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Connecting the Line Interface 17
CopperLink 1211E/1212E User Manual 2 • Installation
Connecting the Line Interface
CAUTION
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temper
ature, flammability, and
mechanical serviceability.
The CL1212E supports communication between two peer Ethernet LAN sites over a distance of up to 10,000
ft (3 km) over 24 AWG (0.5 mm) twisted-pair wire, Cat5+.
Note Actual distance and link performance may vary depending on the environ-
ment and type/gauge of wire used.
Follow the steps below to connect the CL1212E interfaces.
Note The CL1212E units work in pairs. One of the units must be configured as a
(L) Local unit, and the other unit must be configured as a (R) Remote unit.
Connecting the Line Interface for CL1212
1. T
o function properly, the two CL1212E’s must be connected together using twisted-pair, unconditioned,
dry, metal wire, between 19 (0.9mm) and 26 AWG (0.4mm). Leased circuits that run through signal
equalization equipment are not acceptable.
2. The CL1212E is equipped
with an RJ-45 interface jack (figure 3)
The RJ-45 connector on the CL1212E’s twisted pair interface is polarity insensitiv
e and is wired for a two-wire
interface. The signal/pin relationship is shown in figure 3.
1 (no connection)
2 (no connection)
3 (no connection)
4 (RING)
5 (TIP)
6 (no connection)
7 (no connection)
8 (no connection)
1
2
3
4
5
6
7
8
Figure 3. CL1212E (RJ-45) twisted pair line interface.