Avision AV620C2+ (DF-1015S/DF-1004S) - Manual (Page 9)

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Note:
1. Only use the AC adapter (HEG42-240200-7L made by
HiTron or DA-48M24 made by APD) included in the
machine. Using other AC adapters may damage the
machine and void the warranty.
2. Please unpack the packing carefully, and check the contents
against the checklist. If any items are missing or damaged,
please contact your dealer immediately.