10
Figure 2.
Model 2172A standalone rear panel
3.1 CONNECTING THE TWISTED-PAIR LINE INTERFACE
The Model 2172A supports communication between two peer Ethernet
LAN sites over a distance of up to 4,250 ft (1.3 km) over 24 AWG
(0.5 mm) twisted-pair wire.
Note
Actual distance and link performance may vary depending on
the environment and type/gauge of wire used.
Follow the steps below to connect the Model 2172A CopperLINK Inter-
faces.
Note
The Model 2172A units work in pairs. One of the units must be
configured as a (L) Local unit, and the other unit must be config-
ured as a (R) Remote unit. It does not matter which end is the L
and which is the R. The link is always initiated by the R unit. As
long as the L unit is powered on, the R unit can establish a link
by being powered on or by having its power reset.
The Interconnecting cables shall be acceptable for
external use and shall be rated for the proper applica-
tion with respect to voltage, current, anticipated tem-
perature, flammability, and mechanical serviceability.
Lin
e
Po
we
r
M
ad
e
in
th
e
US
A
Et
he
rn
et
Power
jack
Dual 10/100
Ethernet ports
CopperLINK
twisted-pair
RJ-45 interface
2
1
CAUTION
