Panasonic EBL128 Planning Instructions page 133

Panasonic Electric Works Nordic AB
MEW01090 Rev: 3
Meter
900
850
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
0 40
Figure 35. Graphs showing the cable length in relation to the COM loop units' total
current consumption. NOTE! The graphs start at "0 mA" and 863 m cable length
respectively but graph 1 and 2 ends at "180 mA" and graph 3 ends at "350 mA".
End of graph = max. allowed loop current. (42.3 ohm = 863 m cable length.)
Maximum cable length
80 120 160
Total COM loop unit current consumption
NOTE! The graphs are valid for the recommended cable type
ELQYB 2 x 1 mm (0.75mm
/ km. The total conductor resistance (ohm) = conductor "L" (ohm) +
conductor "C" (ohm).
131
EBL128 Planning Instructions V1.1.x
200 240 280
2
) with the conductor resistance 24.5 ohm
320
mA