- **Dual-Port Isolated Repeater:** Provides two isolated serial ports for RS-422/RS-485 communication, enabling signal regeneration and isolation between network segments. - **High Isolation Voltage:** 3 kV galvanic isolation between input and output channels ensures protection against ground loops, surges, and electrical noise. - **Wide Baud Rate Support:** Operates across a broad data rate range from **300 bps to 115.2 Kbps**, accommodating both legacy and modern serial communication systems. - **Industrial-Grade Design:** Built for harsh environments with an extended operating temperature range of **-10°C to +70°C**, ensuring stable performance in industrial and field applications. - **Compact and Durable Enclosure:** Housed in a robust **ABS case** with **IP30** protection rating, providing resistance to dust and mechanical stress. - **Flexible Mounting Options:** Supports both **DIN-rail** and **wall-mount** installation, allowing easy integration into control cabinets or equipment panels. - **Low Power Consumption:** Typical power consumption of approximately **2.2 W**, making it energy-efficient for continuous operation. - **Terminal Block Connectivity:** Equipped with **2 × 10-pin terminal blocks** for secure and reliable wiring of serial lines and power connections. - **Signal Integrity Enhancement:** Regenerates and reshapes RS-422/RS-485 signals to extend communication distance and improve data reliability. - **Industrial Reliability:** Designed for continuous operation in automation systems, SCADA networks, and industrial control environments.

Manufacturer: Oring

Category: RS485 DIN Rail IO Modules

- **Multi‑protocol Serial Support:** Provides one configurable serial port supporting RS‑232, RS‑422, or RS‑485 communication modes without requiring manual jumper settings. - **USB Interface:** Compliant with USB 1.1 standard, compatible with USB 2.0 hosts, enabling plug‑and‑play connectivity to PCs, industrial computers, or USB hubs. - **High Electrical Isolation:** 3,000 VDC optical isolation between USB and serial interfaces protects host systems from voltage surges, ground loops, and transient spikes. - **Surge and Transient Protection:** Built‑in high‑speed transient suppressors safeguard data lines against electrical disturbances. - **Bus‑Powered Operation:** Draws power directly from the USB port (self‑powered), eliminating the need for an external power adapter. - **Compact Industrial Design:** IP‑30 rated ABS enclosure with DIN‑rail and wall‑mount options for flexible installation in control cabinets or field environments. - **Wide Temperature Range:** Operates reliably from –10 °C to +70 °C, suitable for harsh industrial conditions. - **Low Power Consumption:** Typical power draw of only 0.65 W, ensuring energy‑efficient operation. - **LED Indicators:** Dedicated Power, TxD, and RxD LEDs provide clear visual status of device operation and data transmission. - **Driver Support:** Compatible with major operating systems including Windows 95/98/ME/2000/XP and Linux. - **Industrial Reliability:** Designed and tested to meet rigorous EMI/EMS and mechanical shock/vibration standards for industrial environments.

Manufacturer: Oring

Category: RS485 DIN Rail IO Modules

- **High‑Gain Analog Input:** One differential analog input channel with programmable gain and voltage range from ±15 mV to ±2.5 V. - **Thermocouple Compatibility:** Direct thermocouple connection with built‑in Cold Junction Compensation (CJC) for accurate temperature measurement. - **Multi‑Range Input:** Supports voltage, current, and thermocouple input types with programmable ranges. - **High Isolation:** 5000 Vrms isolation for analog‑to‑digital channel (2500 Vrms for ND‑6011/D version). - **Digital I/O Integration:** Two open‑collector digital outputs (DO) and one digital input (DI) that can function as an event counter. - **Programmable Alarms:** High/low alarm thresholds with digital output signaling for external alarm devices. - **Watchdog Protection:** Dual watchdog system—internal (150 ms) and host‑programmable (100 ms to 25.5 s)—for system reliability. - **RS‑485 Communication:** Two‑wire serial interface supporting baud rates from 1200 bps to 115.2 kbps. - **Software Calibration:** Fully programmable offset and span calibration without manual adjustment. - **LED Display (D Version):** 5½‑digit LED display for real‑time analog value visualization. - **Ease of Integration:** Compact, software‑configurable, and compatible with NuDAM Administration utilities for setup and monitoring.