7SG15 MicroTAPP Communications Interface
4.4 Distances
These figures are based on manufacturers’ data and may be subject to change without notice. No account is
taken of minimum distances. With certain fibres, it is possible to overload the receivers thus causing errors. All
distances are in metres, and are maximum figures, allowing for LED degradation. All products are optimised for
use with glass fibre cable, except where polymer (p) is stated.
1mm polymer
DESTINATION
SOURCE
Argus
(p)
Argus Modular I Modular II Sigma 1 Sigma 3
(p)
Sigma 3
(ST)
Sigma 4
(p)
Sigma 4
Argus (p)
40 70 0 70 70 40 80 80 80
Argus
4.5 6.5 0 6.5 6.5 4.5 6.0 7.0 6.0
Modular I
0 0 5.5 0 0 3.5 6.0 6.0 6.0
Modular II
4.5 6.5 0 6.5 6.5 4.5 6.0 7.0 6.0
Sigma 1
4.5 6.5 0 6.5 6.5 4.5 7.0 7.0 7.0
Sigma 3 (p)
10.0 35 35 35 35 10.0 45 45 45
Sigma 3 (ST)
2.5 4.5 4.5 4.5 4.5 2.5 5.0 5.0 5.0
Sigma 4 (p)
38 65 65 65 65 35 75 75 75
Sigma 4 (ST)
2.5 4.5 4.5 4.5 4.5 2.5 5.0 5.0 5.0
200µm PCS
DESTINATION
SOURCE
Argus
(p)
Argus Modular I Modular II Sigma 1 Sigma 3
(p)
Sigma 3
(ST)
Sigma 4
(p)
Sigma 4
Argus (p)
100 260 0 260 260 100 320 320 320
Argus
1540 2110 0 2110 2110 1540 2310 2310 2310
Modular I
0 0 1320 0 0 750 1520 1520 1520
Modular II
1540 2110 0 2110 2110 1540 2310 2310 2310
Sigma 1
1540 2110 0 2110 2110 1540 2310 2310 2310
Sigma 3 (p)
0 0 0 0 0 0 0 0 0
Sigma 3 (ST)
370 940 940 940 940 370 1140 1140 1140
Sigma 4 (p)
0 0 0 0 0 0 0 0 0
Sigma 4 (ST)
370 940 940 940 940 370 1140 1140 1140
62.5/125 µm glass
DESTINATION
SOURCE
Argus
(p)
Argus Modular I Modular II Sigma 1 Sigma 3
(p)
Sigma 3
(ST)
Sigma 4
(p)
Sigma 4
Argus (p)
0 0 0 0 0 0 0 0 0
Argus
350 1780 0 1780 1780 350 2280 2280 2280
Modular I
0 0 350 0 0 0 850 850 850
Modular II
350 1780 0 1780 1780 350 2280 2280 2280
Sigma 1
350 1780 0 1780 1780 350 2280 2280 2280
Sigma 3 (p)
0 0 0 0 0 0 0 0 0
Sigma 3 (ST)
20 20 20 20 20 20 20 20 20
Sigma 4 (p)
0 0 0 0 0 0 0 0 0
Sigma 4 (ST)
20 20 20 20 20 20 20 20 20
©2011 Siemens Protection Devices Limited Chapter 4 Page 6 of 8
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