EverFocus EDR-1640, EDR-920 manual Appendix D Recording times

APPENDIX D: Recording times

Average recording times, based on 100GB harddisk capacity.

Using the VBR (Variable Bit Rate) method, the storage requirement per image depends on the image’s colour and contrast content and captured motion.

The following calculations represent sample values for continuous recording. Actually achieved values may differ and can be calculated by means of test recordings if required.

The value IMAGES/S refers to the total DVR recording rate (all installed cameras).

CALCULATION BASE: 100 GB harddisk capacity

RESOLUTION:	720x288 (Half-D1)
RECORDING			IMAGE SIZE (KB)
RATE	LOWER	LOW	BASIC	STANDARD	HIGH	SUPERIOR
Images / s	3,5	3,9	4,2	4,9	5,6	6,4
			RECORDING TIME (HOURS)
200	39	35	33	28	24	21
100	79	71	66	56	49	43
50	159	142	132	113	99	87
25	317	285	265	227	198	174
8	992	890	827	709	620	543
4	1984	1781	1653	1417	1240	1085
1	7937	7123	6614	5669	4960	4340
RESOLUTION:	720x576 (D1)
RECORDING			IMAGE SIZE (KB)
RATE	LOWER	LOW	BASIC	STANDARD	HIGH	SUPERIOR
Images / s	7	8	8,5	10	11,2	12,5
			RECORDING TIME (HOURS)
100	39	34	33	27	24	22
50	79	69	66	55	49	44
25	159	139	131	111	99	89
8	496	434	408	347	310	278
4	992	868	817	694	620	556
1	3968	3472	3268	2778	2480	2222
RESOLUTION:	360x288 (CIF)
RECORDING			IMAGE SIZE (KB)
RATE	LOWER	LOW	BASIC	STANDARD	HIGH	SUPERIOR
Images / s	2	2,3	3	3,8	4,3	4,6
			RECORDING TIME (HOURS)
400	35	30	23	18	17	15
200	69	60	46	36	33	30
100	139	121	93	73	65	60
50	278	242	185	146	129	121
25	556	483	370	292	258	242
8	1736	1510	1157	914	807	755

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