diff --git a/test/test-chnl-timeout.cpp b/test/test-chnl-timeout.cpp
new file mode 100644
index 0000000..711d193
--- /dev/null
+++ b/test/test-chnl-timeout.cpp
@@ -0,0 +1,281 @@
+#include <stdio.h>
+
+#include <analyzer/plugins/plugin.hpp>
+#include <analyzer/ras-data/ras-data-parser.hpp>
+#include <hei_util.hpp>
+#include <util/pdbg.hpp>
+#include <util/trace.hpp>
+
+#include "gtest/gtest.h"
+
+using namespace analyzer;
+
+static const auto dstlfirId = static_cast<libhei::NodeId_t>(
+    libhei::hash<libhei::NodeId_t>("MC_DSTL_FIR"));
+
+// Test multiple channel timeouts on at the same time
+TEST(ChnlTimeout, MultipleTimeouts)
+{
+    pdbg_targets_init(nullptr);
+
+    libhei::Chip proc0{util::pdbg::getTrgt("/proc0"), P10_20};
+
+    libhei::Signature sig1{proc0, dstlfirId, 0, 22, libhei::ATTN_TYPE_UNIT_CS};
+    libhei::Signature sig2{proc0, dstlfirId, 0, 23, libhei::ATTN_TYPE_UNIT_CS};
+
+    libhei::IsolationData isoData{};
+    isoData.addSignature(sig1);
+    isoData.addSignature(sig2);
+    ServiceData sd{sig1, AnalysisType::SYSTEM_CHECKSTOP, isoData};
+
+    RasDataParser rasData{};
+    rasData.getResolution(sig1)->resolve(sd);
+
+    nlohmann::json j{};
+    std::string s{};
+
+    // Callout list
+    j = sd.getCalloutList();
+    s = R"([
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "Priority": "H"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0",
+        "Priority": "L"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "P0",
+        "Priority": "L"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+
+    // Callout FFDC
+    j = sd.getCalloutFFDC();
+    s = R"([
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Bus Callout",
+        "Guard": false,
+        "Priority": "low",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    },
+    {
+        "Callout Type": "Hardware Callout",
+        "Guard": true,
+        "Priority": "high",
+        "Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+}
+
+// Test multiple channel timeouts on different MC_DSTL_FIR instances
+TEST(ChnlTimeout, DifferentInst)
+{
+    pdbg_targets_init(nullptr);
+
+    libhei::Chip proc0{util::pdbg::getTrgt("/proc0"), P10_20};
+
+    libhei::Signature sig1{proc0, dstlfirId, 0, 22, libhei::ATTN_TYPE_UNIT_CS};
+    libhei::Signature sig2{proc0, dstlfirId, 1, 22, libhei::ATTN_TYPE_UNIT_CS};
+
+    libhei::IsolationData isoData{};
+    isoData.addSignature(sig1);
+    isoData.addSignature(sig2);
+    ServiceData sd{sig1, AnalysisType::SYSTEM_CHECKSTOP, isoData};
+
+    RasDataParser rasData{};
+    rasData.getResolution(sig1)->resolve(sd);
+
+    nlohmann::json j{};
+    std::string s{};
+
+    // Callout list
+    j = sd.getCalloutList();
+    s = R"([
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "Priority": "H"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0",
+        "Priority": "L"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "P0",
+        "Priority": "L"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+
+    // Callout FFDC
+    j = sd.getCalloutFFDC();
+    s = R"([
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Bus Callout",
+        "Guard": false,
+        "Priority": "low",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    },
+    {
+        "Callout Type": "Hardware Callout",
+        "Guard": true,
+        "Priority": "high",
+        "Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+}
+
+// Test multiple channel timeouts on different processors
+TEST(ChnlTimeout, DifferentProc)
+{
+    pdbg_targets_init(nullptr);
+
+    libhei::Chip proc0{util::pdbg::getTrgt("/proc0"), P10_20};
+    libhei::Chip proc1{util::pdbg::getTrgt("/proc1"), P10_20};
+
+    libhei::Signature sig1{proc0, dstlfirId, 0, 22, libhei::ATTN_TYPE_UNIT_CS};
+    libhei::Signature sig2{proc1, dstlfirId, 0, 22, libhei::ATTN_TYPE_UNIT_CS};
+
+    libhei::IsolationData isoData{};
+    isoData.addSignature(sig1);
+    isoData.addSignature(sig2);
+    ServiceData sd{sig1, AnalysisType::SYSTEM_CHECKSTOP, isoData};
+
+    RasDataParser rasData{};
+    rasData.getResolution(sig1)->resolve(sd);
+
+    nlohmann::json j{};
+    std::string s{};
+
+    // Callout list
+    j = sd.getCalloutList();
+    s = R"([
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "Priority": "L"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0",
+        "Priority": "H"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "P0",
+        "Priority": "L"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+
+    // Callout FFDC
+    j = sd.getCalloutFFDC();
+    s = R"([
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Bus Callout",
+        "Guard": false,
+        "Priority": "low",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    },
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Connected Callout",
+        "Guard": true,
+        "Priority": "high",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+}
+
+// Test a single channel timeout
+TEST(ChnlTimeout, SingleTimeout)
+{
+    pdbg_targets_init(nullptr);
+
+    libhei::Chip proc0{util::pdbg::getTrgt("/proc0"), P10_20};
+
+    libhei::Signature sig1{proc0, dstlfirId, 0, 22, libhei::ATTN_TYPE_UNIT_CS};
+
+    libhei::IsolationData isoData{};
+    isoData.addSignature(sig1);
+    ServiceData sd{sig1, AnalysisType::SYSTEM_CHECKSTOP, isoData};
+
+    RasDataParser rasData{};
+    rasData.getResolution(sig1)->resolve(sd);
+
+    nlohmann::json j{};
+    std::string s{};
+
+    // Callout list
+    j = sd.getCalloutList();
+    s = R"([
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "Priority": "L"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0",
+        "Priority": "H"
+    },
+    {
+        "Deconfigured": false,
+        "Guarded": false,
+        "LocationCode": "P0",
+        "Priority": "L"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+
+    // Callout FFDC
+    j = sd.getCalloutFFDC();
+    s = R"([
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Bus Callout",
+        "Guard": false,
+        "Priority": "low",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    },
+    {
+        "Bus Type": "OMI_BUS",
+        "Callout Type": "Connected Callout",
+        "Guard": true,
+        "Priority": "high",
+        "RX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0",
+        "TX Target": "/proc0/pib/perv12/mc0/mi0/mcc0/omi0/ocmb0"
+    }
+])";
+    EXPECT_EQ(s, j.dump(4));
+}