diff --git a/ChangeLog b/ChangeLog
index c6555607..1830ab86 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -17045,3 +17045,18 @@
 	implied schema.
 2018-06-11 Fred Gleason <fredg@paravelsystems.com>
 	* Fixed a bug that broke the build when JACK support was disabled.
+	* Added a 'STATIONS.JACK_PORTS' field to the database.
+	* Incremented the database version to 287.
+	* Added an 'Initial Audio Ports' control to the 'JACK Configuration'
+	dialog in rdadmin(1).
+2018-06-12 Fred Gleason <fredg@paravelsystems.com>
+	* Changed the name of the 'Initial Audio Ports' control to
+	'Active Audio Ports' in the 'Configure JACK' dialog in rdadmin(1).
+2018-06-12 Fred Gleason <fredg@paravelsystems.com>
+	* Added a 'card-num' parameter to the 'Meter Enable' ['ME'] command
+	in caed(8).
+	* Added an 'RDCae::enableMetering()' method.
+	* Modified rdairplay(1) to enable metering explicitly.
+	* Modified rdcartslots(1) to enable metering explicitly.
+	* Modified rdlibrary(1) to enable metering explicitly.
+	* Modified rdpanel(1) to enable metering explicitly.
diff --git a/cae/cae.cpp b/cae/cae.cpp
index 10847c78..4c3d7716 100644
--- a/cae/cae.cpp
+++ b/cae/cae.cpp
@@ -171,6 +171,9 @@ MainObject::MainObject(QObject *parent,const char *name)
     argnum[i]=0;
     argptr[i]=0;
     auth[i]=false;
+    for(int j=0;j<RD_MAX_CARDS;j++) {
+      update_meters[j][i]=false;
+    }
   }
   for(int i=0;i<RD_MAX_CARDS;i++) {
     cae_driver[i]=RDStation::None;
@@ -1808,6 +1811,15 @@ void MainObject::DispatchCommand(int ch)
       return;
     }
     meter_port[ch]=port;
+    for(int i=2;i<argnum[ch];i++) {
+      sscanf(args[ch][i],"%d",&card);
+      if((card<0)||(card>=RD_MAX_CARDS)) {
+	EchoArgs(ch,'-');
+	return;
+      }
+      update_meters[card][ch]=true;
+    }
+
     EchoArgs(ch,'+');
     SendMeterOutputStatusUpdate();
     return;
@@ -1885,6 +1897,7 @@ void MainObject::KillSocket(int ch)
   auth[ch]=false;
   meter_port[ch]=0;
   for(int i=0;i<RD_MAX_CARDS;i++) {
+    update_meters[i][ch]=false;
     for(int j=0;j<RD_MAX_STREAMS;j++) {
       if(record_owner[i][j]==ch) {
 	unsigned len=0;
@@ -2307,30 +2320,35 @@ void MainObject::FreeMadDecoder(int card,int stream)
 void MainObject::SendMeterLevelUpdate(const QString &type,int cardnum,
 				      int portnum,short levels[])
 {
-  char msg[1500];
-  int n=snprintf(msg,1500,"ML %s %d %d %d %d",
-		 (const char *)type,cardnum,portnum,levels[0],levels[1]);
-  SendMeterUpdate(msg,n);
+  for(int l=0;l<CAE_MAX_CONNECTIONS;l++) {
+    if((meter_port[l]>0)&&update_meters[cardnum][l]) {
+      SendMeterUpdate(QString().sprintf("ML %s %d %d %d %d",
+	       (const char *)type,cardnum,portnum,levels[0],levels[1]),l);
+    }
+  }
 }
 
 
 void MainObject::SendStreamMeterLevelUpdate(int cardnum,int streamnum,
 					    short levels[])
 {
-  char msg[1500];
-  int n=snprintf(msg,1500,"MO %d %d %d %d",
-		 cardnum,streamnum,levels[0],levels[1]);
-  SendMeterUpdate(msg,n);
+  for(int l=0;l<CAE_MAX_CONNECTIONS;l++) {
+    if((meter_port[l]>0)&&update_meters[cardnum][l]) {
+      SendMeterUpdate(QString().sprintf("MO %d %d %d %d",
+		  cardnum,streamnum,levels[0],levels[1]),l);
+    }
+  }
 }
 
 
 void MainObject::SendMeterPositionUpdate(int cardnum,unsigned pos[])
 {
-  char msg[1500];
-  int n;
-  for(unsigned i=0;i<RD_MAX_STREAMS;i++) {
-    n=snprintf(msg,1500,"MP %d %d %d",cardnum,i,pos[i]);
-    SendMeterUpdate(msg,n);
+  for(unsigned k=0;k<RD_MAX_STREAMS;k++) {
+    for(int l=0;l<CAE_MAX_CONNECTIONS;l++) {
+      if((meter_port[l]>0)&&update_meters[cardnum][l]) {
+	SendMeterUpdate(QString().sprintf("MP %d %d %d",cardnum,k,pos[k]),l);
+      }
+    }
   }
 }
 
@@ -2341,7 +2359,12 @@ void MainObject::SendMeterOutputStatusUpdate()
     if(cae_driver[i]!=RDStation::None) {
       for(unsigned j=0;j<RD_MAX_PORTS;j++) {
 	for(unsigned k=0;k<RD_MAX_STREAMS;k++) {
-	  SendMeterOutputStatusUpdate(i,j,k);
+	  for(unsigned l=0;l<CAE_MAX_CONNECTIONS;l++) {
+	    if((meter_port[l]>0)&&update_meters[i][l]) {
+	      SendMeterUpdate(QString().sprintf("MS %d %d %d %d",i,j,k,
+					  output_status_flag[i][j][k]),l);
+	    }
+	  }
 	}
       }
     }
@@ -2351,23 +2374,20 @@ void MainObject::SendMeterOutputStatusUpdate()
 
 void MainObject::SendMeterOutputStatusUpdate(int card,int port,int stream)
 {
-  char msg[1500];
-  int n;
-  n=snprintf(msg,1500,"MS %d %d %d %d",card,port,stream,
-	     output_status_flag[card][port][stream]);
-  SendMeterUpdate(msg,n);
-}
-
-
-void MainObject::SendMeterUpdate(const char *msg,unsigned len)
-{
-  for(unsigned i=0;i<CAE_MAX_CONNECTIONS;i++) {
-    if(meter_port[i]>0) {
-      meter_socket->writeBlock(msg,len,socket[i]->peerAddress(),meter_port[i]);
+  for(unsigned l=0;l<CAE_MAX_CONNECTIONS;l++) {
+    if((meter_port[l]>0)&&update_meters[card][l]) {
+      SendMeterUpdate(QString().sprintf("MS %d %d %d %d",card,port,stream,
+				  output_status_flag[card][port][stream]),l);
     }
   }
 }
 
