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OPERATION
Configuring the LDM-4990
12_06 LDM-4990 9
CHAPTER 2
For example, Figure 2.5 shows a TO-can laser with its associated pin
assignments and configuration. The pins are assigned as shown in Table 2.1.
Figure 2.5 Laser Diode Pin Assignment
Table 2.1 Sample Pin Assignments
For each type, the LDM-4990 configuration switches would be set as follows:
Table 2.2 Sample LDM-4990 Pin Configuration
Type A Type B
Pin 1 Case LD Anode/Case
Pin 2 LD Cathode LD Cathode
Pin 3 PD Anode PD Anode
Pin 4 LD Anode/PD Cathode PD Cathode
LD+ LD- PD+ PD-
S1 S2 S3 S4 S1 S2 S3 S4 S1 S2 S3 S4 S1 S2 S3 S4
Type A X X X X
Type B X X X X