Tadiran Telecom Coral IPx 800 Series Installation Procedure And Hardware Reference Manual page 311

Connecting the IPx 500X Cage to the IPx 800M Cage
All IPx 500 and IPx 800 cages are interconnected with an H500-1 cable.
For systems that include one IPx 500X cage and one IPx 800X cage, always connect the
IPx 500X cage directly to the IPx 800M cage. If an IPx 800X cage is installed between
the IPx 800M cage and an IPx 500X cage, a PX card will have to be installed in slot 1 of
the IPx 800X cage. This slot could otherwise be used for a service card.
Related Documentation
Coral IPx 500 Hardware and Installation Manual
Coral FlexiCom and IPx Product Description
6-71
Cage Description