Datasheet
  Copyright © 2011 Future Technology Devices International Limited  21 
Document Reference No.: FT_000204 
DB9-USB Datasheet 
Version 2.1 
Clearance No.: FTDI# 130 
8  Environmental Approvals & Declarations 
8.1  EMI Compatibility 
FCC and CE 
DB9-USB modules are certified for both FCC Part 15 Subpart B and European EMC Directive. 
NOTE: This is a Class B product. In a domestic environment, this product may cause radio interference, 
in which case the user may be required to take adequate measures. 
NOTE: This equipment is currently undergoing testing to comply with the limits for a Class B digital 
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection 
against harmful interference in a residential installation. This equipment generates uses and can radiate 
radio frequency energy and, if not installed and used in accordance with the instructions, may cause 
harmful interference to radio communications. However, there is no guarantee that interference will not 
occur in a particular installation. If this equipment does cause harmful interference to radio or television 
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to 
correct the interference by one or more of the following measures: 
  Reorient or relocate the receiving antenna. 
  Increase the separation between the equipment and receiver. 
  Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected. 
  Consult the dealer or an experienced radio/TV technician for help. 
8.2  Safety 
The DB9-USB modules are defined as Limited Power Supply (LPS) device, with operating voltages under 
60VDC. 
8.3  Environmental 
The DB9-USB modules are lead-free devices that comply with the following environmental directives: 
RoHS, WEEE, REACH, PFOS and DecaBDE. 
8.4  Reliability 
The DB9-USB modules are designed to be a robust USB-Serial module for use in many environments. 
There are no user-serviceable parts. Any failure will require a replacement of the unit. 










