Agilent Technologies E5052A Programmer's Manual page 503

Electrical Characteristics
Input signal
All input signals are TTL compatible. Table C-7 shows the electrical characteristics of the
input signals, and Figure C-7 shows the circuit diagram of the input signals.
Table C-7 Electrical Characteristics of Input Signals (typical)
Maximum rate input voltage
Input voltage
Figure C-7 Circuit diagram of input signals
C
Communication with External Instruments Using 24-bit I/O Port
-0.5 V to 5.5 V
High level 2.0 V to 5.0 V
Low level 0 V to 0.5 V
Electrical Characteristics
503