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NTS7500-PTP
This product has been discontinued. Please refer to NTS8610 as the replacement. For detailed support, please refer to the notice or contact our product expert or your local agent.
Power-Grade Industrial Grandmaster Clock High precision GNSS module Stratum 1 NTP Server, with Optional PTP hardware-support PTP Version supports IEEE61850-9-3 and IEEEC37.238 Power Profiles Holdover <30 ns/second time-drift when disconnected from GNSS IEC62439-3 Clause 5 Parallel Redundancy Protocol (PRP) Industrial fanless design for -40 to +85°C operation Flexible modular configuration; 2 dedicated Output Module slots 2 x 10/100/1000 Mbps RJ45 and 2 x 100/1000 Mbps Combo SFP slots Embedded NTP/SNTP client and NTP server Support for Legacy Protocols: IRIG-B, BJT, BCD, ST, ST with checksum Redundant power input; low-Voltage DC or high-Voltage AC/D
A Powerful base for NTP and PTP The NTS7500 1U 19’Rack-mount Modular NTP Server with additional Grandmaster Clock feature is a high-powered rugged device that offers good precision and reliability. Suitable for almost any environment and complying with the harshest Industrial EMC conditions, ATOP’s device satisfies all ndustry requirements for Industrial-grade networking timing applications. Its modular architecture provides power-input redundancy and up to 16 different outputs for legacy time Protocols – such as IRIG-B, BCD, ST, ST with checksum.
Stratum 1 NTP Server: NTS7500 embeds a high precision, multi-system GNSS module that supports GPS, GLONASS, BEIDOU and GALILEO GNSS Systems for redundancy. When disconnected from a GNSS time source, its integrated TCXO Oscillator, ensures time drift (1PPS output) does not exceed 30 ppb matching and exceeding the requirements for Power Substations. NTS7500 supports NTPv1/v2/v3/v4 Server and NTP/SNTP Client.
Optional PTP Standard Support: NTS7500 supports Layer-2 and Layer-3 over IPv4 transport; VLAN Tagging; and Multicast, Unicast and Unicast Negotiation in both End-to-End and Peer-to-Peer delay calculation modes. NTS7500 fully supports IEEE C37.238-2017 and IEEE/IEC 61850-9-3 – 2016 Power Profiles.
Industrial and Substation Hardware : Designed to satisfy EMC requirements for Substation-Grade equipment, NTS7500 is designed to function between -40°C and 85°C with passive cooling only, allowing it to avoid the risk of having moving parts breakdown from constant operations. Also, its powerful CPU supports up to 2,000 packets per second, allowing endless applications and a large number of slaves to be supported simultaneously. Redundancy through IEC62439-3 Clause 5 PRP.
Proven design: No standardized testing procedure for PTP devices exists. So ATOP tests its products yearly in ISPCS Plugfests to demonstrate their reliability. NTS7500 was successfully tested in Stockholm 2016, Monterey 2017, Geneva 2018 and Portland 2019. More information available on www.ispcs.org.
Application example This network diagram shows the use of ATOP’s NTS7500 in a substation environment. The GMC is usually located in the office building adjacent to the substation. On one side, it is connected to the GNSS Antenna, with the other side being the Substation backbone connection. Every switch connected to the Grandmaster should be able to handle all Precision time Protocols by hardware, in order not to affect the synchronization quality. Packets are delivered downstream through Boundary or Transparent clocks, where they’ll reach PTP slaves – such as substation IEDs.
Stratum 1 NTP Server: NTS7500 embeds a high precision, multi-system GNSS module that supports GPS, GLONASS, BEIDOU and GALILEO GNSS Systems for redundancy. When disconnected from a GNSS time source, its integrated TCXO Oscillator, ensures time drift (1PPS output) does not exceed 30 ppb matching and exceeding the requirements for Power Substations. NTS7500 supports NTPv1/v2/v3/v4 Server and NTP/SNTP Client.
Optional PTP Standard Support: NTS7500 supports Layer-2 and Layer-3 over IPv4 transport; VLAN Tagging; and Multicast, Unicast and Unicast Negotiation in both End-to-End and Peer-to-Peer delay calculation modes. NTS7500 fully supports IEEE C37.238-2017 and IEEE/IEC 61850-9-3 – 2016 Power Profiles.
Industrial and Substation Hardware : Designed to satisfy EMC requirements for Substation-Grade equipment, NTS7500 is designed to function between -40°C and 85°C with passive cooling only, allowing it to avoid the risk of having moving parts breakdown from constant operations. Also, its powerful CPU supports up to 2,000 packets per second, allowing endless applications and a large number of slaves to be supported simultaneously. Redundancy through IEC62439-3 Clause 5 PRP.
