Terminal Bars, Holes and Relays

Hole

A hole allows signals to be routed to the inside of a slot without passing through an actual connector. A hole is never created as a harness connector but still acts as the interface for the harness-side connection of bundles and for routing.

A hole does not have cavities. A signal/wire passes through the hole in the boundary of a slot in order to connect to something inside (for example, a splice or device). Any wire that is connected through a hole is a poke-home.

Only one harness can connect to a hole.

You use a hole if you want to route wires that do not terminate on a connector but poke home on an electrical pin of the equipment that is represented by a slot's physical device (such as a terminal bar).

You can use holes to add relays or terminal bars to designs. See Relays for information about adding relays to designs. Continue reading this topic, if you want to add terminal bars to designs.

Terminal Bar

Terminal bars are a modular interconnection system. They are used for harness-to-harness interfaces as well as to implement equipotentials. The phrase 'terminal bar' indicates a complete assembly that includes:

Conductive bar (a mounting rail or DIN rail)
Several terminal blocks mounted on the bar
Terminal block connectors (also known as plug-in terminals) mated to some of the terminal blocks

If you are using a terminal bar design flow using Capital Systems Integrator, wiring in the Integrator design connects directly to a slot representing a terminal bar using holes, without any harness-side or device-side connectors.

Terminal Bar Model Concept

The terminal bar model consists of specialized pin lists and conductors. The central concept is a terminal block (a specialized device). Terminal blocks have mated terminal block connectors. They may also have internal shorts between pins, called pin groups. There are also two specialized types of conductors, the bar (or DIN rail) and jumpers.

For example:

Figure 170: Terminal Bar in Design

Note

This is a schematic representation only. You do not need to draw a diagram like this to use the terminal bar design flow in Capital Systems Integrator.

This example terminal bar shows 2 terminal blocks, each with a terminal block connector that connects to 3 of its 6 pins. One pin of each terminal block is specifically for connecting to the bar (DIN rail). Each terminal block also has 2 pin groups, each of which internally connects 3 of its pins.

The following terminal block pins are connected together:

TBLK1: PIN1, PIN2, RAILPIN; TBLK2: PIN1, PIN2, RAILPIN. These pins are shorted together by the Bar ‘DIN RAIL’, and implement a Splice for WIRE2 and WIRE4.
TBLK1: PIN3, PIN4, PIN5; TBLK2: PIN3, PIN4, PIN5. These pins are shorted together by the Jumper ‘JUMP1’, and implement a Splice for WIRE1 and WIRE3.

Terminal bar data is not displayed directly in the Design Browser (Design tab) or on a diagram.

In Capital Project Manager, you can use the following functionality for holes and terminal bars:

Default Object Names
Advanced Naming
Object Type Information

Parent Topic:

Terminal Bars, Holes and Relays