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2-WIRE SHORT-RANGE DSL LINE DRIVER (HDSL WITH V.35 OR X.21)
3. Configuration
The HDSL Line Driver is equipped with two sets of eight DIP switches. This
chapter describes switch locations and explains all possible configurations.
Configuring the Hardware DIP Switches
The 16 external switches are grouped into two eight-switch sets. They’re externally
accessible from the underside of the HDSL Line Driver (see Figure 3-1).
Figure 3-1. Underside of the HDSL Line Driver,
showing the location of the DIP switches.
The two sets of DIP switches on the underside of the HDSL Line Driver are called
S2 and S3. As Figure 3-2 shows, the orientation of all DIP switches is the same with
respect to ON and OFF positions.
Figure 3-2. Close-up of configuration switches
(all sets are identical in appearance).
ON
OFF
