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8.3
Voltage Sense
A voltage sense circuit is available in the ML4062-TL2a-CON that allows to measure the internal
module supplied voltage Vcc, with LSB unit is 0.1 mV.
Address
Bit
Name
Description
Type
16
All
Supply voltage MSB
Internally measured supply voltage
RO
17
All
Supply voltage LSB
Internally measured supply voltage
8.4
Current Sense
A current sense circuit is available in the ML4062-TL2a-CON that allows monitoring the current
consumption of the heaters that are distributed over ten power spots. The current sense is able
to measure up to 6.665 Amps. Current is stored in low memory registers 24 and 25.
Note that the Max current consumption of the module is 7.1Amps, but the current sense can
read only up to 6.665Amps.
Address
Bit
Name
Description
Type
24
All
Current Consumption MSB
Current consumption in mA
RO
25
All
Current Consumption LSB
8.5
Programmable Power Dissipation and Thermal Emulation
The ML4062-TL2a-CON module contains ten thermal spots positioned as shown in the figure
below, to allow the user to emulate the thermal behavior of an optical module.
Figure 3: Power Spots Distribution
Where some of these spots are PWM controlled, others are ON/OFF controlled. The table below
shows control type for each of these thermal spots.
Power Spot number
Control Type
1-3-5-6
PWM
2-4-7-8-9-10
ON/OFF
