Campbell CR300 series, Operator'S Manual, Page: 30 / 86

CR300-Series Datalogger
20
5. Overview
5.1 Wiring Panel Overview
FIGURE 5-1. CR300 Wiring Panel
TABLE 5-1. CR300 Wiring Panel Terminal Definitions
Analog Input Function C1 C2 P_SW P_LL VX1 VX2 SE1 SE2 SE3 SE4 SE5 SE6 RS-232 SW12 Max
Single Ended
     
6
Differential
H L H L H L 3
4 to 20 or 0 to 20 mA
 
2
Analog Output Function C1 C2 P_SW P_LL VX1 VX2 SE1 SE2 SE3 SE4 SE5 SE6 RS-232 SW12 Max
Switched-Voltage Excitation
 
2
5 V Source
   
4
12 V Source

1
Digital I/O Function C1 C2 P_SW P_LL VX1 VX2 SE1 SE2 SE3 SE4 SE5 SE6 RS-232 SW12 Max
RS-232

1
RS-232 0-5 V
Tx Rx 1
SDI-12
 
2
Pulse-Width Modulation
   
4
Timer Input
   
4
Period Average
   
4
Interrupt
     
6
General I/O
      
7
Pulse Counting Function C1 C2 P_SW P_LL VX1 VX2 SE1 SE2 SE3 SE4 SE5 SE6 RS-232 SW12 Max
Switch Closure
  
3
High Frequency
       
8
Low Level AC

1
Earth
Ground