Agilent Technologies Medalist i3070 Series System Installation page 24

Site Preparation
Upstream and ICT SMEMA Interface
1 Upstream system closes UBA relay to indicate to ICT system that a
2 After a delay of 500 ms, ICT system closes USB relay to indicate to
3 Once upstream system detects USB, it starts transferring the board to
4 Upstream system opens the UBA relay once the board exits the
5 ICT system opens USB relay when the board is in the ICT system. This
ICT and Downstream SMEMA Interface
1 A board status (either PASS or FAIL) will be sent to the PLC when
2 When downstream system detects DBAG or DBAB, it closes DSB relay
3 When ICT system detects DSB signal, it starts transferring the board.
4 After the board exits the ICT system, ICT system opens DBAG or DBAB
5 Downstream system opens DSB relay when the board is in the
16
board is available for testing.
upstream system that it is ready to receive the board.
ICT system.
upstream system.
signal remains until the board clears the system (that is, Zone 1 for the
Medalist i3070 Series 5i).
Usually the transfer is initiated by the upstream system.
NOTE
testing is completed. At the same time, ICT system closes the DBAG or
DBAB relay to indicate to downstream system that a board is available.
to indicate to ICT system that it is ready to receive the board.
relay after a 500 ms delay.
downstream system.
Usually the transfer is initiated by the ICT system.
NOTE
Medalist i3070 Series 5i System Installation