TEMPEST product descriptions are provided by the vendor without modification by the U.S. Government. NSA is not responsible for the accuracy or content of the product descriptions.
TEMPEST Level I|
No longer produced|
Presentey Engineering Prod. Ltd.|
The Presentey Engineering 875T is a desk-top plain paper digital laser facsimile transceiver based on the Ilex Systems Inc. Model 875 Security Fax. The 875T TEMPEST plain paper facsimile is uniquely configured with auto-selectable dual-bin, paper cassettes for letter and legal size sheets, plus a 30 page automatic document feeder. The 875T provides either synchronous or asynchronous digital communications through STU-III, STU-II, KG-84A/C, KY-57/58/68 or other GFE encryption equipment.
Interfaces types: RS-232C Digital
- asynchronous (2.4kbps - 19.2kbps) (lower speeds optional)
- synchronous (2.4kbps - 16kbps)
- Horizontal: Flatbed scanning with contact image sensor
- Vertical: Inermittent scanning by stepper motor
Recording Method: Electro-photographic laser beam printing on cut sheet plain paper
Standard Protocols Supported: MIL-STD-188-161C Type 1 and STANAG 5000 Type 1
CCITT Nonstandard (Modified G3) Protocols Supported: R3312/TA, R2112T (both synchronous & asynchronous) and V3500T (Rev. A & B)
Copy Contrast Control: Three selections available: Darker, lighter, auto. Halftone reproduction capability controlled by 16 levels of gray scale
Original Document Size: Maximum 11" x 39.4", Minimum 6.4" x 2.9"
Recording Paper Size: 8.5" x 11" or 14" (500 sheets maximum)
*Auto protocol detection in receive and transmit mode
*5-second fast scan to memory to save operator time
*Standard and fine resolutions with 3-level contrast control
*Transmission/reception, activity and configuration reports
*Auto-dial, polling and turn-around polling capabilities
*Statistical multiplexer, X.25 PAD and digital PBX compatible
*Two-way ASCII terminal mode
Dimensions: 18.7"W x 19.0"D x 9.0"H (excluding trays and other projections)
Weight: 55 lbs.
Power: 115/230 VAX, 50/60 Hz (internally switchable); 570 watts
|* Model 875T||Basic configuration|
|* Model 875T-D||Basic configuration plus Dual Mode operation as defined in MIL-STD-188-161C Type 1 providing the standard digital output plus an analog output for interoperability with CCITT Group 3 facsimile equipment.|