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QUIKCONNECT MDSL LINE DRIVER
4. Installation
Once the QuikConnect mDSL Line Driver is properly configured, it is ready to
connect to the twisted-pair interface, to the serial port, and to the power source.
This chapter tells you how to make these connections.
4.1 Connecting the Twisted-Pair Interface
The QuikConnect mDSL Line Driver supports communication between two DTE
devices at distances to 5 miles (8 km) over 24-AWG (0.5-mm) twisted-pair wire.
Two things are essential:
1. These units work in pairs. Both units at the end of the twisted pair must have
the same 2-wire connection and DTE rate.
2. To function properly, the QuikConnect 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, or leased circuits that
run through signal equalization equipment, or standard, flat modular
telephone type cable, are
not
acceptable.
IMPORTANT!
The QuikConnect mDSL Line Driver has been optimized for performance
at high bit rates (DTE rates greater than 512 kbps). To ensure accurate
performance at these rates, please use twisted-pair line interface cable
that is at least 330 ft. (100 m) long.
The RJ-45 connector on the QuikConnect’s twisted-pair interface is polarity
insensitive and is wired for a two-wire interface. The signal/pin relationships are
shown in Figure 4-1.
Figure 4-1. RJ-45 twisted-pair line interface.
- - - - - - - - - - - - - - - - - - - - - - - - 1 (N/C)
- - - - - - - - - - - - - - - - - - - - - - - - 2 (N/C)
- - - - - - - - - - - - - - - - - - - - - - - - 3 (N/C)
- - - - - - - - - - - - - - - - - - - - - - - - 4 (Tip)
- - - - - - - - - - - - - - - - - - - - - - - - 5 (Ring)
- - - - - - - - - - - - - - - - - - - - - - - - 6 (N/C)
- - - - - - - - - - - - - - - - - - - - - - - - 7 (N/C)
- - - - - - - - - - - - - - - - - - - - - - - - 8 (N/C)
