Thunderbolt® PTP
Grandmaster Clock GM100

GM100 Front Panel ElementsGM100 Back Panel Elements
GM100 (Front Panel Elements)
GM100 (Back Panel Elements)
 
KEY FEATURES

  • IEEE-1588 PTP Grandmaster Clock
    – PTP Telecom Profile (G.8275.1)
    – Supports 64 PTP telecom profile clients
  • Outputs: 1588-PTP, PPS, 10MHz
    – 2 x Gigabit ports (1x RJ45 & 1x SFP)
  • Multi GNSS for improved reliability/redundancy (GPS, GLONASS, Beidou and Galileo-ready)
  • 15ns time accuracy relative to GPS reference
  • Holdover of ±1.5us over 4 hours (constant temperature and when locked to GPS for 7 days)
  • PPS and 10MHz outputs
  • IPv4 and IPv6 Support
  • Network Management: SNMP, Web UI, CLI
  • Operating temperature range –40 to +85°C
  • DC (default) and AC power options
  • Small foot print – ½ Rack 1U
  • NEBS Compliant

Product Overview

Trimble’s Thunderbolt® PTP Time Server is a high quality IEEE-1588 PTP Grandmaster clock (GMC) with an integrated Trimble GNSS receiver. The Thunderbolt® PTP GMC is designed and optimized for the deployment in wireless service provider networks to meet the stringent time & phase requirements of 4G LTE and small cell networks.
It provides PTP and Synchronous Ethernet timing protocols. Thunderbolt® PTP GMC uses GNSS (Global Navigation Satellite Systems) signals from GPS, GLONASS, Galileo, QZSS and Beidou as the primary time source for synchronization.
Thunderbolt® PTP can use its built-in, disciplined OCXO (oven controlled crystal oscillator) as autonomous time base for providing several hours of accurate holdover in case that GNSS signals are not available.
Hardware redundancy can be achieved by using two Thunderbolt® PTP Grandmaster clocks.
Thunderbolt® PTP comes in a rack-mountable enclosure; two Thunderbolt® PTP units fit side-by-side in a 1U height 19” rack.

PTP edge Grandmaster designed for small cell, LTE TDD & LTE-A deployments

The Trimble Thunderbolt® PTP Grandmaster Clock is designed for wireless networks requiring phase synchronization. The GM100 provides continuous availability of UTC traceable time for phase synchronization, a must for LTE-Advanced networks and services..
The Thunderbolt PTP GM100 employs industry leading Trimble GNSS solution & holdover technology.
The PTP GM100 can tolerate harsh environmental conditions supporting both indoors & outdoors deployments with extended operating temperature range.

Small cell phase synchronization

The Thunderbolt PTP GM100 is designed with small cells in mind but also it meets Marco base station requirements for synchronization.
The Thunderbolt PTP GM100 supports small cells networks that require phase synchronization. The most efficient way to implement phase synchronization for LTE & LTE-A services is to deply the grandmaster clock close to target eNodeBs to ensure 1.5 us of phase alignment.
By reducing network hops between the grandmaster and eNodeBs, the risk of network re configuration and load variance on IEEE-1588 signal quality is reduced. The Trimble GM100 suits this strategy perfectly due to its small size, low cost, superior accuracy & reliability and flexibility of deployment options

Ideal for LTE A services

CoMP, eICIC, eMBMS and Carrier Aggregation services require that synchronization networks be requalified and redesigned to support phase synchronization. Non-compliance with phase sync specifications will result in low or no service from LTE-A equipment and degraded bandwidth leading to potential service outages.
By engineering current networks to support phase synchronization, LTE A services downtime can be mitigated. Phase synchronization can easily be supported by current sync networks with the GM100 by adding it where needed. Given its low cost, it can be added to any network requiring support for the stringent phase synchronization specifications that LTE-A services require performing at their optimal levels.
NEBS compliance assures that the GM 100 can be deployed in edge and/or aggregation networks.

BENEFITS

  • Low cost reduces CAPEX of LTE TDD, LTE A & small cell projects
  • Extended environmental capabilities enable deployment in difficult locations where small cells and LTE A base stations are deployed
  • Superior holdover performance via Trimble proprietary technology gives extra time error budget for network design and dimensioning

SPECIFICATIONS

General

Inputs……………………….GNSS (GPS, GLONASS, Beidou & Galileo*)
* Hardware ready: a firmware update is required to enable the Galileo constellation
Outputs…………………..Ethernet: 1xGigE RJ45   1xSFP ; 1xPPS BNC
1 x EIA-232 (RS-232) Serial Port
Terminal block to connect dual DC power inputs
Protocols…………………PTP(G.8275.1)
GNSS Antenna …………SMA
Protocols: IEEE-1588 (PTP), IPv4, IPv6, Telnet, SFTP, SSH
Network Management…SNMPv2
HTTP (information viewing only)
User Interfaces:
CLI………………………Monitoring and Management
Web UI………………….Monitoring Only

Performance

Time of day accuracy……………………………..15ns (1-sigma) from UTC
Time stamp accuracy…………………….……<10 ns rms
Frequency accuracy………………………………1.16×10-12 (one day ave.)
Holdover…………………………………………….<1×10-10 /24hrs
Time accuracy
Tracking to PRC………………………………………<15ns (locked)
Holdover………..……………………………………..< ±1.5μs/4hrs (7 days locked)
PTP GM configuration……………………………..64 clients @128 mps
Surveyed accuracy…………………………………..<3m Horizontal, <5m Vertical
Power consumption…………………………………..5W average, 10W maximum

Physical Characteristics

Dimensions in cm (L x W x H): 20.8 x 20 x 4.4 (19” half-rack x 1U)
Weight: < 3Kg (6 lb)

Operating temperature range: -40°C to + 85°C

REGULATORY & STANDARDS

Safety & Environmental
UL / CSA 60950-1
EN: 60950-1, 300019
CE, CISPR22 class A
GR-63; Level 3
NEBS GR-1089 section 2 and 3
ETSI (EN55022/EN55024) EN 300019, Class T3.2
Electrical
EMC, ESD Immunity & susceptibility
FCC Part 15 Class A
EN 300 386, 55022 class A, 55024, 61000-6-2/4
IEEE 1613-1
Telcordia GR-1089
Synchronization
ITU G.8275 (PRTC/T-GM)
IEEE 1588v2
Environmental
RoHS-II & WEEE Compliant

Specifications are subject to change without notice.

 
Need NTP Time Server? Use z250 or THUNDERBOLT® NTP TIME SERVER TS100