CiDRA Sonar Process Monitoring System - Manual (Page 14)

20909-01C Rev 04 Page 6-2
The following signals are not energy-limited for any of the transmitter models.
Note: These signals are not present on every model. Some models may have
one-piece screw terminal blocks and others may have two-piece pluggable
terminal blocks with either screw or spring clip terminals. These terminals will
accept 0.325 to 1.31 mm
2 (22-16 AWG) conductor sizes.
CUSTOMER I/O OUTPUT IS LIMITED TO LIMIT INPUT TO
COMM – COM+ RS-232 or RS-485 signal levels RS-232 or RS-485 signal levels
COMM – COM- RS-232 or RS-485 signal levels RS-232 or RS-485 signal levels
COMM – SHD Ground Ground shields at one end only
PULSE – P+ Isolated solid state relay closure -10V to +30V, 100mA
PULSE - P- Isolated solid state relay closure -10V to +30V, 100mA
PULSE – SHD Ground Ground shields at one end only
ALARM – AL+ Isolated solid state relay closure -10V to +30V, 100mA
ALARM – AL- Isolated solid state relay closure -10V to +30V, 100mA
ALARM – SHD Ground Ground shields at one end only
CUR 1 – VEXT Not an output +15V to +30V, 100mA
CUR 1 – IOUT 21mA 500 ohm (max) to GND or
VINT-
CUR 1 – VINT- -10V Not an input
SHD Ground Ground shields at one end only
SHD Ground Ground shields at one end only
SHD Ground Ground shields at one end only
CUR 2 – VEXT Not an output +15V to +30V, 100mA
CUR 2 – IOUT 21mA 500 ohm (max) to GND or
VINT-
CUR 2 –VINT- -10V Not an input
Table 3 Customer I/O Connections