Wavetronix smartsensor advance User Manual - page 131
130
APPENDIX
Maximum Cable Length for SS200V Communications
To achieve reliable wired communications, the selected baud rate must be compatible with
the length of the cable run. The table below shows the cable length recommendations for
wired communications (see Table B.2):
Baud Rate
RS-485
115.2
300 ft. (91.4 m)
57.6
600 ft. (182.9 m)
38.4
800 ft. (243.8)
19.2
1000 ft. (304.8 m)
9.6
2000 ft. (609.6 m)
Table B.2 – Maximum Cable Length for Wired Communications
Given the power and communication requirements listed above, here is a summary of some
power and communication cable guidelines (see Table B.3):
Length
Cable
Comm. Channel 1 Comm. Channel 2
0–1500 ft. (0–457.2
m)
6-conductor Cable
Native RS-485
Native RS-485
1500–2000 ft.
(457.2–609.6 m)
6-conductor Cable
Native RS-485
NA
2000–2500 ft.
(609.6–762 m)
Alternate cable for power
and communications
Native RS-485
Native RS-485
Table B.3 – Summary of SS200V standard cable length options
Maximum Cable Length for Powering SS200
The table below shows the cable lengths for power when using a SmartSensor Advance
model SS200 (see Table B.4):
Cable Gauge
24 Volts
12 Volts
20 AWG (9-conductor)
600 ft. (182.88 m)
110 ft. (33.52 m)
Add RTS/CTS (9-conductor)
1000 ft. (304.8 m)
185 ft. (56.38 m)
Add TD/RD (9-conductor)
1400 ft. (426.72 m)
260 ft. (79.24 m)
14 AWG
2500 ft. (762 m)
450 ft. (137.16 m)
12 AWG
3900 ft. (1.18 km)
700 ft. (213.36 m)
10 AWG
6000 ft. (1.82 km)
1050 ft. (320.04 m)
8 AWG
9900 (3.01 km)
1750 ft. (533.4 m)
6 AWG
14000 (4.26 km)
2500 ft. (762 m)
Table B.4 – Maximum Cable Length for Power (model SS200)