diff --git a/Collection Models/ONU Information Collection/ONU remote information/an-epon-onu-transceivers.proto b/Collection Models/ONU Information Collection/ONU remote information/an-epon-onu-transceivers.proto
index 52479a6819efecd96ca5207bf90d0d97a6a0b5de..5cdc4908fa4ff0e4e0caab49f5262a0952a5d911 100644
--- a/Collection Models/ONU Information Collection/ONU remote information/an-epon-onu-transceivers.proto	
+++ b/Collection Models/ONU Information Collection/ONU remote information/an-epon-onu-transceivers.proto	
@@ -21,7 +21,7 @@ message EponOnuTransceivers {
         //The current voltage of the optical module.The unit is 0.01V.
         int32 optical_unit_voltage = 6;
 
-        // Optical module type.(0:unknown,1:gpon,2:xg-pon,3:xgs-pon,4:gpon-and-xgpon,5:gpon-and-xgspon,-1:invalid)
+        // Optical module type.(0:unknown,1:epon,2:10g-epon-s,3:10g-epon-a,-1:invalid)
         int32 module_type = 7;
 
         //Optical module subtype.
diff --git a/Collection Models/Optical Link Information Collection/an-epon-pm-olt-transceivers.proto b/Collection Models/Optical Link Information Collection/an-epon-pm-olt-transceivers.proto
index 4d1c35351381fd12ff22c429b29b0db9fac3a085..8d962a746533157a90df8e38d68d0fb60a83ccb1 100644
--- a/Collection Models/Optical Link Information Collection/an-epon-pm-olt-transceivers.proto	
+++ b/Collection Models/Optical Link Information Collection/an-epon-pm-olt-transceivers.proto	
@@ -36,7 +36,7 @@ message EponPmOltTransceivers {
         //Optical power at idle time of channel 2.The unit is 0.01dBm.
         int32 channel_2_idle_rssi = 11;
 
-        //Optical module type.(0:unknown,1:gpon,2:xg-pon,3:xgs-pon,4:gpon-and-xgpon,5:gpon-and-xgspon,-1:invalid）
+        //Optical module type.(0:unknown,1:epon,2:10g-epon-s,3:10g-epon-a,-1:invalid)
         int32 module_type = 12;
 
         //Optical module subtype