Identifies the source of rate information.
For FX, the reference source to be used for the FX spot rate.
This is where to look up the rate information and is not necessarily the entity that sets the rate.
Valid values:
| '0' | Bloomberg |
| '1' | Reuters |
| '2' | Telerate |
| '3' | ISDARateOption |
| '99' | Other |
Used in: