diff --git a/src/main/java/li/cil/oc/api/API.java b/src/main/java/li/cil/oc/api/API.java
index 4feef4c06..44dfd0b4a 100644
--- a/src/main/java/li/cil/oc/api/API.java
+++ b/src/main/java/li/cil/oc/api/API.java
@@ -11,7 +11,7 @@ import li.cil.oc.api.detail.*;
  */
 public class API {
     public static final String ID_OWNER = "OpenComputers|Core";
-    public static final String VERSION = "4.2.2";
+    public static final String VERSION = "4.2.3";
 
     public static DriverAPI driver = null;
     public static FileSystemAPI fileSystem = null;
diff --git a/src/main/java/li/cil/oc/api/network/ManagedPeripheral.java b/src/main/java/li/cil/oc/api/network/ManagedPeripheral.java
index b12c8ff9e..3e69def05 100644
--- a/src/main/java/li/cil/oc/api/network/ManagedPeripheral.java
+++ b/src/main/java/li/cil/oc/api/network/ManagedPeripheral.java
@@ -6,7 +6,7 @@ import li.cil.oc.api.machine.Context;
 /**
  * This interface can be used with an {@link li.cil.oc.api.network.Environment}
  * and is intended to be used for environments wrapping a ComputerCraft
- * peripheral. Tt could be used for other purposes as well, though. It allows
+ * peripheral. It could be used for other purposes as well, though. It allows
  * providing method names in addition to those defined via the
  * {@link li.cil.oc.api.machine.Callback} annotation, and invoking said methods.
  */
diff --git a/src/main/java/li/cil/oc/api/network/SidedComponent.java b/src/main/java/li/cil/oc/api/network/SidedComponent.java
new file mode 100644
index 000000000..68dd76866
--- /dev/null
+++ b/src/main/java/li/cil/oc/api/network/SidedComponent.java
@@ -0,0 +1,26 @@
+package li.cil.oc.api.network;
+
+import net.minecraftforge.common.util.ForgeDirection;
+
+/**
+ * This is an extended version of {@link li.cil.oc.api.network.SimpleComponent}
+ * which allows controlling connectivity on a side-by-side basis.
+ * <p/>
+ * Like the <tt>SimpleComponent</tt> interface, this is intended to be used
+ * with tile entities that should act as OC components. Please see the
+ * <tt>SimpleComponent</tt> interface for more information.
+ */
+public interface SidedComponent {
+    /**
+     * Whether this component can connect to a node on the specified side.
+     * <p/>
+     * The provided side is relative to the component, i.e. when the tile
+     * entity sits at (0, 0, 0) and is asked for its southern node (positive
+     * Z axis) it has to return the connectivity for the face between it and
+     * the block at (0, 0, 1).
+     *
+     * @param side the side to check for.
+     * @return whether the component may be connected to from the specified side.
+     */
+    boolean canConnectNode(ForgeDirection side);
+}
diff --git a/src/main/scala/li/cil/oc/common/block/Cable.scala b/src/main/scala/li/cil/oc/common/block/Cable.scala
index 27a884b97..f7a4038b8 100644
--- a/src/main/scala/li/cil/oc/common/block/Cable.scala
+++ b/src/main/scala/li/cil/oc/common/block/Cable.scala
@@ -9,6 +9,7 @@ import cpw.mods.fml.relauncher.Side
 import cpw.mods.fml.relauncher.SideOnly
 import li.cil.oc.Settings
 import li.cil.oc.api.network.Environment
+import li.cil.oc.api.network.SidedComponent
 import li.cil.oc.api.network.SidedEnvironment
 import li.cil.oc.client.Textures
 import li.cil.oc.common.tileentity
@@ -124,6 +125,8 @@ object Cable {
       case host: SidedEnvironment =>
         if (host.getWorldObj.isRemote) host.canConnect(side)
         else host.sidedNode(side) != null
+      case host: Environment with SidedComponent =>
+        host.canConnectNode(side)
       case host: Environment => true
       case host if Mods.ForgeMultipart.isAvailable => hasMultiPartNode(tileEntity)
       case _ => false
diff --git a/src/main/scala/li/cil/oc/server/network/Network.scala b/src/main/scala/li/cil/oc/server/network/Network.scala
index 9727aa3f1..fccfdd871 100644
--- a/src/main/scala/li/cil/oc/server/network/Network.scala
+++ b/src/main/scala/li/cil/oc/server/network/Network.scala
@@ -9,11 +9,7 @@ import li.cil.oc.OpenComputers
 import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.api.network
-import li.cil.oc.api.network.Environment
-import li.cil.oc.api.network.SidedEnvironment
-import li.cil.oc.api.network.Visibility
-import li.cil.oc.api.network.WirelessEndpoint
-import li.cil.oc.api.network.{Node => ImmutableNode}
+import li.cil.oc.api.network.{Node => ImmutableNode, _}
 import li.cil.oc.common.block.Cable
 import li.cil.oc.common.tileentity
 import li.cil.oc.integration.Mods
@@ -439,7 +435,10 @@ object Network extends api.detail.NetworkAPI {
   private def getNetworkNode(tileEntity: TileEntity, side: ForgeDirection) =
     tileEntity match {
       case host: SidedEnvironment => Option(host.sidedNode(side))
-      case host: Environment => Some(host.node)
+      case host: Environment with SidedComponent =>
+        if (host.canConnectNode(side)) Option(host.node)
+        else None
+      case host: Environment => Option(host.node)
       case host if Mods.ForgeMultipart.isAvailable => getMultiPartNode(host)
       case _ => None
     }