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **High‑Gain Analog Input:** One differential analog input channel with programmable gain and selectable voltage or current ranges. - **Thermocouple Compatibility:** Direct connection to thermocouples (types J, K, T, E, R, S, B, N, C) with built‑in cold junction compensation (CJC). - **Programmable Input Ranges:** ±15 mV to ±2.5 V or ±20 mA (via external 125 Ω resistor). - **High Resolution:** 16‑bit A/D conversion for precise signal acquisition. - **Isolation:** 2500 Vrms channel‑to‑system isolation (5000 Vrms for non‑display version). - **Digital I/O:** - 2 open‑collector digital outputs (30 V max, 50 mA sink). - 1 digital input channel usable as event counter (up to 50 Hz). - **Alarm Functionality:** Programmable high/low alarm thresholds with digital output signaling. - **Watchdog Protection:** - Internal 150 ms watchdog for module self‑monitoring. - Host‑programmable watchdog (100 ms – 25.5 s) for communication supervision. - **Display:** 5½‑digit LED display for real‑time measurement visualization. - **Ease of Integration:** Software‑configurable parameters, RS‑485 networking, and simple wiring. - **Industrial Durability:** Wide power input range (+10 V – +30 V DC), robust isolation, and noise immunity.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

The **NuDAM‑6012** is a **multi‑function, high‑gain analog input module** designed for industrial data acquisition and remote monitoring applications. It provides a **single differential analog input channel** with programmable voltage ranges and integrated digital I/O for alarm and control functions. The module communicates via a **two‑wire RS‑485 interface**, supporting multi‑drop networking and long‑distance communication. **Primary Features:** - **1 differential analog input channel** with programmable voltage range. - **High‑gain measurement capability** for low‑level signals (±150 mV to ±10 V). - **16‑bit resolution** analog‑to‑digital conversion for precise measurement. - **RS‑485 communication interface** (2‑wire, half‑duplex) with baud rates up to 115.2 kbps. - **5000 Vrms isolation** between analog and communication circuits (2500 Vrms for ND‑6012/D). - **2 open‑collector digital outputs** (50 mA sink current each) for alarms or control. - **1 digital input channel** configurable as a general input or event counter (up to 50 Hz). - **Programmable high/low alarm thresholds** with latch or momentary modes. - **Host and internal watchdog timers** for system reliability and fail‑safe operation. - **LED display (5½‑digit)** on the “D” version for real‑time value indication. - **Software‑configurable parameters** including address, baud rate, input range, and data format. - **Compact, DIN‑rail mountable design** for distributed I/O networks. - **Power supply range:** +10 V DC to +30 V DC.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **High‑Precision Analog Input:** One differential analog input channel with programmable voltage ranges of ±10 V, ±5 V, ±1 V, ±500 mV, or ±150 mV, and current measurement capability of ±20 mA (via external 125 Ω resistor). - **High Resolution and Accuracy:** 16‑bit A/D conversion with ±0.05 % accuracy ensures precise signal acquisition across all ranges. - **Integrated LED Display:** A 5½‑digit LED display provides immediate visual feedback of measured values, simplifying on‑site monitoring and calibration. - **Digital I/O and Alarm Functions:** Two open‑collector digital outputs (50 mA sink current) can serve as alarm outputs or general‑purpose control lines. One digital input channel supports TTL‑level signals or can operate as an event counter up to 50 Hz. - **Programmable Watchdog Timers:** Includes both an internal 150 ms watchdog for device self‑protection and a host‑programmable watchdog (100 ms–25.5 s) for system‑level fault recovery. - **RS‑485 Networking:** Two‑wire RS‑485 interface supporting baud rates from 1,200 bps to 115.2 kbps (firmware A4.00 or later). Enables multi‑drop networking of up to 255 modules over long distances. - **Electrical Isolation:** 2,500 Vrms isolation between analog and system circuits protects against ground loops and electrical noise. - **Compact, Industrial Design:** Operates from a wide 10–30 V DC supply, consuming only 2.0 W. Designed for DIN‑rail or panel mounting in harsh industrial environments. - **Software Configurable:** All parameters—address, baud rate, input range, data format, and alarm thresholds—are programmable via ASCII‑based command set. - **Ease of Integration:** Compatible with ADLINK’s NuDAM Administration Utility and other RS‑485/Modbus‑compatible supervisory systems.