iPECS UCP
Hardware Description and Installation Manual Issue 1.3
69
Figure 6.1.6-2 Gigabit LAN Connector (RJ-45) Pin Assignment
6.1.7 LAN Wiring Structures
The LAN wiring architecture used for connecting iPECS Modules to the LAN is dependent upon
several factors including:
Shared or iPECS only LAN infrastructure
External VoIP calling requirements
New or existing voice and/or data installation
Remote LAN power or local AC power for iPECS Phones
The “PC” LAN port of equipped LIP Phones can be connected to the user’s desktop using a
standard LAN cable terminated with RJ-45 LAN jacks. The LAN jack is wired to an Ethernet
switch, which has access to the iPECS UCP, other iPECS Modules and LIP Phones. This
connection can be through a connection to the same switch or by an indirect connection through
multiple switches.
For a new installation or, where LAN power to the LIP Phone is desired, the ES8GP can be
employed for the corporate LAN. For existing installations, it may be necessary to replace existing
switches in a shared environment in order to provide remote power to the LIP Phones.
In the shared environment, both data and voice will have access to the WAN, which also permits
external VoIP calling. In the non-shared LAN environments, the system must be connected to the
WAN to support external VoIP connections.
Due to the advantages of the shared environment, support for remote LAN power, and external
VoIP calling, the ES8GP, which is a standard Ethernet switch, should be employed. The
recommended structure, so called “hierarchal” wiring, employs all “straight” LAN cables (MDI to
MDIX) as shown in Figure 6.1.7-1. Additional ES8GP Modules are connected using the UPLINK
port to the switched ports of the primary ES8GP. A sufficient number of ES8GP modules are
connected to provide the total number of ports required. For example, in case of an 8-CO Line
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