Newport LDC-3706 Series - Page 27

December 2019 15 LDC-3706 Series Laser Controller
Temperature Control Output: A 15-pin D-sub connector is located on the back panel of the LDC-
3726. A 25-pin D-sub connector is located on the back panel of the LDC-3736 and LDC-37620. The
connections are shown below.
LDC-3736 & LDC-37620 LDC-3726
PIN NUMBER CONNECTION PIN NUMBER CONNECTION
1 Sensor
(
+
)
Sense Terminal 1 TE Module
(
+
)
2 Sensor
(
-
)
Sense Terminal 2 TE Module
(
+
)
3 Fan
(
+
)
3 TE Module
(
-
)
4
A
nalo
g
Ground 4 TE Module
(
-
)
5
A
nalo
g
Ground 5 TE Module Shield
6 Sensor / TE Module Shield 6 Temp. Sensor Shield
7 TE Module
(
+
)
Sense Terminal 7 Sensor
(
+
)
8 TE Module
(
-
)
Sense Terminal 8 Sensor
(
-
)
9 TE Module
(
+
)
9
A
nalo
g
Ground
10 TE Module
(
+
)
10 N/C
11 N/C 11 N/C
12 TE Module
(
-
)
12 N/C
13 TE Module
(
-
)
13 N/C
14 Sensor
(
-
)
14 Fan
(
+
)
*
15 Sensor
(
+
)
15 Fan
(
-
)
*
16 Fan
(
-
)
*Pins 14 and 15 are Fan (+) and Fan (-), respectively, for
only CC501S.
17 Cable ID 1
18 Cable ID 2
19 N/C
20 N/C
21 TE Module
(
+
)
22 TE Module
(
+
)
23 N/C
24 TE Module
(
-
)
25 TE Module
(
-
)
If you choose to assemble custom interconnect cables, 18AWG wire is recommended to minimize
voltage drop at high current. Note that the DB-25 connector pins are rated for I
nominal
= 2.5A, therefore
all four TEC+ pins (9, 10, 21, 22) must be used if 8 A is to be delivered to a load as well as all 4 TEC-
pins (12, 13, 24, 25) for the return.
Cable ID pin configurations will determine the maximum output current for the TEC and is only
applicable to products with the 25-pin D-sub connector.
MAX Output
Current Cable ID1 Cable ID2
Pin 17 (LDC-3736 & LDC-37620) Pin 18 (LDC-3736 & LDC-37620)
8
A
Pin 17 to
A
nalog Ground Pins 18 to
A
nalog Ground
5
A
Pin 17 to
A
nalog Ground Pin 18 N/C
1
A
Pin 17 N/C Pin 18 N/C