VALIANT VCL-2156, PTP IEEE-1588v2

COMMUNICATIONS
Grandmaster with NTP SERVER

Product Overview
The VCL-2156, PTP IEEE-1588v2 Grandmaster with NTP SERVER is designed to provide PTP, NTP and ITU-T G.811 Primary Reference Clock that is locked
to a GPS / GNSS Reference to provide time synchronization to private networks such as Railways and Metro (ticketing and platform) networks, Airports
and Air-Traffic Control facilities, Electric Sub-Stations, Power Distribution and Transmission companies, Oil and Gas Utilities, ISPs and Cable TV networks
as well as to Campus networks that are required to maintain a complete isolation from public networks for security reasons. It may be also used by 2G,
3G and LTE service providers which provide a time of day reference to their customers over their wireless networks.
VCL-2156 locks to a GPS / GNSS reference to provide an NTP time reference on up to 4+1, 10/100BaseT Ethernet Ports which can be segregated to serve
separate classes of assets in the network.

Front View Back View

Features and Highlights: The VCL-2156 is equipped with a highly NTP Peering
accurate, low-noise OCXO to provide a high NTP peering is a method to allow multiple NTP
! IEEE 1588 v2 Precision Time Protocol stability, ITU-T G.812, Type II, III compliant servers to share time. Having more than one
Grandmaster holdover clock with better than 12μs accuracy reference server configured increases reliability
! PTP Profiles supported: Telecom profile, over a 24 hour (5 milliseconds per year) period of the NTP server.
Power profile in the event of unavailability of the GPS /
In peering mode, in addition to its GPS
! Support up to 128 PTP Clients GLONASS signal or antenna failure, or a
reference, the VCL-2156 can be configured to
! Gigabit Ethernet Interfaces temporary loss of reception in a totally
receive and monitor time from an additional
! 2048MHz, 10MHz, PPS and TOD Output isolated network without any external
Stratum 1 NTP Server available on the network.
! High bandwidth NTP performance reference.
This allows the unit to fall back to its peer source
! Upto 5,000 NTP requests per second VCL-2156 establishes a highly accurate phase- in the event its primary reference becomes
! 40,000 NTP Slaves supported synchronized frequency and time base by unavailable.
! 250,000 SNTP Slaves supported synchronizing to the GPS / GLONASS satellites’
! Multiple NTP Ports - 4+1 x Independent Performance:
atomic clocks to distribute synchronized time
10/100 Mbit/s, RJ-45 Ethernet interfaces over packet based networks including VCL-2156 has 4+1, 10/100 BaseT Industrial
! ITU-T G.811 / Stratum 1 compliant (PR) Ethernet, Carrier Ethernet, IP and IP/MPLS Ethernet Ports that meet and comply with
Primary Reference when locked to GPS Networks. “Power Contact and Lightening Protection” as
! ITU-T G.812 compliant holdover The VCL-2156 provides a wide range of GPS / per Telcordia GR-1089-CORE and EN61000-4-5
! Synchronization of NTP and SNTP clients GLONASS referenced frequency and time Level 3 specifications making it suitable for the
! NTP Peering sources that include 2.048MHz, 10MHz, 1PPS equipment to be installed in harsh industrial
! Leap Second Correction Support frequency as well as an NMEA and NTPv4 time environments which include Electric Sub-
! MD5 authentication for NTP clients reference. Features such as maintaining a Stations, Railway and Metro Networks.
! 1 x IRIG-B Un-Modulated (BNC) distinctly separate IP address for system VCL-2156 is powered by a high performance
! 1 x IRIG-B Modulated (RJ45) management and control, password based microprocessor and a highly precise GPS /
! Meets and comply with Power Contact access, SSH as well as Md5 authentication GLONASS based time receiver that provides a
and Lightening Protection as per ensures operational reliability and security. better than 30 nanosecond accuracy to assure
Telcordia GR-1089-CORE and EN61000- Additional features include remote login and high bandwidth NTP Performance of better than
4-5 Level 3 specifications. remote firmware upgrade (file transfer) 5,000 NTP requests per second / 128 packets per
! Alert notifications via SNMP Traps, capabilities. VCL-2156 includes complete seconds (40,000 NTP Slaves supported ).
SNMPv2, SNMPv3 SNMP monitoring as well as support for
! Concurrent IPv6 and IPv4 operation enterprise directory services for user Monitoring and Management:
! Networking protocols: IPv4, IPv6, SSH, authentication, internal and external logging The configuration can be managed by Graphical
TELNET, FTP, SYSLOG, SCP, TFTP, SCP, and monitoring of alarm and error messages User Management Interface. A text based and
SFTP through Syslog ensures a high level of system menu driven setup utility is also available via
! Secure network management: enable or manageability. Other features include DHCP Telnet or SSH. An optional Graphical User
disable options for installation convenience and support Network Management Interface (NMS) allows
! Double Oven Quartz Oscillators (OCXO) concurrent IPv4/IPv6 support for future multiple systems installed on a networks to be
hold-over network up gradation. monitored and configured from a single or
! DC, or AC, or 1+1 Redundant AC+DC Display : multiple management locations.
Power Supply options. MTBF:
! LCD-display with back-light
! Per MIL-HDBK-217F: ≥ 37 years @ 24C
! Per Telcordia SSR 332, Issue 1: ≥ 42 years @
24C

