idirect line card

Hi,

   I would like to ask about idirect inroute configuration:
Based on the attached graphic:
1. If a remote site (inroute 1) requires 16mbps upstream, does it mean that only 1 remote site can be received by a card whose max data rate is 16mbps?
2. Can I use another XLM-C or receive only card for other inroutes (Inroutes 1,2,3) and use the same inroute frequency as this card?

Thank you and regards,
Julius