Casella CEL Sensus data logger unit - Manual (Page 20)

5. INPUT CONNECTIONS
Removing the connector cover plate gives access to the input connector
array. The connector array consists of 3, 4 and 5-way detachable connector
blocks to which sensor outputs are wired. The combination of spring-clamp
technology and plug-in modules allow for rapid and secure attachment of a
variety of sensors.
Channel numbering starts from the left-side, bottom-row and
alternates between the bottom and top row, from left to right. In addition the
pins of each connector are numbered from left to right.
A copy of this connector/pin assignment diagram is located on the
reverse of the connector cover plate for reference in the field.
Input Connections
Figure 4: The logger with cover removed
AN1 AN3 AN5 AN7 AN9 AN11 CNT1 CNT3 ALARMS
0V 0V 0V 0V 0V 0V 0V 0V 0V
-A
1
-A
3
-A
5
-A
7
-A
9
-A
11 C1 C3
AL
1
+A
1
+A
3
+A
5
+A
7
+A
9
+A
11 +V +V AL
2 I1 I3 I5 +Vsw +Vsw +Vsw +Vsw +Vsw +Vsw
CHARGER BATT
0V 0V
+CH
G
+CH
G
+CH
G
+CH
G 0V 0V
AN2 AN4 AN6 AN8 AN10 AN12 CNT2 CNT4 AN.OUT
0V 0V 0V 0V 0V 0V 0V 0V VSS
-A
2
-A
4
-A
6
-A
8
-A
10
-A
12
C2 C4 A1
+A
2
+A
4
+A
6
+A
8
+A
10
+A
12
+V +V A2 I2 I4 I6
+Vsw +Vsw +Vsw +Vsw +Vsw +Vsw
RS232 SOLAR
0V -SP
TXD +SP -B
RXD CTS
DTR
-A
RS485
01072
Figure 5: The connector cover label
Page 20 of 44
SENSUS Digital Data Logger -
Users Handbook