diff --git a/apps/device-manager/server/device-core-client.mjs b/apps/device-manager/server/device-core-client.mjs
index 2216297..c097f16 100644
--- a/apps/device-manager/server/device-core-client.mjs
+++ b/apps/device-manager/server/device-core-client.mjs
@@ -22,6 +22,7 @@ const commandRoutes = new Map([
     "device-configurations:set-desired",
     "/internal/v1/management/device-configurations:set-desired",
   ],
+  ["commands:service-ping", "/internal/v1/commands:service-ping"],
 ]);
 
 export function createDeviceCoreClient({ baseUrl, token, fetchImpl = fetch } = {}) {
@@ -97,6 +98,7 @@ export function createLocalPreviewDeviceCore({ fixture = null } = {}) {
   const configurationRevisions = new Map();
   const configurationStates = new Map();
   const auditEvents = [];
+  const commands = new Map();
 
   function now() {
     return new Date().toISOString();
@@ -152,12 +154,14 @@ export function createLocalPreviewDeviceCore({ fixture = null } = {}) {
       bindings: projectValues(bindings, projectRef),
       configurationRevisions: projectValues(configurationRevisions, projectRef),
       configurationStates: projectValues(configurationStates, projectRef),
-      commands: [],
+      commands: projectValues(commands, projectRef),
       auditEvents: auditEvents.filter((event) => event.projectRef === projectRef),
       grants: projectValues(grants, projectRef),
       policies: {
-        commandTransport: "disabled",
-        commandPlanningApi: "disabled",
+        commandTransport: fixture === "arusnavi-b2"
+          ? "typed-service-ping-v1"
+          : "disabled",
+        commandPlanningApi: fixture === "arusnavi-b2" ? "enabled" : "disabled",
         identifierProjection: "masked-only",
         auditPayloadProjection: "metadata-only",
       },
@@ -187,6 +191,42 @@ export function createLocalPreviewDeviceCore({ fixture = null } = {}) {
       return workspace(projectRef);
     },
     async execute(command, actor, input) {
+      if (command === "commands:service-ping") {
+        if (fixture !== "arusnavi-b2") {
+          throw serviceError("device_command_transport_disabled", 409);
+        }
+        const device = devices.get(input.deviceRef);
+        if (!device || device.projectRef !== input.projectRef) {
+          throw serviceError("device_command_route_unavailable", 409);
+        }
+        if (typeof input.accessCode !== "string" || !/^\d{6}$/.test(input.accessCode)) {
+          throw serviceError("device_service_ping_access_code_invalid", 400);
+        }
+        const commandRef = `command:${randomUUID()}`;
+        const at = now();
+        const view = {
+          commandRef,
+          projectRef: input.projectRef,
+          deviceRef: input.deviceRef,
+          deviceName: device.displayName,
+          commandKey: `preview-service-ping-${randomUUID()}`,
+          commandCatalogRef: "arusnavi.b2.internal.v1:service-ping",
+          commandType: "service.ping",
+          riskClass: "low",
+          lifecycleState: "queued",
+          plannedAt: at,
+          expiresAt: new Date(Date.now() + Number(input.expiresInSeconds) * 1000).toISOString(),
+          confirmedAt: null,
+          dispatchedAt: null,
+          acknowledgedAt: null,
+          terminalAt: null,
+          terminalReasonCode: null,
+          createdAt: at,
+          updatedAt: at,
+        };
+        commands.set(commandRef, view);
+        return { replayed: false, result: view };
+      }
       if (command === "owner-scopes:ensure") {
         const key = `${input.scopeKind}:${input.ownerRef}`;
         const created = !ownerScopes.has(key);
@@ -580,6 +620,7 @@ export function createLocalPreviewDeviceCore({ fixture = null } = {}) {
         grants,
         configurationRevisions,
         configurationStates,
+        commands,
         auditEvents,
       };
     },
diff --git a/apps/device-manager/server/device-core-client.test.mjs b/apps/device-manager/server/device-core-client.test.mjs
index cd59f22..eed6595 100644
--- a/apps/device-manager/server/device-core-client.test.mjs
+++ b/apps/device-manager/server/device-core-client.test.mjs
@@ -229,7 +229,7 @@ test("explicit B2 preview fixture is isolated from the empty canonical preview",
   assert.equal(workspace.devices[0].modelProfileRef, "arusnavi.b2.internal.v1");
   assert.equal(workspace.devices[0].identifier.masked, "***********0001");
   assert.equal(workspace.sessions[0].lifecycleState, "online");
-  assert.equal(workspace.policies.commandTransport, "disabled");
+  assert.equal(workspace.policies.commandTransport, "typed-service-ping-v1");
   assert.equal(JSON.stringify(workspace).includes("123456789012345"), false);
 
