Microtel Series 1000 - Manual (Page 18)

MICROTEL Series 1000 Dialer
Step Four - Connect External Input/Output to the Dialer Each I/O module
has two (2) corresponding I/O terminals. See Figure 5 below. Use 22 AWG shielded
twisted pair wire when wiring external sensors to the I/O terminals. Observe polarity
when making connections. Whenever possible, ground the shield at the sensor end only.
Sensor control wires should never share conduit with AC power wiring.
NOTE: Keep I/O runs to a maximum length of 150 ft.
Refer to the Appendix for detailed field wiring diagrams, as well as electrical
specifications for each type of I/O Module you may install in the Series 1000. After
physical installation, each I/O module’s alarm operation must be configured. This is
covered in detail in the next chapter. The Quick Start procedure at the end of this chapter
provides info on a simple call-on-alarm configuration.
Figure 5. I/O Terminal Connections
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