T200 series - Time sync Ethernet switches

Time sync
The T200 series contains the following time sync variants:

  • PTP Grand Master (GM) Clock, version 1 (*)
  • PTP Transparent Clock (TC), version 1 and 2
  • PTP Slave Clock (SC), version 1
  • NTP server (*)
  • SNTP client
(*) Available with GPS option. 

The T200 switches with GPS option, PTP-GM or NTP-srv, are based on the Acutime Gold GPS receiver from Trimble as the external time base. The RS422 GPS interface (PPS and NMEA input) is available on the 15 pin connector on the T200 front.  Pulse per Seconds (PPS) output is also available on this interface.

The T200 switches with PTP slave clock or SNTP client support have also a 15 pin connector and an optical 850nm fiber transmitter.  These non-Ethernet interfaces can be used for generation of IRIG-B output, GPS emulation or other serial output formats.
Network redundancy

The T200 series supports network redundancy based on Rapid Spanning Tree Protocol (RSTP) or the Fast Re-configuration of Networks Topology (FRNT) protocol. The FRNT concept of OnTime offers robust and ultra fast re-configuration of the network topology. The FRNT concept eliminates failures caused by network links and/or switches. A redundant ring topology is an excellent choice when high availability and fast re-configuring of the network topology are a required. FRNT recovery time is as fast as 30ms.

Multicast filtering

High multicast load is handled by the IGMP snooping feature of the T200 switch.  IGMP version 1, 2 and 3 are supported.  The bulk join property of IGMP version 3 reduced the IGMP control packet load significantly.  Thus, up to 500 multicast groups can be handled by the T200 switch.

Switch management

Management of the T200 switches is easy and is done by the user in the Windows based IP Configuration tool from OnTime or via SNMP. The IP configuration tool is free and any of the Ethernet ports can be used for this purpose. Thus, no serial port is required for setting the configuration parameter on the T200 switches.

Quality of service

Excellent real time properties are offered through both layer 2 and layer 3 priority support, where high priority packets are served based on strict priority scheduling.  Layer 2 priority is achieved based on the principles defined in IEEE802.1p either based on tag insertion performed by the switch according to used defined VLAN settings (port based VLAN) or on tagged packets generated by the Ethernet end nodes. Layer 3 is based on pre-defined IP ToS settings.

 Environmental requirement
The T200 series fulfills demanding industrial environmental requirements. High MTBF numbers (159.000h at 55C°according to MIL2.17) makes the switch the choice for applications where temperature-, vibration- and insulation properties are critical parameters. The T200 switches are approved for industrial, marine, and railway use.
The power supports redundant power input with polarity protection with a voltage range of [19 .. 60]VDC.

Port combinations

Any combination of copper and fiber ports is possible on the switches in the T200 series. T208Fx means 8 ports in total, where x number of the ports are of 100BASE-FX fiber type and x = [0..8]. The fiber connector is of LC type and both multimode (2km) and single mode (15, 40, 85, 120km) fiber can be supported.  The copper ports are of 10/100BASE RJ45 type.





Install guide »

Operator manual »

IP configuration tool »

T200 private MIB »
Papers:

Quality of Service:
"VoIP drives real time Ethernet" »
Time sync:
"Time synchronization over Ethernet¨- how to implement" »

Time sync:
"PTP Transparent Clock" »
Time sync:
"PTP enabled Network for flight Test Data Acquisition and Recording" »

 

T200 variants

Protocol description
T208Fx-PTP-GM PTP Grand Master Clock version 1, RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.
T208Fx-PTP-TC PTP Transparent Clock version 1 and 2, RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.  
T208Fx-PTP-TCSC PTP Slave Clock version 1 and Slave Clock version 1 and 2, RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.
T208Fx-NTP-srv NTP server, RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.  
T208Fx-SNTP-cli SNTP client, RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.  
R208Fx RSTP, FRNT, SNMP, IGMP snooping, IP configuration tool.  
U208Fx Unmanaged switch  
     
T200 options    
Acutime GPS GPS antenna with in build GPS receiver, GPS cable and antenna mounting kit.  
GPS cable GPS 15meter cable with 15pin male connector.  
GPS mounting kit GPS receiver/antenna mounting kit.