Connectors

RELAY OUTPUT 1 – 8

(1) 16-pin 5mm detachable terminal block comprising (8) normally open, isolated relays;
Rated 1 Amp, 30 Volts AC/DC maximum; 100µA, 100mV minimum

DIGITAL IN 1 – 4

(1) 5-pin 5mm detachable terminal block comprising (4) digital or analog input ports (referenced to GND);
Digital Input (closure mode): Input threshold 2 Volts DC (±0.5VDC); input impedance 1k ohms to +5VDC; 5 Volt, 1k ohms pull-up resistor and protection diode per pin;
Analog Input (voltage mode): Input threshold 2 Volts DC (±0.5VDC); voltage range 0-24 Volts DC; input impedance 44k ohms

NET

(2) 6-pin RJ11 female, Cresnet slave ports, paralleled;
Connect to Cresnet control network

12VDC

(1) 2.5mm barrel DC power jack;
12 Volt DC power input 

Indicators

PWR

(1) green LED, indicates power supplied from Cresnet network or local power pack

NET

(1) amber LED, indicates communication with Cresnet system

INPUT 1 – 4

(4) red LEDs, indicate a high signal at each corresponding digital input port

RELAY 1 – 8

(4) red LEDs, indicate a closure at each corresponding relay output port

Power Requirements

Power Pack

0.5 Amp @ 12 Volts DC;
120 Volts AC, 60 Hz power pack

Cresnet Power Usage

6 Watts (0.25 Amp @ 24 Volts DC) with no power pack connected

Environmental

Temperature

41° to 113°F (5° to 45°C)

Humidity

10% to 90% RH (non-condensing)

Enclosure

Chassis

Metal, black finish

Faceplate

Extruded aluminum, black finish with polycarbonate label overlay

Mounting

Freestanding or 1U 1/2-width 19-inch rack-mountable (adhesive feet included, ST-RMK rack kit sold separately)

Dimensions

Height

1.80 in (46 mm);
1.70 in (44 mm) without feet

Width

7.07 in (180 mm)

Depth

6.32 in (161 mm)

Weight

1.96 lb (0.89 kg)

INTERNATIONAL VERSION (230 VAC)

STI-IO

All the features and specifications of the ST-IO except:

Power Requirements

Power Pack

0.5 Amp @ 12 Volts DC;

Cresnet Power Usage

6 Watts (0.25 Amp @ 24 Volts DC) with no power pack connected