User guide

8-Position DIP Switch

The DSU RouteFinder is equipped with a 8-position DIP

switch. Figure 3 shows the DIP switch, and the chart that

follows details the default positions and other options.

56781234

Figure 3. 8-position DIP switch

Position 1: OPEN* (up) Normal Mode operation

Closed (down) Loopback Mode operation

Position 2: OPEN* (up) DDS clocking

Closed (down) Internal Clocking

Positions 3 - 8: Reserved for future use.

* Denotes Factory Default setting

Note: The DIP switch settings cannot be changed externally;

you must remove the circuit board from the chassis. Refer to

the steps in the next section, V.35 Shunt Procedure, for

instructions on removing the circuit board.