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NetAcquire Telemetry-over-IP (TMoIP)

NetAcquire TMoIP reliably distributes any type of telemetry signal across a wide range of IP-based networks with very low latency.

The NetAcquire TMoIP option, added to a NetAcquire real-time processor, reads typical electrical input signals and converts the resulting data streams into Ethernet packets for network transmission. A second NetAcquire server reads the data from the network and reconstitutes the data back into the equivalent electrical output signals at remote locations.

Datasheet/Technical Specs


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Intelligent TMoIP
NetAcquire TMoIP has many advantages over a fixed-mode serial-to-Ethernet device. Now in it’s seventh generation, the NetAcquire product architecture is characterized as “Intelligent TMoIP”. A white paper describing the many additional capabilities available as part of NetAcquire’s Intelligent TMoIP products is available.

Auto-Configuration and Continuous Tuning
NetAcquire TMoIP products automatically adapt to changes in telemetry and network conditions, avoiding the need for operator intervention and improving system uptime.

Telemetry data rates are automatically detected and tracked. Network latency and jitter are continuously measured and adaptive buffering engages to minimize communications latency while ensuring that no data is dropped.

NetAcquire TMoIP also automatically conserves network bandwidth by detecting when telemetry signals are inactive and suppressing generation of unnecessary network packets.

Advanced System Management
An advanced top level system management capability shows information from the endpoints on each side of the TMoIP connection, enabling more effective trouble shooting diagnostics. This top-level viewed includes all key system status parameters including network health.
Operator drill-down capabilities provide useful additional information including channel status, input/output counts, I/O parameters, error counts, and IRIG timing. Serial channel status includes detection and reporting of “no data” or “no clock signal” electrical conditions which are important for rapid diagnosis of external wiring/signal issues. In addition, the actual telemetry data from any input channel can be viewed directly from the management interface.

Reliability and Time Correlation
The data integrity and data timing are maintained throughout the telemetry distribution process. NetAcquire Intelligent TMoIP preserves the timing correlation of the signals from the source side to the destination side. Network transport of IRIG A/B/G timing signals is a standard capability for NetAcquire TMoIP systems. If an IRIG timing signal input is supplied, the IRIG output timing is accurately reconstituted at each destination.

NetAcquire TMoIP uses agile frequency synthesis and tracking capability on all output channels to avoid serial bit slips and data padding that result from input-to-output timing mismatch conditions. Frequency resolution is better than .0001% (1 part-per-million) across telemetry data rates ranging from 100 bps to 100 Mbps, resulting in very low jitter.

Other high-reliability features include automatic reconnection following recovery from network failures, quality of service channel prioritization (makes sure that most important data goes through the network first), and the ability to reconfigure most system properties dynamically without the need for a system re-start.

Network Mesh Flexibility
NetAcquire Intelligent TMoIP design overcomes the restrictions of traditional point-to-point communication products by supporting delivery of telemetry data to multiple endpoints simultaneously. These sophisticated one-to-many and fully dynamic “mesh” configurations are easily supported.

Network Data Consumers
In additional to serial data output, NetAcquire Intelligent TMoIP supports simultaneous delivery of telemetry data directly to PCs and other Ethernet devices.

Integrated telemetry frame synchronization can deliver telemetry data network packets that are frame-aligned for ease-of-processing. NetAcquire offers an extensive suite of tools for network data archiving, decommutation, and data display.

PCM Serial Interface
• Maximum PCM Data Rate: 20, 30, 40, or 100 Mbps†
• Minimum PCM Data Rate: 100 bps
• Channels per Chassis: 2 to 32†, in groups of 2
• Bidirectionality: All channels bidirectional, with different rate rates supported for transmit and receive
• Electrical Signaling: TTL, RS-422, RS-232, ECL, or LVDS†
• PCM Codes: NRZ-L/M/S, R-NRZ-L/M/S, and Biphase-L/M/S
• PCM Code Conversion: Output code can be configured to be different from input code
• Data and Clock Polarity: Normal or Inverted, configurable
• Automatic Baud Rate Detection: Yes
• PCM Input Clocking: External clock input or internal clock recovery
• PCM Output Clocking: Auto-tracking clock output or external clock input
• Output Clock Frequency Resolution: 0.0001%
• Noise Rejection: Configurable noise and signal ringing filtering on input signal
• Analog Bit Synchronization: Any group of channels can have full-function bit synchronization (†
• Site Specific Signals: Field programmable gate array (FPGA) support with remote upgrade

