Instructions for use
SCU 835 / SEC 15
3.2.3
Maximum cable length
Note
The following information refers to installations in Germany according to standard
VDE 0833-2
. Except
for Germany, the respective national regulations
must
be observed. The maximum cable length always
corresponds to the length of the sensor cable
SEC 15
and the connection cable
CC 15
and applies per
cable connection
I
/
II
of the
SCU 835
. Sensor spacing
SEC 15/10
are suitable e.g. for tunnel applications
where there are no restrictions regarding detector groups. For calculations of the monitoring area, see
document
60V219
- Guidelines for planning and installation.
Specifications concern 1-channel operation with sensor cable connection to port I or II
Sensor spacing
Total length of sensor cable SEC 15 Total length of connection cable CC 15
SEC 15/01
(1 m)
100 m (100 Sensors)
250 m
SEC 15/02
(2 m)
200 m (100 Sensors)
150 m
SEC 15/03
(3 m)
252 m (84 Sensors)
98 m
SEC 15/04
(4 m)
320 m (80 Sensors)
30 m
SEC 15/05
(5 m)
320 m (64 Sensors)
30 m
SEC 15/10
(10 m)
320 m (32 Sensors)
30 m
Table 6: Sensor cable length in
1-channel operation
Specifications concern 2-channel operation with sensor cable connection to port I and II
Sensor spacing
Total length of sensor cable SEC 15 Total length of connection cable CC 15
SEC 15/01
(1 m)
200 m (200 Sensors)
x m / Port (→ Note)
SEC 15/02
(2 m)
238 m (119 Sensors)
x m / Port (→ Note)
SEC 15/03
(3 m)
252 m (84 Sensors)
x m / Port (→ Note)
SEC 15/04
(4 m)
320 m (80 Sensors)
x m / Port (→ Note)
SEC 15/05
(5 m)
400 m (80 Sensors
x m / Port (→ Note)
SEC 15/10
(10 m)
640 m (64 Sensors)
x m / Port (→ Note)
Table 7: Sensor cable length in
2-channel operation
Page 20/112
LISTEC GmbH
60T328-02-LI-en / 29.01.2021
Fig. 18: Maximum cable length
