TREND IQ422 - Page 7

IQ422, IQ4NC/00, IQ4NC/12 Controllers Installation Instructions - Mounting TG201264 Issue 12, 04-Feb-2020. Applies to v4.30 7
Installation Instructions - Mounting IQ422, IQ4NC/00, IQ4NC/12
11
Connect Trend Current Loop Network (if required - applicable to IQ4NC or IQ422/LAN only)
3 INSTALLATION (continued)
TR
TR
TRTR
panel/enclosure
ground
T
R
R
X
T
R
R
T
T
If the current loop Lan is enabled
(default), the Lan communications
will not operate without an intact
network. If a network is not tted a
loop back must be tted as shown.
Not connected
2 wire system 4 wire system
TR
TR
TRTR
panel/enclosure
ground
T
R
R
X
T
Terminal size: 0.14 to 2.5 mm
2
(22 to 12 AWG).
Terminal screw torque: 0.45 to 0.62 Nm (4 to 5.5 lb.in).
Maximum cable length depends on cable type, see table below:
Cable Type
Baud Rate
1k2 4k8 9k6 19k2 38k4
Trend TP/2/2/22/HF/200
Belden 8723
Shielded twisted pair
2 pairs (4
conductors)
1000 m
(1090 yds)
700m
(765
yds)
350m
(380
yds)
Trend TP/1/1/22/HF/200
Belden 8761
Shielded twisted pair
1 pair (2 conductors)
Belden 9182
Belden 9207
Twinaxial (2
conductors)
Note: Adjacent devices may specify dierent maximum cable lengths and baud
rates. The shortest cable length (for the chosen baud rate) applies when connecting
to the IQ422, IQ4NC/00, IQ4NC/12 current loop.
Additional terminals
additional terminals