Patton electronic 1212E ユーザーズマニュアル

Connecting the Line Interface

CopperLink 1211E/1212E User Manual

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 temperature, 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+.

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.

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. 

1. To 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 (

The RJ-45 connector on the CL1212E’s twisted pair interface is polarity insensitive and is wired for a two-wire 
interface. The signal/pin relationship is shown in 

.

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.