Airmux-200 Update for August 2007. Airmux 200 Slide 2 Agenda Symmetrical vs. Asymmetrical...

Airmux-200Update for August 2007

Airmux 200 Slide 2

Agenda

• Symmetrical vs. Asymmetrical transmission

• HE

• HSS feature

• IDU-R

• 8 port PoE

• Wrap-up

Airmux 200 Slide 3

Asymmetrical vs. Symmetrical

• Most TDD radios transmit and receive in a “demand-based” mode

•If there is more data to send, then they spend a longer time sending

•If there is more data to receive they spend a longer interval receiving.

•Good on paper—not good for certain applications—voice and video

•Airmux is completely symmetrical•Equal time sending and receiving every time

Airmux 200 Slide 4

Airmux 200-Voice and Video

Designed to transmit T1 traffic•All transmission is symmetrical

•Standard, unframed E1/T1, compliant with ITU-T standards

•BER < 1x10-11 @ sensitivity threshold

•Accurate clock recovery mechanism (0.05 PPM)

•Advanced clock configurations

•Patented ARQ fast retransmission

Airmux 200 Slide 5

New- HE ODU

• High power (up to 23 dBm)

• Available in 5.8 GHz

• Supports Synchronized Co-located Units-HSS

• 4 x the transmit power

• Higher link quality & reliability

• Best for areas with high RF interference

Airmux 200 Slide 6

Collocation Challenges

When multiple radios are installed in close proximity, sources of interference are multiplied:

Frequency Interference: Collocated units use the same and adjacent frequencies

Transmit/Receive Interference:Units transmit at the time that other units try to receive

Airmux 200 Slide 7

Airmux Hub Site Synchronization

•Unique burst synchronization technique

•Synchronizes Tx and Rx timing for all units at a hub site

•Eliminates collocation TDD interference

•Support mixture of 20, 10, 5 MHz Channels

•Enables multi point-to-point architecture

Airmux 200 Slide 8

HSS Basic Architecture (topology)

All collocated units are synchronized using a shared sync pulse

The sync pulse is generated by a Hub Sync Master (HSM) ODU and distributed through sync cables and HSS unit to Hub Sync Client (HSC) ODUs

A Hub Sync Client can be configured in two ways: Hub Sync Client – Continue Transmission: In the event that the unit loses

synchronization with the Hub Sync Master, the link remains active. However, without synchronization pulses, it is possible that this unit will cause interference.

Hub Sync Client – Disable Transmission: In the event that the unit loses synchronization with the Hub Sync Master, the link is dropped until the synchronization pulses resume. This setting prevents the unit from causing interference.

The remote ODUs that are not located at the hub site, are called Independent Units and do not require HSS hardware.

Airmux 200 Slide 9

Hub Site Synchronization (HSS)

•Supporting up to 16 collocated units

•Requires HSS Unit, HSSU-10, and Sync cables

•Supported products:• For all ODU High End (ODU-HE) and All-

Indoor (AIND) products

Airmux 200 Slide 10

HSSU-10

•Passive CLK distribution unit (no power feeding)

•Full outdoor installation, typically on a pole next to the ODU’s

•Cable connects between HSSU-10 and ODU-HE

Airmux 200 Slide 11

HSS Configuration

MasterClient

Client

Airmux 200 Slide 12

Point-to-Multipoint vs. Multi Point-to-Point

PtMP M-PtP (RADWIN)

Bandwidth Shared Guaranteed BW per user

Delay 30-100msec 3msec

QoS Limited Strictly supported

Range Limited (sectorial antenna)

Longer (directional antenna)

Mixed services No flexibility. Ethernet only, same

channel BW to all users

Full flexibility.Each user gets the required

service (Ethernet, E1/T1s or a mix) with the relevant

channel BW

Robustness Limited No single point of failure

Entry Cost Medium-High Low, linear CAPEX

Airmux 200 Slide 13

Applications – Enterprise Connectivity

Airmux 200 Slide 14

Applications – WiFi Backhaul

Airmux 200 Slide 15

Applications – Video Surveillance

Airmux 200 Slide 16

•Typical Applications

• Airmux-200 (HE): 8 x E1

• Airmux-200 (HE): 1 + 1: TDM support

• Airmux-200 (HE): 1 + 1: Ethernet support

• Airmux-200 (HE): Link Aggregation Acc. to 802.3af

• Airmux-200 using IDU-R: TDM Back-Up Application

1+1 Airmux-200– Applications (continue)

Airmux 200 Slide 17

•Highlights

•High Availability ≥ 99.999% (back-up)

•High Capacity (Link Aggregation)

•Installation Guidelines

•Master/Slave Collocated site is synchronized –

HSS (Hub Site Sync) feature

•Alternate / Adjacent channels can be used

1+1 With Airmux-200 - Applications

Airmux 200 Slide 18

Airmux-200 (HE): 8 x E1

IDU

ODU

IDU-C

HSS Cable Sync

• Bipolar antenna is optional

• Collocated site is synchronized – HSS (Hub Site Sync) feature

• Alternate / Adjacent channels can be used

• Bipolar antenna is optional

• Collocated site is synchronized – HSS (Hub Site Sync) feature

• Alternate / Adjacent channels can be used

Airmux 200 Slide 19

Airmux-200 (HE): 1 + 1: TDM support

IDU

ODU

Site ASite B

Site C

•Options: Site B = Site C or Site B ≠ Site C

•External TDM Switch is required based on BER ≤ 1e-6 switching

Airmux 200 Slide 20

Airmux-200 (HE): 1 + 1: Ethernet support

IDU

ODU

•Options: Site B = Site C or Site B ≠ Site C

•Switching is based on external switch supporting Spanning Tree (ST) feature for redundancy

•Reference – Cisco and 3COM Spanning Tree supported switches

Site ASite B

Site C

Airmux 200 Slide 21

Airmux-200 (HE): Link Aggregation Acc. to 802.3ad (LACP)

IDU

ODU

•Options: Site B = Site C or Site B ≠ Site C

•Aggregation is based on external switch supporting “link aggregation Protocol” 802.3ad

•Reference – Cisco LACP supported switches

•Enables to multiple capacity n x 18Mbps (net throughput)

Site A

Site B

Airmux 200 Slide 22

IDU-R

• New IDU that provides backup link for E1/T1 connections

• Maintains fully operation link at all times

• In case of failure or primary connection, automatically switches to backup (14uS)

• The air-interface can be defined as primary or backup link

• Operates with all WinLink 1000 outdoor units portfolio

• Ordering Options: WL1000-IDU-R-E1 and WL1000-IDU-R-T1

Airmux 200 Slide 24

Summary

• Symmetrical superior to Asymmetrical transmission

• HE radios offer more power and stability

• HSS offers new flexibility for co-location

• HSS also introduces 1+1 back-up

• HSS supports link aggregation for higher speed

• IDU-R can support T1 back-up and 1+1 redundancy

• PoE 8 affords space-saving convenience and cost reduction over stand alone solutions

Airmux 200 Slide 25

For your attention

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