Bộ nguồn
Sản phẩm (3)
1408-EM3A-ENT - Ethernet Energy Monitor | Allen-Bradley
The Allen-Bradley 1408-EM3A-ENT is an EM3 PowerMonitor 1000 energy monitor designed for industrial energy measurement, load profiling, cost allocation, demand monitoring, and power-quality analysis. It uses a 120/240V AC power supply, includes a 5 A ammeterage rating, and provides serial RS-485 plus Ethernet communications. Supported protocols are DF1 full- and half-duplex, Modbus RTU, EtherNet/IP, and Modbus TCP. Its EM3 functionality monitors energy-management attributes and adds projected demand, actual demand, and power-factor demand information. An energy monitor is an electrical measurement device that records voltage, current, real power, reactive power, apparent power, power factor, and energy consumption. In the industrial automation hierarchy, this product belongs to the power-monitoring and metering class, rather than a semiconductor or passive electronic component. It provides plant-floor information to programmable controllers, energy-management software, and networked control systems. The 1408-EM3A-ENT is useful where an installation requires both local electrical measurement and network communication. Ethernet connectivity allows the monitor to participate in EtherNet/IP or Modbus TCP systems, while RS-485 supports DF1 and Modbus RTU integrations. The reported 5 A rating identifies the monitored current class, while the 120/240V AC supply specification defines its operating power input. Typical deployments include industrial control panels, distribution centers, and motor control centers. The monitor can support real-time energy reporting, demand management, and electrical diagnostics without treating the unit as a general-purpose power-quality analyzer. Its communication capabilities make it suitable for systems that need measured parameters sent to programmable controllers or custom software applications. Installation planning should confirm the voltage rating, current-transformer configuration, communication protocol, network topology, and controller compatibility before energizing the monitor. Because the product is a panel-mounted industrial instrument, wiring, terminal access, grounding, and configuration procedures should follow the applicable Rockwell Automation instructions. Published pricing, exact accuracy details, dimensions, environmental ratings, and full electrical limits were not supplied in the retrieved data and are therefore marked for verification. This page combines the verified manufacturer and distributor product information, communication capabilities, application context, and selection trade-offs. It distinguishes documented Ethernet and serial functionality from unsupported assumptions and avoids presenting missing electrical or mechanical specifications as confirmed values.
MSN3700-CS2RC - 32x100GbE Spectrum-2 Switch | NVIDIA Mellanox
The NVIDIA Mellanox MSN3700-CS2RC is a 1U rack-mountable Open Ethernet switch built on the Spectrum-2 (SN3700C) ASIC, delivering 32 x 100GbE QSFP28 ports, 12.8 Tb/s switching capacity, 8.33 Bpps forwarding rate, and 425 ns cut-through latency in a standard-depth chassis with C2P (front-to-back) airflow, dual AC power supplies, an x86 CPU, and Cumulus Linux pre-installed. A data center Ethernet switch is a Layer 2/Layer 3 networking device that interconnects servers, storage, and uplinks within leaf-spine architectures. Within the network hierarchy, it sits above server NICs and below core/super-spine routers, and the MSN3700-CS2RC belongs to the NVIDIA (formerly Mellanox) Spectrum SN3000 family of purpose-built data center switches spanning 1GbE to 400GbE. Key features include full Layer 3 managed Open Ethernet operation, 32 ports of 100GBase-X QSFP28 connectivity that also break out to 25G/50G speeds, dual redundant hot-swappable AC power supplies (100-264 VAC input), and C2P airflow matching front-to-back rack cooling conventions. The Spectrum-2 silicon enables low-latency forwarding suitable for East-West traffic-heavy modern fabrics. The Spectrum-2 ASIC is the second generation of NVIDIA Spectrum switching silicon, purpose-built for leaf, spine, and super-spine deployment. Its 425 ns latency and high packet rate sustain full line-rate forwarding across all 32 QSFP28 ports, supporting 100GbE storage networks, machine learning cluster fabrics, and virtualized cloud environments where microsecond-scale delay compounds application performance. Typical applications include 100GbE leaf-spine data center fabrics, hyperscale and enterprise top-of-rack aggregation, RoCE/AI cluster back-end networks, and Open Ethernet deployments standardized on Cumulus Linux for automation with Ansible-style tooling. Design consideration: confirm airflow direction (C2P, front-to-back) and AC power provisioning before ordering; NVIDIA explicitly advises checking airflow when selecting SN3000 SKUs, and mismatched airflow causes thermal throttling in hot-aisle containment layouts. This page synthesizes distributor availability, same-platform alternatives, and deployment design notes not found in the NVIDIA datasheet.
PCIE-1730-AE - 32-Ch Isolated + 32-Ch TTL DIO PCIe Card | Advantech
The Advantech PCIE-1730-AE is a 32-channel isolated digital I/O and 32-channel TTL digital I/O card for the PCI Express bus, providing 16 isolated digital inputs, 16 isolated digital outputs with 2,500 VDC isolation protection, and 32 TTL DI/O channels (16 inputs, 16 outputs) on a low-profile add-in card with D-Sub and 20-pin ribbon connectors. A digital I/O (DIO) card is a type of data acquisition (DAQ) interface that translates logic-level signals between an industrial controller and field devices such as sensors, relays, PLCs, and actuators. Within the DAQ hierarchy, digital I/O cards sit alongside analog input/output cards and counter/timer cards as the primary interface layers of a PC-based measurement and control system. Isolated DIO adds optocoupler or magnetic isolation between the field side and the PC side, protecting the host computer from ground loops and high-voltage transients common in factory environments. The PCIE-1730-AE differentiates itself with high-voltage isolation up to 2,500 VDC on isolated channels, high output driving capacity, interrupt handling capability, and digital filters on input channels that prevent false recognition of noisy or chattering signals. Two 20-pin connectors serve the isolated DI/O channels and two more serve the TTL DI/O channels, while a D-type connector provides isolated input and output access in a single cable interface. Architecturally, the card plugs into a PCIe slot and maps its I/O channels into host memory space; the isolated section uses opto-isolated front ends rated at 2,500 VDC, while the TTL section interfaces directly with 5 V/TTL-level logic for bench testing, chip programming, and low-voltage control tasks. Interrupt handling allows event-driven software instead of polling, improving response time in machine-vision and test-stand applications. Typical applications include industrial machine control, factory automation, machine vision edge platforms, relay and contactor switching, and laboratory test systems where noisy field signals must be isolated from the PC. Design consideration: verify that your software stack supports the card under the current operating system before committing to new designs, because this part is fully discontinued; Advantech designated the PCIE-1730-BE as the official replacement. This page synthesizes distributor listings, lifecycle notices, and the official replacement cross-reference - information not consolidated on the manufacturer datasheet alone.