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Three RTD Input Channels:** Supports simultaneous measurement on three independent RTD sensors. - **RTD Compatibility:** Accepts Pt‑100, Ni‑100, and Ni‑120 sensors with selectable α coefficients (0.00385 or 0.003916). - **Flexible Wiring:** Configurable for 2‑wire, 3‑wire, or 4‑wire RTD connections to compensate for lead resistance. - **High Accuracy:** ±0.05 % to ±0.1 % of full‑scale range, depending on configuration. - **High Resolution:** 16‑bit A/D conversion for precise temperature readings. - **Sampling Rate:** 10 samples per second per channel. - **Electrical Isolation:** 2500 V RMS isolation between input and communication circuits for noise immunity and safety. - **RS‑485 Communication:** Two‑wire, half‑duplex, multi‑drop network supporting up to 256 addressable modules. - **Programmable Parameters:** Input type, temperature range, baud rate, and data format configurable via ASCII commands. - **Watchdog Protection:** Internal watchdog timer for device self‑recovery and host watchdog for fail‑safe operation. - **Industrial Design:** Compact ABS enclosure with screw‑terminal connectors for easy installation. - **Power Flexibility:** Operates from unregulated +10 V DC to +30 V DC supply. - **Low Power Consumption:** Typical 0.696 W. - **Software Support:** Fully supported by NuDAM Administration Utility for configuration, calibration, and monitoring.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

RS485 1 channel transmitter input module with LED display, Adlink

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Eight Analog Input Channels:** Six differential and two single‑ended inputs for flexible signal connection. - **Wide Input Range:** Programmable voltage ranges of ±10 V, ±5 V, ±1 V, ±500 mV, ±150 mV, and current measurement from 0 to 20 mA (via external 125 Ω resistor). - **High Resolution:** 16‑bit A/D conversion ensures precise signal acquisition. - **Sampling Rate:** 10 samples per second per channel, suitable for slow‑to‑medium dynamic signals. - **Electrical Isolation:** 5000 Vrms isolation between analog input circuitry and communication/power sections for robust noise immunity and protection against ground loops. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex serial interface supporting baud rates from 1200 bps to 115.2 kbps. - **ADAM‑4017 Compatibility:** Fully compatible with ADAM‑4017 command set and wiring, simplifying integration into existing systems. - **Programmable Host Watchdog Timer:** Provides automatic fail‑safe output in case of host communication failure. - **Internal Watchdog:** Monitors module operation and resets automatically upon internal fault detection. - **Compact Industrial Design:** DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for secure wiring. - **Software Configurable:** All parameters—input range, baud rate, data format, and address—are programmable via ASCII commands. - **Ease of Integration:** Operates as a slave device in a multi‑drop RS‑485 network of up to 256 modules.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Multi‑Channel Input:** 8 analog input channels (6 differential, 2 single‑ended) for simultaneous multi‑point temperature or voltage measurement. - **Thermocouple Compatibility:** Supports J, K, T, E, R, S, B, N, and C thermocouple types, covering temperature ranges from ‑270 °C to +2320 °C. - **High‑Resolution Conversion:** 16‑bit A/D resolution ensures precise measurement of low‑level thermoelectric voltages. - **Cold Junction Compensation (CJC):** On‑board CJC sensor with enable/disable control for accurate thermocouple temperature readings. - **Wide Input Range:** Programmable voltage ranges of ±15 mV, ±50 mV, ±100 mV, ±500 mV, ±1 V, and ±2.5 V; current measurement 0–20 mA (via external 125 Ω resistor). - **Electrical Isolation:** 2500 V RMS isolation between input channels and communication circuitry for noise immunity and safety. - **Sampling Rate:** 3 samples per second per channel, suitable for slow‑changing process variables. - **RS‑485 Networking:** Two‑wire, half‑duplex communication supporting up to 128 modules per bus segment and 256 addressable modules in a network. - **Programmable Configuration:** Software‑configurable input type, range, baud rate, and data format via ASCII command set. - **Watchdog Protection:** Internal watchdog timer for device self‑recovery and host watchdog for fail‑safe output control. - **Industrial Design:** Compact, DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for secure wiring. - **ADAM‑4018 Compatibility:** Drop‑in replacement for existing ADAM‑4018 installations, ensuring interoperability.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Single‑Channel Analog Output:** One differential analog output channel configurable for voltage or current output. - **High Resolution:** 12‑bit digital‑to‑analog conversion for fine output granularity. - **Multiple Output Ranges:** - Voltage: 0 – 10 V (unipolar) - Current: 0 – 20 mA or 4 – 20 mA - **High Isolation:** 5000 Vrms optical isolation between communication and analog sections for electrical safety. - **Programmable Slew Rate:** - Voltage: 0.0625 – 64 V/s - Current: 0.125 – 128 mA/s - **High Sampling Rate:** Up to 100 samples/s for dynamic control applications. - **Watchdog Protection:** - Internal watchdog (150 ms) for module self‑recovery. - Host‑programmable watchdog (100 ms – 25.5 s) for system safety. - **Power‑On Safe Value:** User‑configurable default output value on startup or communication loss. - **RS‑485 Communication:** Two‑wire, half‑duplex interface supporting up to 115.2 kbps and 256 addressable modules. - **Compact Industrial Design:** DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors. - **Software Configurable:** Fully programmable via ASCII command set or NuDAM Administration Utility. - **Readback Function:** Internal ADC allows verification of actual analog output for closed‑loop monitoring. - **Noise Immunity:** Internal shielding and coated PCB for EMI/RFI resistance. - **Wide Power Range:** Operates from unregulated +10 V – +30 V DC.