XBee PRO of maxstream

i use 2 of the XBIB-R-DEV with XBee pro , when i use the I/O line passing option - and rise one of the input of the remote modole all of the output of the base are rised on and not only the corect one.
this is the modem configuration:
remote: base:
IT=2 1
IC=1F 0
IR=32 0