Schneider 172JNN21032 Serial Link Option Adapter

Overview

The Schneider 172JNN21032 is a serial link option adapter designed for the Modicon Momentum automation platform. It enables communication between Momentum I/O bases and external devices via selectable RS232 or RS485 serial links. This adapter integrates legacy equipment or third-party systems into Modbus-based control architectures. With a compact size, built-in lithium battery, and LED diagnostics, it ensures reliable data exchange in distributed industrial environments.

Technical Specifications

Product Type: Serial Link Option Adapter
Platform Compatibility: Modicon Momentum series

Communication Ports:

• 1 × RS232 or RS485 (selectable)

• 9-pin D-shell connector

Rated Supply Voltage: 5 V DC ±5% (powered via I/O base)
Current Consumption: 700 mA at 12 V DC

Clock Drift Accuracy: ±13 seconds/day

Battery:

• Type: Lithium (2/3 AA)

• Life: 5 years

• Autonomy: <30 days after low battery indication at 40°C

Local Signaling: 1 LED for communication status
Material: Lexan

Mounting: On Momentum I/O base
Protection Rating: IP20 (IEC 529)

Certifications: CE, UL, CSA, NEMA Type 1

Environmental Ratings:

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Relative Humidity: 5% to 95% (non-condensing)

• Altitude: ≤2000 m

Shock Resistance: ±15 g (11 ms half sine)
Vibration Resistance: 1 g (57–150 Hz), 0.075 mm (10–57 Hz)
ESD Protection: 8 kV (air discharge)
EMC Immunity: 10 V/m (80–1000 MHz)

Dimensions:

• Height: 25 mm

• Width: 143.1 mm

• Depth: 60.06 mm

Net Weight: 85.05 g

Dielectric Strength: 500 V DC
Protective Treatment: Conformal coating Humiseal 1A33