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INPUT/OUTPUT CONFIGURATION
INPUTS
All SMART-Space Controller models have an onboard temperature sensor wired internally
as input number four.
UNIVERSAL INPUTS
Inputs 1 and 2 for the SSC, and inputs 1, 2, and 3 for the SSCP and SSCE are universal
inputs that can be configured as binary (two-position) or analog (modulating) using
RC-Studio. Each input must also be configured for the electrical characteristic of the input
device, using the onboard jumper settings (see Jumper Settings later in this section). The
actual range of an input (e.g., temperature, pressure, Off/On) is configured using
RC-Studio.
Each universal input can be connected to a two-wire input device (temperature sensor,
pressure transducer, dry contact, etc.). Connect the input signal to the positive (e.g.,
IN1+), and the input common to the COM terminal. The COM terminals of all inputs are
connected internally to the COM terminal of the power to the controller.
JUMPER SETTINGS
The electrical characteristics of inputs are set using jumpers located between the two
terminal strips of a SMART-Space Controller. Each input has a corresponding jumper used
to set the input to one of three possible types.
TABLE 4: INPUT JUMPER SETTINGS
Jumper Position Description Image
Up Thermistor/dry contact
(20 K Ω pullup to +10 VDC)
Down 4–20 mA
(250 Ω pulldown to ground)
Off 0–10 VDC
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