Yokogawa AMM42T 2-Wire Transmitter Input Multiplexer Module

The Yokogawa AMM42T is a 2-wire transmitter input multiplexer module designed for efficient handling of multiple 4–20 mA DC input signals. It is particularly suited for industrial automation and control applications where centralized data collection from multiple field devices is required.

Specifications

Parameter	Details
Product Type	2-Wire Transmitter Input Multiplexer Module
Input Signal	-4 to 20 mA DC
Allowable Input Voltage	40 mA or less
Transmitter Power Supply	23.5 to 24.5 V DC (output power limit: 60 mA or less)
Input Resistance	250 Ω (configurable to 70 Ω when connected to a barrier)
Signal Isolation	No isolation between system and field, and between channels
Data Update Period	1 second
Current Consumption	4 A or less (5.0 V DC)

Key Features

Input Compatibility: Supports standard 4–20 mA DC signals for seamless integration with 2-wire transmitters.
Integrated Power Supply: Provides a stable 23.5–24.5 V DC supply to connected transmitters with a power limit of 60 mA.
Customizable Input Resistance: Configurable resistance settings (250 Ω or 70 Ω) for flexible application scenarios, including connection to barriers.
Compact and Efficient: Consolidates multiple inputs into a single system with a fast data update period of 1 second.
Energy Efficient: Low power consumption with a maximum of 4 A at 5.0 V DC.