183
• Use good quality shielded twisted pair cable, AWG22 (0.5mm
2
) or higher.
• The overall length of the RS485 cable connecting all devices should not
exceed 1200m (4000ft).
• Every A(+) should be connected to A(+), B(-) to B(-), or it will influence the
network, or even damage the communication interface.
• When using a long communication cable to connect several devices, an anti-
signal reflecting resistor (typical value 120Ω-300Ω/0.25W) is normally added
to the end of the cable beside the last meter if the communication quality is
distorted.
5.4.3 Appearance and Dimensions
22mm
(side view)
55.60m
m
90.00mm
(top view)
Shop for Power Metering products online at:
1.877.766.5412
www.
PowerMeterStore
.com
Содержание Acuvim II
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