
USB-2514 Series User Manual
Publication Jun, 2013 Ver. 1.01
1
USB to 4-Port RS-232 Converter
USB-2514
User Manual
Warranty
All products manufactured by ICP DAS are warranted against
defective materials for a period of one year from the date of delivery
to the original purchaser.
Warning
ICP DAS assumes no liability for damages consequent to the
use of this product. ICP DAS reserves the right to change this
manual at any time without notice. The information furnished by ICP
DAS is believed to be accurate and reliable. However, no
responsibility is assumed by ICP DAS for its use, or for any
infringements of patents or other rights of third parties resulting from
its use.
Copyright
Copyright 2012 by ICP DAS Co., LTD. All rights reserved
worldwide.
Trademark
The names used for identification only may be registered
trademarks of their respective companies.

USB-2514 Series User Manual
Publication Jun, 2013 Ver. 1.01
2
Introduction
USB-2514 is USB to 4-Port RS-232 converter that provides a simple way add up to
four RS-232 ports on your PC. The USB-2514 is support USB 1.1, USB 2.0 standards and
easy setting RS-232 transmission speed from 300 bps to 921600 bps.
Internal I/O Structure:
Pin Assignments:

USB-2514 Series User Manual
Publication Jun, 2013 Ver. 1.01
3
Dimensions (Unit: mm):
Specifications:
Interface
USB Compatibility: USB 1.1 and 2.0 standards
RS-232 TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND
Speed 300 bps ~ 921600 bps
RS-232 DB9 male x 4
Connector
USB B Type
Software
Driver
Windows 98/ME/2000/XP/Vista (32/64-bit)/7 (32/64-bit)
/8 (32/64-bit)/Linux
LED Indicators
Power (PWR) Red LED
Transit Data (TxD) Orange LED
Receive Data (RxD) Green LED
Power
Input Voltage Range +5 VDC from USB (Bus-powered)
Power Consumption 1 W
Mechanical
Casing Plastic
Flammability Fire-Retardant Materials (UL94-V0 Level)
Dimensions (W x H x D) 31 mm x 157 mm x 116 mm
Environment
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -30 °C ~ +75 °C
Humidity 10 ~ 90% RH, non-condensing