Sensor Wiring
68
Modline 5
4.6
Terminal Strip Plate – Sensor Interconnecting Cable Installation
Clamp the cable shield to the shield clamp on the left side of the Terminal Strip Plate.
Insert the 9.5 inches (241.3 mm) long Red and Red/White twisted pair through the ceramic ferrite core
supplied with the plate. Keep the exposed wire length between the shielded cable end and the ferrite
core as short possible. Maintain enough length to allow the core to be inserted into its mounting clip.
Bring the Red and Red/White pair around the outside of the core as tight and as close to the core surface
as possible. Repeat until 2 wraps have been completed as shown.
Cut the pair to the required length for connection to the terminal strip. Strip wire 3/8 inch (10 mm) and
tin with solder.
Route all twisted wire pairs to their corresponding terminals identified by wire color. Insert the tinned
wire ends of each color coded wire into its terminal and tighten.
The 100 Ohm 1 watt fusible resistor placed from the ground stud to power supply common is not shown
in these illustrations.
Figure 59
Figure 60
4.7
Connecting Device Cables to Terminal Strip Plate
4.7.1
Recommended Cable Types
To maintain signal integrity and reduce noise pick-up, twisted pair shielded cables with overall foil and
braid shielding should be used for connecting to all Sensor inputs and outputs. Belden low capacitance
computer cable types 9829, 9830, 9831, 9832, 9839 and 9833, or equivalent cables are recommended. Each
of these cables has a different number of wire pairs varying in quantity from 2 to 7 pairs.
The cable selected should have a twisted pair nominal impedance of 100 ohms and nominal capacitance
between conductors should not exceed 15.5 pF/ft. (50.9 pF/m).
Prepare the cables as explained in Section 4.5
Sensor Interconnecting Cable Preparation
Ground cable shields on the Terminal Strip Plate by inserting the prepared braid under the shield
clamps.
