TimeProvider 2700 Datasheet
Contents
1. Synchronization Distribution Architecture for LTE networks Edge Master clocks are PTP synchronization solutions designed for deployment in current networks by locating a grandmaster at or near the edge or by overlaying the network with advanced boundary clocks at planned locations They enable mobile network transitions to include small cells and they support the stringent LTE TDD and LTE A phase and time requirements without overhauling the current backhaul network In frequency synchronized networks LTE FDD as well as 2G 3G Edge Master equipment can be deployed to eliminate timing issues caused by diverse technologies in the backhaul network high packet delay environments and asymmetry inherent in Carrier Ethernet networks The TimeProvider 2700 is a PTP Grandmaster scaled for deployment at or near the edge of the backhaul network instead of closer to the network core Also included in the Edge Master category the TimeProvider 2300 is an advanced PTP boundary clock which can be deployed at select locations in the backhaul network to support precision time distribution to the mobile base stations Together Edge Master products enable synchronization distribution solutions that allow the mobile network to continue to evolve without retrofit of existing backhaul equipment and without changes to current network design and switching routing policies Page 1 of 6 TimeProvider 2700 Meeting Stringent Synchronization Accuracy Require2. lt gt Microsemi DATA SHEET TimeProvider 2700 Edge Grandmaster Clock Key Features e IEEE 1588 2008 Precision Time Protocol Grandmaster e GNSS GPS and GLONASS Primary Reference Time Clock PRTC e Mitigates impact of backhaul noise packet delay variation and asymmetry e Designed to meet the future ITU T G 8275 2 profile for phase synchronization e ITU T G 8275 1 Phase Time Synchronization using forwardable address e Support for 8 to 128 optional PTP clients e Gigabit Ethernet interfaces e Synchronous Ethernet input and output e E1 T1 input or output option e 10 MHz PPS and TOD output e PTP input option e DC or AC power models e OCXO or rubidium holdover oscillator models e Local and remote CLI web interface SNMP traps e TimePictra Synchronization Management System support Key Benefits e Sync solution for the mobile network edge 4G LTE and small cells e No change out or upgrade of network hardware e Mitigates impact of backhaul noise packet delay variation and asymmetry e Synchronization protection for high network availability e Preserves current MPLS network engineering Major Applications e LTE FDD LTE TDD LTE A networks e Ethernet backhaul networks The Microsemi TimeProvider 2700 is an IEEE 1588 Precision Time Protocol PTP Grandmaster scaled and optimized to enable deployment of small cells and meet the stringent phase timing and synchronization r
3. or high PDV the problem can be clock at selected small cell network nodes Protected Synchronization As tighter synchronization becomes more essential to the normal operation of the network Inter Cell Interference Coordination for example the negative impact of losing synchronization becomes more significant The overall Synchronization Distribution Architecture enabled by the TimeProvider 2700 offers cost effective ways to provide protection Referring again to Figure 1 it is likely that a centrally located high capacity PTP grandmaster is already in place to provide frequency synchronization through existing networks Common practice includes deployment at multiple locations allowing each grandmaster to provide backup for the others The edge deployment of grandmasters can leverage ora single AC power input are available Using passive cooling TimeProvider 2700 has no fans this investment by incorporating a PTP client as an input to the TimeProvider 2700 Now operating with a boundary clock function the edge grandmasters can use the backhaul distributed input and extend the holdover period when satellite signals are impaired or lost due to natural accidental or malicious causes antennas knocked down in storms cables damaged jammers and spoofing Rubidium oscillators provide another way using network distributed synchronization to protect synchronization by delivering best i
