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Mail Merry Systems Inc. |
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Hewlett Packard 88780 9-Track
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| Formatted Data
Capacity: (2400 ft. tape) |
280-700 Mbytes, typical
(GCRXC)** 140 Mbytes, typical (GCR) 40 Mbytes, typical (PE) 20 Mbytes, typical (NRZI) |
Tape Speed |
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| Transfer Rate To/From Tape: | 769 Kbytes/sec. (GCR)
max.; 208 Kbytes/sec. (PE) max. |
| Read/Write: | 125 ips |
| Rewind: | 90 sec. to rewind 2400 ft. |
Density |
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| Standard: | 6250 bpi (GCR); 1600 bpi (PE) |
| Optional: | 6250 cpi (GCRXC)** (supported only on SCSI); 800 bpi (NRZI) |
Power Requirements |
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| Line Voltage: | 100-120 VAC; 200-240 VAC |
| Line Frequency: | 50-60 Hz. |
| Power Consumption: | 250 W max.; 20 W stand
by; 170 W idle |
Physical |
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| Height: | 222 mm. (8.75 in.) |
| Width: | Front panel: 483 mm.
(19.0 in.); Casting: 429 mm. (16.9 in.) |
| Depth: | Overall: 681 mm. (26.8
in.); Behind Panel: 610 mm. (24.0 in.) |
| Weight: | 39 kg. (186 lbs.) |
| Product Certification: | UL 478 (5th edition):
CSA C22.2 No. 220-M1986 IEC 380: IEC 435: FCC 47 CFR Part 15 Subpart J (Level A); FTZ Level B 1046/84 (with Level B controller) VDE 0806, VDE 0805 (Component approved): SASO: CISPER 22 (Class A); South African Bureau of Standards, Standards Act, March 1983, Notice R452... |
| Max. Block Rise On Tape: | (May be limited by the host operating system); 256 Kbytes, (GCRXC)**; 256 Kbytes, (GCR); 64 Kbytes, (PE) interface specific; 64 Kbytes, (NRZI) |
| Reliability: | MTBF: 22,400 hours* MTTR: 30 minutes Read error rates: GCR hard: 1 in 10" at 90% statistical confidence; PE: 1 in 10" at 90% statistical confidence. |
Functional Character |
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| Internal Buffer Size: | 512 Kbytes |
| Operating Mode: | Streaming |
| Interfaces: | SCSI (single-ended
& differential) Pertec-compatible |
Environmental Conditions |
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| Operating Temperature: | 15 to 32 C,
non-condensing (range limited by media) |
| Storage Temperature: | -40 to 70 C |
| Shipment Temperature: | -40 to 70 C |
| Rate Of Change: | 20 degrees C/hr. |
| Relative Humidity: | Operating: 20 to 80%,
(less than 25 C max. wet bulb temp.); Storage or shipment: 90% at 40 C |
| Altitude: | Operating: 3000 m.
(10,000 ft) Non-operating: 15,300 m. (50,000 ft) |
Vibration |
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| Operating, Random: | 5-500 Hz. approx. 0.21g. rms. |
| Non-operating, Random: | 5-500 Hz. approx. 2g. rms. |
| Non-operating, Swept Sine: | 5-500-5 Hz., 0.5 g. rms. (0-peak) |
Audible Noise |
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| Read/write Operations: (A-weighted sound power) |
6.6 Bels A |
| Tape-loading Operation: (A-weighted sound power) |
7.2 Bels A |
* Faliure rates are derived from a large data base of test samples. The actual faliure rate will vary from unit to unit. Not responsible for typographical errors. ** GCRXC is a Hewlett Packard data compression protocol implemented almost exclusively in non-PC HP computer systems. |
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