   assert.throws(
diff --git a/apps/device-manager/server/device-manager-server.mjs b/apps/device-manager/server/device-manager-server.mjs
index 556fd0a..3fd5858 100644
--- a/apps/device-manager/server/device-manager-server.mjs
+++ b/apps/device-manager/server/device-manager-server.mjs
@@ -33,6 +33,7 @@ const mutationRoutes = new Map([
     "/api/device-manager/device-configurations:set-desired",
     "device-configurations:set-desired",
   ],
+  ["/api/device-manager/commands:service-ping", "commands:service-ping"],
 ]);
 
 export function createDeviceManagerServer({
diff --git a/apps/device-manager/src/DeviceControlViews.tsx b/apps/device-manager/src/DeviceControlViews.tsx
index 7c4a137..a7eb2be 100644
--- a/apps/device-manager/src/DeviceControlViews.tsx
+++ b/apps/device-manager/src/DeviceControlViews.tsx
@@ -21,6 +21,7 @@ import {
   registerAdapterVersion,
   registerModelProfile,
   revokeDeviceBinding,
+  sendServicePing,
   setDesiredConfiguration,
   upsertProjectGrant,
 } from "./api";
@@ -157,7 +158,14 @@ export function DeviceControlView({
           }).then(onRefresh).catch(onError)}
         />
       ) : null}
-      {view === "commands" ? <CommandsView workspace={workspace} /> : null}
+      {view === "commands" ? (
+        <CommandsView
+          workspace={workspace}
+          canDispatch={capabilities.has("command.plan") && capabilities.has("command.dispatch")}
+          onRefresh={onRefresh}
+          onError={onError}
+        />
+      ) : null}
       {view === "audit" ? <AuditView workspace={workspace} /> : null}
       {view === "access" ? (
         <AccessView
@@ -412,17 +420,92 @@ function BindingsView({ workspace, canManage, onCreate, onRevoke }: {
   );
 }
 
-function CommandsView({ workspace }: { workspace: ProjectWorkspace }) {
+function CommandsView({ workspace, canDispatch, onRefresh, onError }: {
+  workspace: ProjectWorkspace;
+  canDispatch: boolean;
+  onRefresh: () => Promise<void>;
+  onError: (reason: unknown) => void;
+}) {
+  const supportedDevices = workspace.devices.filter(
+    (device) => device.modelProfileRef === "arusnavi.b2.internal.v1"
+      && !["suspended", "retired"].includes(device.lifecycleState),
+  );
+  const [deviceRef, setDeviceRef] = useState(supportedDevices[0]?.deviceRef ?? "");
+  const [accessCode, setAccessCode] = useState("");
+  const [submitting, setSubmitting] = useState(false);
+  const enabled = workspace.policies.commandTransport === "typed-service-ping-v1";
+  useEffect(() => {
+    if (!supportedDevices.some((device) => device.deviceRef === deviceRef)) {
+      setDeviceRef(supportedDevices[0]?.deviceRef ?? "");
+    }
+  }, [deviceRef, supportedDevices]);
+  const submit = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!enabled || !canDispatch || !deviceRef || !/^\d{6}$/.test(accessCode)) return;
+    setSubmitting(true);
+    try {
+      await sendServicePing({
+        projectRef: workspace.project.projectRef,
+        deviceRef,
+        accessCode,
+        expiresInSeconds: 300,
+      });
+      setAccessCode("");
+      await onRefresh();
+    } catch (reason) {
+      onError(reason);
+    } finally {
+      setSubmitting(false);
+    }
+  };
   return (
     <ControlStack>
       <div className="device-control-command-policy">
-        <Icon name="lock" />
+        <Icon name={enabled ? "check" : "lock"} />
         <div>
-          <strong>Command transport выключен</strong>
-          <p>Ни UI, ни BFF не имеют raw command builder. acknowledged означает подтверждение протокола, verified — отдельное доказательство состояния.</p>
+          <strong>{enabled ? "Типизированный командный канал активен" : "Command transport выключен"}</strong>
+          <p>{enabled
+            ? "Доступна только безопасная проверка сервиса. Произвольные команды, прошивка, очистка памяти и перезагрузка отсутствуют. Код устройства существует только в памяти Core до отправки или истечения TTL."
+            : "Ни UI, ни BFF не имеют raw command builder. acknowledged означает подтверждение протокола, verified — отдельное доказательство состояния."}</p>
         </div>
-        <StatusBadge tone="warning">{workspace.policies.commandTransport}</StatusBadge>
+        <StatusBadge tone={enabled ? "success" : "warning"}>{workspace.policies.commandTransport}</StatusBadge>
       </div>
+      {enabled ? (
+        <form className="device-control-command-form" onSubmit={submit}>
+          <Select
+            label="B2 трекер"
+            value={deviceRef}
+            onChange={setDeviceRef}
+            options={supportedDevices.map((device) => ({
+              value: device.deviceRef,
+              label: device.displayName,
+              description: device.session?.state || device.lifecycleState,
+            }))}
+            disabled={!canDispatch || supportedDevices.length === 0 || submitting}
+          />
+          <TextField
+            label="Код устройства"
+            type="password"
+            inputMode="numeric"
+            autoComplete="off"
+            value={accessCode}
+            onChange={(event) => setAccessCode(event.target.value.replace(/\D/g, "").slice(0, 6))}
+            pattern="[0-9]{6}"
+            minLength={6}
+            maxLength={6}
+            required
+            disabled={!canDispatch || submitting}
+            description="Ровно 6 цифр. Код не сохраняется и не попадает в журнал. Команда истечёт через 5 минут."
+          />
+          <Button
+            type="submit"
+            variant="primary"
+            disabled={!canDispatch || !deviceRef || accessCode.length !== 6 || submitting}
+          >
+            {submitting ? "Ставим в очередь…" : "Проверить сервис"}
+          </Button>
+        </form>
+      ) : null}
       <ResourceList empty="Command intents отсутствуют. Это не означает, что транспорт доступен.">
         {workspace.commands.map((command) => (
           <ResourceRow
diff --git a/apps/device-manager/src/DeviceInventoryView.tsx b/apps/device-manager/src/DeviceInventoryView.tsx
index 1e92ae7..75fa4a6 100644
--- a/apps/device-manager/src/DeviceInventoryView.tsx
+++ b/apps/device-manager/src/DeviceInventoryView.tsx
@@ -272,7 +272,7 @@ function AccessNotice({
   if (access === "protected") {
     return <div className="device-detail-notice" data-access="protected"><Icon name="shield" size={15} /><span>Операция требует отдельного подтверждения. Обновление прошивки пилотного B2 запрещено.</span></div>;
   }
-  return <div className="device-detail-notice" data-access="managed"><Icon name="settings" size={15} /><span>{commandTransport === "enabled" ? "Настройка управляется через command ledger." : "Настройка поддерживается моделью, но запись включится только после запуска двустороннего командного канала."}</span></div>;
+  return <div className="device-detail-notice" data-access="managed"><Icon name="settings" size={15} /><span>{commandTransport === "typed-service-ping-v1" ? "Настройка управляется через типизированный command ledger." : "Настройка поддерживается моделью, но запись включится только после запуска двустороннего командного канала."}</span></div>;
 }
 
