Справочник Пользователя для USA Alinco Branch DR-135T
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8. PACKET OPERATION
RS-232C
1200 bps
FM Packet TNC
GND
GND
EXT. PTT Input
EXT. PTT Input
Packet RX OUT
1200 bps
1200 bps
Packet TX IN
1200 bps
1200 bps
DATA
IN
DATA
OUT
PTT
Personal Computer
DR-135
RS-232C
9600 bps
FM Packet TNC
GND
GND
Packet RX OUT 9600 bps
Packet TX IN 9600 bps
DATA
IN
DATA
OUT
PTT
Personal Computer
DR-135
[To operate packet using an external TNC]
Use the DSUB-9 connector to connect the radio and the PC. The pin allocation for the DSUB-9 on
the back of the unit is as follows:
the back of the unit is as follows:
1. SQC squelch signal output. Carrier in: closed. Open collector output.
2. Packet reception DATA output (9600bps) output level 500mVrms/10Kohm
3. Packet transmission DATA input (9600bps) input level 300mV/600ohm Max input level 600mV.
4. Packet reception DATA output (1200bps) output level 100mV/600ohm
5. Ground
6. No Connection
7. PTT signal input : Low (GND) : TX, Open: RX
8. 5.0Vdc output: Max current less than 50mA
9. Packet transmission DATA input (1200bps): input level 100mV/600ohm
2. Packet reception DATA output (9600bps) output level 500mVrms/10Kohm
3. Packet transmission DATA input (9600bps) input level 300mV/600ohm Max input level 600mV.
4. Packet reception DATA output (1200bps) output level 100mV/600ohm
5. Ground
6. No Connection
7. PTT signal input : Low (GND) : TX, Open: RX
8. 5.0Vdc output: Max current less than 50mA
9. Packet transmission DATA input (1200bps): input level 100mV/600ohm