SB Wireless Shop - MeshDynamics MD4458 Structured Mesh

MD4000 Structured Mesh^TM Modules Feature Set

Multi-radio backhaul on non-interfering channels
Supports up to 4 radios in the same enclosure.
No appreciable bandwidth degradation per hop.
Deterministic Latency and Jitter at each hop
WPA/AES Secure backhaul traffic at all times
Supports WPA/AES and WEP security for clients
Multiple-SSID with 802.1q VLAN support
IEEE 802,11e Prioritized traffic control
Adjustable Power Control and ACK timing
Remote Management at Network, Node and radio levels
Module Operating Range: -40 to +85 Celsius

5GHZ Backhaul Products (operating in 5.250GHz-5.350 GHz, 5.4000GHz-5.700GHz, 5.725GHz–5.845GHz)

Model	Description
MD4250-AAxx	2-Radio module 5GHz BH uplink and downlink Structured Mesh Backhaul (BH), slots 0, 1.
MD4350-AABx	3-Radio module 5GHz BH in slots 0,1. 2.4GHz AP radio in slot 2. AP client connectivity settable to b, g, b and g.
MD4452-AABA	4-Radio module 5GHz BH in slots 0,1. 2.4GHz AP radio in slot 2. Second 5GHz Backhaul downlink in slot 3.
MD4454-AAAA	4-Radio module with 4 radios all 5GHz downlinks. Intended as a root node with four 90 degree panel antennas.
MD4458-AABB	4-Radio module 5GHz BH in slots 0,1. Two 2.4GHz AP radios in slots 2, 3. AP connectivity settable to b, g, b and g.
MD4455-AABA	4-Radio mobile mesh module 5GHz BH in slots 0,1. 2.4G AP radio in slot 2. 5GHz Mobility Scanner radio in slot 3.

Meshdynamics Third Generation Wireless Products

The major problem with the preceding generations of wireless technology is that they could not overcome the key limiting factors in outdoor networking: scarce radio capacity that limits performance; the cost of many wired or fiber connections in the outdoor environment; and the need for easy trouble free deployment.

Meshdynamics' patented and patent-pending solutions begin by providing at least two backhaul radios to each node.

The Power of Using Multiple Backhaul Radios

To overcome the problems of congestion and contention one radio is used to create a link to its upstream (nearer the wired source or "root") node. Another radio creates a link downstream to the next neighbor node. The radios are on separate (non interfering) channels.

This is different from the so-called dual radio solutions, where only one radio serves as the backhaul. The other radio services clients.

Meshdynamics MD4000 products are more powerful because:

Each node may be sending and receiving simultaneously to its upstream and downstream neighbors, unlike the backhaul radio of the dual radio, which must continually "turn around" between sending and receiving upstream and downstream.
Because each link is managed independently, the available channels can now be re-used across the network. This expands the available spectrum, increasing performance up to 50 times when compared to single backhaul radio products. [More]

Optimized for Latency Sensitive Traffic (e.g. Video, VOIP)

The multi-radio intelligent backhaul pioneered by Meshdynamics vastly increases the performance of the network for demanding data applications. But even more important, Meshdynamics' unique third generation solution delivers low delay (latency) and minimal variation in delay (jitter). Demanding applications like full-motion surveillance video and voice over IP (VOIP) operate over multiple hops. Our military and commercial customers have confirmed that other mesh products (using a single backhaul radio) fail. [More]

Automatic Channel Management avoids RF Interference

One factor limiting the spectrum capacity of wireless mesh networks is interference from devices outside the network. Most wireless mesh products operate in the unlicensed 802.11a and 802.11b/g bands. Unfortunately, all devices transmitting in the same area must share the same RF space. Meshdynamics' third-generation Structured Mesh^TM algorithms detect and avoid RF interference from non-Meshdynamics products. Each node contains the equivalent of a radio spectrum robot, monitoring other radio traffic, tracking its neighbor Meshdynamics mesh nodes, and adjusting channel mapping on the backhauls automatically and without disturbing users' sessions - automatically. [More]

