Cables and Connectors

Clear-Com recommends the following shielded cables:

Microphone cables

Belden 9207 and 9463F with the two main conductors connected to XLR pin 2 and 3 and the drain wire to pin 1.

Cat cables

Belden 1351A or 1533P with the following connections at the XLR connector:

Cat5/5e/6	XLR
White/Orange	1
Orange	1
White/Green	3
Blue	2
White/Blue	3
Green	2
White/Brown	3
Brown	2
Shield/Drain	1

It is important to connect the cable shield or drain wire to the XLR pin 1 to maintain the shield integrity throughout the cable and connector.

Note:

The total amount of cable deployed for a digital intercom line contributes to the total capacitance of the line, even though some cables might not have a beltpack connected at the other end. The more capacitance there is, the more attenuation there will be. Clear-Com recommends that you use the minimum amount of cable. For example, daisy-chain or split a cable at the far end, close to the beltpacks, rather than make two home runs to a central patch panel.