2 – 4
Getting Started
1
2
3
4
5
6
7
8
9
+
-
Bias
Interlock
PD Cathode
PD Anode
+
-
V
LD
LD Anode
LD Cathode
LD Anode Sense
LD Cathode Sense
I
LD
I
PD
Figure 2.2: Wiring diagram for the Laser Diode. Pin 3 is internally con-
nected to the chassis, and can be used for cable shielding. When
the “dashed” connections are made,
V
LD
is a 4–wire measure-
ment; otherwise, it is a 2–wire measurement.
1
2
3
4
5
+
—
TE +
I
TE
6
7
8
9
10
11
12
13
14
15
TE Sense +
V
TE
TE —
TE Sense —
t
Sensor 2 Wire +
Sensor 4 Wire +
Sensor 4 Wire —
Sensor 2 Wire —
NTC
RTD
+
—
+
—
LM335
LM235
LM135
(10 mV/K)
AD590
AD592
TMP17
(1 µA/K)
Excitation
Figure 2.3: Wiring diagram for the TEC module. Pins 5 and 6 are internally
connected to the chassis, and can be used for cable shielding.
When the “dashed” connections are made from pins 10 and 12,
V
TE
is a 4–wire measurement; otherwise, it is a 2–wire measure-
ment. When the “dashed” connections are made from pins 14
and 15, the temperature sensor is read with a 4–wire measure-
ment; otherwise a 2–wire measurement.
LDC500 Series Laser Diode Controllers