Motorola MOSCAD 68P02958C00-B User Manual page 269

Connection to VRM650/VRM660 radio
To connect the RTU (via Port 2 or Port 3) to a VRM650/VRM660 radio, you should use the
FKN4895A adapter, which ends with the male 9-pin, D-type connector. The port should be
defined as RS232, Async, External Modem, RD-LAP, RTU (LineX).
RS232 Function
TX-DATA
RX-DATA
CTS
GND
CD (Rec line)
RTS
DTR
Connection to Conventional Astro radio
To connect the RTU (via Port 2 or Port 3) to a Conventional Astro radio, you should use the
FKN4905A adapter, which ends with the male 15-pin, D-type connector. The port should be
defined as RS-232, Async, SLIP, ASTRO SPECTRA, MDLC over IP.
RS232 Function
TX-DATA
RX-DATA
CTS
GND
DTR
8-pin Connector 9-pin Male
(on RTU)
3
1
2
2
8
3
4 5
1
5
7
6
4
8
8-pin Connector 15-pin Male
(on RTU)
13
1
11
2
1
3
4 8
RADIO_GND/
EMERGENCY
15
8
A-3
APPENDIX A:
RS232 Adapter Cables
Direction
from RTU
to RTU
to RTU
-
to RTU
from RTU
from RTU
Direction
from RTU
to RTU
to RTU
-
from RTU