Mototrbo and AlphaCom interfacing
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This article describes how the AlphaCom can be integrated to the digital radio system MOTOTRBO from Motorola. Most suitable radio model is DM3600 (display model), but for basic functionality also DM3400 can be used. The interface between AlphaCom and the radio is either the IP-ARIO unit or the FBSAR board.
Contents
Functionality
Increased functionality is achieved when using data communication between the AlphaCom and the MOTOTRBO radio. The MOTOTRBO Extended Control and Management Protocol (XCMP) allows the AlphaCom to control and manage the MOTOTRBO radio. If more than groupcall functionality is required, an XCMP converter model DMR621 from Motorola is required. The converter is connected to the serial port on the IP-ARIO (RS232) and to the accessory port on MOTOTRBO radio (USB).
Without XCMP converter
- Without the XCMP converter only basic groupcall is supported (no caller ID)
With XCMP converter
With the XCMP converter and EventHandler configuration the following functionality has been tested:
- Groupcall in fixed group (M-key is PTT)
- Semi-duplex private call to selectable MOTOTRBO radio
- Incoming group and private call to predefined intercom station
- Predefined text messages to MOTOTRBO radio
- Call Alert to MOTOTRBO radio
- Display of Caller ID
The following functionality is currently not supported:
- Receiving of text messages from AlphaCom (radio firmware issue). Which means that the radio handsets cannot receive for instance Call Request
The following functionality has not been tested yet:
- Incoming Emergency Call
- Talkgroup change
- Remote monitor (listen in at radio)
Connections
Connections between the MOTOTRBO radio and IP-ARIO:
- RX audio to Radio IN (Motorola 770 mV nom.)
- TX audio to Radio OUT (Motorola 80 mV nom.)
- PTT to RCO output (active low)
- Audio is asymmetric, DC-block capacitor is required in TX audio line to radio.
- Ignition input of the radio needs to be connected to +12V to power-up the radio automatically.
- Optional: XCMP converter. The adapter is connected to the serial port on the IP-ARIO and to the accessory port on MOTOTRBO radio (USB).
Configuration
Outgoing call to radio:
In Users & Stations, set the radio interface (IPARIO or FBSAR) to Station Type = PNCI. This is to allow further dialling while connected to the interface, without the digits intepreted by the AlphaCom.
Event:
Event Owner: Stations w/UDP 8 (all stations) Event type: 25 - Event trigger with parameter Subevent: 255 When Change To: ON When Related To: The IPARIO interface Action: WUDD 501 %op(%udd(501),+,1) WUDD 502 %sev WUDD 503 %op(%op(%udd(503),*,10),+,%udd(502)) IF %op(%udd(501),=,4) $DSPL L%1.dir U19 031354 'Call: %udd(503) M=PTT' EDO 1 "AT+CCR=1,4,1,%udd(503)\r" LOG "=> AT+CCR=1,4,1,%udd(503)" WUDD 504 1 ENDIF
EDIO 1 is used to receive data from the Mototrbo radio:
Event:
Event Owner: EDI Text Config Event type: 28 - EDI Text Subevent: 1 When Change To: N/A When Related To: N/A Action:
LOG "<= EDI %sev: %edi" TMP 0 "%sscan(%edi,+)"
IF %scmp(%scutf(%TMP(0), ,0),+XCMP-CALLCTRLBRDCST) TMP 1 "%scutc(%TMP(0),21,0)" TMP 2 "%scutc(%scutf(%TMP(1),\,,0),9,0)" TMP 3 "%scutc(%scutf(%TMP(1),\,,1),10,0)" TMP 4 "%scutc(%scutf(%TMP(1),\,,2),11,0)"
LOG "=> EDI %sev: Call from: %TMP(2)" LOG "=> EDI %sev: Call Type: %TMP(3)" LOG "=> EDI %sev: Call State: %TMP(4)"
IF %op(%TMP(4),=,1) WUDD 5 1 LOG "=> EDI %sev: New Incoming call" $DSPL L103 U19 031314 'CH %sev: %TMP(2)' $DSPL L104 U19 031314 'CH %sev: %TMP(2)' $DIP L103 "dici 1" $DIP L104 "dici 1"
IF %udd(301) LOG "=> EDI %sev: Patch start" IF %op(%TMP(2),>=,203) $CONF_TALK L11%sev U3 U1 IND 13 %op(16,+,%sev) 2 3 ON LOG "$CONF_TALK L11%sev U3 U1" ENDIF ENDIF
IF %op(%udd(301),=,0) $VOX 01 L820%sev ENDIF
ENDIF
IF %op(%TMP(4),=,2) LOG "=> EDI %sev: Call in progress" $DSPL L103 U19 031314 'CH %sev: %TMP(2)' $DSPL L104 U19 031314 'CH %sev: %TMP(2)' $DIP L103 "dici 1" $DIP L104 "dici 1"
IF %udd(301) IF %op(%TMP(2),>=,203) $CONF_TALK L11%sev U1 U1 IND 13 %op(16,+,%sev) 2 3 ON LOG "$CONF_TALK L11%sev U1 U1" ENDIF ENDIF
ENDIF
IF %op(%TMP(4),=,3) WUDD 5 0 LOG "=> EDI %sev: End of Call" $DSPL L103 U19 031314 $DSPL L104 U19 031314 $DIP L103 "dici 1" $DIP L104 "dici 1"
IF %udd(301) IF %op(%TMP(2),>=,203) $CONF_TALK_STOP L11%sev IND 13 %op(16,+,%sev) 2 3 OFF LOG "=> EDI %sev: $CONF_TALK_STOP L11%sev" ENDIF ENDIF
IF %op(%udd(301),=,0) $VOX 00 L820%sev WUDD 5 0 ENDIF
ENDIF
IF %op(%TMP(4),=,7) LOG "=> EDI %sev: Call ceased: %TMP(2)" IF %udd(301) IF %op(%TMP(2),>=,203) $CONF_TALK_STOP L11%sev IND 13 %op(16,+,%sev) 2 3 OFF LOG "=> EDI %sev: $CONF_TALK_STOP L11%sev" ENDIF ENDIF ENDIF
ENDIF