The Res Line; The Uts Line - Keysight VXI Bus 75000 C Series User And Programming Manual

Using the Keysight E1458A Digital I/O Module

The RES Line

Each port has a reset line labeled RES. The RES line is an output line to the
peripheral. Control of the RES line is only at the register level and is not
supported by SCPI commands. Refer to Appendix B for more information about
this line.

The UTS Line

Each port has a user three-state line labeled UTS. The UTS line is an input line to
the digital I/O module. A TTL Low level on the UTS line will force the data line
transceiver into a three-state mode. The data lines will be held in the three-state
mode independent of the programmed state of the port. A TTL High on the UTS
line allows normal digital I/O module operation. The UTS line can also be left
unconnected to allow normal digital I/O module operation. See the section
"Using the UTS Control Line" later in this chapter for a description of its use.
30 Keysight E1458A 96-Channel Digital I/O Module User Guide
Port Description