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SECTION 4 – IP and Mesh Products

NETNode IP Mesh Radio (Plain)

Cobham NETNode IP mesh radios are the latest innovations in the

expanding range of Cobham Surveillance solutions that feature domo

technology at their core.

NETNode IP radios can be combined in a fluid self forming, self

healing mesh containing up to eight radios. The NETNode radios

within the mesh exchange data on a single frequency, simplifying

frequency management. The entire mesh occupies just 2.5MHz

of bandwidth (3 and 3.5MHz also available). The NETNode radios

employ the unique Cobham COFDM modulation scheme and

therefore offer excellent RF penetration and performance in the

presence of multipath.

The NETNode mesh radios can provide up to 3.5Mb/s of IP data

(data rate depends on mode, number of nodes and range between

nodes). This available IP data rate can be used to exchange IP data

traffic between nodes.

The highly flexible mesh topology means that data can be exchanged

between nodes in a point to point or multi-point fashion, range

can be extended by using nodes as repeaters. The self forming, self

healing mesh architecture makes the NETNode product ideal for

use in mobile surveillance applications, command and control, or

advanced robotics.

The NETNode can be connected to third party cameras using the

NETAV option. Alternatively, there are two dedicated PTZ camera

solutions available for direct connection to the NETNode: NETPTZ* is

a high performance, high quality day/night PTZ camera for long range

and overt surveillance; NETuPT is a miniature pan and tilt camera

suitable for up-close surveillance. The NETuPT and NETPTZ* options

require the NETAV option to be fitted.

Security of the entire mesh network can be ensured by the use of the

optional AES128 or AES256 encryption.

Control of the deployed mesh is achieved using the inbuilt web

browser or comprehensive Mesh Commander* PC application. This

software suite, based around a mapping display, is used to configure

and monitor the mesh, and to control its nodes and cameras. Video

can be viewed on the PC device using the Mesh Commander*

software or, if IP Hardware Decoder devices are employed, video can

be viewed on conventional monitors and recorded on conventional

recorders. Remote users simply wishing to monitor the network,

control cameras or view video, can make use of the Mesh Viewer*

application available for smaller hand held devices such as PDAs.

Speciﬁcation:

Interfaces

RF Interfaces

(Antenna 1 and 2) SMA

Power Lemo

Ethernet 1 RJ45

Ethernet 2 RJ45

Control and misc I/O DType

Camera Lemo

Typical range

NETNode-P-217250 (1W) Non Line of Sight Light urban 500-700m

Line of Sight 40km+

RF Interfaces

Antenna 1 Switched transmit receive antenna

Antenna 2 Receive only antenna

RF and modulation

Output frequency 340 to 470MHz, 1000 to 1500MHz, 2170 to 2500MHz,

4500 to 5000MHz*, or 5500 to 6000MHz*

Tuning step size 125kHz step

Output power +30 to 0dBm in 0.25dB steps

Bandwidth 2.5, 3 or 3.5MHz

Mesh capacity Up to 3.5Mb/s

Modulation COFDM 360 carrier modulation

Carrier Modulation BPSK, QPSK or 16QAM (adaptive)

FEC rate FEC1/2

Receive diversity Maximum Ratio Combining

Receive sensitivity -98dBm for most robust mode

IP interface

Primary and secondary

ethernet electrical 100BaseT Ethernet

IP address allocation DHCP dynamic IP addressing

Video and audio Multicast VLC compatible

streaming format RTSP Support

A/V input option

Video input Composite or SDI (selectable)

Video format 525 or 625 (PAL or NTSC)

Video encoding MPEG4

Quality User selectable quality level

Video bit-rate 2.4Mb/s to 50kb/s (variable)

Resolution 704, 576, 480 or 352

Frame rate Self selecting 30 to 2F/s

Stills capture feature HiRes JPEG ﬁle

Audio input Line level or microphone level

Audio sample frequency 48KHz

Audio encoding MPEG audio layer 1 G726

Audio bit-rate 384 to 64kb/s

Store and forward options*

Storage format SD card interface (Secure Digital card)

Record options Continuous or triggered

Files download From web browser interface

Video and audio clip size 30 seconds

Open Audio comms channel (shared voice channel)

Multi-user audio

comms channel Interface microphone level/headphone o/p

Compression G726 32kbit audio

Encryption

Type AES128 or AES256 (both optional)

GPS

Dedicated GPS interface RS232

Data interface

RS232/RS485 data input 1K2 to 115K2 baud switchable

(shared with user camera With UDP and TCP routing protocol

control)

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