1.8.3  
Shielded Cables for LAN, WAN and DMZ Connections 
 
Compliance with CE requirements on electromagnetic capability of communication systems and their LAN, WAN and DMZ connections requires the following:
 •   Communication systems may only be operated using shielded connection cables. This means that a Category 5 shielded cable (CAT.5 cable) at least 3m in length must run between the shielded LAN, WAN and DMZ connection ports on the communication system and the connection to the building installation or to external active components. The cable shield on the end of the cable connected to the building installation or external active components must be grounded (connected to building potential equalization).
 •   On shorter connections with an external active component (LAN switch or similar), you must also use a Category 5 shielded cable (CAT.5 cable). However, the active component must have a corresponding shielded LAN port, whose shielded port is grounded (connected to building potential equalization).
 •   Shielding properties on the cable components must fulfil the requirements of the European EN 50173-1 "Generic cabling systems" norm and the links contained therein at the least. The European EN 50173-1 norm is derived from the global ISO/IEC 11801 norm.
 •   Building installations equipped with consistently shielded, symmetrical copper cables according to the requirements laid out in Class D of the EN 50173-1 norm fulfill the conditions set out above. Class D can be achieved, for example, by installing Category 5 (CAT.5) components (cables, terminal boxes, connection cables, etc.).
 •   In the North-American market, UTP cabling (US EIA/TIA 568 A norm) is usually installed. Therefore, in this region, the following applies to LAN connections: communication systems can only be operated using shielded connection cables. This means that a Category 5 shielded cable (CAT.5 cable) at least 3m in length must run between the shielded LAN, WAN and DMZ connection ports on the communication system and the connection to the building installation or to external active components. The cable shield on the end of the cable connected to the building installation or external active components must be grounded (connected to building potential equalization).
 •   For LAN connection to modules in LTUs, please refer to the notes on shielded connections on the LTU frame outlet point.

HiPath 3000/5000 V8, Service Documentation, Issue 10   up Top
Disclaimer & Copyright   ID: P31003H3580S100017620   2011-01-24