Patton electronic 2174 user manual Connecting The Line Interface

3.1 CONNECTING THE LINE INTERFACE

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-

CAUTION perature, flammability, and mechanical serviceability.

The Model 2174 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+, or 75-ohm BNC.

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 2174 CopperLINK Inter- faces.

Note The Model 2174 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.

Connecting the Line Interface for Model 2174/EUI or 2174/TB

1.To function properly, the two Model 2174s 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 Model 2174 is equipped with an RJ-45 interface jack (Figure 3) or terminal block (Figure 4) that can be used on the CopperLINK inter- face. The CopperLINK interface is a two-wire interface. Observe the signal/pin relationships on the Model 2174's CopperLINK interface jack.

The RJ-45 connector on the Model 2174's twisted pair interface is polar- ity insensitive and is wired for a two-wire interface. The signal/pin rela- tionship is shown in Figure 3.

	1 (no connection)
1	2 (no connection)

23 (no connection)

44 (RING)

55 (TIP)

6	6 (no connection)
7
	7 (no connection)
8

8 (no connection)

Figure 3. Model 2174 (RJ-45) twisted pair line interfac.

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