diff --git a/infra/env.yaml b/infra/env.yaml
index 5d7d6fcac7736c8d48d46e4ae400b2b6caaf5a51..a9be0453158af4dd75c5312afd9d71cdf3a780d8 100644
--- a/infra/env.yaml
+++ b/infra/env.yaml
@@ -40,9 +40,12 @@ devices:
   - class: Beamlet
   - class: BST
     ports:
-      lba: 5003
-      hba0: 5013
-      hba1: 5023
+      lba_in: 5003
+      hba0_in: 5013
+      hba1_in: 5023
+      lba_out: 5103
+      hba0_out: 5113
+      hba1_out: 5123
   - class: Calibration
   - class: CCD
   - class: Configuration
@@ -58,15 +61,21 @@ devices:
   - class: SDPFirmware
   - class: SST
     ports:
-      lba: 5001
-      hba0: 5011
-      hba1: 5021
+      lba_in: 5001
+      hba0_in: 5011
+      hba1_in: 5021
+      lba_out: 5101
+      hba0_out: 5111
+      hba1_out: 5121
   - class: StationManager
   - class: TemperatureManager
   - class: TileBeam
   - class: UNB2
   - class: XST
     ports:
-      lba: 5002
-      hba0: 5012
-      hba1: 5022
+      lba_in: 5002
+      hba0_in: 5012
+      hba1_in: 5022
+      lba_out: 5102
+      hba0_out: 5112
+      hba1_out: 5122