Black Box RS232/422/485

Product Name: Black Box Serial Converter / Media Converter (RS-232/RS-422/RS-485)

Product Introduction: Black Box manufactures a range of serial protocol converters and media converters that bridge RS-232, RS-422, and RS-485 interfaces. These devices enable interoperability between equipment using different serial standards over various media types (copper, fiber optic).

Category:
Description

Model Series: Black Box Serial Connectivity Products (Multiple Model Numbers Available)

Technical Specifications:

  • Protocols Supported: RS-232RS-422RS-485 (2-wire, 4-wire)
  • Data Rate: Up to 921.6 kbps (RS-422/485), Up to 115.2 kbps (RS-232)
  • Interface Options: DB-9 (RS-232), Terminal Block (RS-422/485), RJ-45 (Ethernet variants)
  • Media Conversion: Copper to Fiber Optic (Multimode 850nm/1310nm, Singlemode 1310nm/1550nm)
  • Fiber Distance: Up to 40 km (single-mode), Up to 2 km (multi-mode)
  • Power Supply5 VDC or 12 VDC or 24 VDC (model dependent)
  • Operating Temperature: -40°C to +75°C
  • Enclosure: Metal housing, DIN rail or desktop
  • LED Indicators: Power, TX, RX, Link Status

Functional Features:

  • Automatic direction control (RS-485 half-duplex)
  • Surge protection: 600W TVS diodes on all serial lines
  • Isolation: 2500 VDC galvanic isolation (fiber models)
  • Auto-baud detection (RS-232/422/485)
  • Store-and-forward capability (buffer up to 1 MB)
  • Ping/Heartbeat monitoring

Performance Parameters:

  • Isolation Voltage: 2500 VDC
  • ESD Protection: ±15 kV (air), ±8 kV (contact)
  • MTBF: > 100,000 hours
  • Latency: < 1 ms (copper), < 5 ms (fiber)

Material Composition: Steel enclosure, PCB with conformal coating, SC/ST/LC fiber connectors

Applicable Industries: Industrial Automation, SCADA, Building Management, Transportation, Military/Defense, Telecom

Installation Requirements: DIN rail (35mm) or wall mount, DC power supply matching voltage rating, proper fiber cable type (single-mode vs multi-mode)

Usage Notes: Set correct serial parameters (baud, data bits, parity, stop bits) on both ends. Use shielded twisted pair for RS-485 runs > 10 meters. Verify fiber polarity (TX/RX) before deployment.

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