+void MainObject::SendMeterUpdate(const QString &msg,int conn_id)
+{
+  meter_socket->writeBlock(msg,msg.length(),socket[conn_id]->peerAddress(),
+			   meter_port[conn_id]);
+}
+
 
 int main(int argc,char *argv[])
 {
diff --git a/cae/cae.h b/cae/cae.h
index 77d11e6f..0a5fecd7 100644
--- a/cae/cae.h
+++ b/cae/cae.h
@@ -142,7 +142,7 @@ class MainObject : public QObject
   void SendMeterPositionUpdate(int cardnum,unsigned pos[]);
   void SendMeterOutputStatusUpdate();
   void SendMeterOutputStatusUpdate(int card,int port,int stream);
-  void SendMeterUpdate(const char *msg,unsigned len);
+  void SendMeterUpdate(const QString &msg,int conn_id);
   bool debug;
   unsigned system_sample_rate;
   Q_INT16 tcp_port;
@@ -165,6 +165,7 @@ class MainObject : public QObject
   bool play_pitch[RD_MAX_CARDS][RD_MAX_STREAMS];
   bool port_status[RD_MAX_CARDS][RD_MAX_PORTS];
   bool output_status_flag[RD_MAX_CARDS][RD_MAX_PORTS][RD_MAX_STREAMS];
+  bool update_meters[RD_MAX_CARDS][CAE_MAX_CONNECTIONS];
   struct {
     int card;
     int stream;
diff --git a/cae/cae_jack.cpp b/cae/cae_jack.cpp
index 4f29c281..0b64e7bf 100644
--- a/cae/cae_jack.cpp
+++ b/cae/cae_jack.cpp
@@ -41,8 +41,6 @@ jack_client_t *jack_client;
 RDMeterAverage *jack_input_meter[RD_MAX_PORTS][2];
 RDMeterAverage *jack_output_meter[RD_MAX_PORTS][2];
 RDMeterAverage *jack_stream_output_meter[RD_MAX_STREAMS][2];
-//volatile jack_default_audio_sample_t jack_input_meter[RD_MAX_PORTS][2];
-//volatile jack_default_audio_sample_t jack_output_meter[RD_MAX_PORTS][2];
 volatile jack_default_audio_sample_t 
   jack_input_volume[RD_MAX_PORTS];
 volatile jack_default_audio_sample_t 
@@ -87,10 +85,14 @@ int JackProcess(jack_nframes_t nframes, void *arg)
   //
   for(int i=0;i<RD_MAX_PORTS;i++) {
     for(int j=0;j<2;j++) {
-      jack_input_buffer[i][j]=(jack_default_audio_sample_t *)
-	jack_port_get_buffer(jack_input_port[i][j],nframes);
-      jack_output_buffer[i][j]=(jack_default_audio_sample_t *)
-	jack_port_get_buffer(jack_output_port[i][j],nframes);
+      if(jack_input_port[i][j]!=NULL) {
+	jack_input_buffer[i][j]=(jack_default_audio_sample_t *)
+	  jack_port_get_buffer(jack_input_port[i][j],nframes);
+      }
+      if(jack_output_port[i][j]!=NULL) {
+	jack_output_buffer[i][j]=(jack_default_audio_sample_t *)
+	  jack_port_get_buffer(jack_output_port[i][j],nframes);
+      }
     }
   }
 
@@ -99,8 +101,10 @@ int JackProcess(jack_nframes_t nframes, void *arg)
   //
   for(int i=0;i<RD_MAX_PORTS;i++) {
     for(int j=0;j<2;j++) {
-      for(unsigned k=0;k<nframes;k++) {
-	jack_output_buffer[i][j][k]=0.0;
+      if(jack_output_port[i][j]!=NULL) {
+	for(unsigned k=0;k<nframes;k++) {
+	  jack_output_buffer[i][j][k]=0.0;
+	}
       }
     } 
   }
@@ -112,9 +116,11 @@ int JackProcess(jack_nframes_t nframes, void *arg)
     for(int j=0;j<RD_MAX_PORTS;j++) {
       if(jack_passthrough_volume[i][j]>0.0) {
 	for(int k=0;k<2;k++) {
-	  for(unsigned l=0;l<nframes;l++) {
-	    jack_output_buffer[j][k][l]+=
-	      jack_input_buffer[i][k][l]*jack_passthrough_volume[i][j];
+	  if((jack_output_port[j][k]!=NULL)&&(jack_input_port[i][k]!=NULL)) {
+	    for(unsigned l=0;l<nframes;l++) {
+	      jack_output_buffer[j][k][l]+=
+		jack_input_buffer[i][k][l]*jack_passthrough_volume[i][j];
+	    }
 	  }
 	}
       }
@@ -125,68 +131,70 @@ int JackProcess(jack_nframes_t nframes, void *arg)
   // Process Input Streams
   //
   for(int i=0;i<RD_MAX_PORTS;i++) {
-    if(jack_recording[i]) {
-      switch(jack_input_channels[i]) {
-      case 1: // mono
-	for(unsigned j=0;j<nframes;j++) {
-	  switch(jack_input_mode[jack_card_process][i]) {
-	  case 3: // R only
-	    jack_callback_buffer[j]=jack_input_volume[i]*
-	      jack_input_buffer[i][1][j];
-	    break;
-	  case 2: // L only
-	    jack_callback_buffer[j]=jack_input_volume[i]*
-	      jack_input_buffer[i][0][j];
-	    break;
-	  case 1: // swap, sum R+L
-	  case 0: // normal, sum L+R
-	  default:
-	    jack_callback_buffer[j]=jack_input_volume[i]*
-	      (jack_input_buffer[i][0][j]+jack_input_buffer[i][1][j]);
-	    break;
-	  }
-	} // for nframes
-	n=jack_record_ring[i]->
-	  write((char *)jack_callback_buffer,
-		nframes*sizeof(jack_default_audio_sample_t))/
-	  sizeof(jack_default_audio_sample_t);
-	break;
+    if(jack_input_port[i][0]!=NULL) {
+      if(jack_recording[i]) {
+	switch(jack_input_channels[i]) {
+	case 1: // mono
+	  for(unsigned j=0;j<nframes;j++) {
+	    switch(jack_input_mode[jack_card_process][i]) {
+	    case 3: // R only
+	      jack_callback_buffer[j]=jack_input_volume[i]*
+		jack_input_buffer[i][1][j];
+	      break;
+	    case 2: // L only
+	      jack_callback_buffer[j]=jack_input_volume[i]*
+		jack_input_buffer[i][0][j];
+	      break;
+	    case 1: // swap, sum R+L
+	    case 0: // normal, sum L+R
+	    default:
+	      jack_callback_buffer[j]=jack_input_volume[i]*
+		(jack_input_buffer[i][0][j]+jack_input_buffer[i][1][j]);
+	      break;
+	    }
+	  } // for nframes
+	  n=jack_record_ring[i]->
+	    write((char *)jack_callback_buffer,
+		  nframes*sizeof(jack_default_audio_sample_t))/
+	    sizeof(jack_default_audio_sample_t);
+	  break;
 