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Four Bipolar Analog Output Channels:** Each channel provides a programmable ±10 V output range with 12‑bit resolution. - **Integrated Digital Inputs:** Seven TTL‑level digital input channels for monitoring or triggering external events. - **High Isolation:** 5000 Vrms optical isolation between communication, power, and I/O circuitry ensures electrical safety and noise immunity. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex serial interface supporting up to 115.2 kbps for multi‑drop networking of up to 256 modules. - **Programmable Watchdog Timers:** - **Host Watchdog:** Detects host communication failure and forces outputs to a predefined safe state. - **Internal Watchdog:** Monitors internal microprocessor operation and resets the module in case of malfunction. - **High Accuracy and Stability:** ±0.02 % of full‑scale range (FSR) accuracy with low gain drift (10 ppm FSR/°C). - **Compact Industrial Design:** DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for secure wiring. - **Software Configurable:** All parameters (output range, baud rate, watchdog, safe values) are programmable via ASCII command set. - **Safety and Reliability:** Power‑on safe values, watchdog reset, and galvanic isolation protect both the module and connected equipment.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential communication supporting multi‑drop networking up to 256 addressable modules. - **Digital I/O Configuration:** – 7 digital input channels (TTL compatible) – 8 open‑collector digital output channels - **Input Characteristics:** TTL‑level compatible inputs with internal 10 kΩ pull‑up resistors and 0.5 mA maximum input current. Capable of detecting both active logic signals and passive switch closures. - **Output Characteristics:** Open‑collector transistor outputs capable of sinking up to 50 mA per channel (300 mW maximum dissipation per channel). Suitable for driving relays, LEDs, or solid‑state relays. - **Watchdog Protection:** – Internal 150 ms hardware watchdog for self‑recovery in case of module malfunction. – Host‑programmable watchdog timer (100 ms – 25.5 s) to ensure safe output states if host communication fails. - **Industrial‑Grade Design:** Compact, rugged ABS enclosure with screw‑terminal connectors for reliable field wiring. Designed for DIN‑rail or panel mounting. - **Ease of Integration:** ASCII‑based command/response protocol for simple control via any RS‑485 master or PC host. Compatible with ADLINK’s NuDAM Administration Utility. - **Low Power Consumption:** Typical power usage of 0.336 W from a +10 V – +30 V DC supply. - **Software Configurable:** Address, baud rate, and checksum settings configurable via software commands or hardware default pin.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Eight Isolated Digital Inputs:** Six differential channels and two single‑ended channels with common ground. - **High Isolation Voltage:** 5 kVrms optical isolation between field inputs and communication circuitry for protection against high‑voltage transients and ground loops. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential bus supporting up to 115.2 kbps and 4000 ft (1200 m) transmission distance. - **Industrial‑Grade Design:** Compact ABS enclosure with screw‑terminal connectors for secure wiring and DIN‑rail or panel mounting. - **Programmable Watchdog Timers:** - Internal 150 ms hardware watchdog for self‑recovery. - Host‑programmable watchdog (100 ms – 25.5 s) to ensure safe output states if host communication fails. - **Wide Power Supply Range:** Operates from +10 V DC to +30 V DC unregulated. - **Low Power Consumption:** Typical 0.264 W. - **Noise Immunity:** Opto‑isolation and internal filtering provide high resistance to EMI/RFI interference. - **Simple ASCII Command Protocol:** Uses printable ASCII commands for configuration and data acquisition, compatible with most programming languages. - **Network Scalability:** Up to 128 modules per RS‑485 segment and 256 addressable modules per network using repeaters. - **Fail‑Safe Operation:** Automatic reset and safe‑value output on power failure or communication loss. - **Easy Integration:** Compatible with NuDAM Administration Utility and standard RS‑485 converters (ND‑6520, ND‑6530, ND‑6531).