4. 0950 1 2nd edition e CAN CSA C22 2 No 60950 1 2nd edition e IEC 60950 1 CB Scheme 2nd edition e EN60950 1 2nd edition e CE Mark ENVIRONMENTAL COMPLIANCE e EN300 019 2 3 Class T3 2 e ETSI EN 300 019 2 2 1999 Transportation Class T2 3 e ETSI EN 300 019 2 1 2000 Storage Class T1 2 e RoHS 6 of 6 NETWORK EQUIPMENT BUILDING SYSTEM e NEBS Level 3 GR 1089 MANAGEMENT AND SECURITY e SNMP v2c v3 traps SYSLOG CLI local serial and remote telnet SSH Web interface HTTP HTTPS Multi level user access Ability to disable management interfaces Remote software upgrade and rollback TimePictra Management System purchased separately MODELS AND OPTIONS e TimeProvider 2700 Edge Grandmaster Clock 8 PTP client capacity upgradable Rack mount ears and screws Power supply models AC or DC Oscillator models OCXO or Rubidium SW license options PTP client capacity expansion 16 32 64 or 128 clients PTP Input license required for boundary clock Enable E1 T1 port Enable concurrent GPS and GLONASS Enable PTP Default Profile layer 3 multicast HW accessories not included AC power cords Ethernet optical SFP transceivers GNSS antenna and cable kits o aaa gt m CONSOLE th Lj a D CCOR E Fit i y s Ground 48 VDC Reset Ethernet 2x GigE E1 T1 GNSS Ground Dual Button Mgmt Ports TOD GPS K Feeds Copperor Ports and or AC Craft Optical 10Mhzor GLONASS Power P
5. 4 VAC 50 60 Hz e Power consumption OCXO model with DC supply 20 Watts max 17 Watts typical Rubidium model with DC supply 28 Watts max 20 Watts typical OCXO model with AC supply 43 Watts max 37 Watts typical Rubidium model with AC supply 60 Watts max 43 Watts typical EMC COMPLIANCE FCC Part 15 Class A AS NZS CISPR22 Class A EN55022 Class A KN55022 Class A e ICES 003 Class A VCCI Class A EU 2004 108 EC Electromagnetic Compatibility Directive e EN 300 386 Telecommunications Network Equipment EMC EMC IMMUNITY e EN55024 Class A e KN55024 Class A EN 61000 4 2 ESD e Frequency G 811 frequency accuracy EN 61000 4 3 Radiated Immunity e VLAN 802 1Q 802 1p EN 61000 4 4 EFT HOLDOVER PERFORMANCE EN 61000 4 5 Surge EAE Ph 215 Ph 5 Ph 10 e ees EN 61000 4 6 Low Frequency Common Immunity ocxo 7 heur PAR OTe 12 rows month EN 61000 3 3 Voltage Fluctuations Flicker EN 61000 4 11 Voltage Dips and Sags Rubidium 24 hours 3 days 5 days 5 years Holdover values are approximate and assume operation at constant temperature no initial frequency or phase offset and that the units has been powered on for 2 weeks and locked to GNSS for three consecutive days Non forwardable address alternate BMCA and select BMCA related clock at tributes not currently supported Contact Microsemi for details Page 4 of 6 TimeProvider 2700 Specifications SAFETY COMPLIANCE e UL CSA 6
6. accuracy is affected by both the magnitude of this variation and how effective the client is at removing this noise The TimeProvider 2700 incorporates Microsemi s advanced PTP client technology and a high quality reference oscillator With a GNSS reference advanced algorithms effectively filter this noise allowing the timing signal at the base station to remain within specification Frequency Phase and Time Synchronization Frequency Synchronization TTi A DSA t Leading edge of the pulses are at same pace but not at the Peai identical moment B t fa fg Phase Synchronization i Leading edge of the Pes a pulses are at the A t identical moment l I 1T 1 f 1 hy Spee fa fg Time Synchronization iS S S Leading edge of the Sn A pulses are at the A Zece t identical moment and identical time Page 5 of 6 Microsemi Microsemi Corporate Headquarters One Enterprise Aliso Viejo CA 92656 USA Within the USA 1 800 713 4113 Outside the USA 1 949 380 6100 Sales 1 949 380 6136 Fax 1 949 215 4996 E mail sales support microsemi com 2015 Microsemi Corporation All rights reserved Microsemi and the Microsemi logo are trademarks of Microsemi Corporation All other trademarks and service marks are the property of their respective owners DATA SHEET Microsemi Corporation Nasdaq MSCC offers a comprehensive portfolio of semiconductor and system solutions f
7. ck Reset button RS232 serial console port 57 600 bps DB DATA SHEET SYNCHRONOUS ETHERNET e SyncE can be used as a frequency input and it can be generated as an output as a master e Conforms to relevant sections ITU T G 8261 G 8262 and G 8264 Ethernet Synchronization Message Channel ESMC NETWORK SUPPORT e IPV4 e HTTP HTTPS SSL e ICMP RFC 792 e DHCP Client RFC2131 e EEE 1588 2008 Precision Time Protocol e IEEE 802 1Q 802 1p VLAN filtering tagging Gigabit Ethernet Management port e DSCP Shielded RJ45 100 1000 BaseT Ethernet MECHANICAL 2 Gigabit Ethernet PTP SyncE input and output combo ports support either e Size Height 1 73 in 44 mm 1 RU Shielded RJ45 100 1000 BaseT Ethernet Width 17 24 in 438 mm SFP optical 1000 BaseX Depth 9 30 in 237 mm One combo port is reserved for use as a PTP output master and the other Depth 10 07 in 256 mm including combo port is reserved for use as an optional PTP input client E1 or T1 input or output software configurable shielded RJ45 option G 703 9 G 823 G 824 sync interface compliance Time of Day TOD output port RS422 Data 9600 Baud with pulse per second PPS signal shielded RJ45 10MHz or 1 PPS output port BNC f L1 GNSS input port SMA f 50 Ohm Grounding lugs IEEE 1588 2008 PTP OUTPUT e PTP output client capacity 8 in basic models options for 16 32 64 or 128 clients a ya a e Up to 128 messages per seco
