ALR121-S00 S1 Yokogawa COMMUNICATION MODULE ORIGINAL

Description

Yokogawa ALR121-S00 S1 – Product Description & Technical Specifications
Product Description
The Yokogawa ALR121-S00 S1 is a serial communication module for Yokogawa SCS/DCS, supporting RS-422/RS-485 standards to enable stable data exchange with field devices. Suffix “-S00 S1” means standard configuration with ISA Standard G3 compliance. It is industrial-grade, anti-interference, suitable for harsh industrial fields, brand-new with 12-month warranty.

Basic Information
Brand: Yokogawa
Model: ALR121-S00 S1
Product Type: Serial Communication Module (standard type, RS-422/RS-485, ISA G3 compliant)
Weight: ~0.34 kg (net); ~1.5 kg (shipping) (batch-variable)
Dimensions: 10.0 cm × 6.0 cm × 2.0 cm (W×D×H) (standard for this variant)[1]
Country of Origin: Japan (batch-variable)
HS Code: 8538900000 (for reference only)
Environmental Specifications
Operating Temperature: -10 °C to 60 °C
Storage Temperature: -20 °C to 70 °C
Humidity: 5%–95% RH (non-condensing)
Electrical & Interface Specifications
Input Voltage: 24 V DC ± 20%
Maximum Current Consumption: 0.5 A (typical）
Bus Interface: 2×D-sub 9-pin (female, RS-422/RS-485 4-wire system)
Communication Protocol: RS-422/RS-485, half-duplex, start-stop synchronization[2][5]
Output: 1200 bps–115.2 kbps speed, max 1200m total transmission distance, supports point-to-point/multipoint connection
Isolation: Anti-interference design, no interference with safety loopsPhysical & Mounting
Mounting: Compatible with Yokogawa SCS, FCS, bus node units and specified bases; supports flexible installation
Chassis Material: Industrial metal alloy (EMI/RFI resistance)
Key Features
1. Dedicated serial module for Yokogawa SCS/DCS, supports RS-422/RS-485.
2. Standard “-S00 S1” configuration with ISA G3 compliance.
3. Flexible transmission speed, long-distance communication.
4. Anti-interference, no safety loop interference.
5. 2 ports, supports point-to-point/multipoint connection.
6. Compact (0.34 kg net), easy to install.
7. Compatible with Yokogawa systems.
8. Industrial-grade, 12-month warranty.

ALR121-S00 S1 Yokogawa PDF
ALR121-S00 S1

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Shipping:
1. Your item will be shipped to all countries via EMS, unless one country cannot be shipped via EMS. We will choose DHL, UPS, or FedEx. Please leave us your phone number.
2. We will ship the product to you on the same day or within 1-2 working days after receiving your payment. The shipping time depends on the country/region where you reside, the customs and habits of your country/region, and especially during peak hours.
3. Assuming (assuming) that the item requires payment of tariffs from your country, the buyer is obligated. We are not responsible for any taxes or customs fees in your country/region.

Return Policy:
1. Please contact us before returning the item.
2. The buyer should inform the seller of all returned items within 7 days after receiving the package. We reserve the right to reject any request to inform the seller for more than 7 days.
3. Returned products must have all original packaging and be in good condition.

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If you are satisfied with the purchase, please leave us an active response.
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