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **16‑Channel Digital Input:** Supports both dry‑contact and wet‑contact input modes for flexible signal interfacing. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential transmission for long‑distance, noise‑immune communication. - **Multi‑Drop Networking:** Up to 128 modules per RS‑485 segment, expandable to 256 with repeaters. - **Programmable Host Watchdog Timer:** Ensures safe operation by switching outputs to a predefined safe state if host communication fails. - **Internal Watchdog Timer:** Automatically resets the module in case of internal malfunction. - **Low Power Consumption:** Typical power usage of 0.408 W for energy‑efficient operation. - **Simple ASCII Command Protocol:** Uses human‑readable ASCII commands for configuration and data exchange. - **Industrial‑Grade Design:** Rugged ABS enclosure with PCB coating for resistance to humidity, dust, and chemical exposure. - **DIN‑Rail or Panel Mounting:** Compact form factor suitable for control cabinets and distributed I/O panels. - **Long‑Distance Communication:** RS‑485 bus supports up to 1,200 m (4,000 ft) between nodes. - **Noise Immunity and Isolation:** Differential signaling and internal protection circuits minimize EMI and ground‑loop interference. - **Flexible Input Wiring:** Supports contact closure, transistor, or TTL‑level signal sources. - **Software Compatibility:** Fully supported by ADLINK’s NuDAM Administration Utility for configuration, monitoring, and diagnostics.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **15 Isolated Digital Input Channels:** Each channel is optically isolated to protect against high‑voltage transients and ground loops. - **Common Power Input Design:** All channels share a common external +24 V supply, simplifying wiring in industrial environments. - **High Isolation Voltage:** 5000 Vrms isolation between field inputs and logic circuitry ensures robust protection against electrical noise and surges. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential signaling for long‑distance, multi‑drop networking. - **Wide Communication Speed Range:** Supports baud rates from 1200 bps up to 115.2 kbps. - **Programmable Host Watchdog Timer:** Automatically sets outputs to a safe state if host communication fails. - **Internal Hardware Watchdog:** Monitors module operation and resets the device in case of internal malfunction. - **Compact Industrial Design:** DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for easy installation. - **Noise Immunity and EMI Protection:** Internal shielding and coated PCB for operation in harsh industrial environments. - **Simple ASCII Command Protocol:** Compatible with all NuDAM modules; easy integration with PCs, PLCs, and SCADA systems. - **Long‑Distance Networking:** Up to 4000 ft (1200 m) communication distance per segment; up to 128 modules per RS‑485 bus. - **Low Power Consumption:** Typical consumption of 0.216 W.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **15‑bit digital open‑collector outputs** with common ground configuration. - **High isolation voltage:** 3,750 VRMS (typical 5,000 VRMS isolation protection between I/O and communication circuits). - **Maximum load current:** 300 mA per channel (hardware revision A2). - **RS‑485 two‑wire communication interface** supporting up to 115.2 kbps. - **Programmable host watchdog timer** for host failure protection. - **Internal hardware watchdog** for device self‑recovery. - **Open‑collector transistor outputs** suitable for driving relays, lamps, solenoids, or other logic‑level loads. - **Common ground output design** simplifies wiring for multiple loads sharing a single return path. - **Compact, DIN‑rail or panel‑mountable ABS enclosure** with screw‑terminal connectors. - **Easy configuration via ASCII command set** using NuDAM Administration Utility. - **Wide power input range:** +10 V DC to +30 V DC (unregulated). - **Low power consumption:** 1.32 W typical. - **Industrial‑grade design** with EMI shielding and conformal coating for harsh environments.