The module has 120 ohm terminal resistance, it can reduce long-distance communication ech0 interference effectively.
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 is extremely high, up to 2.5MBPS.

- The module comes with TVS diodes. Anti-lightning, anti-spike voltage.
- The module has 120 ohm terminal resistance, it can reduce long-distance communication ech0 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 is extremely high, up to 2.5MBPS.