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--- smpte-352_link_number [2016/11/22 12:31] – walkeradmin
+++ smpte-352_link_number [2023/03/09 22:35] (current) – external edit 127.0.0.1
@@ Line 30: / Line 30: @@
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+Now enter the command <color red>RepConsole</color>
+\\
+    RepConsole, you will now see the prompt change to REP>
+\\
+\\
+To see the SMPTE-352 Link Numbers, enter the following command:
+\\
+    video status
+    The output will be similar to the following:
+    SDI input 0 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    SDI input 1 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 1)
+    SDI input 2 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 2)
+    SDI input 3 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 3)
+    UHD input remapping: none
+    Video set to 2160p (interleaved format) at 59.94 frames/s
+    Video source is SDI (video locked)
+    Action on video loss is freeze frame without ident text
+    Front panel video monitor source is output 0 to NARA
+\\
+We can see in the above example that the SMPTE-352 link numbers are 0-0, 1-1, 2-2 and 3-3, so they are in the correct order. For this reason the line <color red>UHD input remapping</color> is set to <color red>none</color>, as no remapping is required.
+\\
+\\
+In the next example, the 3G-SDI inputs have been connected in an incorrect order:
+\\
+    SDI input 0 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    SDI input 1 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 1)
+    SDI input 2 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 3)
+    SDI input 3 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 2)
+    UHD input remapping: SDI 0 -> UHD 0, SDI 1 -> UHD 1, SDI 2 -> UHD 3, SDI 3 -> UHD 2
+    Video set to 2160p (interleaved format) at 59.94 frames/s
+    Video source is SDI (video locked)
+    Action on video loss is freeze frame without ident text
+    Front panel video monitor source is output 0 to NARA
+\\
+Here we can see that the SMPTE-352 order is 0,1,3,2. So the last two inputs are swapped. Although the AVP HEVC card can cope with this, and the encode will look fine (because the SMPTE-352 link numbers are present) we can see that the <color red>UHD input remapping</color> is now reporting <color red>SDI 0 -> UHD 0, SDI 1 -> UHD 1, SDI 2 -> UHD 3, SDI 3 -> UHD 2</color> to let us know that the AVP is dealing with a mis-plugged input.
+\\
+\\
+I tested this in Quad mode (the AJA Ki Pro allows you to select either Sqare or 2SI output) and got the following:
+\\
+    SDI input 0 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    SDI input 1 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    SDI input 2 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    SDI input 3 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
+    UHD input remapping: none
+    Video set to 2160p (interleaved format) at 59.94 frames/s
+    Video source is SDI (video locked)
+    Action on video loss is freeze frame without ident text
+    Front panel video monitor source is output 0 to NARA
+\\
+Here we can see that there are no SMPTE-352 Link numbers present, so perhaps SMPTE-352 Link numbers are only part of the interleaved specification.
+\\
+\\