Proven design: No standardized testing procedure for PTP devices exists. So ATOP tests its products yearly in ISPCS Plugfests to demonstrate their reliability. NTS7500 was successfully tested in Stockholm 2016, Monterey 2017, Geneva 2018 and Portland 2019. More information available on www.ispcs.org.
APPLICATION CASE
IEEE1588v2 Precision Time Protocol PTP is the only protocol that allows network time synchronization in the nanosecond-range. Current networking protocols nor legacy protocols allow such a timestamp resolution. IEEE1588-2008 (v2) derives from an earlier version issued by IEEE in 2002 that is not backward compatible. Being so exact about timestamp resolution and timekeeping, IEEE1588v2 timestamps are required to be hardware-generated, since no software could keep up with some stringent requirements, no matter the processing power. PTP is a hierarchical protocol, in which Grandmaster Clocks are directly synchronized with reference clocks such as GNSS or Atomic Clocks, with subsequent layers reaching slaves devices. PTP packets are timestamped with a nanosecond resolution. To achieve such accuracy, PTP works best on Local Area Networks without passing through the internet: latencies and paths would introduce variables latencies that couldn’t be accommodated for in the accumulated delay calculations. PTP packets should always travel the same path during each synchronization phase to preserve such high accuracy. PTP is designed to work on Ethernet transport, Layer-2 (Data-link Layer) or Layer-3 IPv4. And there are two methods to calculate link delay: in End-to-End mode, link delay is calculated from the source of the PTP packet until its destination, while in Peer-to-Peer mode, link delay is calculated as between each network node. In addition, PTP is Internet-capable, with IPv4 in unicast and unicast negotiation modes. Application example This network diagram shows the use of ATOP’s NTS7500 in a substation environment. The GMC is usually located in the office building adjacent to the substation. On one side, it is connected to the GNSS Antenna, with the other side being the Substation backbone connection. Every switch connected to the Grandmaster should be able to handle all Precision time Protocols by hardware, in order not to affect the synchronization quality. Packets are delivered downstream through Boundary or Transparent clocks, where they’ll reach PTP slaves – such as substation IEDs.| Ethernet | |
|---|---|
| Standards | IEEE 802.3 10BaseT IEEE 802.3u 100BaseT(X) IEEE 802.3ab for 1000BaseT(X) IEEE 802.3u for 100Base-FX IEEE 802.3z for 1000Base-X ITU-T G.8261 Synchronous Ethernet (NTS7500-CPU-PTP only) |
| Ports | 2x 10/100/1000BASE-T(X) RJ45 combo ports 2x 100/1000 Base-X SFP Slots combo ports |
| LAN Mode | Dual Subnet or PRP (Parallel Redundancy Protocol) |
| GNSS/Clock Specifications | ||
|---|---|---|
| GNSS Input ports | 1x GNSS Input; 1 x BNC (F) | |
| GNSS Module specific Information | GNSS Supported GNSS Module latency Leap Second Channels | GPS; GLONASS, BEIDOU, Galileo <15ns GNSS/PPS output latency Supported L1 |
| 1PPS Output | 1x PPS Output, Square Wave, 1000ms pulse width, coaxial BNC (F) connector | |
| 10MHz Reference Output | 1x 10MHz Reference Output, Sine Wave, coaxial BNC (F) connector | |
| Oscillator | Entry-level OCXO | |
| Software | ||
|---|---|---|
| Protocols | Network Synchronization | RFC 868 (Time Protocol) RFC 867 (Daytime Protocol) RFC 1119 (NTPv2) Server/ Client RFC 1305 (NTPv3) Server/ Client RFC 5905 (NTPv4) Server/ Client RFC 1769 (SNTPv3) Server/ Client RFC 2030 (SNTPv4) Server/ Client |
| Redundancy | IEC62439-3 clause 5 Parallel Redundancy Protocol (PRP) | |
