VisorNET 4C

The VisorNET 4C modular video & audio transmission units have been designed to allow a high level of flexibility for system integration projects of all sizes, from 4 cameras to up to 16 cameras per site (higher number of cameras may be achieved by combining several VisorNET groups - contact your Telsec representative for further information on 16+ camera installations). For more information about the video, audio or communications functionalities of the VisorNET 4C equipment, use the links at the header of this page.

In order to select the most suitable VisorNET 4C configuration and/or version for your project, there are five main parameters that you'll need to select:

>> Housing type

>> Video performance

>> Audio requirements

>> Communications

>> Recording requirements

	BASIC VERSIONS	ADVANCED VERSIONS	PRO VERSIONS
HOUSING OPTIONS	Desktop Wall-mount Rack-mount
VIDEO TRANSMISSION	* Around 1 image per second per 64 Kbps of bandwidth * Good performance for video transmission for ADSL and cable * Pre and post video alarms in MJPEG (8-10KB per image)	* MPEG4 video transmission for one camera operation * Very good performance for life monitoring applications (viewing one camera at a time) * 2-6 fps over telephone, 5-15 fps over regular ADSL, 8-15 fps over cable (viewing one camera at a time) * Pre and post video alarms in MJPEG (8-10KB per image)	* MPEG4 used for all cameras, both for transmission and recording * Very good for multi-camera life monitoring and for recording applications. * Pre and post video alarms in MJPEG (8-10KB per image)
AUDIO	* NO AUDIO OPTION	* Optional * 1 channel of two way (full duplex) audio * Mini-jack connectors for microphone input and speakers output * Voice over IP technology with less than 6 Kbps of bandwidth usage.	* Optional * 4 channels of two way (full duplex) audio * Mini-jack connectors for microphone input and speakers output * Voice over IP technology with less than 6 Kbps of bandwidth usage.
COMMUNICATIONS	LAN (built in 10/100 interface) Telephone (serial connection for external modem) (OPTIONAL) ISDN (built-in terminal adapter) (OPTIONAL)
RECORDING OPTIONS	* Network recording in MJPEG format (90,000 images per GB) * Local recording to any VisorDISK NVR in the same LAN * Remote recording to any VisorDISK accessible through the internet	* Network recording in MJPEG format (90,000 images per GB) * Local recording to any VisorDISK NVR in the same LAN * Remote recording to any VisorDISK accessible through the internet	* Network MPEG4 recording offers 500,000 images per GB * Local recording to any VisorDISK NVR in the same LAN * Remote recording to any VisorDISK accessible through the internet

To learn more about the differences on video performance of each of the VisorNET video compression options (BASIC, ADVANCED and PRO) click here. To access extended information on the main functionalities of the VisorNET products, use the links below:

Communications	Serial ports and alarm inputs & outputs
Video	VisorNET versions and optional configurations
Audio	Technical Specifications
VisorNET competitive advantages

Use the following chart to select the right product for your specific application. All part numbers shown in the chart refer to the DESKTOP version of the VisorNET product. Should you require a different housing (rack mounted or wall mounted) simply add /R or /W at the end of the part number to indicate which housing option you require.

Based on the different functionalities of each of the versions, we've prepared a table with a list of possible security applications and the corresponding rating on how each of the VisorNET versions would perform in those scenarios or applications:

APPLICATIONS	BASIC	ADVANCED	PRO
Live viewing of one camera through telephone lines
Live viewing of one camera through ADSL or CABLE
Live viewing of several cameras through telephone lines
Live viewing of several cameras through ADSL or CABLE
Low cost 4 camera video security installation over ADSL or cable
Alarm verification applications (with pre and post alarm video)
Access to cameras through the internet (through a VisorPORTAL secure website)
Recording onto external local or remote VisorDISK
Audio
MPEG4 compression for transmission
MPEG4 compression for recording
Stackable (with other 2C or 4C units)

VisorNET back-panel connectors

All VisorNET 4C units share the same technical specifications or characteristics, with the exception of those functionalities that are particular to one specific versions and that were presented in the chart above.

