User guide

MS-DMT Guide v1.04
Released 05-30-2014
126
MICOM
CAT PTT
9600, 8O1
Supports models MICOM-1, 2E, 2B, 2BF, 2BT, 2EF, 2ES, 2ET-
RDP, 2ET-RDP2, 2MF, 2R, 2RS, 2TS, RM125, RM125R,
RM500, RM500E, RM500R, RM1000, 3F, 3R, 3T, RDP3-DHS,
MICOM-H, MICOM-Z and perhaps others.
To use a radio with no control head Short pins 13 and 14.
Either the MIC or AUX port of the radio using TXD, RXD and
GND will work. Refer to your radios manual. Interfacing to
the PC is standard RS-232 levels with straight wiring.
If using the rear J3 Accessory connector the RX and TX audio
lines are differential and must be wired using 600 or 1,000
ohm isolation transformers.
Ready to go J3 cables complete with RS-232 DTR line opto
isolated PTT are available from Bill Holland, KC2CNB,
(http://hollandelectronics.net/ or 1-609-693-7281) at a
reasonable cost. Just tell him it’s for MARS-ALE and if you
want a DB9 or DB25 on the PC side and the cable length you
require between the PC and radio.
NOTE: CAT PTT can be used when interface via either the
MIC port or rear J3 Accessory port.
NOTE: The DATA filter of 3300 only works if programmed
into a memory channel.
NOTE: The MICOM-2BF, MICOM-2MF and MICOM-H
Amateur Radio band version and perhaps others require the
FLN2423 RS-232 option installed for computer control via J3,
however the MIC port TXD, RXD, GND lines can be used for
CAT control without the FLN2423.
PRC1099A
CAT PTT
Use for DATRON PRC1099A.
SIENNA
CAT PTT
9600, 8N1
SIENNA directly supports RS232 RTS line for PTT if enabled.