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Sunix UTM1925B USB to 1-Port Serial RS-232 & 1 Port Parallel IEEE1284 Adapter


Sunix UTM1925B USB to 1-Port Serial RS-232 & 1 Port Parallel IEEE1284 Adapter

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  • Compliant to USB 2.0 and 1.1 standard
  • High speed data transfer rate up to 480 Mbps
  • Cable Length: 5m
  • Connectable to desktop or laptop system equipped with USB port
  • Easy plug & play
  • Supports Windows O.S.

Sunix's UTM1925B offers user the ability to connect a serial device and a parallel device simultaneously. The UTM1925B only require one USB port for connection of two devices, therefore free up your other USB port for more connection.

The serial port provides data transfer speed up to 115 Kbps and the parallel port gives you 2.7 MB/sec speed. The adapter is versatile that you can use it on desktop or laptop.

  • Expands 1-pors RS-232 Seria & 1-port Parallel l on system via USB connection.
  • Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
  • No IRQ, DMA, I/O address resource required.
  • Supports USB1.1 full speed 12Mbps, and it is USB2.0 compatible.
  • Each serial port provides transmission rate up to 115.2Kbps.
  • Built-in ±15KV ESD protection for all serial signals.
  • Plug-n-Play, I/O address and IRQ assigned by BIOS.
  • Certified by CE, FCC, VCCI, BSMI, C-Tick, and RoHS.
  • Support Microsoft Windows, Linux, and DOS.

Serial Communication

  • Interface: RS-232
  • Controller: Moschip MCS7715 16C550 UART Compatible
  • Bus Interface: Universal Serial Bus (USB) 2.0 / 1.1
  • No. of Port: 1-port
  • IRQ & IO: Assigned by System
  • FIFO: 16 byte (Hardware)
  • Signal: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
  • Baud rate: 50 bps to 115.2 Kbps
  • Data bit: 5,6,7,8
  • Stop bit: 1,1.5,2
  • Parity: None, Even, Odd, Space, Mark
  • Flow Control: RTS/CTS (Hardware) , XON/XOFF(Software)
  • Protection: ±15KV ESD protection for each signal Human Body Model (HBM)
  • Board connector: DB25 Female

Parallel Communication

  • No. og port: 1-port
  • Mode: SPP Mode (Support Printer only)
  • Cable connectors: DB25 Female
  • ESD Protection for Parallel I/O: ±2KV Human Body Model (HBM)

Driver Support

  • Microsoft: Microsoft Windows 98/ME/2000/XP/ 2003/Vista (32bit) Microsoft Windows CE5.0
  • Linux: Linux 2.4.x

Regulatory Approvals

  • Hardware:
    • EUR: CE, EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3
    • US: FCC Part 15 Class B
    • TAIWAN: BSMI: CNS13438
    • AS/NZS: C-Tick: CISPR22
  • Software: Microsoft WHQL Window XP


  • Operating Temperature: 0°C ~ 60°C (32°F ~ 140°F)
  • Operating Humidity: 5% ~ 95% RH
  • Storage Temperature: -20°C ~ 85°C (-4°F ~ 185°F)


  • Input: USB Bus-power
  • Consumption: < 1W = 5V x 200mA


  • Dimension (WxDxH): 75 x 40 x 22mm
  • Cable Length: 1500mm (5ft)
  • Case: ABS
  • Weight: 140 ± 5 g