1. Place DS2154 in location marked U1.
2. Place 2.048 MHz oscillator in location marked X1.
3. Remove and replace Rr.
4. Cut trace and place Rt, see note 3 below.

1. Place DS2152 in location marked U1.
2. Place 1.544 MHz oscillator in location marked X1.
3. Remove and replace Rr.
4. Remove Rt and solder wire in place.

Notes:

1. Recommended oscillators: NTH039A-1.544000 & NTH039A-2.04800.
   
   Saronix
   151 Laura Lane
   Palo Alto, CA 94303
   Phone: (415) 856-6900
   Fax: (415) 856-4732
   http://www.saronix.com
   
   
2. The DS2152DK and DS2154DK are both shipped with a 1:1.15 transformer (PE-65388) in the transmit path.Some of the configurations in the data sheets specify a 1:1.36 transformer, PE-64937 is a 1:1.36 transformer available from Pulse Engineering.
   
   Pulse Engineering
   P.O. Box 12236
   San Diego, CA 92112
   Phone: (619) 674-8100
   Fax: (619) 674-8262
   http://www.pulseeng.com
   
   
3. The DS2152DK is shipped without R25 & R26, the kit is configured with Rt=0Ω by shorting the path on the printed circuit board. In order to place resistors, Rt≠0, the traces must be cut. The locations to cut can be found by turning the PCB over and locating the trace that connects the through holes at either end of the R25 & R26 resistors. Carefully cut them with an X-acto knife, and solder the resistors in place on the top side of the PCB.