• Number of Network Ports: Two standard, up to four available†
• Interface Type: Gigabit Ethernet twisted pair (1000BASE-T), with fiber optic media option
• Negotiation: Automatic or manual link speed and duplex negotiation
• Network Latency/Jitter Removal: Automatic tuning to support networks with latency/jitter from 1 ms to 1000 ms
• Quality of Service: User-selectable using DSCP (Differentiated Services Codepoint)
• Channel Priorities: 100 levels
• Network Output Protocol: TCP (reliable delivery), UDP (best effort delivery), or both protocols simultaneously
• Simultaneous Network Output Destinations: No restriction on number of destinations with either TCP or UDP
• Network Recovery: Automatic network fault detection and recovery
• Data Quality Reporting: Network data includes header with signal quality and time stamp information
• Load Sharing/Network Path Diversity: Yes
• Bandwidth Saving Mode: Automatic suspend/resume of flat-line PCM channels after configurable number of seconds
• Space Links: Integrated SCPS-TP and Reed-Solomon forward error correction support for high bit error networks
• Ethernet MTU: Configurable
• IPv6 Support: Software upgrade for simultaneous IPv4 and IPv6 available Q4/2014
• 10 Gbps Ethernet Support: Upgrade for 10 Gbps Ethernet available Q4/2014†

• IRIG Timing: IRIG A, B, G (amplitude modulated)
• Other Time Sources: SNTP and IEEE 1588
• Stream-to-Stream Data Skew: Less than 0.1 ms

Operating System and Processor
• Operating System: Hard real-time with latency guarantees
• Main Processor: Intelฎ Core™ i7-3770 3.4 GHz
• RAM: 2 GB with expansion
• Nonvolatile Storage: 1 GB, swappable/removable for device sanitization†
• Open Architecture: Supports additional data processing (encoding, compression, encryption) with optional programming Toolkit

• Security-Hardened Operating System: Yes
• Password Protection: Unlimited number of accounts with password-controlled permission levels
• Strong Authentication: Support for centralized authentication (ActiveDirectory and LDAP) available Q4/2014†
• Auditing: Audit logging of all system configuration changes

User Interface and Diagnostics
• Operator Interface: Web-based HTTP and HTTPS
• Simultaneous Display of Multiple Systems: Yes
• SNMP: Both v1 and v3 supported
• Self Test: Selectable power-up, continuous, and remotely initiated
• Loopback: Configurable loopback and loopout options
• Signal Status Display: “No Data” and “No Clock” indications
• PCM Quick Look Display: Configurable display of PCM data in hex, decimal, binary, etc.
• Bit Error Rate tester: Supported on any/all PCM channels
• Backup: One-step configuration save/restore
• Open Architecture: Create custom user interfaces with LabVIEW™, .NET, C++, or Java with optional programming Toolkit

Frame Synchronization†
• Pattern Length: 0 to 32 bits
• Frame Length: 16 bits to 4 Mbits, configurable
• Pattern Mask Bits: Yes
• Sync Strategy: Configurable Verify/Check and Flywheel count
• Variable Frame Length Support: Yes
• Alternating Frame Sync: Yes
• Automatic Polarity Inversion: Yes
• Burst support: Yes
• Sync Error Tolerance: 0 to 3 bits, configurable
• Sync Slip Window: 0, ฑ1, and ฑ2 bits, configurable

• Common Word Width: 1 to 64 bits, configurable
• Word Width: 1 to 64 bits, configurable for each measurand
• Bit order: MSB or LSB, configurable
• Data Types: Signed/unsigned integer, float, and byte array
• Sub/super commutation: All variants supported
• Embedded streams: Supported, with arbitrary level of nesting

• Data recording/playback†: 2 TB capacity
• CCSDS†: Yes
• Best Source Selection†: Yes

• Frame: Heavy-duty steel
• Rack-Mount: 1U, 2U, or 4U available
• Redundancy: Redundant, swappable power supplies and fans
• Operating temperature : 32 to 122ฐF(0 to 50ฐC)
• Power Requirements: 90-132 VAC or 180-264 VAC with automatic range switching, 250 watts (DC power optional)

†Ordering options


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Related NetAcquire links:
    Serial I/O systems
    Extreme Applications
    NetAcquire I/O architecture
    High Availability
    Custom reprogrammable hardware Interfaces
    Custom developed interfaces


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Last modified 12/2/2016
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