
			Black	GND (ALARM)
		Brown	White	MIC IN
			Yellow	GND (MIC IN)
	3Audio cable
		Black	White	LINE OUT
			Yellow	GND (LINE OUT)

Symptom		Causes and Countermeasures
No monitor image is output.	The image output may be turned Off on Internet Explorer.
	Check the monitor output setting.
The external mic sound is not heard.	•	Check the MIC connection.
	•	Is the audio setting turned off? (☞ “Instructions (Setting)”→ “Audio Page”)
Movement of network image is not	•	If the monitor image output is turned ON, a lower frame rate is set for
smooth		network images.
	•	If you turned the monitor image output to OFF, set the frame rate
		again.(☞ “Instructions (Setting)” - “Internet Explorer Setting” -
		“Encoding Page”)
Lens is out of focus	Is the focus adjustment gear engaged? Check the location of the catch.

●Connecting the power cable to AC 24 V source

Conductor	1.0 mm dia	1.6 mm dia	2.0 mm dia
diameter (mm)	or more	or more	or more
Max cable	90	240	370
distance (meters)
(Reference value)

Note

•For safety reasons, turn on the power only after confirming that all the connections are completed.

•Be sure to turn off the camera before connecting cables.

•If you use both the AC 24 V power cable and the PoE-based LAN cable simultaneously, the camera may fail. Always supply power using either method.

•To use an AC 24 V power supply, remove the factory-installed tape from the power cable, connect to an AC 24 V power supply, and wrap the connector with new insulation tape and waterproof tape.

●LAN cable

•When connecting to a switching hub: Use a straight cable.

•When connecting to a computer: Use a crossing cable.

•A 100-meter or less length and Category-5 or higher grade STP (shielded) cable is recommended.

Note

•The crossing cable may not be used for some computer models. Check the LAN specifications of the computer when you directly connect this unit to the computer.

●Alarm I/O cable

•A 50-meter or less length shielded cable is recommended.

•Attach the supplied ferrite core to the cable.

Specifications

*The specifications and appearance of this unit are subject to change for purposes of improvement without prior notice.

			VN-H257VPU	VN-H237VPU
		Image sensor	1/3-inch Square-Pixel Progressive	Scan CMOS (elementary color filter)
		Effective pixels	Approximately 2,120,000 pixels
Camera			1944 (H) x 1092 (V)
section		Minimum illuminance	(50 %, AGC High, 1/30 s)
			Color : 0.3 lx (typ.)
		of subject
			Black and White: 0.03 lx (typ.)
Monitor output			75 Ω, 1.0 Vp-p
			NTSC or PAL (switch selectable)
		Input	Can connect to a microphone	–
Audio input			that has a plug-in power system
	Reference voltage		DC2.47 V (typ.)	–
		Impedance	2.2 kΩ (typ.)	–
Audio output			Line OUT (200 Ω, Max 1.9 Vp-p)	–

Audio cable connection (VN-H257VPU)

Connect the audio cable for an audio device.

Audio cable (Brown and White) (MIC IN) : Connect to a condenser microphone that has a plug-in power system, etc.

Audio cable (Black and White) (LINE OUT) : Connect to a speaker with a built-in amp, etc.

Memo

• A shielded audio cable is recommended.

* For the location to connect the audio cable, refer to [Cabling] (☞ page 2).

Alarm I/O cable connection (VN-H257VPU)

	Image compression	JPEG, H.264 High Profile, H.264 Baseline Profile, MPEG-4
	format
		1920 x 1080
		1280 x 960
	Frame size	1280 x 720
Network		640 x 480
output		640 x 360
		320 x 240
	Audio compression	μ-Law (64 kbps), AD/DA 16 bits,	–
	formats	Fs = 8 kHz, monaural
	Network interface	RJ-45
		100BASE-TX/10BASE-T/FULL/HALF/Auto-negotiation enabled
		No-voltage a contact input, PNP
		open collector input, low level,
Alarm input		latch/momentary (500 msec or	–
		longer) (1 mA circuit current at
		low level, and 3.3 VDC applied

Alarm input

Connect an infrared sensor, door sensor, metal sensor, a manual switch or other device.

•To avoid noise entering the internal circuit, enter the non-voltage contact signal in the Alarm IN terminal.

•Do not supply voltage.

•The alarm can be set to be activated during close contact (MAKE) or during open contact (BREAK) can be set from the menu.

•The alarm signal should last for at least 500 msec. If the alarm signal is short, it may not be recognized.

●Input conditions

•Connect non-voltage a contact or open collector output circuit

(For details on how to set polarities, please refer to “Instructions (Setting)”.)

•Low level terminal current below 1 mA

•High level terminal current 3.3 V

This		Sensor example (1)
camera
DC3.3 V		VCC
Input 1 or
Input 2	OUT	R
3.3 V	1 mA
G	G
(Alarm input equivalent circuit)		Sensor example (2)
		Relay switch or
		other devices

OUT

G

Alarm output

Connect an alarm device, indicator, lighting, buzzer or other device.

•An alarm output signal is an open collector output. You can configure the menu to set the alarm to sound when contacts short circuit (MAKE) or when the contacts are open (BREAK). (Pressure resistance lower than 16V, 30 mA)

•This terminal has different polarities. The output voltage at the positive terminal must always be higher than the output voltage at the negative terminal. Otherwise, the circuit may be damaged.

●Output conditions

•Equivalent to NPN open collector output

(For details on how to set the output logic, please refer to “Instructions (Setting)”.)

•Safe excitation voltage: DC16 V or lower

•Allowable surge current: 30 mA

•Momentary (100 ms to 5000 ms) output

(For details on how to set the time, please refer to “Instructions (Setting)”.)

Alarm device

Thisexample camera

Output 1 or		DC12 V
Output 2	IN R

G G

(Alarm output equivalent circuit)

Note

•Connect the G terminal cable of this camera to the GND of the alarm device.

		voltage at high level)
		NPN open collector -output (16
Alarm output		VDC safe excitation voltage, and	–
		30 mA allowable sink current)
Alarm record		16 MB
	Focal length	f = 3 mm to 9 mm	f = 2.8 to 10.5 mm
Lens	Maximum aperture	F 1.2 (f =3mm) to F 2.1 (f =9 mm)	F 1.2 (f = 2.8 mm) to
	ratio		F 2.6 (f = 10.5 mm)
	Aperture range	F 1.2 to F 360	F 1.2 to F 360
	Zoom ratio	3 x	3.75 x
LAN	Standards	Compliant with IEEE802.3, IEEE802.3u and IEEE802.3af
	Communication	TCP/IP, UDP/IP, FTP, ICMP, ARP, DHCP, SNTP, HTTP, SMTP, RTP,
standards
	protocol	RTSP, IPv4, IPv6, DSCP, HTTPS, SNMP
	Power supply voltage	AC24 V 50 Hz/60 Hz, or	PoE (DC-48 V)
		PoE (DC-48 V)
	Current consumption	AC24 V 0.5 A, or PoE 150 mA (7.2 W)	120 mA
General	Ambient temperature	-10 °C to 50 °C (Operation)
		0 °C to 40 °C (Recommended)
	Ambient humidity	20 %RH to 90 %RH (without condensation)
	Mass	Approx. 1.3 kg
	Dustproof/Waterproof	IP66 compliant

VN-H257VPU/VN-H237VPU	121
External dimensions (unit: mm)	113

160

* For connecting the Alarm I/O cable, refer to [Cabling] (☞ page 2).

5

9

42

Screws for duct G3/4-14UNC (Bottom, side)

27

126

SR42

160

LST1236-001D

4