1
Connection with S-COM7330 and DR-1X/E
DR-1 S-COM7330 Connection
pin 1 EXT I/O pin 1 RX Audio Connect to the DR-1 AF out
pin 2 EXT PTT pin 2 RX COR Connect to DR-1 SQL DET
pin 3
CTCSS/DCS DET
pin 3 CTCSS in Connect to DR-1 CTCSS/DCS
decode output
pin 4 SQL DET pin 4 TX PTT Connect to DR-1 EXTPTT
pin 5 GND pin 5 TX Audio Connect to DR-1 AF in
pin 6 TONE IN pin 6 GND DR-1 GND
pin 7 AF IN pin 7 GND DR-1 GND
pin 8 DISC OUT pin 8 TX pin 8 Select TX LOGIC or TX
CTCSS by JP pin
pin 9 AF OUT pin 9 GND DR-1 GND
pin 10 GND I/O Controler
pin 1 to 6 Logic output Connect to DR-1 EXT I/O
(needs S-COM programming)
pin 11 EXT PORT1 I/O Controler
pin 1 to 6 Logic output Connect to DR-1 EXT PORT1
(needs S-COM programming)
pin 12 EXT PORT2 I/O Controler
pin 1 to 6 Logic output Connect to DR-1 EXT PORT2
(needs S-COM programming)
pin 13 EXT PORT3 I/O Controler
pin 1 to 6 Logic output Connect to DR-1 EXT PORT3
(needs S-COM programming)
pin 14 EXT PORT4 I/O Controler
pin 1 to 6 Logic output Connect to DR-1 EXT PORT4
(needs S-COM programming)
pin 15 VCC OUT DC jack DC in Connect to DR-1 VCC out
The wiring paths shown by the green dotted lines require programming the S-COM7330.
pin1 EXT I/O Jumper to pin 2 EXT PTT or connect to S-COM7330 LOGIC OUT (L: EXT I/O enable)
pin2 EXT PTT EXT PTT input from S-COM7330. It will be controlled by RX COR normally.
pin3 CTCSS DET Signaling decode output (CTCSS/DCS etc)
pin4 SQL DET Noise SQL decode output (Connect to RX COR)
pin5 GND GND
pin6 Tone in Tone input from S-COM7330 (Connect to TX pin8)
pin7 AF in Modulation input from S-COM7330
pin8 Disc out RX audio output without de-emphasis
pin9 AF out RX audio output with de-emphasis
pin10 GND GND
DR-1X/E Additional Sheet
Set up instructions to interface the Triple Repeater Controller S-COM7330 with the DR-1X/E.
(NOTICE: The earlier DR-1 cannot interface with the external controller)
Modification of S-COM7330
Remove the 6 screws from each
side and 2 screws from the top
cover of the S-COM7330, then
remove the top cover.
●Hardware modifications
Change Jumper pin J10C or J11C or J3C and adjust
the semi fixed AF volume gain up for RX1 or RX2 or
RX3.
●Command Settings
• Select Path Access Mode = Carrier and CTCSS
• Select COR Filter Delay = 300 msec
• Select Dropout Delay = 0 sec
Setting of DR-1X/E
MODE :FM(FIX)←→FM(FIX)
SQL : R-TONE (100 Hz)
YAESU MUSEN CO., LTD.
