Tektronix OI1125, Instruction Manual

Page: 17 / 88

Getting Started
OI1125 E/O Transmitter Instruction Manual
5
CAUTION.
To prolong the life of your optical connectors and cables, use care
when making optical connections. Refer to Connecting Signals on page 9 for
instructions on connecting optical signals.
If you are not using an optical connection, either on the transmitter, cable, or
associated optical equipment, always leave the protective dust cover on the
connector. The glass surface of the fiber optic core is easily contaminated by
airborne dust particles.
Treat all optical connectors as you would a camera lens or other precision
optical equipment.
7. If you are using an external laser source, connect it to the modulator Laser In
port on the front panel.
CAUTION. To prevent eye injury, do not look directly into the modulated output
port or cable attached to the port. The modulated output from the transmitter
may exceed Class I levels, depending on the power level of the external laser
source you use.
8. Leave the protective dust cover on the modulator output, or connect an
optical cable from the modulator output to your system or measurement
instrument.
To power on the OI1125 E/O Transmitter, first verify that the front-panel Laser
Enable keyswitch is in the OFF (locked) position and then push the rear-panel
power rocker switch to toggle it on. All LEDs will light briefly as the instrument
initializes.
If you are using the internal laser source, rotate the Laser Enable keyswitch
clockwise to the ON (unlocked) position. The ON LED and the Laser Output
Active LED light. The ON LED flashes if the laser safety interlock is not
installed.
WARNING.
To prevent eye injury, do not look directly into any optical output port
or cable attached to the port. Output power from the laser is Class IIIb, which
can be harmful to your eyes. The wavelength output from the OI1125 internal
laser is in the infrared band and is invisible to the human eye.
To power off the OI1125 E/O Transmitter, first rotate the Laser Enable keyswitch
counterclockwise to the off (locked) position, and then push the rear-panel power
rocker switch to toggle it off.
Power on
Enable the Internal Laser
Power off