Adder Technology X200 Connections, Cable length advice, When used with an AdderView CATx switch

Installation & Operation

Connections

Installation of the X200 modules is straightforward and minimal configuration requirements in most cases. Each of the (up to) two moulded CAMs (Computer Access Modules) connect directly to a computer system, while the remote X200 module is at the other end of the twisted pair cable runs and attaches to the keyboard, mouse, etc.

X200 receiver units can also be used with AdderView CATx switches to allow one or more user consoles to be placed remotely from the central unit.

•Connections at each CAM (local) unit

•Connections at the X200 (remote) module

Cable length advice

The X200 modules support twisted-pair structured cabling within categories 5, 5e and 6. Of these three cable types, category 5 generally provides the best transmission of video signals because its four pairs of conductors are the most evenly twisted.

Category 5e and 6 cables use conductor pairs that are unevenly twisted in order to combat interference effects encountered within higher frequency networks. While these uneven twists work well for Ethernet signals, they can impose problems for the video signals transceived by the X200 modules. The X200 modules send the red, green and blue video signals on separate twisted pairs within the cable. If any of the colour signals are made to travel slightly further or shorter distances than the others, the result is seen as misaligned colours on screen. This is called skew and becomes more noticeable as cable runs become longer and screen resolutions/refresh rates increase.

As an approximate guide, you should expect the following maximum cable lengths:

Resolution	X200 without de-skew	X200 with de-skew
1920 x 1200	50m	50m
1600 x 1200	100m	200m
1280 x 1024	-	300m

When used with an AdderView CATx switch

It is possible to locate each CAM up to 50 metres from the AdderView CATx switch. This distance must be taken into account when planning the cable run from the X200 to the CATx switch. The total distance from any X200 to any CAM must not exceed 300 metres (or less if an X200 without de-skew is used).

REMOTE	X200	CAM	COMPUTER
USER			SYSTEM
	300 metres (980 feet)	50 metres
	maximum	(160 feet)
		maximum

Overall maximum length between any remote user and any host system must not exceed 300 metres (980 feet)

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