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Valiant Communications Limited VCL-2156, PTP IEEE-1588v2 Grandmaster with NTP Server

Technical Specifications: Network Time Protocol: Local / Remote Management and Monitoring Ports:
GPS/GNSS Receiver Specifications: ! NTP v2, (RFC 1119), NTP v3 (RFC 1305), NTP v4, ! RS-232C, USB
(RFC 5905), SNTP v3 (RFC 1769), SNTP v4 (RFP ! 10/100BaseT Ethernet RJ45
! 50 Channel GPS Receiver
2030), MD5 Authentication ! 2 x External Alarm Relay Contacts.
! 72 Channel GNSS Receiver
! Upto 5,000 NTP requests per second
! GPS L1 frequency, C/A Code Receiver Local / Remote Communication Options:
! 40,000 NTP Slaves supported
! Tracks up to 12 satellites in GPS only mode (GPS
! 250,000 SNTP Slaves supported ! Telnet / SSH v2 (option to disable clear text
only version)
! Internet Protocol: IPV4 - DHCP (RFC 2131), IPV6 communication to comply with NERC security
! Tracks up to 24 satellites in GNSS mode (GNSS
- DHCPv6 (RFC 3315) requirements)
version)
! NTP Version 4.2.8p7 ! CLI Control Interface (HyperTerminal or VT100)
! Synchronizing Time:
! Time Protocol: TIME (RFC 868) ! SNMPv2, SNMPv3 Traps (MIB provided)
– Acquisition time - Hot Start: 1 sec.
! Daytime Protocol: DAYTIME (RFC 867) ! Syslog, HTTP/HTTPS
– Acquisition time - Warm Start: 28 sec.
! NTP Peering ! TCP, UDP, FTP, SCP, SFTP.
– Acquisition time - Cold Start: 28 sec.
! GPS Signal PTP IEEE 1588 v2 Grandmaster Configuration and Monitoring Software:
– Tracking and Navigation: -162 dBm
! Communication: Unicast, Multicast, Broadcast ! Telnet, SSH, CLI
– Reacquisition -160 dBm
! Synchronization of IEC-61850 Compliant ! NMS - GUI (Graphical User Interface) - Runs on any
– Cold Start -148 dBm
! <100ns Accuracy when locked with GNSS PC operating on Windows 7, Windows 8 or
! Antenna Connector: TNC
(GPS/GLONASS) Windows 10 OS.
! Accuracy Of Time-Pulse Signal referenced to GPS:
! PTP Slave/Client capacity: 8, 16, 32, 64 or 128
± 30ns (raw) Environmental (Equipment):
! User Configurable
! Accuracy Of Time-Pulse Signal referenced to
- 1-step and 2-step Clock Operational: -25C to +65C (Typical: +25C)
GNSS: ± 20ns (raw)
- End-to-End and Peer-to-Peer Cold start -10C
! Accuracy Of Time-Pulse Signal referenced to
! Layer 2 (Ethernet) or Layer 3 (UDP) Storage -40C to +85C
GPS/GNSS: ± 15ns (compensated)
! Configuration message rate 8 pkts/sec, 16 Humidity 95% non-condensing
(Note: with all satellites in view at -130db)
pkts/sec, 32 pkts/sec, 64 pkts/sec, 128 pkts/sec Cooling Convention Cooled.
Holdover (G.812) Synchronization: ! Up to 128 message per second No cooling fans are required.
! 1 x 10/100/1000Base-T (RJ45)
! OCXO (Double Oven-Controlled Crystal Oscillator) Mechanical Specifications:
! Accuracy PTP Profiles:
! H x W x D : 44 mm x 480 mm x 225 mm
– 0.5 ppb per day
! Default Profile ! Weight: 2.3 Kg
– 50 ppb per year
! Power Profile C37.238-2011 ! 19”, 21”, 23” Rack mounting options
Synchronization Inputs: ! Power Profile C37.238-2017
Antenna Specifications:
! Power Profile IEC/IEEE 61850-9-3
! 1 x GPS (TNC)
! Telecom Profile G.8265.1 ! Antenna Type: Active, Wall Mounting
