Crestron infiNET Gateway C2N-MNETGW, Руководство по эксплуатации

Страница: 33 / 40

Crestron C2N-MNETGW infiNET™ Gateway/Transceiver
Operations Guide – DOC. 6317B infiNET™ Gateway/Transceiver: C2N-MNETGW
•
29
Appendix B: Optimum RF Reception Guidelines
Many factors can affect the reliability of RF communication between
infiNET gateways, repeaters, and devices. While an effort has been made
to determine operating specifications, some specifications are not
constant. RF Communication can be limited by several factors including
but not limited to electromagnetic interference (EMI), intervening
objects, antenna orientation, and device placement. To obtain maximum
reliability and performance, some basic rules for installing infiNET
gateways are listed below.
Minimize Interference
RF reception range can be hindered by spurious EMI noise that may
interfere with or mask the desired frequency thereby reducing useable
range. EMI is generated by any electrical device at various RF noise
levels depending on the device. Sources of EMI include computers, video
equipment, digital processors, lighting dimmers, lighting ballasts, motors
or any large AC source. Every effort should be made to separate any RF
transceiver from these sources of RF noise including Audio Visual
equipment in racks. If a gateway must be installed in an equipment rack,
make sure you have ample separation between the equipment and the
gateway.
NOTE: Check any 802.11 equipment operating near the Cresnet system
to ensure that it is only using channels that are not being used by the
C2N-MNETGW. If necessary, change the gateway’s channel setting to
avoid interference. Refer to “Operating Channel” on page 17 for details.
For a description of the infiNET spectrum, refer to “Appendix A: The
infiNET Spectrum” on page 28.
Gateway Placement
Optimum reception for any infiNET gateway is obtained by installing the
gateway in an open area or shelf with a clear line of sight (no
obstructions between gateway, repeaters, and other infiNET devices).
Crestron recommends that the gateway be placed at least five to six feet
high for best results. Avoid placing gateways at a low height or on the
ground. Placing RF equipment near metal objects, walls, corners or metal
enclosures will compromise RF propagation and reception. Try to avoid