The E1454A Pattern I/O Pod extends measurement accuracy to a DUT located up to two meters away. The pod buffers the input and output signals for two of the four E1451A/E1452A I/O ports. Two pods are required for each pattern I/O module.

Response pattern clocks are delayed on the Timing Module so that timing is correct at the DUT. Pin-to-pin skew on the pattern I/O lines is compensated for, resulting in a system that is always within specifications. The pattern I/O pods also provide inputs for tri-state control and external clock.