Category Archives: Point to Point Wireless Bridging
Built on the highly reliable, scalable FP80 series from Bridgewave the FP80-3000 is a kit part number which consists of the following.
- 2 x FlexPort “-E” links (Ethernet Only)
- 2 x 1200 Mbps capacity upgrade (link)
- 2 x ODU couplers
This bundle provides carriers and enterprises with a turnkey 3Gbps (2.4 Gbps usable) wireless bridge link with a range of up to 7 miles (depends on geography).
Bridgewave FP80-3000 Performance:
- Ethernet Only: (1) Line Rate Gigabit Ethernet Interfaces, 4 x Pluggable slots
- Up to 1500 Mbps throughput
- Configurable RF channels
- Efficient spectrum utilization using QPSK modulation
- Automatic Transmit Power Control
- Mitigation techniques using Adaptive Rate and Modulation
- AdaptRate (optional)
Bridgewave FP80-3000 is Carrier-Grade:
- Carrier Ethernet services enabled through built-in Gigabit Ethernet Layer-2 switch
- QoS per 802.1p, VLAN per 802.1q, and Jumbo Frame support
- Carrier-grade Network Management
Bridgewave FP80-3000 Reliability:
- Based on proved design – thousands of GigE terminals installed worldwide
- Rigorous HALT/HASS testing
- Up to 99.999% carrier-grade availability
Bridgewave FP80-3000 Ease-of-Use:
- All-outdoor, compact design
- Connects directly to network equipment for native mode transmission
- Rapid & flexible deployment
- Embedded web and SNMP based network management access
Bridgewave FP80-3000 Security:
- Highly secure narrow beamwidth antennas (80 GHz)
- Optional built-in FIPS-certified 256-bit AES Encryption
Ruckus wireless has broken the wireless bridge price/performance barrier with the release of the new Ruckus 7731 Outdoor 802.11n wireless bridge. Each end has Ruckus’s integrated smart antenna array which which offers a 14 dbi gain with 30 degree beam width. While not the strongest antenna in its class and has a bit too wide of a beam width for most (Ruckus says they are working on this) the 7731 does get some pretty good distance. Here are some “real world” numbers that ruckus is boasting.
- Up to 190 Mbps at 1.5 km/1 mi
- Up to 165 Mbps at 3 km/2 mi
- Up to 100 Mbps at 5 km/3 mi
- Up to 50 Mbps at 10 km/6 mi
- 15km maximum range
Aside from the speed the 7731 also has some other cool & handy features to help ease installation like the ability to find its peer automatically, LED based aiming technology, IP65 rating, lightweight design (1.93lbs) and easy 802.3af POE support.
I didn’t find any mention of latency in the 7731 documentation which is an important number when dealing with voice & video. So, while on a conference call with Ruckus yesterday discussing how to effectively use their platform for 3G offload (different post) and asked about the 7731’s latency. The engineer on the call was not sure but this morning I got a detailed explanation and was impressed! Here is the email from the Ruckus engineer…
Right now I am pinging over a 10km setup, I see rtt min/avg/max/mdev = 0.663/0.986/1.557/0.271 ms
The packet transmission time on the link depends on the link condition, traffic patterns (sizes of packets, and burstiness of packets). A typical full size packet takes about 200us on highest rate to a couple of ms on lowest rate. If consider aggregation, the per aggregate time varies even more depending on the aggregation size, link speed…
We passed voice testing with 20km setup in China, as GSM backhaul, achieving good MOS score with an actual voice call.
Notice those latency stats. You are looking at under ~2ms for a 10Km link. These are the numbers we normally see on Motorola PTP 500/600s. I really love the fact that Ruckus is so into their product that they will actually ping across a production link to get you the information you need.
OK, so finally on to the barrier breaking price…The Ruckus 7731 is $2398 for the pair (yes for both!). Assuming their numbers are correct and you are looking at a short hop that is ~$13 per Mbps!
I do concede that this is a wifi based product and you will not see any of the special NLOS features you get from Motorola PTP series point to points but for relatively short LOS hops this bridge rocks!
Motorola is continuously changing their PTP line up to meet new customer demands. The PTP 500 was the first and its little brother the PTP 300 is next. The PTP 500 (105Mbps) edges itself in between the high performance PTP 600 (150 – 300Mbps) and the PTP 400 (45Mbps), while the PTP 300 (25Mbps) replaces the widely deployed PTP 400 Lite.
The new series of radios come with the same great MIMO NLOS technology, reliability and ease of deployment as its siblings but also includes integrated lightning suppression inside the radio and new lower cost!
|PTP 54500||List Price|
|WB2874||PTP 54500 Full Integrated – Link Complete||$13,995.00|
|WB2878||PTP 54500 Full Integrated – End Complete||$7,700.00|
|WB2875||PTP 54500 Full Connectorised – Link Complete
(Not FCC Certified yet)
|WB2879||PTP 54500 Full Connectorised – End Complete
(Not FCC Certified yet)
|PTP 58500||List Price|
|WB2857||PTP 58500 Full Integrated – Link Complete||$13,995.00|
|WB2861||PTP 58500 Full Integrated – End Complete||$7,700.00|
|WB2858||PTP 58500 Full Connectorised – Link Complete||$13,995.00|
|WB2862||PTP 58500 Full Connectorised – End Complete||$7,700.00|
|PTP 58300||List Price|
|WB3146AA||PTP 58300 Integrated – Link Complete||$5,995.00|
|WB3148AA||PTP 58300 Connectorised – Link Complete||$5,995.00|