HELP W689 M/S decoder encoder connection

[giampi]

Hi, I want to add 2 w689 Panorama module to a chain of stereo bus.
I have the schematic of 689 but I can not understand how to connect the two modules.

  my setup is:
neumann summing V475 - w689 (encoder) - w689 (decoder) - ANT VCA module - NTP meter

the problem is that I want two outputs L / R

in each module w689 have 2in L / R 2 out L / R 2out M / S

how do I interface the two modules w689 for 2 out L / R ??????
Please help ... HELP