EF-701M INTERFACE 2-11
6.Lift off the cover.
7.Make the necessary adjustments of jumpers P3 and P4 (shown in the following table).
To set a jumper to the closed position, plug it onto both pins. To set a jumper to the
open position, plug it onto only one of the pins.
Table 2-1: P3 and P4 jumper settings
8.For reassembly, reverse steps 1 through 6.
Note: The potentiometer (R13) is used to factory tune the 20-kHz call-signal detection
circuitry. It should be adjusted only by qualified personnel.
BAUD 1 BAUD 2 RATE
Open Open 19.2 kBaud
Closed Open 9.6 kBaud
Open Closed 4.8 kBaud
Closed Closed 2.4 kBaud
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