PTP&NTP Master Clock DTS201B


Basic Informations

▷ IEEE-1588 PTP Master, supports 128 slaves

▷ Time accuracy (tracking to GPS): RMS30 ns, 99%<60ns

▷ Time of day accurcy(reference to GNSS): 20ns

▷ Time stamp accuracy: 8ns

▷ NTP response more than 55k per second

▷ Built-in BeiDou+GPS standard

▷ Built-in BeiDou+GPS+GLONASS(Optional)

▷ Support 1588 PTP 2008、NTPV1-V4

▷ Built-in high-stability OCXO, holdover better than 1.5us/4 hours

Product description

DTS201B Master Clock
PTP master clock is designed for wireless networks that need phase synchronization. DTS201B provides continuously available UTC traceability time for phase synchronization, which is a prerequisite for LTE-Advanced networks and services.
DTS201B Adopt industry-leading GNSS solution and punctual technology.。
DTS201B can work in harsh environmental conditions, support indoor and outdoor deployment, and has a wide working temperature range.

Small cell Phase synchronization
While designing DTS201B for small stations, it also considers and meets the time synchronization requirements of Acer stations.
PTP DTS201B It can be used in small station networks that need phase synchronization. The most effective way to realize the phase synchronization of LTE and LTE-A services is to deploy the master clock near eNodeB to ensure the phase synchronization of 1.5 us.
By reducing the number of network hops between the time server and the LTE base station, the risk of the impact of network reconfiguration and load changes on ieee-1588 signal quality can be reduced. DTS201B perfectly adapts to this strategy because of its small volume, low cost, high precision, excellent reliability and adaptability.

LTE-A Ideal for service
CoMP,eICIC,eMBMS and Carrier Aggregation service requires re authentication and redesign of synchronization network to support phase synchronization function. Failure to comply with the phase synchronization specification will lead to service degradation or failure of LTE-A equipment, and reduce the bandwidth, resulting in potential service interruption.
By designing the current network to support phase synchronization, the pause time of LTE-A service can be reduced. Adding DTS201B can easily add phase synchronization to those synchronization networks. In view of its low cost, it can join any network node that needs to support strict phase synchronization function, so as to bring the best performance for LTE-A service.
High reliability ensures that DTS201B can be deployed in boundary or aggregation networks.

Specification Parameters

Functional interface



Output 1588 PTP 2008 V2, NTP V1-V4, 3x PPS/ToD(RS232), 1x PPS/ToD(RS422)
Network port 1x Mgmt RJ45 、1x 1G SFP 、1x 1G RJ45
GNSS Antenna interface

1x SMA

Support agreement IEEE-1588 (PTP), NTPv4, SyncE, IPv4, IPv6, SNMP,
Network management


Time of day accuracy 20ns (1-sigma) reference GNSS

Time stamp accuracy

<8 ns rms

Frequency accuracy

1.16x10-12 (24 hourly average)


<1x10-10 /24 hours

Time accuracy(Tracking GPS)

RMS 30ns;99%<60ns


±1.5μs/4 hours (7 days after locking)
Power waste 5W average, 10W maximum

Physical interface

Overall dimension
482*195*44(L x W x H mm)
Weight 2.5kg
Dual DC power supply -36VDC to -72VDC or  220AC
Current consumption 330mA (Max)

Environmental parameters

Working temperature
-40°C to +85°C
5%-95% RH No condensation(+60°C)
Storage temperature
-55°C to +105°C

Regulations and standards

Time synchronization ITU………………………….G.8265.x, G.8275.x (PRTC/T-GM)
IEEE……………………………..……………..…PTP (IEEE 1588v2)
IETF………………………………………………..NTPv4 (RFC5905)

Product size
Equipment size:482mm ×195mm × 44 mm (D * W * H)