diff --git a/bal_release/scripts/bal_topology.ini b/bal_release/scripts/bal_topology.ini
new file mode 100644
index 0000000..4cf96ec
--- /dev/null
+++ b/bal_release/scripts/bal_topology.ini
@@ -0,0 +1,18 @@
+# Logical PON ID, PON Mode (gpon|xgpon|epon_10g|xgs|ngpon2), Physical Device ID, Physical PON ID
+# Comments below contain gpon configuration example
+#0, gpon, 0, 0
+#1, gpon, 0, 1
+#2, gpon, 0, 2
+#3, gpon, 0, 3
+#4, gpon, 0, 4
+#5, gpon, 0, 5
+#6, gpon, 0, 6
+#7, gpon, 0, 7
+#8, gpon, 0, 8
+#9, gpon, 0, 9
+#10, gpon, 0, 10
+#11, gpon, 0, 11
+#12, gpon, 0, 12
+#13, gpon, 0, 13
+#14, gpon, 0, 14
+#15, gpon, 0, 15