alternate recon acc

hi,

i understand of the alternate recon acc. now i need clarification of this :

1) somehow, this down payment that posted to alternate recon acc will be cleared and the full amount (down payment + invoice balance balance) will be posted to actual gl recon acc, right?

2) alternate recon acc no influential to normal company account, right?

3) can i say it is also something like clearing account?

When u make a down payment

Down Pyament(Vendor Spl. Gl account) Dr.

Cash/Bank Cr.

When Down payment is settled against an invoice

Material Account Dr.

Down Pyament(Vendor Spl. Gl account) Cr.

Vendor Account Cr.

thanks