Compaq AlphaServer ES45 1B Owner's Manual page 236

Examples
In this example, both terminators are disabled.
P00>>> set pkb0_soft_term off
P00>>> init
.
.
.
P00>>> show pkb0_soft_term
pkb0_soft_term
In this example, the terminator for the high 8 bits is enabled.
P00>>> set pkb0_soft_term high
P00>>> init
.
.
.
P00>>> show pkb0_soft_term
pkb0_soft_term
5-72 ES45 Owner's Guide
off
high