| Configuration and monitoring | RFC 2616 (HTTP/ HTTPS) RFC 1157 (SNMPv1) RFC 1901-1908 (SNMPv2c) RFC 3411-3418 (SNMPv3) | |
| Supported MIBs | MIB II, IF-MIB, SNMPv2 MIB, BRIDGE-MIB, RMON MIB Group 1,2,3,9, RFC RFC 1157, RFC 1213, RFC 1215, RFC 1493, RFC 1643, RFC 1757, RFC 2011, RFC 2012, RFC 2013, RFC 2233, RFC 2571, RFC 2742, RFC 2819, RFC 2863, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 2674 | |
| Precision Time Protocol NTS7500-CPU-PTP only | Operation Mode | Grandmaster Clock (NTS7500-CPU-PTP only) |
| Supported PTP modes | L2 : Multicast L2 VLAN Tagging: Supported L3 IPv4: Multicast, Unicast, Unicast Negotiation One or two-step clock modes supported End-to-End or Peer-to-Peer supported | |
| Holdover Performance | < 30 ns/second drift when not locked to GNSS, after 24 hours operation total ~1 us/24 hrs drift after locked to GNSS after 24 hours (0.052 us/hr) | |
| PPS Stability | 70 ns when locked to GNSS | |
| PTP Precision | +/- 50 ns error, as per test with third party slave | |
| Supported PTP Profiles | PTP default profile, VLAN support C37.238 -2017 Power Profile IEC/ IEEE61850-9-3 Power Profile(2016) User can modify the detailed PTP settings | |
| Maximum number of Slaves | NTS7500-CPU-PTP can support maximum 2,000 PTPpps (PTP packets per seconds). | |
| Physical Characteristics | |
|---|---|
| Housing | SPCC IP30 Metal Housing |
| Dimension (core unit) (W x H x D) | 440 x 44 x 340 mm (not including screws and rack-mount kit) |
| Weight (core unit) | 5.6 Kg (not including module but module cover only) |
| Installation | 1U Rack-mount, Rack-mount kit included |
| Power inputs (core unit) | Dedicated 2 Power module slots (for redundancy) |
| Output modules (core unit) | Dedicated 2 Output module slots (IRIG-B and Serial freely exchangeable) |
| Environmental Limits | |
|---|---|
| Operating Temperature | -40°C~85°C (-40°F~185°F) / LCM display maximum 0~70 °C |
| Storage Temperature | -40°C~85°C (-40°F~185°F) / LCM display maximum -30~80 °C |
| Ambient Relative Humidity | 5%~95% (Non-condensing) |
| Power Modules | ||
|---|---|---|
| Model name | NTS7X00-AC Power Module | NTS7X00-DC Power Module |
| Power | ||
| Input Voltage | 110-240 AC / 120~240 VDC | 20-60 VDC |
| Input Current (Max) | 110-240 VAC, 0.35 A Max 120-240 VDC, 0.15 A Max | 20-60 VDC , 0.8 A Max |
| Input Power (Max) | Approx. 20W Max | Approx. 20W Max |
| Relay output | 1 Relay (normal open) | 1 Relay (normal open) |
| Physical Characteristics | ||
| Dimension (W x H x D) Weight Installation | 84.5 x 39.5 x 204.8 mm 500 g Cold plug-in (screws provided) | 84.5 x 39.5 x 190.5 mm 200 g Cold plug-in (screws provided) |
| IRIG-B and Serial Output Expansion Modules | |
|---|---|
| Model name | NTS7X00-S1 |
| Interface | |
| Connector | 2 x 12-pin terminal block |
| Ports | 8 x RS-485 |
| Protocols supported | IRIG-B, BCD BJT, ST, ST with Checksum |
| Configuration | Software-selectable by port, through web interface |
| Physical Characteristics | |
| Dimension (W x H x D) Weight Installation | 119.5 x 39.5 x 190.5 mm 350 g Cold plug-in (screws provided) |
| Certification | Standard |
|---|---|
| Safety | CB(IEC)/EN 62368-1 |
| EMC | FCC Part 15, Subpart B, Class A, EN 55032:2012, EN61000-6-4, EN 61000-3-2, EN 61000-3-3, EN 55024, EN 55035, EN61000-6-2 |
| Standard | Item | Test | Value | Level |
|---|---|---|---|---|
| IEC 61000-4-2_2008 | ESD | Contact Discharge Air Discharge | ±4KV ±8KV | 2 3 |
| IEC 61000-4-3_2010 | RS | Enclosure Port | 10(V/m) , 80-1000MHz 3(V/m), 1.4~6GHz | 3 |
| IEC 61000-4-4_2012 | EFT | AC Power Port DC Power Port Signal Port | ±2.0KV @ 5.0KHz ±2.0KV@ 5.0KHz ±1.0KV @ 5.0KHz | 3 3 3 |
