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Interlogix SB Serie Installationshandbuch Seite 11

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Cable diameter and length
Table 4: Length of 12V DC power cable (m) (screened SYT1-type)
Ø of wire
Cross-section
(mm)
area wire (mm²)
0,6
0,3
0,9
0,6
1,4
1,5
Table 5: Length of 12V AC/DC heating cable (m) (screened SYT1-type)
Ø of wire
Cross-section
(mm)
area wire (mm²)
0,6
0,3
0,9
0,6
1,4
1,5
Note: If a single cable is used to supply power to several elements, the distance given should be
divided by the number of elements connected to the cable. If several wires of the same cross-
sectional area and polarity are placed in parallel, the distances given should be multiplied by the
number of wires.
Alarm and disqualification relay
When infrared signal is significantly reduced (for example, fog, heavy rain, etc.)
then the disqualification relay will be triggered after 60 s and the Alarm LED will
blink.
In case of obstruction of the beams (for example, by an object or a person) for
more than 60 s, first alarm relay will be triggered, then disqualification relay will
be triggered and alarm relay will be reset (see Figure 6 on page 12 for details).
SB Series AIR Beam Detectors Installation Manual
SB250-N
SB2100-N
159
159
359
359
800
800
SB250-N
SB2100-N
94
94
211
211
470
470
SB450-N
SB4100-N
136
136
307
307
684
684
SB450-N
SB4100-N
47
47
105
105
235
235
SB4200-N
136
307
684
SB4200-N
47
105
235
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Sb250-nSb2100-nSb450-nSb4100-nSb4200-n