VisorNET 4C TECHNICAL SPECIFICATIONS
COMMUNICATIONS
LAN	Built in 10/100 ethernet interface in all versions
PSTN (optional)	Support for external PSTN modem
ISDN (optional)	Support for internal TA for ISDN basic access line
Protocols	TCP, UDP, HTTP, FTP, RTP, RTSP, RTCP
SERIAL PORTS
RS232	1
RS485	1
VIDEO
Video Inputs	4
Video Outputs	0 (on MJPEG and MPEG4x1 versions) 1 (on MPEG4x4 versions)
Video compression format	MJPEG, MPEG4/H263 (on MJPEG and MPEG4x1 versions) MPEG4 and MJPEG (on MPEG4x4 versions)
AUDIO (optional)
Audio inputs / outputs	1 input / 1 output (on MJPEG and MPEG4x1 versions) 4 input / 4 output (on MPEG4x4 versions)
Connector type	Mini-jack (PC type microphone and speaker connectors)
Compression format	G.732.1
Transmission protocol	H.323
ALARM INPUTS
Number of alarm inputs (dry-contact type)	6
Normally open, normally closed, supervised and non/supervised modes	YES
RELAY OUTPUTS
Number of relay outputs	2
POWER SUPPLY
Power	110/220 Vac version with internal power supply 12 Vdc version with external power supply
Power output	12 Vdc (0.5 Amps)
Power consumption
HOUSING
Housing versions	Desktop, rack-mount, wall-mount
SIZE
Size
CERTIFICATIONS
Certifications	UL, FCC

VisorNET 4C VERSIONS VIDEO PERFORMANCE

There are three main models of VisorNET 4 camera equipment that differentiate from each other in the video functionalities and performance they offer. The generic names of these versions are VisorNET BASIC, VisorNET ADVANCED and VisorNET PRO. The chart below presents the functionalities and differences of each of these versions:

	BASIC versions	ADVANCED versions	PRO versions
Video transmission	MJPEG	MPEG4 (first active camera) MJPEG (rest of cameras)	MPEG4
Video recording	MJPEG	MJPEG	MPEG4
Video alarms	MJPEG	MJPEG	MJPEG

This three basic versions have different levels of video performance depending on the type of application so, as a reference, the following table presents an analysis of how suitable the VisorNET versions are for each application.

VIDEO MONITORING APPLICATIONS

BASIC

ADVANCED

PRO

Transmission from one single camera

Video Monitoring over telephone lines

AVERAGE

(0.5 - 1 fps)

GOOD

(2-6 fps)

GOOD

(2-6 fps)

Video Monitoring over ADSL - 128 Kbps

GOOD

( 1.5 - 2 fps)

VERY GOOD

(4 - 10 fps)

VERY GOOD

(4 - 10 fps)

Video Monitoring over ADSL - 256 Kbps

GOOD

( 3 - 4 fps)

VERY GOOD

( 6 - 15 fps)

VERY GOOD

( 6 - 15 fps)

Transmission from 4 cameras simultaneously

Video Monitoring over telephone lines

LOW

(0.1 - 0.2 fps/cam)

LOW

(0.2 - 0.3 fps/cam)

AVERAGE

(0.5 - 1 fps/cam)

Video Monitoring over ADSL - 128 Kbps

LOW

(0.2 - 0.4 fps/cam)

LOW

(0.3 - 0.5 fps/cam)

AVERAGE

(1 - 3 fps/cam)

Video Monitoring over ADSL - 256 Kbps

AVERAGE

(0.5 - 1 fps/cam)

AVERAGE

(0.6 - 1.5 fps/cam)

GOOD

(2-6 fps/cam)

VIDEO RECORDING APPLICATIONS	BASIC	ADVANCED	PRO
Video compression format	MJPEG	MJPEG	MPEG4
Average size per image	8 - 12 KB	8 - 12 KB	1 - 3 KB
Number of frames per GB	90,000	90,000	500,000
Hard drive space for 30 days of continuous recording from 4 cameras at 3.5 fps each.	725 GB	725 GB	170 GB
Motion detection functionality for recording space optimization	NO	NO	YES
Maximum frame rate per camera with all cameras are recording at maximum performance	3.5	3.5	25

OTHER VIDEO FUNCTIONALITIES	BASIC	ADVANCED	PRO
Analog video outputs	0	0	1
Loop through for selected camera	- - -	- - -	YES
Quad mode on video output	- - -	- - -	YES