Robust Security and Seamless Interoperability

Our backhaul automatically encrypts all backhaul traffic over the network (128 bit AES-CCM). Multiple encryption options – ranging from WEP to WPA2 (IEEE 802.11i) - are also provided for client side encryption. Meshdynamics mesh routing is layer 2 so all our products integrate with leading authentication and security solutions and work seamlessly with Layer 3 routers. [More]

MD4000 Structured Mesh^TM Modules Specifications & Certifications

Dimensions, weight, & Weather rating:	8" x 6" x 2" (length x width x height), 3.0 lbs, NEMA 67 weather tight
Operating Temp. Range:	-40 to +85 Celsius.
Power Supply Voltage:	12 VDC - 48 VDC. (24VDC 2A PoE Supply Not Included)
Power Consumption:	5-16 W depending on number of radios (up to 4 in one enclosure)
Ethernet Ports:	Two. Power over Ethernet (POE) supported on Eth Port 1
Serial Ports:	One. May be exposed through second Ethernet Port
Antenna Connectors:	Four, N-Female. two on top, two on bottom.
Network Management:	Yes. (See: Network Manager)
Standard Warranty:	1 yr.

Radio Cards Supported:	Up to four field upgradeable mini-PCI radios per enclosure
Radio Frequency Bands Supported:	2.4GHz, 5.8GHz and 4.9GHz Atheros based radios
Radio Output Power Supported (millwatt):	Each radio is capable of transmission at up to 400 mW
Radio Transmit Power range (dBm, typical):	21 dBm at 54 Mbps, 25 dBm at 12 Mbps or lower
Radio Receive Sensitivity range (dBm, typical):	-75 dBm at 54 Mbps, -90 dBm at 12 Mbps or lower

Backhaul Capacity (raw):	54 Mbps raw, 108 Mbps raw, Turbo mode
Backhaul Capacity TCP/IP:	22 Mbps TCP/IP, 44 Mbps TCP/IP Turbo mode (Validated by USAF)
Bandwidth Degradation:	No degradation over multiple hops (Validated by USAF)
Latency between hops:	Less than 1 millisecond per hop (Validated by USAF)
Maximum number of Hops (field tested):	Field-tested at 18 hops, string-of-pearl, 18 Mbps TCP/IP end-to-end

128 Bit Security/Encryption?:	Yes. Support both WEP and WPA/AES (e.g. with temporal keys).
Secure Backhaul Traffic?:	Yes. 128 Bit WPA/AES encryption (e.g. with temporal keys).
Priority Traffic and IEEE 802.11e?:	Yes. Up to 4 IEEE 802.11e compliant categories supported.
Multiple VLANs and multiple SSIDs?:	Yes. 16 standard. Hidden SSID with muted beacons also supported.
Support Radius AAA server?:	Yes.

RF Bandwidth control?:	Yes. Selectable based on settings available for all radios.
RF Transmit Power Control?:	Yes. Slider scale user settable for all radios (0 – 100%).
RF Adjustable ACK timing for long range?:	Yes. Range: 50 us - 500 us, for all radios.
RF Auto Channel Management?:	Yes. Manual overrides/channel exclusions also possible.
GPS radio support in enclosure?:	Yes. Uses serial line connection and one N-FEMALE antenna port.

Ability to Change Channel Width?:	Yes. For Non FCC applications channel width settable to 5, 10,20, 40 MHz.
Ability to set custom channel frequencies?:	Yes. Center Frequency of Channel settable via NMS utility.
Multi-country support?:	Yes. Country and channel selection. NMS settable.
Module is FCC/CE Compliant?:	Yes. FCC ID: UZU-MD5, UZU-MD2, Can: IC-6935A-MD5, IC-6935A-MD2.
U.S. Government Supplier Approved?:	Yes. GSA Contract GS-35F-0652T.

MD4000 Structured Mesh^TM Documentation

MD4000 Structured Mesh^TM Notes

The MD4000 Family also supports 4.9GHz radios in both backhaul and service radio configurations. Contact us for details.
All MD4000 nodes support GPS radio integration as an option. The GPS radio uses the serial port and 1 N-Female antenna port.
Intrinsic Safe versions of all MD4000 products are supported for hazardous applications (e.g. mining, military). Contact us for details.