Elecraft KRC2 Manual - Manual (Page 20)

20
KRC2 Jumper Configuration
There are 21 jumpers in the KRC2 allowing for a wide range of device options. The W1-8 block,
located near the front of the case, controls device configuration for different radio setups and
driver output logic. Table 1, Table 2 and Table 3 show the different settings.
Jmpr Jumper Out (default) Jumper In
W1 Use digital band decoding Use analog band decoding
W2 Band decode option bit 1 - see Table 2 Band decode option bit 1 - see Table 2
W3 Band decode option bit 2 - see Table 2 Band decode option bit 2 - see Table 2
W4 ACn drivers use 1 of 3 decoding ACn drivers use binary coding
W5 Xvtr drivers use 1 of 3 decoding Xvtr drivers use binary decoding
W6 No auto-report mode Place XCVR in auto-report mode
W7 Data Rate bit 0 – see Table 3 Data Rate bit 0 – see Table 3
W8 Data Rate bit 1 – see Table 3 Data Rate bit 1 – see Table 3
Table 1
W1 W2 W3 Band decode source
Out Out Out AuxBus Mode – K2 operation
Out Out In Serial Port Mode – K2 or Kenwood operation
Out In Out Digital Input through J4
Out In In Not used
In Out Out Analog input using ALC input (DB9 pin 4)
In Out In Analog input using 8R input (DB9 pin 9)
In In Out Analog input using VRDET input (DB9 Pin 7)
In In In Analog input using 8R input (DB9 pin 9) with
reference voltage on ALC input (DB9 pin 4)
Table 2
W8 W7 Data Rate
Out Out 4800
Out In 9600
In Out 19200
In In 4800
Table 3