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Qulsar's Qg 2 is a highly accurate multi-sync gateway equipped with the IEEE 1588 PTP grand master function and boundary clock function in a compact enclosure. Since it supports multiple synchronization sources, it provides reliable sync signals regardless of location. It supports the stringent timing requirements of LTE including LTE-A and LTE-TDD architecture and supports the frequency / phase profile of ITU-T G.8265 and G.8275. We also began supporting IEEE PC 37.238 as a power system profile.
In a distributed cluster synchronization architecture such as a small cell or remote radio head (RRH), timing resources must be brought close to the network edge to meet phase and frequency accuracy requirements. Qg 2 is designed by ATPS (Assisted Partial Timing Support) so that next generation networks can supply accurate phase and frequency to small cells. Also, in order to realize flexible scalability against the rapid growth of the network, it is possible to support up to 450 PTP slaves in 128 packets / second unicast mode.
Applications · Synchronization platform designed for small cell clusters, C-RAN, edge applications · PTP edge ground master for smart grid transmission and power equipment · Gateway clock for industrial IoT applications
Benefits · Easily realize ubiquitous deployment · Contributing to reducing TCO · Scalable slave capacity · Low power consumption · High performance PTP clock installed · Simple and high manageability · Gateway clock
Features · Multiple holdover options · Supports IEEE 1588-2008 Grand Master · Telecom BC function · ITU-T G.8265.1 Frequency, ITU-T G.8275.1 and G.8275.2 Time & Phase · ITU-T G.8272 and G. 8273.2 (T-BC) · IEEE PC 37.238 Power profile · Supports 1 step and 2 step clock · PoE and -48 V DC option · Remote & management (SNMP, XML & CLI)
Sync interface · 1 × GNSS L1 antenna (SMA); 50 Ω impedance · 1 × 1 PPS in / out (BNC) · 1 × integrated programmable frequency output (BNC) - 10 MHz, 1.544 MHz, 2.048 MHz · 1 × Time of Day (ToD) + 1 PPS T / 1000Base-X with Synchronous (RJ45 / RS442) - ToD format: ASCII (YYYY-MM-DD HH: MM: SS), NMEA, or China Mobile Binary format · 2x IEEE 1588 PTP 100Base-TX, 1000Base- Ethernet (RJ 45 & SFP)
PTP IEEE 1588-2008 profile · ITU-T G.8265.1 frequency delivery profile · ITU-T G.8275.1 & G.8275.2 time / phase delivery profile · Default profile · PTP: L2: Ethernet; L3: UDP IPv4 / IPv6
Synchronous Ethernet · Phase holdover by PTP while GNSS is stopped · Ethernet Synchronization Message Channel (ESMC) · Electrical, Optical, Ethernet interface supported
GNSS · GPS + Beidou / GLONASS / Galileo (ready) · G.8272 phase accuracy (± 100 nsec from UTC)
Scalability · Unicast mode 32/128/256/450 [license option] slave @ 128 PPS
Holdover performance Grade Oscillator type 1.5 μs 5 μs Frequency 16 ppb Standard OCXO 4 hrs 10 hrs 1 week Superior Super 0 CS 0 8 hrs 15+ hrs 1 month * Approximate value when assuming that the device has operated for a long time in the normal operation mode in a constant temperature environment
Software function · DHCP client, Telnet server, SSH server, serial terminal, remote firmware update
management · 1 x management (100 Base - TX / 1000 Base - T RJ 45) · Web, XML, SNMP v2 / v3 · Remote (Telnet / SSH / Ethernet) · 1x mini USB Console - CLI local (Craft Interface)
LEDs · Power status, GNSS acquisition & synchronization status
Power supply unit · Unit: PoE, 28-40 VAC or 36-60 VDC · Power consumption: Variable according to holdover grade Normally from 9 W to 22 W
Operating specification · Operating temperature: 0 ° C to 50 ° C (optional -40 ° C to 65 ° C) · Storage temperature: -40 ° C to 70 ° C · 6/6 RoHS and WEEE compliance · Size: 218 mm (W) x 159 mm (D ) x 44 mm (H)
EMC standard · FCC Part 15 (Class A) Storage temperature: -40 ° C to 70 ° C · EN 55022 (Class A) · Safety EN 60960-1 · EN 300386 Telecommunications Network Equipment (EMC)
EMC immunity · EN 55024 (Class A) · EN-61000-4-2 ESD · EB-61000-4-3 Radiated Immunity · EN-61000-4-4 EFT · EN-61000-4-5 Surge · EN-61000-4- 6 Low Frequency Common Immunity · EN-61000-3-3 Voltage Fluctuations / Flicker · EN-61000-4-11 Voltage Dips and Sags