-      case 2: // stereo
-	for(unsigned j=0;j<nframes;j++) {
-	  switch(jack_input_mode[jack_card_process][i]) {
-	  case 3: // R only
-	    memset(&jack_callback_buffer[2*j],0,
-		   sizeof(jack_input_buffer[i][0][j]));
-	    jack_callback_buffer[2*j+1]=jack_input_volume[i]*
-	      jack_input_buffer[i][1][j];
-	    break;
-	  case 2: // L only
-	    jack_callback_buffer[2*j]=jack_input_volume[i]*
-	      jack_input_buffer[i][0][j];
-	    memset(&jack_callback_buffer[2*j+1],0,
-		   sizeof(jack_input_buffer[i][1][j]));
-	    break;
-	  case 1: // swap
-	    jack_callback_buffer[2*j]=jack_input_volume[i]*
-	      jack_input_buffer[i][1][j];
-	    jack_callback_buffer[2*j+1]=jack_input_volume[i]*
-	      jack_input_buffer[i][0][j];
-	    break;
-	  case 0: // normal
-	  default:
-	    jack_callback_buffer[2*j]=jack_input_volume[i]*
-	      jack_input_buffer[i][0][j];
-	    jack_callback_buffer[2*j+1]=jack_input_volume[i]*
-	      jack_input_buffer[i][1][j];
-	    break;
-	  }
-	} // for nframes
-	n=jack_record_ring[i]->
-	  write((char *)jack_callback_buffer,
-		2*nframes*sizeof(jack_default_audio_sample_t))/
-	  (2*sizeof(jack_default_audio_sample_t));
-	break;
+	case 2: // stereo
+	  for(unsigned j=0;j<nframes;j++) {
+	    switch(jack_input_mode[jack_card_process][i]) {
+	    case 3: // R only
+	      memset(&jack_callback_buffer[2*j],0,
+		     sizeof(jack_input_buffer[i][0][j]));
+	      jack_callback_buffer[2*j+1]=jack_input_volume[i]*
+		jack_input_buffer[i][1][j];
+	      break;
+	    case 2: // L only
+	      jack_callback_buffer[2*j]=jack_input_volume[i]*
+		jack_input_buffer[i][0][j];
+	      memset(&jack_callback_buffer[2*j+1],0,
+		     sizeof(jack_input_buffer[i][1][j]));
+	      break;
+	    case 1: // swap
+	      jack_callback_buffer[2*j]=jack_input_volume[i]*
+		jack_input_buffer[i][1][j];
+	      jack_callback_buffer[2*j+1]=jack_input_volume[i]*
+		jack_input_buffer[i][0][j];
+	      break;
+	    case 0: // normal
+	    default:
+	      jack_callback_buffer[2*j]=jack_input_volume[i]*
+		jack_input_buffer[i][0][j];
+	      jack_callback_buffer[2*j+1]=jack_input_volume[i]*
+		jack_input_buffer[i][1][j];
+	      break;
+	    }
+	  } // for nframes
+	  n=jack_record_ring[i]->
+	    write((char *)jack_callback_buffer,
+		  2*nframes*sizeof(jack_default_audio_sample_t))/
+	    (2*sizeof(jack_default_audio_sample_t));
+	  break;
+	}
       }
     }
   }
@@ -229,37 +237,39 @@ int JackProcess(jack_nframes_t nframes, void *arg)
 	break;
       }
       for(int j=0;j<RD_MAX_PORTS;j++) {
-	if(jack_output_volume[j][i]>0.0) {
-	  switch(jack_output_channels[i]) {
-	  case 1:
-	    for(unsigned k=0;k<n;k++) {
-	      jack_output_buffer[j][0][k]=
-		jack_output_buffer[j][0][k]+jack_output_volume[j][i]*
-		jack_callback_buffer[k];
-	      jack_output_buffer[j][1][k]=
-		jack_output_buffer[j][1][k]+jack_output_volume[j][i]*
-		jack_callback_buffer[k];
-	    }
-	    if(n!=nframes && jack_eof[i]) {
-	      jack_stopping[i]=true;
-	      jack_playing[i]=false;
-	    }
-	    break;
+	if(jack_output_port[j][0]!=NULL) {
+	  if(jack_output_volume[j][i]>0.0) {
+	    switch(jack_output_channels[i]) {
+	    case 1:
+	      for(unsigned k=0;k<n;k++) {
+		jack_output_buffer[j][0][k]=
+		  jack_output_buffer[j][0][k]+jack_output_volume[j][i]*
+		  jack_callback_buffer[k];
+		jack_output_buffer[j][1][k]=
+		  jack_output_buffer[j][1][k]+jack_output_volume[j][i]*
+		  jack_callback_buffer[k];
+	      }
+	      if(n!=nframes && jack_eof[i]) {
+		jack_stopping[i]=true;
+		jack_playing[i]=false;
+	      }
+	      break;
 
