--- type: product schema_version: 1 stock_number: "65464-1" canonical_url: "https://www.artisantg.com/65464-1/MOXA-NA-4020" json_url: "https://www.artisantg.com/65464-1/MOXA-NA-4020.json" generated_at: "2026-11-07T09:37:50.261Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # MOXA NA-4020 RS-485 Network Adapter Modbus/RTU _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: MOXA - Model: NA-4020 - Condition: Used and in Excellent Condition - Price: $415.00 USD - Availability: In stock, 4 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 2 lb, estimated - Shipping dimensions: 8X8X3 in, estimated ## Categories - Industrial Systems Equipment > Industrial Communication > Fieldbus Systems (Profibus, Modbus, etc.) (primary) ## Details This unit includes a MOXA ST-RTB terminal block. ### Configuration - Digital Input, Type and Channels.: 48 Vdc, 4 - Digital Output, Type and Channels.: 125 VAC, 4 - Analog Input, Type and Channels.: 0-10V, 8 - Analog Output, Type and Channels: 0-10V, 4 Part Number: NA-4020, 1201040000021 ## Function Performs industrial automation integration by facilitating communication between RS-485 Modbus/RTU devices and control systems using terminal block connections. Supports multiple I/O types including 4 digital inputs (48VDC), 4 digital outputs (125VAC), 8 analog inputs (0-10V), and 4 analog outputs (0-10V). Enables real-time data acquisition, equipment monitoring, and control signal transmission in manufacturing, building management, and process control applications through standardized Modbus protocol communication. ## Images - - - -