diff --git a/fboss/platform/configs/morgan800cc/platform_manager.json b/fboss/platform/configs/morgan800cc/platform_manager.json
index 301257bdf774f..7b4583b367473 100644
--- a/fboss/platform/configs/morgan800cc/platform_manager.json
+++ b/fboss/platform/configs/morgan800cc/platform_manager.json
@@ -499,7 +499,92 @@
       }
     },
     "MORGAN800CC": {
-      "pluggedInSlotType": "FCB_SLOT"
+      "pluggedInSlotType": "FCB_SLOT",
+      "outgoingSlotConfigs": {
+        "FANTRAY_SLOT@0": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan1_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@1": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan2_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@2": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan3_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@3": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan4_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@4": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan5_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@5": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan6_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@6": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan7_presence",
+              "desiredValue": 1
+            }
+          }
+        },
+        "FANTRAY_SLOT@7": {
+          "slotType": "FANTRAY_SLOT",
+          "presenceDetection": {
+            "sysfsFileHandle": {
+              "devicePath": "/[MCB_FAN_PWM]",
+              "presenceFileName": "fan8_presence",
+              "desiredValue": 1
+            }
+          }
+        }
+      }
+    },
+    "FAN": {
+      "pluggedInSlotType": "FANTRAY_SLOT"
     },
     "PDB": {
       "pluggedInSlotType": "PDB_SLOT"