Clipsal C-Bus Specifications download pdf (Page 18)

C-BUS TRAINING MANUAL - VOL 1

4.5 C-Bus Terminations

The C-Bus network uses an Unshielded Twisted Pair (UTP), Category 5 LAN cable as the

communications medium. The Clipsal catalogue number for this product is 5005C305B.

It is recommended that the C-Bus cable be terminated by twisting the pair together or by using a

bootlace crimp as shown in Figure 10.

When terminating the C Bus cable, do not solder as in Figure 11. This may cause “cold ﬂow”.

When twisting the pair together, avoid frayed terminations as shown in Figure 12.

Cat-5 cable normally consists of single strand 0.2 mm² copper in each conductor. Care must be

taken when twisting the conductors together to ensure the wire does not break. Care must also be

taken to ensure all wires are secure.

Figure 10 – Terminating with a bootlace crimp

Figure 11 – Soldering may cause cold ﬂow

Figure 12 – Avoid frayed terminations

Up to four Cat-5 conductors can be securely held using a small bootlace or ferrule crimp. Depending

on the size of crimp, several crimps may be held in a terminal.

Soldering conductors together shrinks back the insulation, increasing the likelihood of short circuits

between conductors.

Over time the solder will cold ﬂow away from the point of pressure (under the terminal screw), causing

an intermittent or high resistance joint.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 63 64

No comments

Clipsal C-Bus Specifications Page 18