accounts receivable ledger, accounts payable ledger, notes receivable ledger, notes payable ledger and equipment subsidiary ledger

General ledger is just another name given to nominal ledger. Nominal ledger is a ledger that maintains impersonal accounts like sale , purchase, capital etc.

What is in incoming ledger

Another name for the General Ledger is Nominal Ledger.

AP Ledger requires a subsidiary ledger to help keep the clutter down in the general ledger. The standard ledger can often fill up with a large amount of activity, making it difficult to handle.