The A52 and A53 series are versatile RS-232 to RS-422/485 converters designed for users who need to extend serial communication range and enhance networking capability. These converters support all standard serial protocols (RS-232, RS-422, RS-485) and are engineered for industrial environments with features like automatic data direction control and flow control via RTS/CTS.

The A53 model includes 2 kV isolation for added protection in electrically noisy environments. Both models come in a compact, desktop-mountable form factor, making them well-suited for industrial automation, test systems, and serial network expansion.

Technical Specifications:

Interfaces and Standards:

• Supported: RS-232, RS-422, RS-485 (2-wire / 4-wire)
• RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• RS-422: Tx±, Rx±, RTS±, CTS±, GND
• RS-485-4w: Tx±, Rx±, GND
• RS-485-2w: Data±, GND
• RS-485 Control: Automatic (ADDC)
• Flow Control: RTS/CTS

Connectors:

• 10-pin RJ45
• Number of ports: 2

Power:

• Input voltage: 9 to 30 VDC
• Input current: A52 = 170 mA @ 9 VDC, A53 = 195 mA @ 9 VDC
• Power inputs: 1
• Power source: Power jack
• Overload protection: Supported

Mechanical:

• Housing: Plastic
• IP rating: IP30
• Dimensions: 90 x 60 x 21 mm (3.54 x 2.36 x 0.83 in)
• Weight: 85 g (0.19 lb)
• Mounting: Desktop

Environmental Limits:

• Operating temperature: 0 to 55°C (32 to 131°F)
• Storage temperature: -20 to 75°C (-4 to 167°F)
• Humidity: 5 to 95% RH (non-condensing)

Certifications:

• EMI: CISPR 32, FCC Part 15B Class A
• EMS: IEC 61000-4-2 to -4-8 (ESD, EFT, Surge, etc.)
• EMC: EN 55032/35
• Environmental Testing: IEC 60068-2-1/-2/-3/-6/-14
• Vibration: IEC 60068-2-6

Isolation (A53 only):

• 2 kV galvanic isolation

MTBF:

• 1,870,854 hours (Telcordia, GB)

Warranty:

• 5 years (see www.moxa.com/warranty)