diff --git a/python/lsst/obs/fiberspectrograph/translator.py b/python/lsst/obs/fiberspectrograph/translator.py
index 4fcfd4b..f440508 100644
--- a/python/lsst/obs/fiberspectrograph/translator.py
+++ b/python/lsst/obs/fiberspectrograph/translator.py
@@ -33,10 +33,11 @@ class FiberSpectrographTranslator(LsstBaseTranslator):
 
     _const_map = {
         "detector_num": 0,
-        "detector_name": "0",
+        "detector_name": "ccd0",
+        # TODO: DM-43041 serial number should be put
+        # in header when using several fiber spec
         "object": None,
         "physical_filter": "empty",
-        "detector_serial": "1606191U1",
         "detector_group": "None",
         "relative_humidity": None,
         "pressure": None,
@@ -47,12 +48,14 @@ class FiberSpectrographTranslator(LsstBaseTranslator):
         "tracking_radec": None,
         "telescope": SIMONYI_TELESCOPE,
         "observation_type": "spectrum",  # IMGTYPE is ''
+        # "controller": 'O',
     }
     """Constant mappings"""
 
     _trivial_map = {
         "observation_id": "OBSID",
         "science_program": ("PROGRAM", dict(default="unknown")),
+        "detector_serial": "SERIAL",
     }
     """One-to-one mappings"""
 
@@ -75,6 +78,7 @@ def can_translate(cls, header, filename=None):
             otherwise.
         """
 
+        # TODO: DM-43041 need to be updated with new fiber spec
         return "INSTRUME" in header and header["INSTRUME"] in ["FiberSpectrograph.Broad"]
 
     @cache_translation