diff --git a/models/physical/chassis.go b/models/physical/chassis.go
index 339a610..3f050aa 100644
--- a/models/physical/chassis.go
+++ b/models/physical/chassis.go
@@ -16,7 +16,10 @@
 
 package physical
 
-import "net"
+import (
+	"fmt"
+	"net"
+)
 
 /*
 Chassis is a model that takes up to 16 discreet OLT chassis as if it is a 16 slot OLT chassis
@@ -27,3 +30,16 @@
 	Dataswitch   DataSwitch
 	Linecards    []OLT
 }
+
+/*
+AddOLTChassis - adds a reference to a new olt chassis
+*/
+func (chassis *Chassis) AddOLTChassis(olt OLT) {
+	chassis.Linecards = append(chassis.Linecards, olt)
+	//TODO - api call to add olt i.e. preprovision_olt
+	fmt.Printf("chassis.AddOLTChassis(%s)\n", olt.GetHostname())
+}
+func (chassis *Chassis) provisionONT(ont Ont) {
+	//TODO - api call to provison s/c vlans and ont serial number etc
+	fmt.Printf("chassis.provisionONT(%s,SVlan:%d,CVlan:%d)\n", ont.SerialNumber, ont.Svlan, ont.Cvlan)
+}
diff --git a/models/physical/edgecore.go b/models/physical/edgecore.go
index 196d44e..cded2dc 100644
--- a/models/physical/edgecore.go
+++ b/models/physical/edgecore.go
@@ -29,6 +29,9 @@
 func CreateEdgecore(olt *SimpleOLT) *Edgecore {
 	var newPorts [16]PONPort
 	edge := Edgecore{SimpleOLT: *olt}
+	for i := 0; i < 16; i++ {
+		newPorts[i].Parent = &edge
+	}
 	edge.Ports = newPorts[:]
 	return &edge
 }
diff --git a/models/physical/olt.go b/models/physical/olt.go
index 3c2094d..beffec8 100644
--- a/models/physical/olt.go
+++ b/models/physical/olt.go
@@ -41,6 +41,7 @@
 	Address        net.TCPAddr
 	Number         int
 	Ports          []PONPort
+	Active         bool
 	Parent         *Chassis `json:"-"`
 	DataSwitchPort int
 }
diff --git a/models/physical/ont.go b/models/physical/ont.go
index 4bd47ac..4a9ca89 100644
--- a/models/physical/ont.go
+++ b/models/physical/ont.go
@@ -20,8 +20,9 @@
 Ont represents a single ont/onu connect to a splitter on a Port
 */
 type Ont struct {
-	Number int
-	Svlan  int
-	Cvlan  int
-	Parent *PONPort `json:"-"`
+	Number       int
+	Svlan        int
+	Cvlan        int
+	SerialNumber string
+	Parent       *PONPort `json:"-"`
 }
diff --git a/models/physical/ponport.go b/models/physical/ponport.go
index 99c282a..e17a07e 100644
--- a/models/physical/ponport.go
+++ b/models/physical/ponport.go
@@ -17,7 +17,7 @@
 package physical
 
 /*
-Port represents a single PON port on the OLT chassis
+PONPort represents a single PON port on the OLT chassis
 */
 type PONPort struct {
 	Number   int
@@ -25,3 +25,10 @@
 	Onts     [64]Ont
 	Parent   *Edgecore `json:"-"`
 }
+
+func (port *PONPort) ActivateOnt(number int, sVlan int, cVlan int, serialNumber string) {
+	ont := Ont{Number: number, Svlan: sVlan, Cvlan: cVlan, SerialNumber: serialNumber, Parent: port}
+	port.Onts[number-1] = ont
+	port.Parent.Parent.provisionONT(ont)
+
+}