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **8255 Mode 0 Emulation:** Fully compatible with the standard 8255 PPI chip, providing ports A, B, C‑upper, and C‑lower for flexible bit‑level control. - **28 Digital Channels:** 24 programmable I/O lines plus 4 dedicated digital inputs. - **High‑Voltage Isolation:** 5 kVrms optical isolation between field I/O and communication circuitry for operator and equipment protection. - **TTL‑Compatible Logic:** All I/O lines conform to TTL voltage levels for direct interface with logic devices or opto‑isolated I/O racks (OPTO‑22 compatible). - **Buffered Outputs:** Line drivers provide higher current‑drive capability and improved noise immunity. - **Status Read‑Back:** Each output bit can be read back for verification. - **Direct Bit Set/Reset:** Individual bit manipulation without affecting other bits. - **Watchdog Protection:** - Hardware watchdog (150 ms) for internal fault recovery. - Host‑programmable watchdog (100 ms – 25.5 s) with user‑defined safe output states. - **Resettable Power Fuse:** On‑board protection against external short circuits on field‑power lines. - **RS‑485 Networking:** Two‑wire, half‑duplex communication supporting up to 128 modules per segment (256 with repeater). - **ASCII Command Protocol:** Simple printable‑character command/response set for easy integration with any host language. - **Industrial‑Grade Construction:** ABS enclosure with conformal‑coated PCB for resistance to humidity, salt spray, and chemicals. - **DIN‑Rail or Panel Mounting:** Compact form factor suitable for control cabinets and distributed I/O panels.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Dual‑function I/O:** Four relay outputs (two Form A and two Form C) and four optically isolated digital inputs. - **RS‑485 Communication:** Two‑wire, half‑duplex serial interface supporting up to 115.2 kbps for long‑distance, multi‑drop networking. - **High Isolation:** 1000 Vrms isolation between relay contacts and coil; 750 Vrms between open contacts. - **Programmable Watchdog:** Hardware and host‑programmable watchdog timers ensure safe output states during communication or power failures. - **Industrial Reliability:** Designed for harsh environments with noise immunity, surface‑coated PCB, and wide power input range (+10 V DC – +30 V DC). - **Flexible Mounting:** DIN‑rail or panel mounting with screw‑terminal connectors for field wiring. - **ASCII Command Protocol:** Simple, printable‑character command/response structure for easy integration with PCs, PLCs, or embedded controllers. - **Network Expandability:** Up to 256 addressable modules on a single RS‑485 bus; 128 per segment without repeaters. - **Compact, Rugged Design:** ABS enclosure with internal EMI shielding and conformal coating for humidity and chemical resistance.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Eight Form A Relay Outputs:** Each channel provides an independent normally‑open contact for switching AC or DC loads. - **Relay Ratings:** – 0.5 A @ 125 VAC (max) – 1 A @ 30 VDC (max) - **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential bus supporting up to 115.2 kbps and 4000 ft (1200 m) transmission distance. - **Multi‑Drop Networking:** Up to 128 modules per bus segment, 256 modules total with repeaters. - **ASCII Command/Response Protocol:** Simple printable‑character protocol for configuration and control, compatible with most programming languages. - **Programmable Host Watchdog Timer:** Ensures safe output state if host communication fails; timeout adjustable from 100 ms to 25.5 s. - **Internal Hardware Watchdog:** 150 ms device‑level supervisor resets the module automatically on internal fault. - **Optical Isolation:** 2500 Vrms (min) isolation between logic and field circuits for industrial safety. - **High Noise Immunity:** EMI‑shielded ABS enclosure with internal conductive coating and conformal‑coated PCB for harsh environments. - **DIN‑Rail or Panel Mounting:** Compact, rugged housing with screw‑terminal connectors for quick installation. - **Software‑Configurable Address and Baud Rate:** Default ID = 01 (Hex), 9600 bps; configurable via RS‑485 commands or NuDAM Administration Utility.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Eight AC Relay Outputs:** Provides eight independent Form‑A (normally open) relay channels for switching AC or DC loads. - **High Load Capacity:** Each relay contact rated at **3 A @ AC 250 V** or **3 A @ DC 30 V**, suitable for controlling solenoids, lamps, contactors, or other actuators. