ARM Electronics C4TMX - Manual (Page 7)

Front Panel Definition
1~4 : Full channel display CH1~CH4 in live or playback mode on VCR
5 : Quad display in live or playback mode on VCR
6 : PIP display in live mode or 9 split display in playback mode
7 : 2x2 Zoom picture display in live or playback mode on VCR
8 : Freeze display in live mode
9 : Menu setup and Enter
10 : Select camera various display in Quad or PIP mode
11 : VCR playback mode
12 : Live display mode
13 : Up
14 : Right/Auto ( Sequence display in full ch mode or PIP mode )
15 : Down
16 : Left
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