Packet Operation; [To Operate Packet Using Ej-41U] - Alinco DR-135T MkII Instruction Manual

8. PACKET OPERATION

Packet mode is high-speed data communication using a personal computer. The use of a Digital
repeater network (Digi-peaters), including satellites, offers communications with distant stations.
In order to operate in the packet mode, it is essential that the station is equipped with a personal
computer with appropriate packet software, 9 pin RS-232C cable, optional EJ-41U TNC unit or
external TNC (terminal node controller). For the operation of the EJ-41U unit or external TNC,
please refer to its respective instruction manual.

[To operate packet using EJ-41U]

Configure the radio to a known packet operation frequency.
Install the EJ-41U unit in the transceiver following the instructions below. Use an RS-232C cable
and connect it to the DSUB-9 connector on the back of transceiver and the PC.
1.
Remove the cover. Locate W1 cable on the back of DSUB-9 connector in the unit.
Disconnect it and re-connect it to CN1 on the EJ-41U unit.
2.
Locate W2 cable on the EJ-41U. Connect it to CN107 on the trasnceiver circuit
board.
34
RS-232C
W1
CN107
VCO case
Personal computer
DSUB-9
Bottom side