Tips for Using Modular Terminals

The Biomet station includes DIN-rail mounted modular terminals to provide electrical connections for sensors, switches, and resistors. Two types of modular terminals are included: 2-position terminals that have two electrically connected terminals, and 4-position terminals that have 4 electrically connected terminals. Red terminals are power (+), blue are ground (-), and gray are signal or auxiliary. The modular terminals can accommodate wires from 26 AWG to 14 AWG.

Terminals for Incoming Power

DIN terminal	Assignment	Notes
1, 2, 3	System power (+)	Power in terminals; electrically connected
4	System ground	System ground terminal
5, 6, 7	System power (-)	Power in terminals; electrically connected

Terminals for Sensors and Components

DIN terminal	Assignment	Notes
8	Power (-)	Power to instruments
9, 10, 11	Power (+)	24 or 12 VDC power to instruments
12, 13, 14	Power (+)	12 VDC power to ancillary devices
15	SDI-12 ground	Used with Stevens Hydra Probe II
16	SDI-12 power	Used with Stevens Hydra Probe II
17	SDI-12 signal	Used with Stevens Hydra Probe II
18, 19, 20	Power (-)	Power for datalogger, relay, and CNF4
21, 22, 23	Power (+)	12 VDC power for datalogger, relay, and CNF4