CTI 2500-TAP RS485 Network Tap

2500-TAP RS485 Network Tap

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CTI 2500-TAP RS-485 network taps can be used for construction a remote I/O network.

These taps use an impedance-controlled design for highest noise immunity and include built-in termination resistance which can be easily switched in- or out- of the circuit using a toggle switch.

They also include an electrical noise bleed path to chassis ground which can improve the noise immunity of your network.

Description

The 2500-TAP Remote I/O Network Tap is specially

design for attaching trunkline and dropline sections to

create 2500 Series remote I/O networks. These taps

use an impedance-controlled design for highest noise

immunity and include built-in termination resistance

which can be easily switched in- or out- of the circuit

using a toggle switch. They also include an electrical

noise bleed path to chassis ground which can

improve the noise immunity of your network.

2500-TAP

Features

• Dust and water resistant installation

• Impedance controlled design

• Built in terminating resistance

• Electrical noise bleed system for improved noise

immunity

Installation Instructions

1. Strip back 38mm (1.5 in) of the sleeving on both

ends of the cable. There are three wires exposed

when the sleeving is stripped back. Two wires

have color-coded insulation jackets and one (the

shield) is bare.

2. At both ends of the cable, remove 0.13 in.(3.3

mm) of each color-coded insulation jacket (both

ends) to expose the bare wires.

Connecting the Trunkline or Dropline to the tap

1. Loosen three terminal screws on the terminal

block.

2. Insert the stripped wires being careful to observe

the proper + / – / S location.

NOTE: Ensure that the bare shield wire is not

touching the metal housing of the tap.

NOTE: Throughout your installation, make

connections carefully to prevent wire mismatches.

Before beginning your wiring, select your color code

for + and -, and be sure to follow the code in each tap

connec-tion and each RBC connection.

3. Tighten the screws on the terminal block.

4. If this tap will be an “end” tap in the network

(requires a terminating resistor), be sure to flip

the 3 position switch from the OFF position to

either the 120ohm or 150ohm position,

depending on the cable type being used