8. e TimeProvider 2700 includes a programmable 10 MHz or 1 PPS BNC port and a PPS TOD RS422 on an RJ45 16 32 64 or 128 PTP clients he field with connection Models with either dual DC TimeProvider 2700 Software synchronization to complement the GNSS License Options Licensed software options for the DATA SHEET TimeProvider 2700 include Greater client capacity PTP client capacity in deployed units can be increased to 16 32 64 or 128 clients allowing network engineers to design for capacity they need today and be protected for increased gt requirements in the future Concurrent GPS and GLONASS The base gt configuration allows the choice of either the GPS or the GLONASS GNSS system for the primary reference signal A software license option enables support for both GPS and GLONASS concurrently providing a greater level of sync network protection against GPS jamming alone PTP Input Employing PTP distributed over the backhaul network provides a backup i to GNSS allowing the oscillator to hold gt accurate timing longer than otherwise possible The PTP client option enabling a boundary clock function includes advanced algorithms that compensate for network asymmetry particularly important for LTE TDD and LTE A networks with tight phase synchronization gt requirements E1 T1 Input Output The E1 T1 software option activates t
9. equirements of 4G LTE networks It is designed for deployment in networks following the approach anticipated in the ITU T G 8275 2 standard proposal With an integrated GNSS receiver GPS or GLONASS the TimeProvider 2700 meets applicable performance requirements of the ITU T G 8272 standard for a Primary Reference Time Clock PRTC It can Edge Master Clocks operate in Synchronous Ethernet networks and supports from 8 to 128 PTP clients The TimeProvider 2700 offers the optional capability to accept PTP input and operate as an advanced boundary clock to complement and backup the GNSS signal Additional output capabilities allow it to support legacy frequency timing applications including E1 T1 10 MHz pulse per second PPS and time of day TOD When deployed with Microsemi s TimePictra Synchronization Management System carriers can also benefit from superior monitoring information and management capabilities The continuing evolution of mobile network technologies has driven the need for increased accuracy and greater availability of timing and synchronization signals At the same time backhaul networks with high packet delay variation present timing jitter variation and asymmetry challenges that are difficult to solve with current solutions Furthermore deploying a GNSS receiver at every location is impractical particularly in many small cell environments Together these issues create the need for a new overall
10. his port for use as either gt an input or output As an input the signal provides a frequency reference to the clock function As an output it can be used for synchronization of equipment using this established timing reference Default Profile Enables layer 3 multicast capabilities for operation in additional network scenarios Deployment of 4G LTE networks and small cells present new technical and economic issues for network planners and engineers A major challenge is to meet stringent timing requirements over gt backhaul paths that were not originally designed to deliver synchronization at the level of accuracy needed Upgrading the backhaul network or deploying GNSS receivers at every base station and small cellis often not possible for technica gt or economic reasons A new type of synchronization equipment is needed the TimeProvider 2700 PTP Grandmaster and its companion product the gt TimeProvider 2300 Boundary clock enable synchronization architectures that are more feasible for many network scenarios Page 3 of 6 TimeProvider 2700 Specifications GNSS RECEIVER e 32 Channel GNSS L1 Receiver e Choice of either GPS 1575 42 MHz or GLONASS 1601 5 MHz software configurable e Connector to Antenna SMA f e Impedance 50 Ohms e Voltage to Antenna 5 VDC INTERFACES 1 AC power model IEC 60320 C14 socket DC power model dual 48 VDC terminal blo
11. icrosemi It is the Buyer s responsibility to independently determine suitability of any products and to test and verify the same The information provided by Microsemi hereunder is provided as is where is and with all faults and the entire risk associated with such information is entirely with the Buyer Microsemi does not grant ex plicitly or implicitly to any party any patent rights licenses or any other IP rights whether with re gard to such information itself or anything described by such information Information provid ed in this document is proprietary to Microsemi and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice DS TimeProvider2700 0051115 900 00511 000G
