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DTU-G 9600 021 45101

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The NEC DTU-G 9600 021 45101 is a dedicated Data Terminal Unit (DTU) or communication interface module, likely designed for industrial telemetry or legacy data transmission networks.
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Technical specifications for DTU-G 9600 021 45101

  • Manufacturer:
    NEC
  • Part Number:
    DTU-G 9600 021 45101
  • Product Family:
    NEC
  • Device Type:
    Data Terminal Unit
  • Interface Speed:
    9600 bps
  • Serial Port:
    RS-232
  • Operating Voltage:
    24 VDC
  • Environmental Rating:
    -20°C to +70°C
  • Weight:
    0.22 kg
  • Estimated shipping dimensions:
    2.1x24.4x11.2cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
Description
The NEC DTU-G 9600 021 45101 serves as a critical node in industrial and infrastructure communication networks. As a Data Terminal Unit (DTU), its primary function is to interface between serial field devices  The designation 9600 strongly suggests its baseline synchronous or asynchronous data rate is 9600 bits per second, a classic standard for reliable industrial telemetry. 

In a typical application, the NEC DTU-G 9600 021 45101 would be installed at a remote site, such as a pump station, electrical substation, or environmental monitoring point. It would be responsible for collecting data from local equipment, packaging it according to a specific transmission protocol, and sending it to a central master station or SCADA host. 

The configuration and management of the NEC DTU-G 9600 021 45101 would typically be performed through a serial console or dedicated configuration software. Parameters such as the communication speed (which may be adjustable despite the "9600" in the name), data format, network addresses, and error-checking methods would be set to match the host system. 

For system integrators and maintenance teams, obtaining a functional replacement for the NEC DTU-G 9600 021 45101 requires matching the complete part number. This unit may have been part of a larger NEC telecom or industrial automation solution. 
Alternative Names
DTU-G 2400 021 45101 DTU-G 4800 021 45101 DTU-G 19200 021 45101 DTU-A 9600 021 45101
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary purpose of the NEC DTU-G 9600 021 45101, and what does "9600" signify?
The NEC DTU-G 9600 021 45101 is a Data Terminal Unit (DTU) designed for industrial telemetry and SCADA communications. The "9600" in its model number prominently indicates its standard operational data rate of 9600 bits per second (bps), which was a common and reliable speed for serial data transmission over leased lines or dial-up connections in legacy industrial networks. It acts as a gateway between local serial devices and a wide-area network.
How would I configure the communication parameters on a 9600 021 45101 unit?
Configuration of a legacy unit like the 9600 021 45101 typically involves connecting a terminal or PC (using a serial cable) to its console or configuration port (often RS-232). Using terminal emulation software or manufacturer-specific tools, you would access a command-line interface or menu system to set parameters such as the actual baud rate (which may be adjustable from the nominal 9600 bps), data format (bits, parity, stop bits), station address, and the specific data link protocol (e.g., DNP3, Modbus) it should use. The exact procedure depends on the firmware defined by the "021 45101" variant.
What are the most common points of failure for a unit like the 9600 021 45101, and how can I troubleshoot it?
Common failure points for the 9600 021 45101 include the power supply unit, line interface components (which can be damaged by voltage surges), and the backup battery for memory/clock if present. Initial troubleshooting should check for power LED status, verify the integrity of communication cables and connectors, and use a serial terminal to see if the unit responds to console commands. Loss of communication often points to mismatched baud rate or protocol settings between the 9600 021 45101 and the devices it connects to.
The 9600 021 45101 is obsolete. What should I consider when looking for a modern replacement?
Replacing an obsolete 9600 021 45101 requires a detailed functional analysis. Document its exact role: What serial devices connect to it? What protocol does it speak on both sides? What is the physical network medium (leased line, etc.)? A modern replacement (e.g., a cellular RTU, an industrial protocol gateway, or an Ethernet-to-serial device) must replicate these core functions. Critically, the new device must support the legacy serial protocol used by your field equipment and connect to your existing or upgraded central system. The "021 45101" suffix hints at specific legacy protocol support that must be matched or emulated.