PRS250/255 Specifications

Rack Space

8 RU

Protection

	Drive Failure Configured as four arrays of 4 data drives and 1 parity drive; Hot swap capability
	Rebuild time Varies based on application and amount of data: typically >4 hours for an on-air system
	Power Supply Failure 3 supplies, 2 required for operation; Hot swap capability
	Fan Failure 6 fans, 4 required for operation; Hot swap capability
	Controller Failure Manual switch-over; Hot swap capability
	(A spare controller is a recommended accessory: order PRSCTLU)

Profile Requirements

Profile cannot have internal video drives.

When connecting more than one PRS250/255, they should be split between 2 SCSI buses as evenly as possible.

AC Power

	Input Requirements 100­240 VAC, ±15%, single phase input, 47­63 auto selecting, 9.0 A max. (@100 V input)
	VA Rating 900 VA max
	Input Watts 880 W
	Power Factor 0.95 (minimum @ full power)
	Heat Dissipation 3000 BTU/hr max
	Inrush Current 60 A max for ½ line cycle @ 240 VAC
	AC Inlet C 22 appliance coupler
	AC Protection 12 A circuit breaker

Dimensions

Rackmount Enclosure

		cm	in
	Height	35.6	14
	Width	48.2	19
	Depth	76.2	30
		kg	lb
	Weight	79.2	176

Operating Environment

	Temperature 10­38°C (50­100.4°F)
	Temperature Gradient 10°C/hr
	Relative Humidity 20­80% (noncondensing)
	Elevation 2438.4 m (8000 ft)
	Shock 3 g @ 11 ms, ½ sine pulse
	Vibration 0.25 g @ 5­500 Hz

Safety and Emissions

FCC Class A, UL 1950, CSA C22.2-950, EN60950, VCCI Class 1, EN55022 Class A, TUV GS, CE Mark

Warranty

One year return-to-depot, advance module exchange, hotline support, and maintenance software releases.

Configuration Chart

	Profile MPEG Configurations (inputs/outputs)	Maximum Bit Rate	Required RAID System	PRS250 Storage Times@ 12 Mb (2 audio ch/video)	PRS255 Storage Times@ 12 Mb (2 audio ch/video)
	PDR 304	24 Mb	PRS250/255 opt 10	10 hr	20 hr
	PDR 312	24 Mb	PRS250/PRS255 opt 05	5 hr	10 hr
	PDR 312	50 Mb	PRS250M/255M opt 10	10 hr	20 hr
	PDR 324	24 Mb	PRS250M/PRS255M opt 10	10 hr	20 hr
	PDR 316	24 Mb	PRS250M/255M opt 15	15 hr	30 hr
	PDR 308	24 Mb	PRS250M/PRS255M opt 20	20 hr	40 hr

	Profile JPEG Configurations (inputs/outputs)	Maximum Bit Rate	Required RAID System	PRS250 Storage Times@ 24 Mb (2 audio ch/video)	PRS255 Storage Times@ 24 Mb (2 audio ch/video)
	PDR 204	24 Mb	PRS250/255 opt 10	5.5 hr	11 hr
	PDR 204	36 Mb	PRS250/PRS255 opt 15	8.2 hr	16.4 hr
	PDR 204	48 Mb	PRS250/255 opt 20	11 hr	22 hr
	PDR 202	24 Mb	PRS250/PRS255 opt 05	2.5 hr	5.75 hr
	PDR 202	48 Mb	PRS250/255 opt 10	5.5 hr	11 hr

Storage Times

PRS250/M RAID Storage with 2 channels of Audio/Video

	Storage	8 Mb/s (hours)	12 Mb/s (hours)	15 Mb/s (hours)	24 Mb/s (hours)	36 Mb/s (hours)	48 Mb/s (hours)
	36 GB (Opt. 05)	7.3	5.0	4.4	2.8
	72 GB (Opt. 10)	14.6	10.0	8.8	5.6	3.9	3.0
	104 GB (Opt. 15)	21.9	15.0	13.2	8.4	5.9	4.5
	144 GB (Opt. 20)	29.2	20.0	17.6	11.2	7.8	6.0

PRS255/M RAID Storage with 2 channels of Audio/Video

	Storage	8 Mb/s (hours)	12 Mb/s (hours)	15 Mb/s (hours)	24 Mb/s (hours)	36 Mb/s (hours)	48 Mb/s (hours)
	72 GB (Opt. 05)	14.2	10.0	8.5	5.5
	144 GB (Opt. 10)	28.4	20.0	17.0	11.0	7.6	5.8
	208 GB (Opt. 15)	42.6	30.0	25.5	16.5	11.4	8.7
	288 GB (Opt. 20)	56.8	40.0	34.0	22.0	15.2	11.6