PRECISION SOUNDS.

JCAT USB CARD FEMTO – QUICK START GUIDEIntroduction
Thank you for purchasing the JCAT USB Card FEMTO. This Quick Start
Guide is designed to guide you through installation.
Package Content• JCAT USB Card FEMTO• Low-profile PCI Express bracket (the card comes with the fullheight bracket installed)
Installation Requirements• PC with one free x1-x16 lane PCI Express 2.0 slot
• Optional: 5V/1A linear power supply (recommended for bestresults)
System Requirements• Linux or Microsoft Windows (all editions)• Optional driver package required for Windows XP & 7 (for Linux,Windows 8 or later, driver is loaded automatically):
https://jcat.eu/RENESAS-USB3-Host-Driver-30230-setup.exe
Installation•The 5V voltage for USB connectors and for the USB chipset & clock
can be supplied from the computer connecting the J6 LP4 to thecomputer’s power supply. However, it is highly recommended toconnect a clean 5V/1A external power supply via the J3 power jack(The jack is 2.1/5.5 mm) – this is recommended even if a USB
DAC/USB DDC doesn’t require 5V via USB port. The 5V voltage isadditionally filtered by low noise LDOs on the JCAT board andonly clean voltages are applied to the USB controller & clock.
The power selection configuration is described in Table 1. Thejumpers on the card are configured to use external PSU bydefault. If a USB DAC/USB DDC does not require 5V via USB ports,
it is recommended to remove all jumpers from the card for best
performance.

JPLAY
UL. RYMARSKA 45/1
53-206 WROCŁAW, POLAND

WWW.JCAT.EU
SUPPORT@JCAT.EU

VAT ID: PL7931476613
IBAN: PL04 2490 0005 0000 4600 8968 8591 (EUR)
SWIFT: ALBPPLPWPRECISION SOUNDS.

Table 1 USB connectors power source selection
USBconnectorConnector Description
J5J1J4J7J2J8••••••••Selects 5V power source for J1 USB connector 1-2 –5V from J3 power jack
2-3 – 5V from J6 LP4
1-2 – low noise LDO is used to filter noise fromselected 5V power supply (max 900mA) to J1 USB
connector
2-3 – selected 5V is connected directly to J1 USBconnector
Selects 5V power source for J2 USB connector 1-2 –5V from J3 power jack
2-3 – 5V from J6 LP4
1-2 – low noise LDO is used to filter noise fromselected 5V power supply (max 900mA) to J2 USB
connector
2-3 – selected 5V is connected directly to J2 USB
connector

Optional: mount low-profile PCI Express bracket.
Disconnect the power and remove your PC’s cover.
Look for a free PCI Express slot. Depending on the model, yourmotherboard may have a variety of different slots to choose from.
The JCAT USB Card FEMTO can be installed in any PCI Express Gen 2
slot: x1, x2, x4, x8 and x16.
Once you have decided which slot you are going to use, you might
have to remove the blank (thin piece of metal attached thatcovers the hole in the chassis).
Align the JCAT USB Card FEMTO with the slot and gently, but
firmly push the card into position. Once the JCAT USB Card FEMTO
is seated firmly into place, insert fixing screw.
Optional: connect 5V/1A power supply either via LP4 molex or
2.1/5.5mm center positive DC jack connector
Check to make sure nothing has been loosened during installationand then replace the case cover and connect your USB device.
Reconnect the power.

JPLAYUL. RYMARSKA 45/1
53-206 WROCŁAW, POLAND

WWW.JCAT.EU
SUPPORT@JCAT.EU

VAT ID: PL7931476613
IBAN: PL04 2490 0005 0000 4600 8968 8591 (EUR)
SWIFT: ALBPPLPW