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex differential interface supporting multi‑drop networking of up to 128 modules per segment and 256 addressable modules per network. - **High Isolation Voltage:** 2000 Vrms isolation between relay coil and contact; 1000 Vrms between open contacts, ensuring electrical safety and noise immunity. - **Programmable Watchdog Timers:** - **Module internal watchdog (150 ms)** for self‑recovery on firmware failure. - **Host‑programmable watchdog (100 ms – 25.5 s)** to force outputs to a predefined safe state if host communication is lost. - **Safety and Reliability:** - Power‑failure detection threshold at 4.65 V. - User‑defined safe output values on host failure. - Expected relay life: 10⁵ operations at rated load or 2 × 10⁷ operations no‑load. - **Ease of Integration:** ASCII‑based command/response protocol compatible with any host computer or PLC supporting serial communication. Supported baud rates: 1200 – 115.2 kbps. - **Industrial‑Grade Construction:** Compact ABS enclosure with conformal‑coated PCB for resistance to humidity, dust, and chemical exposure. - **Simple Installation:** Screw‑terminal connectors for field wiring; DIN‑rail or panel mounting options.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Dual 32‑bit Counter/Frequency Inputs:** Two independent channels capable of counting up to 4,294,967,295 pulses each, supporting both counter and frequency measurement modes. - **High‑Speed Input Capability:** Maximum input frequency of **20 kHz** (typical) with minimum pulse width of **> 5 µs**, ensuring accurate detection of fast pulse trains. - **Frequency Measurement Range:** Programmable from **1 Hz to 20 kHz**, with built‑in gate times of **0.1 s or 1 s** for flexible resolution and response trade‑offs. - **Programmable Digital Filter:** Adjustable high‑ and low‑level minimum signal width (4 µs – 1.02 ms) for noise suppression and signal conditioning. - **Selectable Input Modes:** Supports **photo‑isolated** or **TTL (non‑isolated)** input operation. - Isolated mode: 5000 Vrms isolation, logic 0 ≤ 1 V, logic 1 = 3.5 – 30 V. - Non‑isolated mode: programmable thresholds (default = 0.8 V low, 2.4 V high). - **External Gate Control:** Each counter channel includes an external gate input for enabling/disabling counting or synchronizing with external events. - **Alarm and Comparator Functions:** Independent programmable alarm limits for each counter. When enabled, alarms can drive the digital outputs to activate external indicators or relays. - **Dual Digital Outputs:** Two open‑collector outputs (30 V max, 30 mA sink) configurable as alarm outputs or general‑purpose digital outputs. - **High Isolation and Noise Immunity:** 5000 Vrms isolation between field inputs and communication circuitry, with internal watchdog and EMI‑shielded ABS enclosure. - **RS‑485 Communication Interface:** Two‑wire, half‑duplex, multi‑drop network supporting up to 256 addressable modules at baud rates from **1200 bps to 115.2 kbps**. - **Programmable Watchdog Timers:** - **Module internal watchdog:** 150 ms automatic reset on internal fault. - **Host watchdog:** 100 ms – 25.5 s programmable timeout with safe‑state output. - **Software‑Configurable Parameters:** Input mode, gate mode, filter enable, threshold levels, alarm limits, and output states are all programmable via ASCII command set. - **Industrial‑Grade Design:** Compact, DIN‑rail or panel‑mountable ABS housing with screw‑terminal connectors for secure field wiring.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **RS‑422/RS‑485 Signal Repeater:** Functions as a bidirectional repeater for differential serial communication lines, regenerating and retransmitting signals to extend network length or increase node count. - **Automatic Direction Control:** Built‑in communication direction control circuitry automatically manages data flow without requiring external control signals. - **High‑Speed Transmission:** Supports baud rates from **1,200 to 115,200 bps**, maintaining reliable data integrity across extended distances. - **Network Expansion Capability:** Each RS‑485 segment supports up to **128 NuDAM modules**; with repeaters, the network can scale to **256 addressable modules**. - **Extended Communication Distance:** Each segment can reach up to **4,000 feet (1,200 meters)**; repeaters can be cascaded to cover longer distances. - **Surge Protection and Isolation:** Incorporates transient voltage suppressors (TVS) and positive temperature coefficient (PTC) protection for robust operation in industrial environments. - **Low Power Consumption:** Operates efficiently with a typical power consumption of **1.104 W**. - **Simple Setup and Installation:** Hardware‑based configuration via internal DIP switches; no software setup required. - **Industrial‑Grade Design:** Compact ABS enclosure with screw‑terminal connectors for secure wiring and easy DIN‑rail or panel mounting.