-	  case 2:
-	    for(unsigned k=0;k<n;k++) {
-	      jack_output_buffer[j][0][k]=
-		jack_output_buffer[j][0][k]+jack_output_volume[j][i]*
-		jack_callback_buffer[k*2];
-	      jack_output_buffer[j][1][k]=
-		jack_output_buffer[j][1][k]+jack_output_volume[j][i]*
-		jack_callback_buffer[k*2+1];
+	    case 2:
+	      for(unsigned k=0;k<n;k++) {
+		jack_output_buffer[j][0][k]=
+		  jack_output_buffer[j][0][k]+jack_output_volume[j][i]*
+		  jack_callback_buffer[k*2];
+		jack_output_buffer[j][1][k]=
+		  jack_output_buffer[j][1][k]+jack_output_volume[j][i]*
+		  jack_callback_buffer[k*2+1];
+	      }
+	      if(n!=nframes && jack_eof[i]) {
+		jack_stopping[i]=true;
+		jack_playing[i]=false;
+	      }
+	      break;
 	    }
-	    if(n!=nframes && jack_eof[i]) {
-	      jack_stopping[i]=true;
-	      jack_playing[i]=false;
-	    }
-	    break;
 	  }
 	}
       }
@@ -272,47 +282,49 @@ int JackProcess(jack_nframes_t nframes, void *arg)
   // Process Meters
   //
   for(int i=0;i<RD_MAX_PORTS;i++) {
-    // input meters (taking input mode into account)
-    in_meter[0]=0.0;
-    in_meter[1]=0.0;
-    for(unsigned k=0;k<nframes;k++) {
-      switch(jack_input_mode[jack_card_process][i]) {
-      case 3: // R only
-	if(jack_input_buffer[i][1][k]>in_meter[1]) 
-	  in_meter[1]=jack_input_buffer[i][1][k];
-	break;
-      case 2: // L only
-	if(jack_input_buffer[i][0][k]>in_meter[0]) 
-	  in_meter[0]=jack_input_buffer[i][0][k];
-	break;
-      case 1: // swap
-	if(jack_input_buffer[i][0][k]>in_meter[1]) 
-	  in_meter[1]=jack_input_buffer[i][0][k];
-	if(jack_input_buffer[i][1][k]>in_meter[0]) 
-	  in_meter[0]=jack_input_buffer[i][1][k];
-	break;
-      case 0: // normal
-      default:
-	if(jack_input_buffer[i][0][k]>in_meter[0]) 
-	  in_meter[0]=jack_input_buffer[i][0][k];
-	if(jack_input_buffer[i][1][k]>in_meter[1]) 
-	  in_meter[1]=jack_input_buffer[i][1][k];
-	break;
-      }
-    } // for nframes
-    jack_input_meter[i][0]->addValue(in_meter[0]);
-    jack_input_meter[i][1]->addValue(in_meter[1]);
-
-    // output meters
-    for(int j=0;j<2;j++) {
-      out_meter[j]=0.0;
+    if(jack_input_port[i][0]!=NULL) {
+      // input meters (taking input mode into account)
+      in_meter[0]=0.0;
+      in_meter[1]=0.0;
       for(unsigned k=0;k<nframes;k++) {
-	if(jack_output_buffer[i][j][k]>out_meter[j]) 
-	  out_meter[j]=jack_output_buffer[i][j][k];
-      }
-      jack_output_meter[i][j]->addValue(out_meter[j]);
+	switch(jack_input_mode[jack_card_process][i]) {
+	case 3: // R only
+	  if(jack_input_buffer[i][1][k]>in_meter[1]) 
+	    in_meter[1]=jack_input_buffer[i][1][k];
+	  break;
+	case 2: // L only
+	  if(jack_input_buffer[i][0][k]>in_meter[0]) 
+	    in_meter[0]=jack_input_buffer[i][0][k];
+	  break;
+	case 1: // swap
+	  if(jack_input_buffer[i][0][k]>in_meter[1]) 
+	    in_meter[1]=jack_input_buffer[i][0][k];
+	  if(jack_input_buffer[i][1][k]>in_meter[0]) 
+	    in_meter[0]=jack_input_buffer[i][1][k];
+	  break;
+	case 0: // normal
+	default:
+	  if(jack_input_buffer[i][0][k]>in_meter[0]) 
+	    in_meter[0]=jack_input_buffer[i][0][k];
+	  if(jack_input_buffer[i][1][k]>in_meter[1]) 
+	    in_meter[1]=jack_input_buffer[i][1][k];
+	  break;
+	}
+      } // for nframes
+      jack_input_meter[i][0]->addValue(in_meter[0]);
+      jack_input_meter[i][1]->addValue(in_meter[1]);
+    }
+    if(jack_output_port[i][0]!=NULL) {
+      // output meters
+      for(int j=0;j<2;j++) {
+	out_meter[j]=0.0;
+	for(unsigned k=0;k<nframes;k++) {
+	  if(jack_output_buffer[i][j][k]>out_meter[j]) 
+	    out_meter[j]=jack_output_buffer[i][j][k];
+	}
+	jack_output_meter[i][j]->addValue(out_meter[j]);
+      }
     }
-
   } // for RD_MAX_PORTS
   return 0;
 }
@@ -631,6 +643,12 @@ void MainObject::jackInit(RDStation *station)
   // Register Ports
   //
   for(int i=0;i<RD_MAX_PORTS;i++) {
+    for(int j=0;j<2;j++) {
+      jack_output_port[i][j]=NULL;
+      jack_input_port[i][j]=NULL;
+    }
+  }
+  for(int i=0;i<station->jackPorts();i++) {
     name=QString().sprintf("playout_%dL",i);
     jack_output_port[i][0]=
       jack_port_register(jack_client,(const char *)name,
diff --git a/docs/apis/cae.xml b/docs/apis/cae.xml
index f26ee313..72ec24c3 100644
--- a/docs/apis/cae.xml
+++ b/docs/apis/cae.xml
@@ -1459,11 +1459,14 @@
   <sect2>
     <title><command>Meter Enable</command></title>
     <para>
-      Set UDP port to whcih to send meter update messages.
+      Set UDP port to which to send meter update messages for the specified
+      card(s).
     </para>
     <para>
       <userinput>ME
-      <replaceable>udp-port</replaceable>!</userinput>
+      <replaceable>udp-port</replaceable>
+      <replaceable>card0</replaceable>
+      <replaceable>..</replaceable>!</userinput>
     </para>
     <variablelist>
       <varlistentry>
@@ -1476,6 +1479,16 @@
 	  </para>
 	</listitem>
       </varlistentry>
+      <varlistentry>
+	<term>
+	  <replaceable>card0</replaceable>
+	</term>
+	<listitem>
+	  <para>
+	    Audio card number for which to send updates.
+	  </para>
+	</listitem>
+      </varlistentry>
     </variablelist>
   </sect2>
 </sect1>
diff --git a/docs/tables/stations.txt b/docs/tables/stations.txt
index 0873add9..d10ca825 100644
--- a/docs/tables/stations.txt
+++ b/docs/tables/stations.txt
@@ -25,6 +25,7 @@ FILTER_MODE          int(11)            0=Synchronous, 1=Asynchronous
 START_JACK           enum('Y','N')
 JACK_SERVER_NAME     char(64)
 JACK_COMMAND_LINE    char(255)
+JACK_PORTS           int(11) signed
 CUE_CARD             int(11) signed
 CUE_PORT             int(11) signed
 CUE_START_CART       int(10) unsigned
diff --git a/lib/dbversion.h b/lib/dbversion.h
index d9687287..86c42fb0 100644
--- a/lib/dbversion.h
+++ b/lib/dbversion.h
@@ -24,7 +24,7 @@
 /*
  * Current Database Version
  */
-#define RD_VERSION_DATABASE 286
+#define RD_VERSION_DATABASE 287
 
