Comprehensive Product Summary – ADLINK TB‑16P8R/24‑01 Isolated 16 DI 8 DO Relay 24 V Panel

---

### 1. Product Overview

Product Name: TB‑16P8R/24‑01
Model: TB‑16P8R/24
Series: TB‑xxP/xxR Terminal Board Series
Article Number: TB‑16P8R/24‑01
Manufacturer: ADLINK Technology Inc.
Product Type: Isolated 16 Digital Input / 8 Relay Output Terminal Board (24 V version)
Form Factor: Panel‑mount terminal board with opto‑isolated inputs and relay outputs
Manufacturer Address: 9F, No. 166 Jian Yi Road, Chungho City, Taipei 235, Taiwan R.O.C.
Manufacturer Website: [www.adlink.com.tw](http://www.adlink.com.tw)
Support Contacts:
- Sales & Service: service@adlink.com.tw
- Technical Support (NuDAQ): nudaq@adlink.com.tw
- Software Support: sw@adlink.com.tw
- Telephone: +886‑2‑82265877 Fax: +886‑2‑82265717

---

### 2. Key Features

- Hybrid I/O Configuration: Combines 16 opto‑isolated digital input channels with 8 relay output channels on a single board, enabling both signal acquisition and control in one compact module.
- Optical Isolation: Each input channel is isolated via a photo‑coupler providing 2500 V DC isolation, protecting host systems from voltage transients and ground loops.
- Relay Output Section: Eight SPDT (Single Pole Double Throw) miniature relays provide flexible switching for AC or DC loads.
- 24 V DC Coil Operation: The TB‑16P8R/24 variant uses 24 V DC relay coils (model DSIE‑S‑DC24V). A 12 V version (TB‑16P8R/12) is also available.
- LED Status Indication: 24 LEDs (green, yellow, red) provide real‑time visual indication of input and output channel states.
- Opto‑22 Compatibility: Equipped with a 50‑pin Opto‑22‑compatible connector (CN6) for direct interface with ADLINK digital I/O cards such as ACL‑7122, ACL‑7124, PET‑48DIO, PCI‑7248, and PCI‑7296.
- Flexible Input Thresholds: Accepts logic‑high voltages from 3 V DC to 24 V DC or currents from 6 mA to 50 mA, allowing connection to a wide range of sensors and logic devices.
- Compact Panel Design: Dimensions 220 × 132 × 15 mm, suitable for control panels or rack integration.
- Screw‑Terminal Connectivity: Two × 16‑pin input terminals and two × 12‑pin output terminals for secure field wiring.
- Status LEDs and Channel Mapping: Clear LED‑to‑channel mapping simplifies diagnostics and commissioning.
- High Reliability: Designed for industrial environments with surge‑withstand miniature relays and robust isolation.

---

### 3. Technical Specifications

General Characteristics
- Input Channels: 16 optically isolated digital inputs
- Output Channels: 8 relay outputs (SPDT)
- Total Indicators: 24 LEDs (16 for inputs, 8 for outputs)
- Isolation Voltage: 2500 V DC between field and logic sides
- Relay Coil Voltage: 24 V DC (TB‑16P8R/24)
- Relay Type: High‑sensitivity miniature relay, 1500 V FCC surge withstand

Input Electrical Characteristics
- Logic Low Voltage: < 0.8 V DC
- Logic High Voltage: +3 V DC to +24 V DC
- Input Current Range: 6.3 mA to 50 mA
- Logic “1”: Voltage input high
- Logic “0”: Voltage input low

Relay Output Ratings
- Contact Form: SPDT (Single Pole Double Throw)
- Max Switching Power: 60 W / 125 VA
- Max Switching Voltage: 220 V DC / 250 V AC
- Max Switching Current: 2 A (DC or AC)
- Max Carrying Current: 3 A (DC or AC)
- UL/CSA Ratings: 0.6 A @ 125 V AC; 0.6 A @ 110 V DC; 2 A @ 30 V DC

Physical Parameters
- Dimensions: 220 mm (L) × 132 mm (W) × 15 mm (H)
- Weight: Approx. 0.4 kg (typical)
- Material: FR‑4 PCB with solder‑masked surface; metal mounting hardware
- Connectors: Screw‑type terminal blocks and 50‑pin IDC header

Environmental
- Operating Voltage: 24 V DC nominal (for relay coils and logic supply)
- Isolation Protection: 2500 V DC input isolation; 1500 V surge relay protection
- Operating Temperature: 0 °C to +50 °C (typical industrial range)
- Storage Temperature: –20 °C to +70 °C
- Humidity: 10 % to 90 % non‑condensing

---

### 4. Functionality

The TB‑16P8R/24‑01 serves as a terminal interface board bridging field‑level digital signals and host‑level data acquisition or control cards.

Input Functionality:
Each of the 16 input channels is optically isolated using a photo‑coupler. This design prevents electrical noise or high‑voltage transients from propagating to the host system. The inputs can accept DC signals from 3 V to 24 V or current signals from 6 mA to 50 mA. The isolation barrier ensures safe operation when interfacing with sensors, switches, or external logic circuits.

Output Functionality:
The 8 relay outputs provide galvanic isolation between control logic and load circuits. Each relay offers SPDT contacts, allowing normally‑open (NO) and normally‑closed (NC) configurations. The relays can switch both AC and DC loads up to 250 V AC or 220 V DC at 2 A.

LED Indication:
Each channel—input or output—has a dedicated LED indicator. Green, yellow, and red LEDs correspond to different port groups (A, B, C), providing immediate visual feedback of signal states.

