Transcript Airmux-200 Version 1.500

Airmux-200
Update for August 2007
Agenda
• Symmetrical vs. Asymmetrical
transmission
• HE
• HSS feature
• IDU-R
• 8 port PoE
• Wrap-up
Airmux 200 Slide 2
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 3
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 4
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 5
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 6
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 7
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 8
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 9
HSSU-10
•Passive CLK distribution unit (no
power feeding)
•Full outdoor installation, typically
on a pole next to the ODU’s
•Cable connects between HSSU10 and ODU-HE
Airmux 200 Slide 10
HSS Configuration
Client
Master
Client
Airmux 200 Slide 11
Point-to-Multipoint vs. Multi Pointto-Point
Bandwidth
Delay
QoS
Range
Mixed services
Robustness
Entry Cost
PtMP
M-PtP (RADWIN)
Shared
Guaranteed BW per user
30-100msec
3msec
Limited
Strictly supported
Limited
(sectorial antenna)
Longer
(directional antenna)
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
Limited
No single point of failure
Medium-High
Low, linear CAPEX
Airmux 200 Slide 12
Applications – Enterprise
Connectivity
Airmux 200 Slide 13
Applications – WiFi Backhaul
Airmux 200 Slide 14
Applications – Video
Surveillance
Airmux 200 Slide 15
1+1 Airmux-200– Applications (continue)
• 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
Airmux 200 Slide 16
1+1 With Airmux-200 Applications
•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
Airmux 200 Slide 17
Airmux-200 (HE): 8 x E1
ODU
HSS Cable Sync
IDU
IDU-C
• Bipolar antenna is optional
• Collocated site is synchronized – HSS (Hub Site Sync)
feature
• Alternate / Adjacent channels can be used
Airmux 200 Slide 18
Airmux-200 (HE): 1 + 1: TDM support
ODU
IDU
Site C
Site A
Site B
• Options: Site B = Site C or Site B ≠ Site C
• External TDM Switch is required based on BER ≤ 1e-6
switching
Airmux 200 Slide 19
Airmux-200 (HE): 1 + 1: Ethernet
support
ODU
IDU
Site C
Site A
Site B
• 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
Airmux 200 Slide 20
Airmux-200 (HE): Link Aggregation
Acc. to 802.3ad (LACP)
ODU
IDU
Site B
Site A
• 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)
Airmux 200 Slide 21
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 22
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 24
Thank You
For your attention
Toll Free (USA): 888-785-7393
International: 1-951-694-1173
Email: [email protected]
www.rad.com
Airmux 200 Slide 25