 
 #endif  // DBVERSION_H
diff --git a/lib/rdcae.cpp b/lib/rdcae.cpp
index 0e17be95..3bc9e46e 100644
--- a/lib/rdcae.cpp
+++ b/lib/rdcae.cpp
@@ -118,10 +118,30 @@ void RDCae::connectHost()
 	SendCommand(QString().sprintf("IS %d %d!",i,j));
       }
     }
-    SendCommand(QString().sprintf("ME %u!",cae_meter_socket->port()));
   }
 }
 
+
+void RDCae::enableMetering(std::vector<int> *cards)
+{
+  QString cmd=QString().sprintf("ME %u",cae_meter_socket->port());
+  for(unsigned i=0;i<cards->size();i++) {
+    if(cards->at(i)>=0) {
+      bool found=false;
+      for(unsigned j=0;j<i;j++) {
+	if(cards->at(i)==cards->at(j)) {
+	  found=true;
+	}
+      }
+      if(!found) {
+	cmd+=QString().sprintf(" %d",cards->at(i));
+      }
+    }
+  }
+  SendCommand(cmd+"!");
+}
+
+
 bool RDCae::loadPlay(int card,QString name,int *stream,int *handle)
 {
   int count=0;
diff --git a/lib/rdcae.h b/lib/rdcae.h
index 60ac5856..47a7990b 100644
--- a/lib/rdcae.h
+++ b/lib/rdcae.h
@@ -45,6 +45,7 @@ class RDCae : public QObject
   RDCae(RDStation *station,RDConfig *config,QObject *parent=0);
   ~RDCae();
   void connectHost();
+  void enableMetering(std::vector<int> *cards);
   bool loadPlay(int card,QString name,int *stream,int *handle);
   void unloadPlay(int handle);
   void positionPlay(int handle,int pos);
@@ -127,4 +128,4 @@ class RDCae : public QObject
 };
 
 
-#endif 
+#endif  // RDCAE_H
diff --git a/lib/rdstation.cpp b/lib/rdstation.cpp
index 42484263..be6850bc 100644
--- a/lib/rdstation.cpp
+++ b/lib/rdstation.cpp
@@ -336,6 +336,18 @@ void RDStation::setJackCommandLine(const QString &str) const
 }
 
 
+int RDStation::jackPorts() const
+{
+  return RDGetSqlValue("STATIONS","NAME",station_name,"JACK_PORTS").toInt();
+}
+
+
+void RDStation::setJackPorts(int ports) const
+{
+  SetRow("JACK_PORTS",ports);
+}
+
+
 int RDStation::cueCard() const
 {
   return RDGetSqlValue("STATIONS","NAME",station_name,"CUE_CARD").toInt();
@@ -867,14 +879,15 @@ bool RDStation::create(const QString &name,QString *err_msg,
       "START_JACK,"+          // 13
       "JACK_SERVER_NAME,"+    // 14
       "JACK_COMMAND_LINE,"+   // 15
-      "CUE_CARD,"+            // 16
-      "CUE_PORT,"+            // 17
-      "CUE_START_CART,"+      // 18
-      "CUE_STOP_CART,"+       // 19
-      "CARTSLOT_COLUMNS,"+    // 20
-      "CARTSLOT_ROWS,"+       // 21
-      "ENABLE_DRAGDROP,"+     // 22
-      "ENFORCE_PANEL_SETUP "+ // 23
+      "JACK_PORTS,"+          // 16
+      "CUE_CARD,"+            // 17
+      "CUE_PORT,"+            // 18
+      "CUE_START_CART,"+      // 19
+      "CUE_STOP_CART,"+       // 20
+      "CARTSLOT_COLUMNS,"+    // 21
+      "CARTSLOT_ROWS,"+       // 22
+      "ENABLE_DRAGDROP,"+     // 23
+      "ENFORCE_PANEL_SETUP "+ // 24
       "from STATIONS where "+
       "NAME=\""+RDEscapeString(exemplar)+"\"";
     q=new RDSqlQuery(sql);
@@ -901,14 +914,15 @@ bool RDStation::create(const QString &name,QString *err_msg,
 	"START_JACK=\""+RDEscapeString(q->value(13).toString())+"\","+
 	"JACK_SERVER_NAME=\""+RDEscapeString(q->value(14).toString())+"\","+
 	"JACK_COMMAND_LINE=\""+RDEscapeString(q->value(15).toString())+"\","+
-	QString().sprintf("CUE_CARD=%d,",q->value(16).toInt())+
-	QString().sprintf("CUE_PORT=%d,",q->value(17).toInt())+
-	QString().sprintf("CUE_START_CART=%u,",q->value(18).toInt())+
-	QString().sprintf("CUE_STOP_CART=%u,",q->value(19).toInt())+
-	QString().sprintf("CARTSLOT_COLUMNS=%d,",q->value(20).toInt())+
-	QString().sprintf("CARTSLOT_ROWS=%d,",q->value(21).toInt())+
-	"ENABLE_DRAGDROP=\""+RDEscapeString(q->value(22).toString())+"\","+
-	"ENFORCE_PANEL_SETUP=\""+RDEscapeString(q->value(23).toString())+"\"";
+	QString().sprintf("JACK_PORTS=%d,",q->value(16).toInt())+
+	QString().sprintf("CUE_CARD=%d,",q->value(17).toInt())+
+	QString().sprintf("CUE_PORT=%d,",q->value(18).toInt())+
+	QString().sprintf("CUE_START_CART=%u,",q->value(19).toInt())+
+	QString().sprintf("CUE_STOP_CART=%u,",q->value(20).toInt())+
+	QString().sprintf("CARTSLOT_COLUMNS=%d,",q->value(21).toInt())+
+	QString().sprintf("CARTSLOT_ROWS=%d,",q->value(22).toInt())+
+	"ENABLE_DRAGDROP=\""+RDEscapeString(q->value(23).toString())+"\","+
+	"ENFORCE_PANEL_SETUP=\""+RDEscapeString(q->value(24).toString())+"\"";
       q1=new RDSqlQuery(sql);
       if(!q1->isActive()) {
 	*err_msg=QObject::tr("host already exists");
diff --git a/lib/rdstation.h b/lib/rdstation.h
index eb7a092a..9ccb1692 100644
--- a/lib/rdstation.h
+++ b/lib/rdstation.h
@@ -76,6 +76,8 @@ class RDStation
   void setJackServerName(const QString &str) const;
   QString jackCommandLine() const;
   void setJackCommandLine(const QString &str) const;
+  int jackPorts() const;
+  void setJackPorts(int ports) const;
   int cueCard() const;
   void setCueCard(int card);
   int cuePort() const;
diff --git a/rdadmin/edit_jack.cpp b/rdadmin/edit_jack.cpp
index 1eb7413a..376096a4 100644
--- a/rdadmin/edit_jack.cpp
+++ b/rdadmin/edit_jack.cpp
@@ -95,6 +95,16 @@ EditJack::EditJack(RDStation *station,QWidget *parent)
   edit_jack_command_line_label->
     setAlignment(AlignRight|AlignVCenter|ShowPrefix);
 
