diff --git a/docs/drivers/FOCAS-Test-Fixture.md b/docs/drivers/FOCAS-Test-Fixture.md
index 252d0b07..b5e1a690 100644
--- a/docs/drivers/FOCAS-Test-Fixture.md
+++ b/docs/drivers/FOCAS-Test-Fixture.md
@@ -2,8 +2,8 @@
 
 Coverage map + gap inventory for the FANUC FOCAS2 CNC driver.
 
-**Status:** as of 2026-04-24, OtOpcUa speaks FOCAS2 directly over TCP
-via the pure-managed [`Focas.Wire`](https://github.com/Ladder99/focas-mock/tree/main/dotnet/Focas.Wire)
+OtOpcUa speaks FOCAS2 directly over TCP via the pure-managed
+[`Focas.Wire`](https://github.com/Ladder99/focas-mock/tree/main/dotnet/Focas.Wire)
 client. Integration tests run the managed driver end-to-end against the
 vendored `focas-mock` Python server (at
 [`tests/.../Docker/focas-mock/`](../../tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Docker/focas-mock/VENDORED.md))
@@ -51,8 +51,9 @@ message naming the CNC series + documented limit.
 `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/` drives the
 managed `FocasDriver` end-to-end. A single gate:
 
-**Docker compose up** — tests skip when the TCP probe to
-`localhost:8193` fails with a pointer to the compose command.
+**Docker compose up** — tests skip when the TCP probe fails, with a
+pointer to the compose command. The endpoint defaults to `localhost:8193`
+and is overridable via `OTOPCUA_FOCAS_SIM_ENDPOINT`.
 
 When the mock is up, `WireFocasClient` dials it over TCP exactly like a
 real CNC, and the mock's native FOCAS Ethernet responder replies with
@@ -137,8 +138,8 @@ Or use `scripts/integration/run-focas.ps1` which wraps compose up / test
   — per-series compose profiles
 - `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/FocasSimFixture.cs`
   — collection fixture + mock admin API client
-- `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/FixedTreePopulatesTests.cs`
-  — fixed-tree end-to-end tests
+- `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs`
+  — fixed-tree end-to-end tests (identity / axes / spindle / program / timers)
 - `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs`
   — pure-wire-backend end-to-end tests
 - `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FakeFocasClient.cs` —