diff --git a/device-types/Alcatel-Lucent/OS6900-X20.yaml b/device-types/Alcatel-Lucent/OS6900-X20.yaml
index 91405bf7..7946ab38 100644
--- a/device-types/Alcatel-Lucent/OS6900-X20.yaml
+++ b/device-types/Alcatel-Lucent/OS6900-X20.yaml
@@ -90,3 +90,8 @@ interfaces:
   - name: Loopback0
     type: virtual
     mgmt_only: false
+module-bays:
+  - name: SLOT-2
+    label: Front
+  - name: SLOT-3
+    label: Rear
diff --git a/device-types/Alcatel-Lucent/OS6900-X40.yaml b/device-types/Alcatel-Lucent/OS6900-X40.yaml
index 1abce36a..93855761 100644
--- a/device-types/Alcatel-Lucent/OS6900-X40.yaml
+++ b/device-types/Alcatel-Lucent/OS6900-X40.yaml
@@ -150,3 +150,8 @@ interfaces:
   - name: Loopback0
     type: virtual
     mgmt_only: false
+module-bays:
+  - name: SLOT-2
+    label: Front
+  - name: SLOT-3
+    label: Rear
diff --git a/module-types/Alcatel-Lucent/OS-XNI-U12.yaml b/module-types/Alcatel-Lucent/OS-XNI-U12.yaml
new file mode 100644
index 00000000..0db2c804
--- /dev/null
+++ b/module-types/Alcatel-Lucent/OS-XNI-U12.yaml
@@ -0,0 +1,42 @@
+---
+manufacturer: Alcatel-Lucent
+model: OS-XNI-U12
+part_number: 903170-90
+comments: OmniSwitch 6900 (OS6900) plug-in module with 12X 10G SFP+ ports
+interfaces:
+  - name: 1/{module}/1
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/2
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/3
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/4
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/5
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/6
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/7
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/8
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/9
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/10
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/11
+    type: 10gbase-x-sfpp
+    mgmt_only: false
+  - name: 1/{module}/12
+    type: 10gbase-x-sfpp
+    mgmt_only: false