Communication Standard
BACnet MS/TP over RS485
Communication speed
9600, 19200, 38400, 57600, 76800, 115200

Hardware Interface
RS485 in accordance with EIA/TIA 485
Cabling
Twisted pair cable

0.34…2.5 mm² wire (AWG 24…12)
Terminal Connectors

Operation
To IEC 721-3-3
Climatic Conditions
Class 3 K5
Temperature
0…50 °C (32…122 °F)
Humidity
<85 % r.H. non-condensing

Transport & Storage
To IEC 721-3-2 and IEC 721-3-1
Climatic Conditions
Class 3 K3 and Class 1 K3
Temperature
-25…70 °C (-13…158 °F)
Humidity
<95 % r.H. non-condensing
Mechanical Conditions
Class 2M2

Communication Standard
Modbus (www.modbus.org)
Default Setting
19200 baud rate, RTU 8 data bits, 1 even parity bit, 1 stop bit
Communication speed
4800, 9600, 19200, 38400
Protocol:
Data bits
RTU – 8 data bits, ASCII – 7 – data bits,
Parity – stop bit
No parity – 2 stops, even or odd parity – 1 stop

Hardware Interface
RS485 in accordance with EIA/TIA 485
Max nodes per network
128
Max nodes per segment
64 (Vector devices only)
Conductors
Shield Twisted Pair (STP) cable
Impedance
100 - 130 ohm
Nominal Capacitance
100 pF/m 16 pF/ft or lower
Nominal Velocity
65% or higher
Galvanic Isolation
The communication circuitry is galvanic isolated
Line Termination
A line termination resistance (120 ohm) shall be connected between the terminals (+) and (-) of the furthermost node of the network
Network topology
Daisy chain according EIA/TIA 485 specifications
Recommended maximum length per chain
1200 m (4000 ft)

Max. 10 VA

24 VAC ±10%, 50/60 Hz, 15…34 VDC ±10%
SELV to HD 384, Class II, 48VA max

Universal Input Setting for Voltage or Current

Input Signal
0-10 V or 0-20 mA
Resolution
9.76 mV or 0.019 mA (10 bit)
Impedance
Voltage: 98Ω Current: 240Ω

Universal Input configured to remote temperature (RT) or digital input (DI)

Type and Range
NTC (Sxx-Tn10 sensor): -40…100 °C (-40…212 °F)

Analog Output

Output Signal
DC 0-10 V / 0-20 mA
Resolution
9.76 mV / 0.019 mA (10bit)
Output Load
Voltage: ≥1kΩ Current: ≤250Ω

Relays Outputs

AC Voltage
0…250 VAC, full load current 3A, locked rotor 18A
DC Voltage
0…30 VDC, full load current 3A, locked rotor 18A

Insulation Strength between relays contacts and system electronics:
4000V AC to EN 60 730-1
Between neighboring contacts:
1250V AC to EN 60 730-1

CE Conformity

EMC directive
2004/108/EC
Low Voltage Directive
2006/95/EC

Product Standards

Automatic electrical controls for household and similar use
EN 60 730-1
Special requirements on temperature dependent controls
EN 60 730-2-9

Electromagnetic compatibility for industrial and domestic sector
Emissions: EN 60 730-1
Immunity: EN 60 730-1
Degree of Protection
IP00 to EN 60 529
Pollution Class
II (EN 60 730-1)
Safety Class
III (IEC 60536) if SELV is connected to DO
II (IEC 60536) if line voltage is connected to DO
Overvoltage Category
III (EN 60 730-1)

Product Standards
Temperature- indicating and -regulating equipment
UL 873
Mark: c(ETL)us
CSA C22.2 No.24
Certified by Intertek: 4005917