10 Installation of GRAFIK5000 / GRAFIK6000 / GRAFIK7000 System
2000 ft (600 m) max.
Terminal 1 & 2
Wires Sizes
#12 AWG
#14 AWG
#16 AWG
#18 AWG
2.5 mm
2
1.0 mm
2
Max. CSD
Link Length
2000 ft. (610 m)
1400 ft. (425 m)
900 ft. (275 m)
600 ft. (180 m)
450 m (1500 ft.)
200 m (650 ft.)
Notice
If Link Terminators (LT-1) are not used,
or improper wiring topology is
employed, the system will not
communicate.
Daisy chain wiring - do not home run wiring.
RS485 wiring is the Class 2 / PELV wiring used
for the following links:
• Control Station Device Link(s)
• Power Panel Link
• Interprocessor Link (if using the RS485
connection option)
• User Interface Link (if using the RS485
connection option)
Specifications and Notes -
• Do not run RS485 wiring with line (mains)
voltage wiring
• Each link must be daisy-chained. Do not home
run wiring
• The Processor Panel does not need to be at
an end of any RS485 Link
• Use a Link Terminator at the beginning and
end of each RS485 Link
• Connections to numbered terminals are wired
1 to 1, 2 to 2, 3 to 3, etc... throughout the link
• Total length of any RS485 wiring may not be
more than 2,000 ft. This distance is based on
proper shielding on the twisted shielded pair,
#12 AWG wire to terminal 1 and terminal 2 of
the Control Station Device (CSD) Link, and the
use of link terminators (LT-1s) at each end of
each link. If smaller wire is used, the max CSD
Link length must be de-rated - see chart
• RS485 communication is a stream of 5V data
that all of the products on the link understand.
The details listed on this page help to keep the
data understandable:
- proper shielding blocks noise and has low
capacitance (which would reduce the signal)
- LT-1’s stop the end of the link from bouncing
the signal back onto the link
- daisy-chaining prevents the data from being
divided, and keeps the number of ends of the
link to two
- #12 AWG wire minimizes the voltage drop
along the link
LT-1 LT-1
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