Specifications

4000326 Rev A Transmitters 1-117
Configure Parameters Using LCI
Introduction
The LCI software allows you to configure several transmitter parameters.
Configuring Parameters
To configure the parameters, navigate to the Module Details window of the
Transmitter (in the LCI module tree). The parameters are shown under the Controls
heading.
The following table shows the configurable parameters for the transmitter.
Parameter Description Values Default
Enable Laser
Enables or disables transmitter
operation (turns the laser on or
off)
• On = Enabled
• Off = Disabled
Enabled
Laser Mode
Selects laser operation mode to
constant current (i.e., constant
wavelength) or constant power.
• Constant-Current
• Constant-Power
Constant-
Current
Gain Control
Mode
Selects constant gain or
automatic gain control (AGC ).
• Constant-Gain
• AGC
Constant-Gain
RF Drive
Setting
Sets the relative RF drive level
into the transmitter. Only
effective when Gain Control
Mode is set to AGC.
-6.0 dB to +1.0 dB in
0.5 dB steps
0.0 dB
OMI Level
Setting
Sets the Optical Modulation
Index level. Only effective when
Gain Control Mode is set to
Constant-Gain.
-6.0 dB to +1.0 dB in
0.5 dB steps
0.0 dB
Master
Configures the module as master
or slave.
• If set to Master, the
transmitter is controlled by
the Enable control.
• If set to Slave, the
transmitter is controlled by a
combination of Enable and
the external input
CNT_IN_1.
• On = Master
• Off = Slave
Master
Span
Optimizes transmitter
performance based on the
distance or span of the link.
0 km to 60 km in 5
km steps
35 km