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TX320s Module
Dual SFP+ Multi-service Platform

All-in-One Optical and Service Test Platform

The dual test port hardware option for the TX300s platform offers a full-featured portable test solution for OTN, SONET/SDH, PDH/DSn, Carrier Ethernet, Fibre Channel and CPRI/OBSAI networks, as well as Synchronization verification tests. This factory-installed hardware option allows the addition of other applications, for example, OTDR, to be installed concurrently in the same test platform.


  • All-in-one multi-service test solution
  • Dual SFP+ ports support Ethernet interface from 100Base-FX to 10GE, SDH from STM-0 to STM-64, SONET from OC-3 to OC-192, Fibre Channel from 1G to 10G, OTN at OTU1, OTU2, OTU1e/2e and CPRI/OBSAI
  • Dual RJ45 ports support 10/100/1000Base-T
  • RJ45/Bantam and BNC ports support PDH/DSn and G.703 64k Codirectional electrical interfaces
  • Port 1 and Port 2 support independent and simultaneous measurements
  • Offers bi-directional Ethernet pass-through monitor test mode



  • Optical SDH/SONET testing for STM-0/1/4/16/64 and OC1/3/12/48/192; including STM-0/1e (STS-1/3) electrical
  • OTN testing for ODU0, ODU Flex, OTU1, OTU2, OTU1e/OTU2e
  • PDH/DSn testing at E1, E2, E3, E4, DS1, DS3
  • G.703 64k Codirectional interface testing
  • Non-intrusive Pulse Mask Analysis at E1, E3 and DS1, DS3 rates
  • Automatic Protection Switching and Service Disruption
  • Round Trip Delay on all interfaces and payload mappings
  • Bi-directional Overhead Monitoring and Byte decoding
  • Tandem Connection Monitoring
  • Jitter and Wander Analysis (E1, E3, DS1, DS3, STM-1o, OC-3)


  • Common Public Radio Interface standard (CPRI): supports all rates from 614.4 Mbps to 9.8304 Gbps
  • Open Base Station Architecture Initiative (OBSAI): supports all rates from 768 Mbps to 6.144 Gbps
  • Unframed, Layer 1 Framed and Layer 2 (REC/BBU and RE/RRH emulation) BER testing with PRBS stress patterns
  • Latency measurements
  • CPRI Bi-directional monitoring mode

SCADA and Teleprotection

  • IEEE C37.94 Testing
    • Terminal and bidirectional pass-through monitor modes
    • 64k to 768k (N: 1 to 12)
    • BERT, Alarms and Round Trip Delay
    • GPS-assisted one-way-latency (asymmetry)
    • MMF and SMF optical interfaces
  • G.703 64k Codirectional Testing
    • Terminal mode
    • BERT, Alarms and Round Trip Delay

Ethernet/Fibre Channel

  • Dual 10GE LAN/WAN, 1000Base-X, 100Base-FX supported by SFP+ ports
  • Dual 10/100/1000Base-T supported by RJ45 ports
  • 1G/2G/4G/8G/10G Fibre Channel support for Storage Area Networks
  • RFC2544 Throughput, latency, frame loss and back to back tests
  • V-SAM test suite compliant with ITU-T Y.1564 standard
  • Q in Q (VLAN stacking), MPLS, MPLS-TP, PBB support
  • RFC6349 V-PERF TCP test suite
  • Bi-directional in-service monitoring with Wireshark on-screen decode
  • One way latency with optional built-in GPS
  • Fully integrated solution for synchronized packet networks
  • Supports IEEE 1588v2/PTP and SyncE/ITU-T G.8261 standards
  • Master Clock and Slave clock emulation
  • IEEE 1588v2/PTP protocol monitoring and decoding
  • IEEE 1588v2/PTP PDV analysis
  • Clock recovery from SyncE or PTP and output to physical port
  • Wander measurement and MTIE/TDEV analysis
  • ESMC SSM generation, monitoring, and decoding

Synchronization Testing

  • Clock Wander and Phase (Time Error) Measurements
  • MTIE/TDEV Wander Analysis
  • Optional built-in chip-scale Atomic Clock
  • GPS receiver for disciplining and time alignment
  • SyncE and IEEE 1588v2 PTP emulation and Wander measurements