44 Chapter 3 Laser Diode Driver Module Operation
3.6.12 Laser Interlock Operation
The back panel laser input/output connector has interlock connections which must be
connected before the laser output will be enabled.
On the laser input/output connector pins 1 and 2 form the interlock path. If there is
not a connection between these pins the laser output will not be enabled. When this
path is broken, the laser Interlock Error condition/event will be reported in the laser
Condition Status Register and the Laser Event Status Register.
This interlock is a safety feature for laser protection. It requires that the connecting
cable be secure before the laser output is enabled. A secure connection significantly
reduces the possibility of an intermittent open circuit to the laser drive current.
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