diff --git a/modules/rhizo_base/files/bin/check_amp_status.sh b/modules/rhizo_base/files/bin/check_amp_status.sh
index 87ddc54..e791b9b 100755
--- a/modules/rhizo_base/files/bin/check_amp_status.sh
+++ b/modules/rhizo_base/files/bin/check_amp_status.sh
@@ -2,7 +2,8 @@
 # Check for AMP status on each BTS, from BTS1 up to BTS3
 RHIZO_SCRIPT="/home/rhizomatica/bin"
 . $RHIZO_SCRIPT/vars.sh
-for bts in $BTS0 $BTS1 $BTS2; do
+
+for bts in "${BTS_MASTER[@]}" ; do
     echo "BTS $bts:";
     ssh root@$bts sbts2050-util sbts2050-pwr-status | grep Amp;
 done
diff --git a/modules/rhizo_base/files/bin/check_broken.sh b/modules/rhizo_base/files/bin/check_broken.sh
index 88ca89a..cd065da 100755
--- a/modules/rhizo_base/files/bin/check_broken.sh
+++ b/modules/rhizo_base/files/bin/check_broken.sh
@@ -8,7 +8,7 @@ NACK=`echo "show lchan" | nc -q1 localhost 4242 | grep "BROKEN UNUSABLE Error re
 if [ $NACK -gt 0 ]; then
 	waitfor0calls
 	_bts=0
-	for bts in $BTS0 $BTS1 $BTS2; do
+	for bts in "${BTS[@]}" ; do
 	  echo "Dropping BTS connection $_bts due to $NACK broken (NACK) Channels"
 	  echo -e "enable\n drop bts connection $_bts oml" | nc -q1 localhost 4242
 	done
diff --git a/modules/rhizo_base/files/bin/turn_off_amplifier.sh b/modules/rhizo_base/files/bin/turn_off_amplifier.sh
index 6810a5d..116ca3d 100755
--- a/modules/rhizo_base/files/bin/turn_off_amplifier.sh
+++ b/modules/rhizo_base/files/bin/turn_off_amplifier.sh
@@ -4,7 +4,7 @@ RHIZO_SCRIPT="/home/rhizomatica/bin"
 . $RHIZO_SCRIPT/vars.sh
 LOGFILE="/var/log/monitor_amp.log"
 
-for bts in $BTS0 $BTS1 $BTS2; do
+for bts in "${BTS_MASTER[@]}" ; do
     logc "Turning off AMP on BTS $bts:";
     ssh root@$bts "sbts2050-util sbts2050-pwr-enable 1 1 0";
 done
diff --git a/modules/rhizo_base/files/bin/turn_on_amplifier.sh b/modules/rhizo_base/files/bin/turn_on_amplifier.sh
index 16ce888..e8f7c88 100755
--- a/modules/rhizo_base/files/bin/turn_on_amplifier.sh
+++ b/modules/rhizo_base/files/bin/turn_on_amplifier.sh
@@ -4,7 +4,7 @@ RHIZO_SCRIPT="/home/rhizomatica/bin"
 . $RHIZO_SCRIPT/vars.sh
 LOGFILE="/var/log/monitor_amp.log"
 
-for bts in $BTS0 $BTS1 $BTS2; do
+for bts in "${BTS_MASTER[@]}" ; do
     logc "Turning on AMP on BTS $bts:";
     ssh root@$bts "sbts2050-util sbts2050-pwr-enable 1 1 1";
 done
diff --git a/modules/rhizo_base/templates/vars.sh.erb b/modules/rhizo_base/templates/vars.sh.erb
index 8122505..259dfcf 100644
--- a/modules/rhizo_base/templates/vars.sh.erb
+++ b/modules/rhizo_base/templates/vars.sh.erb
@@ -6,16 +6,22 @@ function logc() {
     echo "[`date '+%d-%m-%Y %H:%M:%S'`] $txt" >> $LOGFILE
 }
 
-#BTSs IP addresses
+#BTSs IP addresses (for amps etc)
+declare -a BTS
+declare -a BTS_MASTER
 
 <% @bts.each_with_index do |bts, index| -%>
-BTS<%= index %>=<%= bts["ip"] %>
+BTS[<%= index %>]=<%= bts["ip"] %>
+<% if bts ["model"] == '2050M' -%>
+BTS_MASTER[<%= index %>]=<%= bts["ip"] %>
+<% end -%>
 <% end -%>
 
 LATENCY_HOST=<%= @latency_check_address %>
 LATENCY_TINC=<%= @latency_check_vpn %>
 STAT_DISK=<%= @stats_disk %>
 STAT_IF=<%= @stats_if %>
+_PUB_IF=<%= @stats_if %>
 
 RECIPIENTS="<%= @mail_admins -%>"