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Price
$24.99
HALJIA RS422 Mutual Transfer TTL Bi-directional Signal Module Full-duplex 422 Single-chip Microcomputer MAX490 TTL Module โ€” image 1
Conditional Access ModulesHALJIAโœ“ In stock

HALJIA RS422 Mutual Transfer TTL Bi-directional Signal Module Full-duplex 422 Single-chip Microcomputer MAX490 TTL Module

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$24.99
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About this item
  • RS422 interface, two-way communication. A B Y Z ultra-long transmission 1000 meters.
  • The module has 15KV ESD protection. Add 10 ohm overcurrent protection resistor to the board. The module comes with TVS diodes. Anti-lightning, anti-spike voltage.
  • The module has 120 ohm terminating resistance, can reduce long-distance communication echo interference effectively.
  • A power indicator and data transceiver indicator. Data status panoramic view. The module TTL side uses 5V DC power supply RXD TXD compatible 5V logic signal.
  • The module uses high-quality MAX490 chip, stability and communication speed is extremely high, up to 2.5MBPS.
Product description

Feature: RS422 interface, two-way communication. A B Y Z ultra-long transmission 1000 meters. The module has 15KV ESD protection. Add 10 ohm current limiting/overcurrent protection resistor to the board. The module comes with TVS diodes. Anti-lightning, anti-spike voltage. The module has 120 ohm terminal resistance, it can reduce long-distance communication echo interference effectively. With power indicator and data transceiver indicator. Easy to watch the Data status. The module TTL side uses 5V DC power supply RXD TXD compatible 5V logic signal. The module uses high-quality MAX490 chip, stability and communication speed is extremely high, up to 2.5MBPS. Module Size: 50 x 27.5mm Weight: 8.5g Packing List: 1 x RS422 Mutual Transfer TTL Bi-directional Signal Module

Product details
Brand
HALJIA
Manufacturer
HALJIA
Weight
0.01 kg
Model number
ADN1903046
Part number
ADN1903046
EAN
0753594158168

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

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