 function latestSession(workspace: ProjectWorkspace, device: DeviceView): SessionView | null {
diff --git a/apps/device-manager/src/api.ts b/apps/device-manager/src/api.ts
index 99b3535..b432936 100644
--- a/apps/device-manager/src/api.ts
+++ b/apps/device-manager/src/api.ts
@@ -216,6 +216,15 @@ export async function setDesiredConfiguration(input: {
   return mutate("/api/device-manager/device-configurations:set-desired", input);
 }
 
+export async function sendServicePing(input: {
+  projectRef: string;
+  deviceRef: string;
+  accessCode: string;
+  expiresInSeconds: number;
+}) {
+  return mutate("/api/device-manager/commands:service-ping", input);
+}
+
 async function mutate<T = unknown>(path: string, input: unknown) {
   return requestJson<{ ok: true; replayed: boolean; result: T }>(path, {
     method: "POST",
diff --git a/apps/device-manager/src/styles.css b/apps/device-manager/src/styles.css
index bc632e5..84d3e96 100644
--- a/apps/device-manager/src/styles.css
+++ b/apps/device-manager/src/styles.css
@@ -92,6 +92,17 @@
   margin: 0;
 }
 
+.device-control-command-form {
+  display: grid;
+  grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr) auto;
+  align-items: end;
+  gap: 14px;
+  padding: 18px;
+  border: 1px solid rgba(181, 255, 44, 0.18);
+  border-radius: 22px;
+  background: rgba(181, 255, 44, 0.045);
+}
+
 .device-control-command-policy p {
   margin-top: 5px;
   color: rgba(255, 255, 255, 0.58);
@@ -143,6 +154,10 @@
     grid-template-columns: auto 1fr;
   }
 
+  .device-control-command-form {
+    grid-template-columns: 1fr;
+  }
+
   .device-control-command-policy > .nodedc-status {
     grid-column: 2;
     justify-self: start;
diff --git a/apps/device-manager/src/types.ts b/apps/device-manager/src/types.ts
index 1867fa4..1b2f548 100644
--- a/apps/device-manager/src/types.ts
+++ b/apps/device-manager/src/types.ts
@@ -279,7 +279,7 @@ export interface ProjectWorkspace {
   auditEvents: AuditEventView[];
   grants: ProjectGrantView[];
   policies: {
-    commandTransport: "disabled" | "enabled";
+    commandTransport: "disabled" | "typed-service-ping-v1";
     commandPlanningApi: "disabled" | "enabled";
     identifierProjection: string;
     auditPayloadProjection: string;