VCL-2739, 1588v2 PTP Aware Switch and PTP Transparent Clock


VCL-2739, 1588v2 PTP Aware Switch (PTP Transparent Clock) with Ring Redundancy / HSR (High-availability Seamless Redundancy). The VCL-2739 is a non-blocking wire-speed Ethernet switch with full support for IEEE 1588v2 Precision Time Protocol (PTP) Transparent Clock features.

Data Sheet

Features of IEEE 1588v2 PTP Switch & Clock Synchronization:

  • Transparent Clock (TC) with auto correction update
  • Master and Slave Ordinary Clock (OC) support
  • End-to-end (E2E) or Peer-to-peer (P2P)
  • PTP multicast and unicast message support
  • PTP message transport over IPv4/v6 and IEEE 802.3
  • IEEE 1588v2 PTP packet filtering
  • Dual (Redundant) Power Inputs.


  • Six Ports:
    • 5x10/100/1000Base-T Electrical Ethernet Ports
    • 1x1000Base-SX Optical Fiber Port
  • IEEE 1588 v2 Transparent Clock capable of distributing precision time across the substation network and PRP/HSR boundaries
  • The 1000 Mbps HSR ring allows to transport multiple sampled value streams on the same ring, simplifying network topology
  • IEEE 802.1Q VLAN support for 16 active VLAN groups and the full range of 4096 VLAN Ids
  • VLAN ID on per port or VLAN basis
  • IEEE 802.3x full-duplex flow control and half-duplex back pressure collision control.

Ring Redundancy:

  • HSR (IEC 62439-3) support
  • DLR (EtherNet/IP) support

Switch Performance Capabilities:

  • 10/100/1000Mbps Ethernet switch basic functions: frame buffer management, address look-up table, queue management, MIB counters
  • Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 4096 entry forwarding table with 256K Byte frame buffer
  • Jumbo packet support up to 9000 bytes
  • HSR Zero Packet Loss Ring recovery
  • Rapid spanning tree protocol (RSTP) support for topology management and ring / linear recovery
  • Multiple spanning tree protocol (MSTP) support.

Substation and Industrial Hardened Switch:

  • IEC 61850-3 and IEEE 1613 compliance for operating in electric substation environments
  • Dual source power supply for increased reliability
  • Security event logging for forensic and regulatory auditing and reporting
  • Traffic segregation and prioritization control via IEEE 802.1p and IEEE 802.1Q
  • Hardware alarm contacts for detection of loss of power
  • Simple and powerful web management interface for all configuration functions.


  • IEC 61850 networks power substation automation
  • Industrial Ethernet (Profinet, MODBUS, Ethernet/IP)
  • Supports 3G/4G/5G Ethernet networks
  • Industrial control/automation
  • Test and measurement applications.

Audio Video Bridging (AVB):

  • Compliant with IEEE 802.1BA/AS/Qat/Qav standards
  • Priority queuing, Low latency cut-through mode
  • PTP time synchronization, credit-based traffic shaper
  • Time aware traffic scheduler per port.

Power Supply Specifications:

Input DC voltage 48V DC (nominal)
Range of input voltage 15V to 60V DC Input
Voltage reversal protection Provided
Short circuit protection Provided

Additional Power Supply Options (external adaptor):

  • AC Power - 100 to 240V AC, 50/60 Hz
  • DC Power - 110VDC, 220VDC

Power Consumption:

  • < 20W at ambient (steady state 24°C)

Local / Remote Communication Options:

  • Telnet / SSH (With option to disable clear text communication to comply with NERC security requirements)
  • CLI Control Interface (HyperTerminal or VT100)
  • System log

Management and Control Ports:

  • Serial Management Port - USB Port
  • 10/100 BaseT for remote management

Security and Protection:

  • Password Protection
  • SSH

Command Language:

  • English text commands
  • Graphical User Interface (GUI) - English

MTBF and Equipment MTBF:

  • Per MIL-HDBK-217F: ≥ 15.8 years @ 24C
  • Per Telcordia SSR 332, Issue 1: ≥ 20.2 years @ 24C


  • EMC FCC Part 15 Class 2
  • Operation ETS 300 019 Class 3.2
  • Storage ETS 300 019 Class 1.2
  • Transportation ETS 300 019 Class

Data Sheet

Data Sheet