Input/Output Signals; Line Power Connectors - Keysight N7744A User Manual

1
Getting Started

Input/Output Signals

C A U T I O N

Line Power Connectors

W A R N I N G
12
There is one input BNC connector: Trigger In. This is a TTL input.
A maximum of 5 V can be applied as an external voltage to this input connector.
There is one output BNC connector: Trigger Out. This is a TTL output. Do not apply
an external voltage to this connector.
The N7747A and N7748A have front-panel BNC connectors for each optical port.
This is an analog voltage output (0 to 2V). Do not apply an external voltage to this
connector.
In accordance with international safety standards, the instrument has
a three-wire power cable. When connected to an appropriate AC power
receptacle, this cable earths the instrument cabinet. The type of power
cable shipped with each instrument depends on the country of
destination. Please refer to "Accessories" section in the User's Guide for
the part numbers of available power cables.
To avoid the possibility of injury or death, you must observe the following
precautions before switching on the instrument.
•
Insert the power cable plug only into a socket outlet provided with a protective
earth contact. Do not negate this protective action by the using an extension
cord without a protective conductor.
•
Do not interrupt the protective earth connection intentionally.
•
Do not remove protective covers. Operating personnel must not remove
instrument covers. Component replacement and internal adjustments must
be made only by qualified service personnel.
•
Instruments that appear damaged or defective should be made inoperative
and secured against unintended operation until they can be repaired by
qualified service personnel.
•
Defective, damaged, or malfunctioning laser sources must be returned to an
Keysight Technologies Service Center.
Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
Keysight N774x Series