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- FT727R.1
-
- Subject: YAESU FT-727R CAT SYSTEM INTERFACING AND CONTROL INFORMATION
-
- This information describes the hardware and software requirements of
- the CAT (Computer Aided Tranceiver) System in the FT-727R.
-
- Connections
-
- Four connections are used by the CAT SystemL three at the CAT jack,
- illustrated below, and one (Signal Ground) at the outer contact of the
- MIC or EAR jack.
-
- DO NOT SHORT THE OUTER CONTACT OF THE CAT JACK TO GROUND!!!
-
- [Diagram of the CAT plug:
- -Looks like a stereo audio jack of the appropriate size.
- -The outer sleeve is +6 to +12 V DC (Battery Voltage) I do not think
- this line needs to be connected.
- -The middle contact is the Serial KeyCode Input.
- -The center contact is the Serial Meter Output (00h to 0Fh).
- See the manual for further description.
-
- Data Format:
-
- All serial data consists of single byte binary codes sent at 4800
- baud, TTL levels, with two INVERTED stop bits and one INVERTED start
- bit.
- CONTINUED IN FILE FT727R.2