Black Box ACU2222A - Manual (Page 20)

INSTALLATION
19
3.2 Interconnection Cable Requirements
To connect the Local and Remote units you will need CATx (any category 5, 5e, 6 or higher)
cable terminated with RJ45 plugs.
Interconnect cables must be solid-core type. Stranded patch cable will give poor results over
longer distances. The pairing of the cable and pinning of its connectors should normally be in
accordance with EIA-568B (see page 56).
One CATx cable is required for each video channel.
• The Primary interconnect cable connects INTERCONNECT Port 1 on the Local and
Remote units. This carries the main video channel and all data (plus audio/serial).
• A Secondary CATx cable (connected to INTERCONNECT Port 2) carries a second
video channel on dual-head units.
In order to send Keyboard, Mouse, Audio and Serial signals to the PC, the
Primary interconnect must be connected.
The Primary interconnect does not have to be connected in order to use the
keyboard attached to the Remote unit for setup. However, if the Primary
interconnect is disconnected, the keyboard cannot be used for configuration for 15
seconds after disconnection (to maintain data integrity).
With some cables, video performance may be improved by using a crossover patch
cable at each end or an alternative RJ45 pin-out (see Appendix A: Example
Applications, page 55).