This board is compatible with various peripheral devices such as interlocking devices, buttons, and indicator lights. It distributes LAN signals through its interface platform to realize the conversion and transmission of signals between external devices and control systems. With industrial-grade stability and compatibility, it is widely used in scenarios including industrial automation, process control, power systems, and turbine control, providing support for signal interaction and control of equipment like machine tools, power plants, substations, and turbines.

General Electric designed the 531X307LTBAJG1 as a local area network (LAN) terminal board. It is housed under the 531X family of replacement boards. Drives and exciters across the GE series can accept this card in its cabinet. An interface system between external devices and the controlling drive are provided when the card is installed. Peripheral devices such as interlocks, pushbuttons, and indicator lights can use the board as an interface.

LAN signals are distributed via the interface platform when the 531X307LTBAJG1 board is installed. Eight configurable control input plugs are provided to the drive when the board is installed. Rated input voltages ranging from 2 to 240 V, both AC and DC power, can be accepted by the board. Input voltages sent to the board are converted into 24 VDC logic signals that are accepted by the control board. Signals produced by the board are easily carried through the LAN terminal, the drive control board and the NTB terminal board. The board’s seven integrated control outputs are comprised of low current and low voltage form C relay contact connectors.

Electrical Specifications

Input/Output Parameters

It supports a wide input voltage range of 2–240V AC/DC, which can be converted into 24V DC logic signals compatible with control systems. The board is equipped with 8 configurable control input jacks and 7 integrated control outputs. The output terminals adopt low-current, low-voltage C-type relay contact connectors, with each connector featuring three terminals.

Communication Performance

It supports a 10/100/1000 Mbps Ethernet interface in RJ45 form factor, and is compatible with various mainstream communication protocols including TCP/IP, UDP, ARP, ICMP, and DHCP. It enables high-speed data transmission, meeting the demand for rapid interaction of large volumes of signals in industrial scenarios.

Physical and Structural Parameters

There are discrepancies in dimensions and weight across different sources: common specifications include 53.1mm×30.7mm in size and approximately 0.3kg in weight, while other reported versions have dimensions such as 4.2cm×3.6cm or 16cm×16cm×12cm and weights of 0.8kg or 1.2569kg, which is presumed to result from differences in measurement standards or accessory configurations. The board is furnished with two vertical pin cable connectors (20-pin and 26-pin respectively), two pin connectors, and eight dual-position plug connectors. It also incorporates 15 terminal blocks, each with 3 positions—8 marked as in1–in8 and 7 marked as ot1–ot7—for easy differentiation of signal input and output channels.

Core Component Configuration

To ensure stable operation, the board integrates a rich array of industrial-grade components, including 7 relays, 16 transistors, 15 LED indicators, and 8 integrated circuits. It is also equipped with various resistors (such as diodes and metal film resistors), electrolytic and ceramic capacitors, and thermistors. All components are labeled with reference designators for quick identification during later maintenance and troubleshooting.

Environmental and Installation Characteristics

It has an operating temperature range of -40°C to +85°C and features industrial-grade vibration and shock resistance, making it suitable for harsh industrial field environments. With strong installation compatibility, it can be seamlessly integrated into the cabinets of GE series drives and exciters. After installation, signals can be transmitted smoothly via LAN terminals, drive control boards, and NTB terminal boards, allowing it to quickly integrate into existing control systems without complex debugging.

Core Functional Advantages

• Modular Design: It supports a variety of input voltages and signal types, enabling flexible configuration for different industrial scenarios.
• High Compatibility: It can be seamlessly integrated with a wide range of industrial controllers and devices, reducing costs associated with system upgrades and equipment replacement.
• Easy Operation and Maintenance: Components are clearly marked and the installation process is straightforward. In case of faults, issues can be quickly located via LED indicators and other components, minimizing downtime for maintenance.

Main product ：

ABB: Industrial robot spare parts DSQC series, Bailey INFI 90, IGCT, etc., for example: 5SHY6545L0001 AC10272001R0101 5SXE10-0181,5SHY3545L0009，5SHY3545L0010 3BHB013088R0001 3BHE009681R0101 GVC750BE101, PM866, PM861K01, PM864, PM510V16, PPD512 a10-15000 3BHE040375R1023, PPD113, PP836A, PP865A, PP877, PP881, PP885，etc.,

GE: spare parts such as modules, cards, and drivers. For example: VMIVME-7807, VMIVME-7750, WES532-111, UR6UH, SR469-P5-HI-A20, IS230SRTDH2A, IS220PPDAH1B, IS215UCVEH2A , IC698CPE010，IS200SRTDH2ACB，etc.,

Bently Nevada: 3500/3300/1900 system, Proximitor probe, etc.,for example: 3500/22M,3500/32， 3500/15, 3500/20，3500/42M，1900/27，etc.,

Invensys Foxboro: I/A series of systems, FBM sequence control, ladder logic control, incident recall processing, DAC, input/output signal processing, data communication and processing, such as FCP270 and FCP280，P0904HA，E69F-TI2-S，FBM230/P0926GU，FEM100/P0973CA，etc.,

Invensys Triconex: power module,CPU Module,communication module,Input output module,such as 3008,3009,3721,4351B,3805E,8312,3511,4355X，etc.,

Woodward: SPC position controller, PEAK150 digital controller, such as 8521-0312 UG-10D，9907-149, 9907-162, 9907-164, 9907-167, TG-13 (8516-038), 8440-1713/D，5466-258, 8200-226，etc.,

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Honeywell: all DCS cards, modules, CPUS, such as: CC-MCAR01, CC-PAIH01, CC-PAIH02, CC-PAIH51, CC-PAIX02, CC-PAON01, CC-PCF901, TC-CCR014, TC-PPD011，CC-PCNT02，etc.,

Motorola: MVME162, MVME167, MVME172, MVME177 series, such as MVME5100, MVME5500-0163, VME172PA-652SE，VME162PA-344SE-2G，etc.,

Xycom: I/O, VME board and processor, for example, XVME-530, XVME-674, XVME-957, XVME-976，etc.,

Kollmorgen：Servo drive and motor，such as S72402-NANANA，S62001-550，S20330-SRS，CB06551/PRD-B040SSIB-63，etc.,

Bosch/Rexroth/Indramat: I/O module, PLC controller, driver module，MSK060C-0600-NN-S1-UP1-NNNN，VT2000-52/R900033828，MHD041B-144-PG1-UN，etc.,

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