GAI-Tronics LE300-IP Page/Party Line Extender - Manual (Page 20)

Pub. 42004-488C
M ODEL LE300-IP P AGE /P ARTY
®
L INE E XTENDER P AGE 17 of 68
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Data Links between Line Extenders
The Model LE300-IP Line Extender is equipped with two different data link types for connecting to
another line extender. The two data link types are a T1/E1 link via the IP network and a Low Voltage
Differential Signaling (LVDS) link. The type of data link(s) used is determined by the system architecture.
It is possible to use both types at the same time to achieve complex system architectures. The data link
type, their intended use, and the applicable switch settings are described below.
T1/E1 over an Ethernet IP Network
This data link is used to connect two Model LE300-IP Line Extenders using an IP Network. The Model
LE300-IP contains an IPmux-24, which converts the data stream from its E1/T1 port into packets for
transmission over the network. These packets are transmitted via the Ethernet network port to a remote
LE300-IP device that receives the packets and converts them back to their original T1/E1 format.
The LE300-IP Line Extender should be connected to the closest Ethernet switch in the network. The
distance between LE300-IP Line Extender and the Ethernet switch determines the type of cable connection
needed. CAT5 or CAT6 cable can be used if the distance is <100 meters. The CAT5 or CAT6 cable
should be terminated with RJ-45 plugs for connection to the LE300-IP Line Extender and the Ethernet
switch.
For distances exceeding 100 meters, fiber optic cable must be used. When using fiber optic cable, a small
form-factor pluggable (SFP) module must be purchased separately and plugged into the IPmux-24 to
provide a termination point for the fiber cable inside the line extender. The optional SFP modules are
available for use with multi-mode fiber optic or single mode fiber optic cable. The SFP modules contain
LC-type fiber optic connector. Refer to the SFP data sheets for maximum cable distances.
Low Voltage Differential Signaling (LVDS) Data Link
The LVDS data link connection is used to connect two or more Model LE300-IP Line Extenders in a
“daisy chain” fashion when the line extenders are located within 10 meters of each other. The LVDS data
link requires a straight-through CAT5e cable between line extenders. Each line extender contains an
LVDS data “in” port and an LVDS data “out” port. The “out” port of the first line extender connects to the
“in” port of the next line extender. This connection scheme can be used to link up to a maximum of eight
line extenders and is typically used when multiple line extenders are installed in a central location.