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5. Installation
When the mDSL Line Driver has been properly configured, it may be connected to
the DSL twisted-pair interface, the 10BASE-T Ethernet Interface, and the power
source. This section describes these connections.
Figure 5-1. Connectors on the mDSL Line Driver.
5.1 Connecting the DSL Interface
The mDSL Line Driver supports communication between 10BASE-T hubs or
workstations at distances to 5 miles (8 km) over 24 AWG (0.5 mm) twisted-pair
wire. There are two requirements for installing the mDSL Line Driver:
1. These units operate as a pair. Both units at the end of the twisted-pair DSL
span must be set for the same DTE rate.
2. To function properly, the mDSL Line Driver needs one twisted pair of
metallic wire. This twisted pair must be unconditioned, dry, metallic wire,
between 19 (0.9 mm) and 26 AWG (0.4 mm); the higher number gauges will
limit distance. Standard dial-up telephone circuits, leased circuits that run
through signal equalization equipment, or standard, flat modular telephone
type cable are not acceptable.
The RJ-45 connector on the mDSL Line Driver’s twisted-pair interface is polarity
insensitive and is wired for a two-wire interface. The signal/pin relationships are
shown in Figure 5-2.
CHAPTER 5: Installation
Power
DSL
Interface
DSL
interface
10BASE-T
interface
