Icom IC-725 Instruction Manual page 14

3-8 REMOTE JACK (CI-V)
INFORMATION
The 1C-725 can be connected through a CT-17 CI-V LEVEL
CONVERTER (optional) to a personal computer equipped
with an RS-232C port. Icom Communication Interface - V
(CI-V) controls frequency, mode, memory channels, etc.
eCT-17 CONNECTION
Up to four Icom CI-V transceivers can be connected
to a personal computer equipped with as RS-232C
AC outlet
Personal
computer
(1) CI-V CONDITION
Transmitters and receivers using the Icom СІ-М System
exchange serial information in the packet format. The
contents of a data packet can be changed by diodes D2 —
D4, D57 — D63 and D64 on the MAIN UNIT. See diagram
at right below for the location of these diodes.
ө Baud rate
Baud rate is the data transfer rate. The standard Icom CI-V
baud rate is 1200 bps.
BAUD RATE | ὈΙΘΕῈ —
"lu.
C] : Default
• Frequency data
When connecting the transceiver with the IC-735, change
the value to 4 bytes.
FREQUENCY
DATA
DIODE
(D4)
= : Default
SYSTEM INTERCONNECTIONS 3
• Address
You can set an independent address for your IC-725. The
1C-725 has the address of 28H (40) as a default value.
Figures marked with an H are hexidecimals and bracketed
figures ( ) are decimals.
D57 | D58 D59 D60 D61 D62 D63
(1) (2) (4) (8) (16) (32) (64)
Insert Insert.
diode diode
L] : Default 28H (40)
@Transceive
Transceive operation is possible using the IC-725 with
another transceiver such as the IC-781. Either transceiver
can be used as the transmitter or receiver.
он noe P
[| : Default
(2) DIODE LOCATION
Diodes are located on the PLL UNIT as shown in the
diagram below.
See p. 24 for transceiver disassembly information.
®Magnification of the diode location
Front panel side
12