The meaning of Exchange Icons

Can anyone tell me where to find a comprehensive list of what icons represent in Exchange? I have set up an x.400 connector and a directory replication connector to another site. When I look at the replication properties, on one of the boxes I have a green “globe” next to the connected site. On the other machine I have a strange icon that is something I have never seen before. Any help would be greatly appreciated.

Thanks.

Jason