3: Addressable Loop Cables; 4: 25 Vdc Power Cables; 5: Output Cables - Honeywell H-S81-HS Operation Manual

Installation
3.12.3 Addressable Loop Cables
For these types of signal we recommend using shielded twisted pair cables CEI EN 50200 2 x 1
2
mm . Cable section depends on the length, and on the number and type of installed devices. How-
ever, total cable resistance must not exceed 40 Ohms, cable capacity must be below 1 µF and
inductance below 1 mH. The table below shows the minimum cable section required according to
loop length.
NOTE: In case of closed loops, cable length is the overall length from starting to end point. Multi-
conductor cables cannot be used for loop connection.
3.12.4 25 VDC Power Cables
For control panel to field device power supply, we recommend using shielded twisted pair cables
CEI EN 50200 2 x 1 mm
voltage drop along the cable may prevent the connected devices from operating.
3.12.5 Output Cables
For the connection between control panel and outputs (sounders, solenoid valves, panels) we rec-
ommend using flame-resistant, shielded twisted pair cables CEI EN 50200. Also in this case, check
the voltage drop on the cable and increase its section, if necessary.
NOTE: Use the relay contacts on S81-T8006 and S81-T8007 relay termination modules only
with Safety Extra Low Voltages.
112
Loop Length Type of Cable
2 x 1 mm
≤ 1000 meters
2 x 1.5 mm
≤ 1500 meters
2 x 2.5 mm
≤ 2000 meters
2 x 4 mm
≤ 3000 meters
2
. Please take utmost care when selecting the conductors to avoid that the
H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015
Instructions for the Connection of Field Devices
AWG Type
2
16AWG Belden 9575
2
16AWG Belden 9575
2
14AWG Belden 9581
2
12AWG Belden 9583