diff --git a/src/apis/domains/diag-info/ndm-camera-diag-info.ts b/src/apis/domains/device/diag-info/ndm-camera-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-camera-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-camera-diag-info.ts
diff --git a/src/apis/domains/diag-info/ndm-decoder-diag-info.ts b/src/apis/domains/device/diag-info/ndm-decoder-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-decoder-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-decoder-diag-info.ts
diff --git a/src/apis/domains/diag-info/ndm-nvr-diag-info.ts b/src/apis/domains/device/diag-info/ndm-nvr-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-nvr-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-nvr-diag-info.ts
diff --git a/src/apis/domains/diag-info/ndm-security-box-diag-info.ts b/src/apis/domains/device/diag-info/ndm-security-box-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-security-box-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-security-box-diag-info.ts
diff --git a/src/apis/domains/diag-info/ndm-server-diag-info.ts b/src/apis/domains/device/diag-info/ndm-server-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-server-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-server-diag-info.ts
diff --git a/src/apis/domains/diag-info/ndm-switch-diag-info.ts b/src/apis/domains/device/diag-info/ndm-switch-diag-info.ts
similarity index 100%
rename from src/apis/domains/diag-info/ndm-switch-diag-info.ts
rename to src/apis/domains/device/diag-info/ndm-switch-diag-info.ts
diff --git a/src/apis/domains/device/index.ts b/src/apis/domains/device/index.ts
new file mode 100644
index 0000000..b6c3262
--- /dev/null
+++ b/src/apis/domains/device/index.ts
@@ -0,0 +1,8 @@
+export * from './diag-info/ndm-camera-diag-info';
+export * from './diag-info/ndm-decoder-diag-info';
+export * from './diag-info/ndm-nvr-diag-info';
+export * from './diag-info/ndm-security-box-diag-info';
+export * from './diag-info/ndm-server-diag-info';
+export * from './diag-info/ndm-switch-diag-info';
+
+export * from './device-id-type';
diff --git a/src/apis/domains/diag-info/index.ts b/src/apis/domains/diag-info/index.ts
deleted file mode 100644
index 71d7c76..0000000
--- a/src/apis/domains/diag-info/index.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-export * from './ndm-camera-diag-info';
-export * from './ndm-decoder-diag-info';
-export * from './ndm-nvr-diag-info';
-export * from './ndm-security-box-diag-info';
-export * from './ndm-server-diag-info';
-export * from './ndm-switch-diag-info';
diff --git a/src/apis/domains/index.ts b/src/apis/domains/index.ts
index 7d0ad99..2a57111 100644
--- a/src/apis/domains/index.ts
+++ b/src/apis/domains/index.ts
@@ -1,2 +1,2 @@
-export * from './diag-info';
+export * from './device';
 export * from './station';