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Bidirectional Serial Conversion:** Converts RS‑232 signals to RS‑422 (4‑wire full‑duplex) or RS‑485 (2‑wire half‑duplex) differential communication. - **High‑Speed Data Transmission:** Supports baud rates from **1200 to 115,200 bps**, matching the input RS‑232 speed. - **Automatic Direction Flow Control:** Eliminates the need for software‑controlled data‑direction signals when operating in RS‑485 mode. - **High Isolation Voltage:** Provides **2500 Vrms isolation** between the host RS‑232 interface and the RS‑422/RS‑485 network, protecting equipment from ground loops and electrical surges. - **Extended Network Capacity:** Supports up to **128 modules** on a single RS‑485 bus segment and up to **256 addressable modules** when used with ND‑6510 repeaters. - **Long‑Distance Communication:** RS‑485 network distance up to **4000 ft (1200 m)** without repeaters. - **Industrial‑Grade Design:** Rugged ABS enclosure with internal EMI shielding and conformal coating for resistance to humidity, salt spray, and chemical exposure. - **Low Power Consumption:** Typical power usage **0.912 W** from a **+10 V – +30 V DC** supply. - **Plug‑and‑Play Compatibility:** Standard **DB‑9 female RS‑232 connector** and **plug‑in screw terminal block** for RS‑422/RS‑485 wiring. - **Simple Configuration:** Hardware DIP‑switch setup for baud rate and data format; no software configuration required. - **Network Integration:** Serves as the host interface for NuDAM analog, digital, and counter modules in distributed data acquisition systems.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules

- **Bidirectional Signal Conversion:** Converts RS‑422/RS‑485 differential signals to RS‑232 single‑ended signals, allowing RS‑232 devices to communicate over extended RS‑485/RS‑422 networks. - **Addressable Operation:** Each ND‑6521 can be assigned a unique address (00–FF hex), enabling up to 256 modules to coexist on a single RS‑485 bus. - **Dual‑Mode Functionality:** Operates in either **addressable** or **non‑addressable (transparent)** mode, selectable via software or hardware configuration. - **High‑Speed Communication:** Supports baud rates from **1,200 to 115,200 bps**, with independent speed settings for RS‑232 and RS‑485/RS‑422 interfaces. - **Full‑Duplex and Half‑Duplex Support:** - RS‑422: 4‑wire full‑duplex differential transmission. - RS‑485: 2‑wire half‑duplex with automatic direction flow control. - **Optical Isolation:** 2,500 Vrms (typical) isolation between communication ports, protecting host systems from ground loops and electrical surges. - **Surge Protection:** Integrated transient voltage suppressors (TVS) and positive temperature coefficient (PTC) protection on all communication lines. - **Watchdog Function:** Hardware and software watchdog timers ensure automatic recovery from communication or host failures. - **Flexible Configuration:** Baud rate, parity, stop bits, and data bits are software‑configurable; checksum and delimiter options enhance communication integrity. - **Industrial‑Grade Design:** ABS enclosure with internal EMI shielding and conformal coating for resistance to humidity, salt spray, and chemical exposure. - **Ease of Installation:** Plug‑in screw terminal block for RS‑485/RS‑422 and standard DB‑9 female connector for RS‑232 simplify wiring and maintenance. - **Software Compatibility:** Supported by ADLINK’s **NuDAM Administration Utility** for Windows 3.1/95/98/NT/2000 and DOS environments. - **LED Indicators:** Power and data transfer LEDs provide visual status feedback.

Manufacturer: Adlink Technology Inc.

Category: RS485 DIN Rail IO Modules