User Manual

- 8 -
Wiring the Redundant Power Inputs
STEP 1: Insert the negative/positive DC wires
into the V
-/V+ terminals.
STEP 2:
To keep the DC
wires from pulling loose,
use a small flat
-
blade screwdriver to tighten the
wire
-clamp screws on the front of the terminal
block connector.
STEP 3:
Insert the plastic terminal block
connector prongs into the terminal block
receptor, which is located on the
ICF-1280I
’s top
panel.
ATTENTION
Before connecting the ICF
-1180I
to the DC power inputs, make
sure the DC power source voltage is stable.
You should also pay attention to the following:
• The temperature rating of the input connection cable should be higher
than 91°C.
• The cross sectional area of the ground wire should be at least 3.31
mm
2
.
• The terminal block plug should be suitable for 28-12 AWG
(0.0804-3.31 mm
2
) wire and a torque of 4.5 lb-in.
Fiber Cable
ST-Port Pinouts
ST-Port to ST-Port Cable Wiring
Pin Assignment
PIN
Signal Name
1
N.C.
2
N.C.
3
PROFIBUS D+
4
RTS
5
Signal common
6
5 V
7
N.C.
8
PROFIBUS D-
9
N.C.