Aritech 1X-E4 Series, Installation Manual

Page: 17 / 100

Chapter 2: Installation
1X-E4 Series Installation Manual 11
Connecting zones and zone devices
Connecting zones
Connect zone wires as shown in Figure 4, Figure 5, Figure 6, and Figure 7
above. Line resistance is shown in Table 3 below.
Table 3: Line resistance
Zone type
Line resistance
Standard and active end-of-line EN 54-13 and intrinsically-safe
Mixed 40 Ω max. Not supported [1]
Automatic 55 Ω max. 50 Ω max.
Manual 55 Ω max. 50 Ω max.
[1] Mixed zones are not permitted in installations requiring EN 54-13 or intrinsically-safe
configuration.
To measure the line resistance:
1. Create a short circuit at the end of the zone line.
2. Measure the resistance between the positive and negative lines with a
multimeter.
Note: The default zone detection settings for each operating mode can be found
in Appendix A “Configuration presets” on page 79. To change the zone detection
setting, see “Advanced configuration” on page 40.
Terminating zones
Zone termination is required at all times, whether the zone is used or not. The
type of termination depends on the installation, as shown in Table 4 below.
Table 4: Zone terminations
Installation type
Zone termination
Standard and intrinsically-
safe zones
4.7 kΩ end -of-line resistor
EN 54-13 zones EOL-Z end-of-line device (polarity sensitive)
Active EOL Active end-of-line device
Note: Unused zones must be terminated with an active end-of-line device or
configured as passive end-of- line and terminated with a 4.7 kΩ, 5%, 1/4 W end -
of-line resistor.