Lightwave Communications LDX-3232 Manual de usuario Pagina 28
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OPERATION
Connecting to the Laser
12 LDX-3232
CHAPTER 2
Figure 2.4 Common Laser Anode - Photodiode Anode
The 9-pin connector marked CURRENT SOURCE on the back panel is used to
connect your laser diode to the LDX-3232. There are connections provided for
laser cathode and anode, photodiode cathode and anode, chassis ground and
interlock. The pinout diagram for this connector is shown in Figure 2.5.
Figure 2.5 Back Panel LD Connector
Interlock Connections
In order for the laser output to be enabled a short circuit must exist between the
Interlock Pins (Pins 1 and 2) of the connector. The short can be a direct short
across the pins or a switch to prevent laser operation until the switch is closed. If a
short does not exist between these two pins, the INTERLOCK LED will illuminate
on the front panel and the laser output will be disabled.
Note: The BNC Interlock Connection from the BNC connector on the rear panel will also
make the INTERLOCK LED illuminate. Please see the notes in chapter five on use of the
BNC interlock connection to learn more about its operation.
The interlock terminals on the LASER connector, pins 1 and 2, must be kept isolated
from all other connections including earth ground.
+
-
+
Bias
OUTPUT
7
6
9
5
3
P. D. L. D.
Earth Ground
LDX-3232 Current Source
8 Anode Voltage Sense
1
2
3
4
5
7
8
9
6
1, 2 Interlock
3 Chassis Ground
5 Laser Cathode
6 PD Cathode (+)
7 PD Anode (-)
4 Cathode Voltage Sense
9 Laser Anode
- User’s Guide 1
- TABLE OF CONTENTS 3
- Chapter 3 Remote Operation 4
- Chapter 4 Command Reference 5
- LIST OF FIGURES 7
- LIST OF TABLES 10
- LDX-3232 10
- General Safety Considerations 11
- SAFETY SYMBOLS 12
- WARRANTY 13
- Claims for Shipping Damage 14
- 04_06 LDX-3232 xiii 15
- CHAPTER 1 17
- Product Overview 17
- Initial Inspection 18
- Maintenance 21
- Specifications 22
- 04_06 LDX-3232 7 23
- OPERATION 25
- CHAPTER 2 26
- Connecting to the Laser 26
- 04_06 LDX-3232 11 27
- Front Panel Operation 30
- Error Indicators 35
- REMOTE OPERATION 37
- CHAPTER 3 38
- Command Paths 41
- IEEE488.2 Command Commands 42
- Status Reporting 44
- Turn Output Off 47
- Command Timing and Completion 48
- COMMAND REFERENCE 51
- CHAPTER 4 52
- FUNCTIONS AND FEATURES 99
- CHAPTER 5 100
- Connection 102
- CHAPTER 6 105
- Calibration Overview 105
- Recommended Equipment 106
- Source calibration: 109
- Troubleshooting Guide 115
- Error Messages 117
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