12. ments Synchronization accuracy requirements have gone from relatively routine frequency specifications 16 ppb on the network side 50 ppb for the air interface to time and phase requirements as tight as 5 usec or even 1 5 usec in some of the proposals under discussion in the standards bodies GNSS GPS receivers co deployed or integrated into the mobile base stations are not always a feasible solution for either technical or economic reasons satellite visibility and antenna deployment costs for example Primary Reference Time Clock performance specified by ITU T 6 8272 meets the accuracy requirements using a GNSS signal GPS or GLONASS as a reference and the IEEE 1588 Precision Time Protocol can deliver the needed accuracy under the right conditions However backhaul networks with many CORE AGGREGATION TimeProvider 5000 Figure 1 Grandmaster at or near the edge hops and asymmetric paths between the grandmaster and the PTP client or networks with multiple transport technologies or those with high packet delay variation due to loading or other issues cannot be sure to consistently meet the required specifications One solution is to upgrade the backhaul network for Synchronous Ethernet and include a PTP Boundary Clock in every transport element This is the approach in ITU T G 8275 1 with full timing on path support from the network This solution requires that every network element between the grandmaster and
13. n class holdover performance phase timing of 1 5 usec for up to 24 hours Often seen as expensive upgrades for individual macro base stations rubidium oscillators in the grandmaster are now more affordable as their cost is amortized across an entire cluster of small cells and co located macro base stations aggregation sites From this location most ee ee The TimeProvider 2700 PTP Grandmaster standard capabilities include either a GPS or GLONASS input allowing it to i fulfill the requirements as a Primary Reference Time Clock as defined by the i ITU T 6 8272 standard for phase and solved By deploying alnagvahced boundary time synchronization as well as G 811 for gt frequency reference The TimeProvider 2700 provides two gigabit Ethernet interfaces in a combo port configuration supporting use of either copper or optical connections Synchronous Ethernet is supported on the input and output ports Models and options are available to support 8 all operating at the full 128 messages per second rate Multicast operations support substantially high client counts Client Capacity can be increased in software license options The TimeProvider 2700 is available with either an OCXO or rubidium oscillator each delivering a different level of phase and frequency holdover performance and allowing operators to better optimize their network SLAs Th
14. nd per unicast client e 1 step and 2 step clock e PTP profiles ITU T G 8265 1 layer 3 unicast IPv4 Telecom 2008 Profile layer 3 unicast pre standard ITU T G 8265 1 IPv4 Ethernet Default Profile layer 2 multicast IEEE 1588 2008 Annex F Default Profile layer 3 multicast IEEE 1588 2008 optional ITU T G 8275 1 Phase Time Profile using forwardable address e VLAN 802 1Q 802 1p Up to 64 unique VLANs e Best Master Clock Algorithm BMCA IEEE 1588 2008 PTP INPUT optional licensed feature e Boundary Clock function e Multi sync function uses both PTP input and a frequency input SyncE or E1 T1 All configurable using reference priority or reference quality e 1 step or 2 step clock e Telecom 2008 Profile layer 3 unicast pre standard ITU T G 8265 1 IPv4 TIME AND FREQUENCY ACCURACY When tracking and locked to GNSS e Time within 100ns of UTC conforms to ITU T G 8272 sec 6 for Primary Reference Time Clock connectors on faceplate e Rack Mounts 19 in and 23 in rack mount options e Weight AC power models 7 6 lbs 3 5 kg DC power models 8 1 lbs 3 7 kg ENVIRONMENTAL e Acoustic Noise Level 0 dBA negligible due to passive cooling e Operating temperature OCXO models 40 C to 65 C cold start at 20 C Rubidium models 5 C to 55 C e Storage temperature 40 C to 70 C e Relative humidity 5 to 95 POWER e DC power models dual power feeds 38 4 to 72 VDC e AC power models 90 26
15. or communications defense amp security aerospace and industrial markets Products include high performance and radiation hardened analog mixed signal integrated circuits FPGAs SoCs and ASICs power management products timing and synchronization devices and precise time solutions setting the world s standard for time voice processing devices RF solutions discrete components security technologies and scalable anti tamper products Power over Ethernet ICs and midspans as well as custom design capabilities and services Microsemi is headquartered in Aliso Viejo Calif and has approximately 3 400 employees globally Learn more at www microsemi com Microsemi makes no warranty representation or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose nor does Microsemi assume any li ability whatsoever arising out of the application or use of any product or circuit The products sold here under and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission critical equipment or applications Any performance specifications are believed to be reliable but are not verified and Buyer must conduct and complete all performance and other testing of the products alone and together with or installed in any end products Buyer shall not rely on any data and performance specifications or parameters provided by M
