AFS10S Field Control Unit (for RIO, 19-inch rackmountable type)AFS10D Duplexed Field Control Unit (for RIO, 19-inch rack mountable type)AFS20S Field Control Unit (for RIO, with cabinet)AFS20D Duplexed Field Control Unit (for RIO, with cabinet)AFS30S Field Control Unit (for FIO, 19-inc...