Typical Applications:
- Industrial automation and process control
- Machine I/O expansion for PLCs or PC‑based controllers
- Signal isolation between sensors and control logic
- Relay actuation for solenoids, lamps, or contactors
- Laboratory data acquisition and test systems

Compatibility:
The board connects directly to ADLINK and Opto‑22‑compatible digital I/O cards via a 50‑pin flat‑cable connector (CN6). Supported host cards include ACL‑7122, ACL‑7124, PET‑48DIO, PCI‑7248, and PCI‑7296.

---

### 5. Components & Accessories

Included Components:
- TB‑16P8R/24‑01 terminal board
- Integrated screw terminal blocks for inputs and outputs
- 24 status LEDs mounted on board
- 50‑pin IDC header (CN6) for Opto‑22 interface
- Power input connector (CN5) for 24 V DC supply

Connectors and Terminals:
- CN1 & CN2: Input terminal blocks (16 channels total)
- CN3 & CN4: Output terminal blocks (8 relay channels)
- CN5: External power input (+24 V DC and GND)
- CN6: 50‑pin Opto‑22 compatible connector to host I/O card

Optional Accessories:
- 1.5 m 50‑pin flat cable (not included by default)
- DIN‑rail mounting brackets (optional for panel integration)
- Replacement relays (DSIE‑S‑DC24V)
- Protective terminal covers for field wiring

---

### 6. Installation & Setup

Power Requirements:
- Supply Voltage: +24 V DC nominal
- Power Connector (CN5): +24 V and GND terminals
- Ensure the power supply is regulated and isolated from high‑voltage loads.

Mounting Options:
- Designed for panel mount installation (220 × 132 mm footprint).
- Can be mounted inside control cabinets or rack systems.
- Optional DIN‑rail adapter available for vertical mounting.

Wiring Guidelines:
- Use shielded twisted‑pair cables for input signals to minimize noise.
- Observe polarity on input terminals (+ and –).
- For relay outputs, connect load circuits to the Common (COM), Normally Open (NO), or Normally Closed (NC) contacts as required.
- Maintain adequate clearance between high‑voltage and low‑voltage wiring.

Configuration:
- Input mode selection jumpers (JP8 – JP23) allow configuration for dry contact or photo‑coupler input operation.
- When connecting to ADLINK PET‑48DIO or PCI‑7248/96 cards, set the I/O mode to Mode 7 for proper mapping of input/output ports.
- Verify LED indicators for correct channel activity after power‑up.

Connection to Host System:
- Use a 50‑pin flat cable to connect CN6 to the digital I/O card.
- Port A on the host card corresponds to relay outputs; Ports B and C correspond to opto‑isolated inputs.
- Ensure the cable orientation matches pin 1 on both connectors.

---

### 7. Performance & Capabilities

Switching Performance:
- Relays support up to 2 A switching current and 3 A carrying current, suitable for medium‑power control applications.
- Contact resistance is low (< 100 mΩ typical), ensuring minimal voltage drop.
- Mechanical life expectancy > 10⁷ operations; electrical life > 10⁵ operations at rated load.

Input Response:
- Opto‑coupler inputs provide fast response times (< 1 ms typical).
- High noise immunity due to optical isolation and input filtering.

Efficiency:
- Low power consumption per channel (< 1 W typical for relay coil energization).
- LED indicators use low‑current drivers to minimize heat generation.

Limitations:
- Not intended for switching high‑power loads above 250 V AC or 3 A.
- Relay contacts should not be used for high‑frequency switching applications.
- Ensure adequate ventilation when multiple relays are energized simultaneously.

---

### 8. Standards & Compliance

Electrical Safety & Isolation:
- Input isolation tested to 2500 V DC between field and logic circuits.
- Relay surge withstand capability 1500 V FCC standard.

Regulatory Compliance:
- Designed in accordance with UL and CSA relay ratings.
- Manufactured under ADLINK’s ISO 9001 quality management system.
- Meets industrial EMC guidelines for digital I/O equipment.

Industry Standards:
- Opto‑22 pinout compatibility for 50‑pin IDC connectors.
- Compatible with ADLINK NuDAQ and NuDAM series DAQ modules.
- Relay components comply with FCC surge withstand requirements.

---

### 9. Additional Information

Warranty:
- Duration: 1 year from date of purchase.
- Coverage: Free from defects in materials and workmanship.
- Exclusions: Damage from misuse, modification, or operation beyond specifications.
- Remedy: Repair or replacement at manufacturer’s discretion upon return of defective unit.
- Return Procedure: Equipment must be securely packaged and returned postage‑prepaid with proof of purchase.

Maintenance:
- Periodically inspect terminal connections for tightness and oxidation.
- Replace relays if contact wear or sticking is observed after extended use.
- Keep the board free of dust and moisture to maintain isolation integrity.

Technical Support & Updates:
- Firmware and software utilities for ADLINK I/O cards available from the manufacturer’s website.
- Technical documentation and user guides can be requested via email support channels.
- ADLINK provides continuous product improvement; specifications may change without notice.

---

### Summary

The ADLINK TB‑16P8R/24‑01 is a robust, industrial‑grade terminal board integrating 16 optically isolated digital inputs and 8 relay outputs into a single, compact 24 V panel. Designed for seamless integration with ADLINK NuDAQ and Opto‑22‑compatible I/O cards, it provides reliable signal isolation, flexible switching capability, and clear visual status indication. Its combination of high‑voltage isolation, SPDT relay outputs, and standardized 50‑pin connectivity makes it ideal for industrial automation, machine control, and data acquisition applications requiring both input monitoring and output actuation in a single module.

With a solid build (220 × 132 × 15 mm), 24 status LEDs, and compliance with UL/CSA relay ratings, the TB‑16P8R/24‑01 offers a dependable interface solution for engineers and system integrators seeking a cost‑effective and technically sound I/O expansion platform.