16. ort 1PPS alternative Port to DC not shown When following deployment guidelines as specified in the user manual DATA SHEET Packet Delay Variation and Asymmetry Timing and synchronization fundamental in all mobile networks is even more critical as small cells are added and networks evolve to LTE TDD and LTE A technologies Backhaul network performance can dramatically impact PTP timing accuracy and thereby the mobile network itself affecting service quality and customer satisfaction The problem is Packet Delay Variation PDV which represents the change in latency from packet to packet Packet delay itself has no effect on the accuracy of the clock constant delay would allow an accurate time offset calculation by the PTP client Variable delay however induces noise in the PTP client s perception of the time at the master which can result in variation in time calculations based on the timestamps in the PTP packets Delay can vary as PTP packets are processed buffered and queued along with the payload traffic through the network switches and routers and it tends to be correlated to network load which can be highly asymmetric in nature As the amount of traffic in the network increases the delay variation is also likely to increase Asymmetry is also introduced by the physical topology of the network as packets travel different and changing paths in the upstream and downstream directions Time
17. the client support Synchronous Ethernet and include a boundary clock function a solution that is not always feasible due to the high cost to upgrade a network or because the mobile carrier employs 3rd party networks for backhaul Further operating at Ethernet Layer 2 G 8275 1 ACCESS Microwave Ae he fe A A A DATA SHEET may obsolete or conflict with the current MPLS network design and provisioning policies of the backhaul network A better solution is to deploy an Edge Master class of product using the approach proposed in G 8275 2 also a gt work in progress at the ITU T Figure 1 depicts a TimeProvider 2700 at or near the eNodeB locations This deployment mitigates or eliminates issues introduced by the performance of the backhaul and therefore makes unnecessary the need to upgrade the entire backhaul network to include boundary clocks in every network element Operating over existing networks at Layer 3 this solution also preserves current MPLS and other network provisioning policies and engineering practices and it is compatible with and leverages previous investment in using the G 8265 1 profile and the pre standard profile for frequency synchronization pi C Small Cell q Aggregation Metro Small Cells TimeProvider 2700 Grandmasters are deployed in locations that ensure timing and synchronization at the base stations are within specification mitiga
18. ting asymmetry and eliminating issues that may result from noisy or 3rd party backhaul The TimeProvider 5000 PTP Grandmaster provides an enhanced level of protection enabling grandmasters at the edge of the network to hold synchronization for longer periods when GNSS signals are impaired Rubidium oscillators either in the base stations or the PTP grandmaster also extend the holdover period In the grandmaster investment in the high grade oscillator is leveraged across multiple base stations The TimePictra Synchronization Management System provides remote management of the synchronization equipment and visibility of all PTP clients Page 2 of 6 TimeProvider 2700 GNSS GPS and GLONASS and Small Cells Integrated GNSS receivers are a viable alternative for timing of macro eNodeB equipment though operations would still be jeopardized by the well publicized vulnerabilities of GNSS systems and so at least for backup Is considered best practice Metro or public access small cells present new challenges for synchronization They require stringent accuracy but are often deployed in locations where adequate GNSS signal reception is not feasible indoors tunnels and urban canyons for example The TimeProvider 2700 is designed for cost effective deployment at the small cell small cell backhaul links can support distribution of PTP timing to small cell base stations Should the small cell backhaul links themselves include many hops
Download Pdf Manuals
Related Search