Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition 5
Input/Output Signals
CAUTION There are two input BNC connectors: the Remote Interlock Connector
and the Trigger Input, see “Input and Output Connectors” on page 289.
These are TTL inputs. A maximum of 5 V can be applied as an external
voltage to either of these input connectors.
There is one output BNC connector: the Trigger Output, see “Input and
Output Connectors” on page 289. This is a TTL output. Do not apply an
external voltage to this connector.
Safety Symbols
The apparatus will be marked with this symbol when it is necessary
for the user to refer to the instruction manual in order to protect the
apparatus against damage.
Caution, risk of electric shock.
Frame or chassis terminal.
Protective conductor terminal.
Hazardous laser radiation.
Magnetic fields may interfere with a pacemaker.
Caution, hot surface
WARNING The WARNING sign denotes a hazard. It calls attention to a procedure,
practice or the like, which, if not correctly performed or adhered to,
could result in injury or loss of life. Do not proceed beyond a
WARNING sign until the indicated conditions are fully understood and
met.