| IEC 61000-4-5_2017 | Surge | AC Power Port AC Power Port DC Power Port DC Power Port Signal Port | Line-to Line±1KV Line-to Earth±2KV Line-to Line±0.5KV Line-to Earth±0.5KV Line-to Earth±1.0KV | 3 3 2 2 3 |
| IEC 61000-4-6_2013 | CS | AC Power Port DC Power Port Signal Port | 10V, 150KHz~80MHz, 80%AM 10V, 150KHz~80MHz, 80%AM 10V, 150KHz~80MHz, 80%AM | 3 3 3 |
| IEC 61000-4-8_2009 | PFMF | Enclosure | 100A/m continuous, 1000A/m (3s) | 4 |
| IEC 61000-4-11_2017 | DIP | AC Power Port | 30% Reduction (Voltage Dips) : 25/30 Cycle 60% Reduction (Voltage Dips) : 10/12 Cycle 100% Reduction (Voltage Dips) : 1 Cycle 100% Reduction (Voltage Interruption) : 250/300 Cycle | 3 3 3 3 |
| IEC 61000-4-16 | Main Frequency | DC input or output Signal Port Telecommunication Port | 30 V continuous / 300V 1 | 4 4 4 |
| IEC 61000-4-17 | Ripple | DC input or output | 15% of unit (10% Level 3) | 4 |
| Certification | |
|---|---|
| Shock | MIL-STD-810G Method 516.5 |
| Drop | MIL-STD-810F Method 516.5 |
| Vibration | MIL-STD-810F Method 514.5 C-1 & C-2 |
| RoHS2 | Yes |
| Warranty | 5 Years |
| MTBF | 9.20 Years |
| MODEL NAME | PART NUMBER | Description |
|---|---|---|
| NTS7500-CPU-PTP | 1P1NTS75000001G | IEEE1588v2 PTP Grandmaster and NTP Server core |
| NTS7X00 SERIAL MODULE | 1P1NTS7X000001G | IRIG-B and Serial Output module for NTS7500 - 16-pin Terminal Block |
| NTS7X00-AC POWER MODULE | 1P1NTS7X000002G | T;110~240 VAC;120-240 VDC,0.2A;G |
| NTS7X00-DC POWER MODULE | 1P1NTS7X000003G | T;24-60 VDC;0.8A Max;G |
| Model name | Part Number | Description |
|---|---|---|
| SDR-75-24 | 50500752240001G | DIN RAIL POWER SUPPLY / T;AC 88~264V to 24VDC 3.2A;75W |
| AXFD-1314-0523 | 522AXFD1314001G | SFP Transceiver;155Mbps, Multi-mode;1310nm;2km;-40~85, DDMI |
| AXFD-1314-0553 | 522AXFD1314011G | SSFP Transceiver;155Mbps, Single-mode;1310nm;30km;-40~85, DDMI |
| AXGD-5854-0513 | 522AXGD5854001G | SFP Transceiver, 1250Mbps, 850nm, Multi-mode, 550m, 3.3V, -40~85°C, DDMI |
| AXGD-1354-0523 | 522AXGD1354001G | SFP Transceiver, 1250Mbps, 1310nm, Multi-mode, 2km, 3.3V, -40~85°C, DDMI |
| AXGD-1354-0533 | 522AXGD1354011G | SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 10km, 3.3V, -40~85°C, DDMI |
| AXGD-3354-0593 | 522AXGD3354001G | SFP Transceiver, 1250Mbps, 1310nm, Single-mode, 40km, 3.3V, -40~85°C, DDMI |
| High-Accuracy GNSS Active Antenna | 59901591G | Outdoor Antenna - GL-111 |
| RHG9528-BS | See datasheet | IEC61850-3 Rack-mount Modular Managed Switch & 1588v2 BC/TC |
| EHG9508/12 | See datasheet | IEC61850-3 DIN-Rail Managed Switch & 1588v2 TC |
Datasheet
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| v1.7 | Datasheet EN | 2023-11-01 | 614.26 KB | |
| 14 older versions | ||||
Hardware Installation Guide
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| v1.0 | NTS7500 Series Hardware Installation Guide | 2019-11-05 | 3.89 MB |
Manual
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| v0.7 | NTS7X00 User Manual | 2021-06-07 | 899.72 KB | |
| 2 older versions | ||||
Firmware
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| v6.18 | NTS7500-PTP_Firmware | 2021-02-22 | 11.55 MB | |
| 1 older version | ||||
Utility
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| v5.60 | Management Utility for Windows | 2021-01-18 | 23.65 MB | |
| 1 older version | ||||
Test reports
| VERSION | NAME | TIME | SIZE | DOWNLOAD |
|---|---|---|---|---|
| NTS7500 Declarations of Conformity | 2023-03-15 | 306.89 KB | ||
| v1.0 | NTS7500 Certification CE_FCC | 2020-09-30 | 9.10 MB | |
| v1.0 | NTS7500 Certification Safety (CB) | 2020-09-30 | 1.19 MB |
ATOP Technologies, Inc. | by BlackBear TechHive
