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Airmux-200 Update for August 2007

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24 diapositives · 601 Views · Oct 26, 2012

Airmux-200 Update for August 2007. Agenda. Symmetrical vs. Asymmetrical transmission HE HSS feature IDU-R 8 port PoE Wrap-up. 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

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Airmux-200 Update for August 2007
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  1. Airmux-200 Update for August 2007

  2. Agenda • Symmetrical vs. Asymmetrical transmission • HE • HSS feature • IDU-R • 8 port PoE • Wrap-up

  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

  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

  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

  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

  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

  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.

  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

  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

  11. HSS Configuration Client Master Client

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

  13. Applications – Enterprise Connectivity

  14. Applications – WiFi Backhaul

  15. Applications – Video Surveillance

  16. 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

  17. 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

  18. ODU HSS Cable Sync IDU IDU-C Airmux-200 (HE): 8 x E1 • 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

  19. 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

  20. 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

  21. 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)

  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

  23. 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

  24. Thank You For your attention Toll Free (USA): 888-785-7393International: 1-951-694-1173 Email: wireless@pulsewan.com www.rad.com