Zigbee configuration need help

HI
i have below adaptor

paste image host

and its on /dev/ttyUSB1

when i configure on below

zigbee:
device: /dev/ttyUSB1
baud: 115200

thern i loose zwave that is on /dev/ttyUSB0

any reason ?
please help me to setup zigbee or let me know any other recomedn hardware if this one not compitable
thnak

ANy Body there ?