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Follow the steps below to connect the Model 2158 CopperLink Inter-
faces.
Note
The Model 2158 units work in pairs. One of the units must be a
Model 2158/L (Local), and the other unit must be a Model 2158/
R (Remote). It does not matter which end is the 2158/L and
which is the 2158/R. The link is always initiated by the 1058/R.
As long as the 1058/L is powered on, the 1058/R can establish a
link by being powered on or by having its power reset.
1. To function properly, the two Model 2158'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 Model 2158 is equipped with two interface jacks that can be used
on the CopperLink interface, an RJ-45 or a terminal block. These
CopperLink interfaces are a two-wire interface. Observe the signal/pin
relationships on the Model 2158's CopperLink interface jacks.
The RJ-45 connector on the Model 2158'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.
Figure 3.
Model 2158 (RJ-45) twisted pair line interface.
The terminal block connector on the Model 2158's twisted pair interface
is polarity insensitive and is wired for a two-wire interface. The signal/pin
relationships is shown in Figure 4.
1 (no connection)
2 (no connection)
3 (no connection)
4 (2-Wire RING)
5 (2-Wire TIP)
6 (no connection)
7 (no connection)
8 (no connection)
1
2
3
4
5
6
7
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