+  //
+  // Active Audio Ports
+  //
+  edit_jack_audio_ports_spin=new QSpinBox(this);
+  edit_jack_audio_ports_spin->setRange(0,24);
+  edit_jack_audio_ports_label=
+    new QLabel(edit_jack_audio_ports_spin,tr("Active Audio Ports")+":",this);
+  edit_jack_audio_ports_label->setFont(font);
+  edit_jack_audio_ports_label->setAlignment(AlignRight|AlignVCenter|ShowPrefix);
+
   //
   // JACK Client List
   //
@@ -159,6 +169,7 @@ EditJack::EditJack(RDStation *station,QWidget *parent)
   edit_start_jack_box->setChecked(edit_station->startJack());
   edit_jack_server_name_edit->setText(edit_station->jackServerName());
   edit_jack_command_line_edit->setText(edit_station->jackCommandLine());
+  edit_jack_audio_ports_spin->setValue(edit_station->jackPorts());
   if(edit_jack_server_name_edit->text().isEmpty()) {
     edit_jack_server_name_edit->setText(EDITJACK_DEFAULT_SERVERNAME);
   }
@@ -170,7 +181,7 @@ EditJack::EditJack(RDStation *station,QWidget *parent)
 
 QSize EditJack::sizeHint() const
 {
-  return QSize(450,330);
+  return QSize(450,352);
 } 
 
 
@@ -279,6 +290,7 @@ void EditJack::okData()
     edit_station->setJackServerName(edit_jack_server_name_edit->text());
   }
   edit_station->setJackCommandLine(edit_jack_command_line_edit->text());
+  edit_station->setJackPorts(edit_jack_audio_ports_spin->value());
   item=(RDListViewItem *)edit_jack_client_view->firstChild();
   while(item!=NULL) {
     sql=QString("update JACK_CLIENTS set DESCRIPTION=\"")+
@@ -311,9 +323,12 @@ void EditJack::resizeEvent(QResizeEvent *e)
   edit_jack_command_line_label->setGeometry(10,54,130,20);
   edit_jack_command_line_edit->setGeometry(145,54,size().width()-155,20);
 
-  edit_jack_client_label->setGeometry(15,80,sizeHint().width()-28,20);
+  edit_jack_audio_ports_label->setGeometry(10,76,130,20);
+  edit_jack_audio_ports_spin->setGeometry(145,76,50,20);
+
+  edit_jack_client_label->setGeometry(15,103,sizeHint().width()-28,20);
   edit_jack_client_view->
-    setGeometry(10,102,size().width()-20,size().height()-170);
+    setGeometry(10,124,size().width()-20,size().height()-192);
 
   edit_add_button->setGeometry(15,size().height()-60,50,30);
   edit_edit_button->setGeometry(75,size().height()-60,50,30);
diff --git a/rdadmin/edit_jack.h b/rdadmin/edit_jack.h
index 8a3d7efb..cd215936 100644
--- a/rdadmin/edit_jack.h
+++ b/rdadmin/edit_jack.h
@@ -21,17 +21,18 @@
 #ifndef EDIT_JACK_H
 #define EDIT_JACK_H
 
-#include <qdialog.h>
-#include <qlistview.h>
-#include <qtextedit.h>
-#include <qpixmap.h>
 #include <qcheckbox.h>
-#include <qlineedit.h>
-#include <qpushbutton.h>
+#include <qdialog.h>
 #include <qlabel.h>
+#include <qlineedit.h>
+#include <qlistview.h>
+#include <qpixmap.h>
+#include <qpushbutton.h>
+#include <qspinbox.h>
+#include <qtextedit.h>
 
-#include <rdstation.h>
 #include <rdlistview.h>
+#include <rdstation.h>
 
 #define EDITJACK_DEFAULT_SERVERNAME QObject::tr("(default)")
 
