IQ4E/.. Installation Instructions - Mounting TG201338 Issue 4, 19-Jan-2016. Applies to v3.33. 7
Installation Instructions - Mounting IQ4E/..
12
Connect Trend Current loop Network
(/LAN variants only, if required)
3 INsTAllATIoN
(continued)
T R
T R
T R
T R
panel/enclosure
ground
additional terminals
T
R
R
X
T
R
R
T
T
additional terminals
If the current loop is enabled
(default), the LAN communications
will not operate without an intact
network. If a network is not fitted a
loop back must be fitted as shown.
Not connected
2 wire system
4 wire system
T R
T R
T R
T R
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 and baud rate:
Cable
Type
Baud Rate
1k2 4k8 9k6 19k2 38k4 76k8
Trend
TP/2/2/22/
HF/200
Belden 8723
Shielded
twisted pair
2 pairs (4
conductors)
1000 m
(1090 yds)
700 m
(765
yds)
350 m
(380
yds)
175 m
(191
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 different maximum cable
lengths and baud rates. The shortest cable length (for the chosen
baud rate) applies when connecting to the IQ4E current loop.
