Hmc lpar console integration

We want to integrate powervm by using openstack with hmc.
Now we encounter problem with the console, we can open the terminal within hmc, and I think hmc using tech java applet.

sample applet code like

<applet codebase="https://172.16.28.174/hmc/" archive="/applets/pseries_vterm.jar,/applets/appletssl.jar" code="com.ibm.hwmca.vt.applet.VtApplet" id="applet1892" width="1" height="1"><param NAME="MACH_TYPE" VALUE="8204-E8A"/><param NAME="SLOT_NUM" VALUE="16"/><param NAME="PORT" VALUE="9960"/><param NAME="SERIAL_NUM" VALUE="065BD85"/><param NAME="TITLE" VALUE="172.16.28.174 : test_aix / p6550"/><param NAME="legacyhmc" VALUE="legacy"/><param NAME="TOKEN" VALUE="-788767496"/><param NAME="ADDR" VALUE="172.16.28.174"/></applet>

But I see there is a lot params to take.

Is there any other ways to open the lpar console in hmc, like kvm vnc console?