@@ -63,6 +64,8 @@ class EditJack : public QDialog
   QLineEdit *edit_jack_server_name_edit;
   QLabel *edit_jack_command_line_label;
   QLineEdit *edit_jack_command_line_edit;
+  QLabel *edit_jack_audio_ports_label;
+  QSpinBox *edit_jack_audio_ports_spin;
   QLabel *edit_jack_client_label;
   RDListView *edit_jack_client_view;
   RDStation *edit_station;
diff --git a/rdadmin/rdadmin_cs.ts b/rdadmin/rdadmin_cs.ts
index 92061545..69365afe 100644
--- a/rdadmin/rdadmin_cs.ts
+++ b/rdadmin/rdadmin_cs.ts
@@ -1922,6 +1922,10 @@ Stále ještě chcete uložit?</translation>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_de.ts b/rdadmin/rdadmin_de.ts
index 88aac6de..a531abc3 100644
--- a/rdadmin/rdadmin_de.ts
+++ b/rdadmin/rdadmin_de.ts
@@ -1897,6 +1897,10 @@ Do you still want to save?</source>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_es.ts b/rdadmin/rdadmin_es.ts
index 435830f7..982fae1b 100644
--- a/rdadmin/rdadmin_es.ts
+++ b/rdadmin/rdadmin_es.ts
@@ -1928,6 +1928,10 @@ Do you still want to save?</source>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_fr.ts b/rdadmin/rdadmin_fr.ts
index ece3415c..e5a1ea9a 100644
--- a/rdadmin/rdadmin_fr.ts
+++ b/rdadmin/rdadmin_fr.ts
@@ -1650,6 +1650,10 @@ Do you still want to save?</source>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_nb.ts b/rdadmin/rdadmin_nb.ts
index 58b48bb9..bb8411a3 100644
--- a/rdadmin/rdadmin_nb.ts
+++ b/rdadmin/rdadmin_nb.ts
@@ -1884,6 +1884,10 @@ Vil du framleis lagra?</translation>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_nn.ts b/rdadmin/rdadmin_nn.ts
index 58b48bb9..bb8411a3 100644
--- a/rdadmin/rdadmin_nn.ts
+++ b/rdadmin/rdadmin_nn.ts
@@ -1884,6 +1884,10 @@ Vil du framleis lagra?</translation>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdadmin/rdadmin_pt_BR.ts b/rdadmin/rdadmin_pt_BR.ts
index 69f40491..31033cf8 100644
--- a/rdadmin/rdadmin_pt_BR.ts
+++ b/rdadmin/rdadmin_pt_BR.ts
@@ -1882,6 +1882,10 @@ Você ainda quer salvar?</translation>
         <source>Are you sure you want to delete JACK Client</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Active Audio Ports</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>EditJackClient</name>
diff --git a/rdairplay/rdairplay.cpp b/rdairplay/rdairplay.cpp
index 224a292f..5b9177ee 100644
--- a/rdairplay/rdairplay.cpp
+++ b/rdairplay/rdairplay.cpp
@@ -304,6 +304,8 @@ MainWidget::MainWidget(QWidget *parent)
   //
   // CAE Connection
   //
+  connect(rda->cae(),SIGNAL(isConnected(bool)),
+	  this,SLOT(caeConnectedData(bool)));
   rda->cae()->connectHost();
 
   //
@@ -315,7 +317,7 @@ MainWidget::MainWidget(QWidget *parent)
   //
   // RIPC Connection
   //
-  connect(rda->ripc(),SIGNAL(connected(bool)),this,SLOT(ripcConnected(bool)));
+  connect(rda->ripc(),SIGNAL(connected(bool)),this,SLOT(ripcConnectedData(bool)));
   connect(rda,SIGNAL(userChanged()),this,SLOT(userData()));
   connect(rda->ripc(),SIGNAL(rmlReceived(RDMacro *)),
 	  this,SLOT(rmlReceivedData(RDMacro *)));
@@ -914,7 +916,24 @@ QSizePolicy MainWidget::sizePolicy() const
 }
 
 
-void MainWidget::ripcConnected(bool state)
+void MainWidget::caeConnectedData(bool state)
+{
+  std::vector<int> cards;
+
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::MainLog1Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::MainLog2Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::AuxLog1Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::AuxLog2Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel1Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel2Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel3Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel4Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel5Channel));
+  rda->cae()->enableMetering(&cards);
+}
+
+
+void MainWidget::ripcConnectedData(bool state)
 {
   QString logname;
   QHostAddress addr;
diff --git a/rdairplay/rdairplay.h b/rdairplay/rdairplay.h
index d5b7610b..6715b2db 100644
--- a/rdairplay/rdairplay.h
+++ b/rdairplay/rdairplay.h
@@ -98,7 +98,8 @@ class MainWidget : public QWidget
 
  private slots:
   void logLine(RDConfig::LogPriority prio,const QString &msg);
-  void ripcConnected(bool state);
+  void caeConnectedData(bool state);
+  void ripcConnectedData(bool state);
   void rmlReceivedData(RDMacro *rml);
   void gpiStateChangedData(int matrix,int line,bool state);
   void logChannelStartedData(int id,int mport,int card,int port);
diff --git a/rdcartslots/rdcartslots.cpp b/rdcartslots/rdcartslots.cpp
index 31d10799..90092903 100644
--- a/rdcartslots/rdcartslots.cpp
+++ b/rdcartslots/rdcartslots.cpp
@@ -37,6 +37,7 @@
 #include <rdapplication.h>
 #include <rdcheck_daemons.h>
 #include <rddbheartbeat.h>
+#include <rdescape_string.h>
 
 #include "rdcartslots.h"
 
@@ -92,6 +93,8 @@ MainWidget::MainWidget(QWidget *parent)
   //
   // CAE Connection
   //
+  connect(rda->cae(),SIGNAL(isConnected(bool)),
+	  this,SLOT(caeConnectedData(bool)));
   rda->cae()->connectHost();
 
   //
@@ -166,6 +169,22 @@ QSize MainWidget::sizeHint() const
 }
 
 
+void MainWidget::caeConnectedData(bool state)
+{
+  std::vector<int> cards;
+
+  QString sql=QString("select CARD from CARTSLOTS where ")+
+    "STATION_NAME=\""+RDEscapeString(rda->config()->stationName())+"\"";
+  RDSqlQuery *q=new RDSqlQuery(sql);
+  while(q->next()) {
+   cards.push_back(q->value(0).toInt());
+  }
+  delete q;
+
+  rda->cae()->enableMetering(&cards);
+}
+
+
 void MainWidget::rmlReceivedData(RDMacro *rml)
 {
   RunLocalMacros(rml);
diff --git a/rdcartslots/rdcartslots.h b/rdcartslots/rdcartslots.h
index 12481165..6f7f9b09 100644
--- a/rdcartslots/rdcartslots.h
+++ b/rdcartslots/rdcartslots.h
@@ -56,6 +56,7 @@ class MainWidget : public QWidget
   QSizePolicy sizePolicy() const;
 
  private slots:
+  void caeConnectedData(bool state);
   void userData();
   void rmlReceivedData(RDMacro *rml);
 
