diff --git a/sf_daq_broker/detector/buffer_reader.py b/sf_daq_broker/detector/buffer_reader.py
index 7e030b7..59b669b 100644
--- a/sf_daq_broker/detector/buffer_reader.py
+++ b/sf_daq_broker/detector/buffer_reader.py
@@ -80,30 +80,3 @@ class BufferReader(object):
     def close_file(self):
         if self._file:
             self._file.close()
-
-
-class RamBuffer(object):
-    def __init__(self, n_modules, n_slots):
-        self.n_modules = n_modules
-        self.n_slots = n_slots
-
-        self.raw_buffer = bytearray(self.n_modules * self.n_slots * BUFFER_FRAME_BYTES)
-
-    def get_buffers(self, module_id, pulse_id):
-        # pulse_id index in RAM buffer
-        buffer_index = pulse_id % self.n_slots
-        # pulse_id index bytes offset in RAM buffer
-        pulse_id_offset = buffer_index * self.n_modules * BUFFER_FRAME_BYTES
-
-        # Pulse_id slot offset + module_id offset in meta buffer.
-        meta_offset_start = pulse_id_offset + (module_id * META_FRAME_BYTES)
-        meta_offset_end = meta_offset_start + META_FRAME_BYTES
-
-        # Pulse_id slot offset + metadata buffer offset + module_id offset in data buffer.
-        data_offset_start = pulse_id_offset + (self.n_modules * META_FRAME_BYTES) + (module_id * DATA_FRAME_BYTES)
-        data_offset_end = data_offset_start + DATA_FRAME_BYTES
-
-        meta_buffer = memoryview(self.raw_buffer)[meta_offset_start:meta_offset_end]
-        data_buffer = memoryview(self.raw_buffer)[data_offset_start:data_offset_end]
-
-        return meta_buffer, data_buffer
diff --git a/sf_daq_broker/detector/ram_buffer.py b/sf_daq_broker/detector/ram_buffer.py
new file mode 100644
index 0000000..191128a
--- /dev/null
+++ b/sf_daq_broker/detector/ram_buffer.py
@@ -0,0 +1,28 @@
+from sf_daq_broker.detector.buffer_reader import BUFFER_FRAME_BYTES, META_FRAME_BYTES, DATA_FRAME_BYTES
+
+
+class RamBuffer(object):
+    def __init__(self, n_modules, n_slots):
+        self.n_modules = n_modules
+        self.n_slots = n_slots
+
+        self.raw_buffer = bytearray(self.n_modules * self.n_slots * BUFFER_FRAME_BYTES)
+
+    def get_buffers(self, module_id, pulse_id):
+        # pulse_id index in RAM buffer
+        buffer_index = pulse_id % self.n_slots
+        # pulse_id index bytes offset in RAM buffer
+        pulse_id_offset = buffer_index * self.n_modules * BUFFER_FRAME_BYTES
+
+        # Pulse_id slot offset + module_id offset in meta buffer.
+        meta_offset_start = pulse_id_offset + (module_id * META_FRAME_BYTES)
+        meta_offset_end = meta_offset_start + META_FRAME_BYTES
+
+        # Pulse_id slot offset + metadata buffer offset + module_id offset in data buffer.
+        data_offset_start = pulse_id_offset + (self.n_modules * META_FRAME_BYTES) + (module_id * DATA_FRAME_BYTES)
+        data_offset_end = data_offset_start + DATA_FRAME_BYTES
+
+        meta_buffer = memoryview(self.raw_buffer)[meta_offset_start:meta_offset_end]
+        data_buffer = memoryview(self.raw_buffer)[data_offset_start:data_offset_end]
+
+        return meta_buffer, data_buffer