Owner's manual

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

(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

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