@@ -66,12 +67,6 @@ class MainWidget : public QWidget
  private:
   void RunLocalMacros(RDMacro *rml);
   void SetCaption();
-  //  RDConfig *panel_config;
-  //  RDCae *panel_cae;
-  //  RDRipc *panel_ripc;
-  //  RDUser *panel_user;
-  //  RDStation *panel_station;
-  //  RDSystem *panel_system;
   RDEventPlayer *panel_player;
   QPixmap *lib_rivendell_map;
   QString panel_filter;
diff --git a/rdlibrary/rdlibrary.cpp b/rdlibrary/rdlibrary.cpp
index 7a59c6f1..73bee352 100644
--- a/rdlibrary/rdlibrary.cpp
+++ b/rdlibrary/rdlibrary.cpp
@@ -190,6 +190,8 @@ MainWidget::MainWidget(QWidget *parent)
   //
   // CAE Connection
   //
+  connect(rda->cae(),SIGNAL(isConnected(bool)),
+	  this,SLOT(caeConnectedData(bool)));
   rda->cae()->connectHost();
 
   //
@@ -483,6 +485,17 @@ QSizePolicy MainWidget::sizePolicy() const
 }
 
 
+void MainWidget::caeConnectedData(bool state)
+{
+  if(state) {
+    std::vector<int> cards;
+    cards.push_back(rda->libraryConf()->inputCard());
+    cards.push_back(rda->libraryConf()->outputCard());
+    rda->cae()->enableMetering(&cards);
+  }
+}
+
+
 void MainWidget::userData()
 {
   QString sql;
diff --git a/rdlibrary/rdlibrary.h b/rdlibrary/rdlibrary.h
index 51820397..a9ef7120 100644
--- a/rdlibrary/rdlibrary.h
+++ b/rdlibrary/rdlibrary.h
@@ -70,6 +70,7 @@ class MainWidget : public QWidget
   QSizePolicy sizePolicy() const;
 
  private slots:
+  void caeConnectedData(bool state);
   void userData();
   void filterChangedData(const QString &str);
   void searchClickedData();
diff --git a/rdpanel/rdpanel.cpp b/rdpanel/rdpanel.cpp
index 74c21c9d..bcd31b0d 100644
--- a/rdpanel/rdpanel.cpp
+++ b/rdpanel/rdpanel.cpp
@@ -145,6 +145,8 @@ MainWidget::MainWidget(QWidget *parent)
   //
   // CAE Connection
   //
+  connect(rda->cae(),SIGNAL(isConnected(bool)),
+	  this,SLOT(caeConnectedData(bool)));
   rda->cae()->connectHost();
 
   //
@@ -342,6 +344,19 @@ QSizePolicy MainWidget::sizePolicy() const
 }
 
 
+void MainWidget::caeConnectedData(bool state)
+{
+  std::vector<int> cards;
+
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel1Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel2Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel3Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel4Channel));
+  cards.push_back(rda->airplayConf()->card(RDAirPlayConf::SoundPanel5Channel));
+  rda->cae()->enableMetering(&cards);
+}
+
+
 void MainWidget::userData()
 {
   SetCaption();
diff --git a/rdpanel/rdpanel.h b/rdpanel/rdpanel.h
index 2d56124f..ed75569b 100644
--- a/rdpanel/rdpanel.h
+++ b/rdpanel/rdpanel.h
@@ -49,6 +49,7 @@ class MainWidget : public QWidget
   QSizePolicy sizePolicy() const;
 
  private slots:
+  void caeConnectedData(bool state);
   void userData();
   void masterTimerData();
   void meterData();
diff --git a/utils/rddbmgr/revertschema.cpp b/utils/rddbmgr/revertschema.cpp
index 92981b07..c7f459a2 100644
--- a/utils/rddbmgr/revertschema.cpp
+++ b/utils/rddbmgr/revertschema.cpp
@@ -29,6 +29,25 @@ bool MainObject::RevertSchema(int cur_schema,int set_schema,QString *err_msg) co
   RDSqlQuery *q; 
   QString tablename;
 
+  //
+  // Maintainer's Note:
+  //
+  // When adding a schema reversion here, be sure also to implement the
+  // corresponding update in updateschema.cpp!
+  //
+
+  //
+  // Revert 287
+  //
+  if((cur_schema==287)&&(set_schema<cur_schema)) {
+    sql=QString("alter table STATIONS drop column JACK_PORTS");
+    if(!RDSqlQuery::apply(sql,err_msg)) {
+      return false;
+    }
+
+    cur_schema--;
+  }
+
   //
   // Revert 286
   //
diff --git a/utils/rddbmgr/schemamap.cpp b/utils/rddbmgr/schemamap.cpp
index 0a96685c..79b2f808 100644
--- a/utils/rddbmgr/schemamap.cpp
+++ b/utils/rddbmgr/schemamap.cpp
@@ -56,7 +56,7 @@ void MainObject::InitializeSchemaMap() {
   global_version_map["2.17"]=268;
   global_version_map["2.18"]=272;
   global_version_map["2.19"]=275;
-  global_version_map["2.20"]=286;
+  global_version_map["2.20"]=287;
 }
 
 
diff --git a/utils/rddbmgr/updateschema.cpp b/utils/rddbmgr/updateschema.cpp
index 653641ac..924e3652 100644
--- a/utils/rddbmgr/updateschema.cpp
+++ b/utils/rddbmgr/updateschema.cpp
@@ -7157,6 +7157,17 @@ bool MainObject::UpdateSchema(int cur_schema,int set_schema,QString *err_msg) co
     cur_schema++;
   }
 
+  if((cur_schema<287)&&(set_schema>cur_schema)) { 
+    sql=QString("alter table STATIONS add column ")+
+      "JACK_PORTS int not null default 8 after JACK_COMMAND_LINE";
+    if(!RDSqlQuery::apply(sql,err_msg)) {
+      return false;
+    }
+
+    cur_schema++;
+  }
+
+
 
   //
   // Maintainer's Note: