Mini-GBIC
středa 25. ledna 2012
sobota 21. ledna 2012
neděle 15. ledna 2012
STM-1
The STM-1 (Synchronous Transport Module level-1) is the SDH ITU-T fiber optic network transmission standard. It has a bit rate of 155.52 Mbit/s.
PDH
The Plesiochronous Digital Hierarchy (PDH) is a technology used in telecommunications networks to transport large quantities of data over digital transport equipment such as fibre optic and microwave radio systems.
VC3
VC3
- Virtual concatenation (VC) is a data packaging method that allows more choices over how wide a data stream can be dedicated to a specific bundle of information. The previous standard used contiguous concatenation, which only allowed data in units of 15 Mbit/sec, VC groups them in as few as 2 Mbit/sec bundles. VC-3 specifically allows groups of 34 or 45 Mbit/sec depending on your hardware specifications.
Huawei Optix RTN620
Product Features
- High Bandwidth and Efficiency
Provides 7 MHz to 56 MHz channel bandwidth at air interfaces and supports modulation modes ranging from QPSK to 256QAM.
Supports flexible bandwidth configurations (2xE1 to 75xE1) at air interfaces for TDM services.
Supports flexible throughout configurations (10 Mbit/s to 400 Mbit/s) for native Ethernet services.
- AM
When the radio link quality over the air interface is good (for example, when the weather is good), the RTN 620 uses a higher-order modulation mode to achieve broad bandwidth transmission, curtailing the CAPEX.
When the radio link quality over the air interface is bad (for example, when it is foggy or raining heavily), the RTN 620 adaptively downshifts the modulation mode to improve the anti-interference capability of the radio link, ensuring the transmission quality for VIPs.
Efficient utilization of spectrum resources decreases the OPEX effectively.
- Built-in MADM (Multi-ADM)
Supports multiple RF directions by using one piece of equipment for achieving networking radio.
Supports flexible network topologies (for example, PDH/SDH ring).
Supports full cross-connections in all directions.
Supports fast service provisioning and adjustment.
Decreases the number of DDF subracks, external cables, and IDU service interface units, and requires no external ADM equipment.
- Powerful Ethernet Service-Processing Capability
Supports EoPDH.
Supports a variety of Ethernet services, such as EPL, EVPL, EPLAN, and EVPLAN.
Supports the adding, deleting, and switching of VLAN/QinQ tags.
Supports eight-class QoS (including CAR, CoS, and Shaping), traffic classification based on VLAN ID, IEEE 802.1p, or DSCP, and queue scheduling policies such as SP+WRR.
Supports Ethernet OAM based on IEEE 802.1ag or IEEE 802.3ah.
- Robust Protection Capabilities
Supports 1+1 power supply.
Supports 1+1 backup of the cross-connect units and clock units.
Supports 1+1 protection.
In TDM mode, supports N+1 protection.
In TDM mode, supports sub-network connection protection (SNCP) protection between optical transmission links, between wireless links, and between optical transmission links and wireless links.
In TDM mode, supports SNCP for E1 services, and supports ERPS protection, that is, Hybrid ring, for data services.
Supports both SNCP and 1+1 protection.
Supports Hybrid-TDM ring radio networks.
Supports linear MSP for optical transmission links and STM-l links.
Supports two-fiber bidirectional MSP between STM-4 optical transmission links.
- XPIC
When both the cross-polarization interference cancellation (XPIC) function and the co-channel dual-polarization (CCDP) function are used, the transmission capacity is doubled, under the same channel conditions.
ATPC
The automatic transmit power control (ATPC) technology enables the RTN equipment to automatically adjust the output power of the transmitter within the ATPC control range in accordance with the received signal level (RSL). This technology minimizes interference to neighboring systems and the residual error rate.
- Combination of Optical Fibers with Microwave Transmission
The RTN 620 can be configured as microwave transmission equipment or optical transmission equipment, or a hybrid of both.
End-to-end service configuration and management are provided by using an NMS that manages both radio transmission equipment and optical transmission equipment.
- Easy to Install
The RTN 620 features compact design and light weight.
The RTN 620 can be installed in a cabinet, on a desktop, or on a wall.
The RTN 620, 300 mm deep, can be installed in any standard telecom cabinet.
The RTN 620 can share a cabinet with wireless base station equipment.
- Easy to Maintain
Provides a built-in test system for conducting pseudo-random binary sequence (PRBS) error test at PDH ports.
Supports the monitoring of important radio transmission performance specifications, such as microwave transmit power and RSSI.
Uses the NMS to load software programs and data remotely.
- Abundant Network Management Methods
Uses the iManager U2000 Web LCT to manage an RTN 600 NE locally.
Uses the Web LCT to manage RTN 600 NEs in the same network in a centralized manner.
Uses the iManager U2000/T2000 to manage RTN 600 NEs and Huawei optical transmission equipment in a centralized manner.
Uses simple network management protocol (SNMP) to query alarms and performance events.
Huawei RTN Optix 620
Huawei Optix RTN 605
Huawei Optix RTN 610
Frequency Band Range
7GHz 7.093–7.897 154, 160, 161, 168, 196, 245
8GHz 7.731–8.497 119, 126, 151.614, 208, 266,311.32
11GHz 10.675–11.745 490, 530
13GHz 12.751–13.248 266
15GHz 14.400–15.358 315, 420, 475, 490, 640, 644, 728
18GHz 17.685–19.710 1010, 1008, 1560
23GHz 21.200–23.618 1008, 1200, 1232
26GHz 24.250–26.453 800, 1008
38GHz 37.044–40.105 700, 126
Huawei Transport Network Products - Microwave
RTN 310
RTN 380
RTN 600 - RTN 605, RTN 620
RTN 900 - RTN 905, RTN 910, RTN 950 and RTN 980
NEC pasolink
Details
Bit rate free IDU from 2 x 2 Mbps to 16 x 2 Mbps
Consists of a compact outdoor unit (ODU), an indoor unit (IDU) and an antenna
Several system configurations (1+0, 1+1 (HS), 1+1 (HS/SD), 1+1 (FD))
Optimal configuration according to frequency and transmission capacity
High-speed optional LAN interface (10/100 Base-T(X))
Automatic TX power control
Remote supervision and control of networks, using a personal computer
Easy, simple and quick installation
Frequencies:
7, 8, 13, 15, 18, 23, 26, 28, 32, and 38 GHz
Traffic capacities:
2 x 2 Mbps, 4 x 2 Mbps, 1 x 8 Mbps, 8 x 2 Mbps, 1 x 34 Mbps, 16 x 2 Mbps
Bit rate free IDU from 2 x 2 Mbps to 16 x 2 Mbps
Consists of a compact outdoor unit (ODU), an indoor unit (IDU) and an antenna
Several system configurations (1+0, 1+1 (HS), 1+1 (HS/SD), 1+1 (FD))
Optimal configuration according to frequency and transmission capacity
High-speed optional LAN interface (10/100 Base-T(X))
Automatic TX power control
Remote supervision and control of networks, using a personal computer
Easy, simple and quick installation
Frequencies:
7, 8, 13, 15, 18, 23, 26, 28, 32, and 38 GHz
Traffic capacities:
2 x 2 Mbps, 4 x 2 Mbps, 1 x 8 Mbps, 8 x 2 Mbps, 1 x 34 Mbps, 16 x 2 Mbps
Ceragon IP10 & Ceragon FibreAir IP10 G
Product details
• Up to 2 Gbps of IP traffic on a single radio channel
• Asymmetrical traffic delivery mode to enable higher
download capacities in asymmetric scenarios.
• 3.5 MHz - 56 MHz (ETSI & FCC)
• 6 GHz - 38 GHz licensed bands
• Hitless and Errorless Adaptive Coding &
Modulation (ACM) QPSK - 256 QAM
• Adaptive power and exceptionally high system gain
• Supports XPIC and diversity configurations
• Native Ethernet or Native
2
technology
(native Ethernet and native TDM)
• Integrated Carrier Ethernet switching and TDM
cross-connect
• Network Management System (NMS) with full FCAPS
including End-to-End trails
• Integrated Web based Element Management System (EMS)
• Enhanced user access control for increased security
• Comprehensive Service OA&M tools
• Synchronization using native E1/DS1 trails
• ITU-T G.8262 Synchronous Ethernet including optimized
regenerator for point-to-point
• Precision-Timing-Protocol (e.g IEEE 1588-2008) Optimized
Transport based on low and consistent PDV (Packet delay
variation)
• Full hardware / interface redundancy and network
level resiliency
• Comprehensive QoS mechanisms enabling differentiated
services with SLA assurance.
• Low latency and jitter with packet cut through mechanism
• MEF-9 and MEF-14 certified
• Pay-as-you-grow concept to reduce network costs
• Future capacity growth and additional functionality
enabled with license keys and innovative stackable
nodal solution using the same hardware
Ceragon IP10
IDU (indoor unit) & ODU (outdoor unit) square, round shape
• Up to 2 Gbps of IP traffic on a single radio channel
• Asymmetrical traffic delivery mode to enable higher
download capacities in asymmetric scenarios.
• 3.5 MHz - 56 MHz (ETSI & FCC)
• 6 GHz - 38 GHz licensed bands
• Hitless and Errorless Adaptive Coding &
Modulation (ACM) QPSK - 256 QAM
• Adaptive power and exceptionally high system gain
• Supports XPIC and diversity configurations
• Native Ethernet or Native
2
technology
(native Ethernet and native TDM)
• Integrated Carrier Ethernet switching and TDM
cross-connect
• Network Management System (NMS) with full FCAPS
including End-to-End trails
• Integrated Web based Element Management System (EMS)
• Enhanced user access control for increased security
• Comprehensive Service OA&M tools
• Synchronization using native E1/DS1 trails
• ITU-T G.8262 Synchronous Ethernet including optimized
regenerator for point-to-point
• Precision-Timing-Protocol (e.g IEEE 1588-2008) Optimized
Transport based on low and consistent PDV (Packet delay
variation)
• Full hardware / interface redundancy and network
level resiliency
• Comprehensive QoS mechanisms enabling differentiated
services with SLA assurance.
• Low latency and jitter with packet cut through mechanism
• MEF-9 and MEF-14 certified
• Pay-as-you-grow concept to reduce network costs
• Future capacity growth and additional functionality
enabled with license keys and innovative stackable
nodal solution using the same hardware
Ceragon IP10
IDU (indoor unit) & ODU (outdoor unit) square, round shape
Ceragon FibreAir IP10 G
difference between ceragon IP10 and IP10G is fiberoptic interface on IP10 G type
wireless network, MW link
úterý 3. ledna 2012
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Degrees
'
Minutes
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The three common formats:
DDD° MM' SS.S" Degrees, Minutes and Seconds
DDD° MM.MMM' Degrees and Decimal Minutes
DDD.DDDDD° Decimal Degrees