NTP Outputs: ! Telecom Profile G.8275.1-2008 ! Polarization: Right hand circular
! Ethernet Default Profile (Layer 2 multicast) ! Frequency Band: 1575.42 MHz ± 10 MHz
! 4 x 10/100 Mbps NTP Interfaces
! Communication: Unicast, Multicast, Mixed ! Amplifier Gain: 40dB ± 4dB
! 1 x 10/100 Mbps user configurable NTP interface
! Best Master Clock Algorithm (BMCA) ! VSWR: <2.0 Max, 1.0 Typical
PTP, Frequency and Time Outputs: ! Operating temperature: -40C to +85C
Standards & Compliance:
! Out of Band Rejection: > -60dB @ ± 50MHz off
! 1 x IEEE-1588 v2 PTP Grandmaster
! IEC - EMC – Certified to EN 55022: 2005 / CISPR center (1575.42 MHz) frequency
! 1 x 2.048 MHz, 75 Ohms, phase-locked to GPS
32A / EN55022, EN 55024:2005, IEC 61000-4-2, ! Lightening Protection: According to EN61000-4-5
(BNC). ITU-T G.811 compliant.
IEC 60255 / 61000-4-6, 8, 9, IEC 60255-22-6, IEC Level 3.
! 1 x 10 MHz, 50 Ohms, phase-locked to GPS (BNC).
60255-5:2000, IEC 61000-4-8, IEC 61000-4-9, ! LMR400 (or equivalent) Cable Length - 30, 50, 60
ITU-T G.811 compliant.
IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-18, and 90 meters
! 1 x 1 PPS, phase-locked to UTC (BNC)
IEC 60068-2-6, IEC 60068-2-1Ad, IEC 60068-2-
! 1 x ToD (Time-Of-Day) output compliant to NMEA Expansion Chassis
14Ad, IEC 60068-2-2Bd, IEC 60068-2-30, IEC
0183 (Db9)
61850-3 ! Up to 6 User selectable output modules (Add any 4
! 1 x IRIG-B Un-Modulated (BNC-50 Ohms)
! CE – 2001/95/EC, 2006/95/EC, EN60950-1, output cards, in any combination Please specify in
(B000, B002, B003, B004, B005, B006, B007)
EN61000-6-2, EN61000-6-4 order)
! 1 x IRIG-B Modulated (RJ45)
! FCC – FCC Part 15 B Class A: Conducted Emission ! Up to 16 x IRIG-B Un-Modulated outputs (RS422,
(B120, B122, B123, B124, B125, B126, B127)
test on Power Line RS485, RS232)
! 1 x 1 PPM / 1 PPH
! FCC Part 15 B Class A: Radiated Emission >1 GHz ! Up to 16 x IRIG-B Un-Modulated outputs (BNC)
Power Supply: FCC, 6 GHz, on Power Line ! Up to 8 x NMEA-0183 outputs (RJ45)
! Up to 16 x 1 PPS outputs (BNC)
! Dual Redundant Security and Protection:
! Up to 4 x 1 PPS outputs (ST)
! 1+1 AC power (100 to 240V AC, 50/60 Hz)
! Password Protection with password strength
! 1+1 DC 24V, 1+1 DC 48V
monitor
! 1+1 DC 110~220V
! SSH
! AC or DC
! Reverse Polarity Protection Ordering Information:
Power Consumption:
Part Number Description Power
! < 15W at ambient (steady state 24°C) VCL-2156-NTP-yy NTP Server yy: AC or ACR or DC or DCR or
ACDC (1+0, 1+1, AC+DC)
VCL-2156-NTP-PTP-yy NTP Server and IEEE-1588v2 PTP Grandmaster yy: AC or ACR or DC or DCR or
ACDC (1+0, 1+1, AC+DC)
© Copyright: Valiant Communications
Technical specifications are subjects to changes without notice.
Revision 4.9 – November 02, 2020
U.K. U.S.A. INDIA
Valiant Communications (UK) Ltd Valcomm Technologies Inc. Valiant Communications Limited
Central House Rear Office 4000 Ponce de Leon Blvd., 71/1, Shivaji Marg,
124 High Street, Hampton Hill, Suite 470, Coral Gables, New Delhi - 110015,
Middlesex, TW12 1NS, U.K. FL 33146, U.S.A. India

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