Motorola 68P02958C00-B - Manual (Page 269)

APPENDIX A:
RS232 Adapter Cables
A-3
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 8-pin Connector
(on RTU)
9-pin Male Direction
TX-DATA 1
→
3 from RTU
RX-DATA 2
←
2 to RTU
CTS 3
←
8 to RTU
GND 4 5 -
CD (Rec line) 5
←
1 to RTU
RTS 6
→
7 from RTU
DTR 8
→
4 from RTU
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 8-pin Connector
(on RTU)
15-pin Male Direction
TX-DATA 1
→
13 from RTU
RX-DATA 2
←
11 to RTU
CTS 3
←
1 to RTU
GND 4 8
RADIO_GND/
EMERGENCY -
DTR 8
→
15 from RTU