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Sec-Line Phone Fax 2000Xe
Digital Encryption Unit for Phone and Fax

SLPF2000Xe is a high-secure digital encryption system from Ardy Electronics Ltd. This encryption unit can be installed to analogue phone lines world wide to encrypt voice and fax communication. Any quality analogue or digital phone can be connected to the Voice encryption module. Green or Red indication for Secure or Insecure connection.


SLPF2000Xe voice encryption unit uses Diffie Hellman with 1024 bit PKI handshake to start the secure connection and triple DES as per ANSI specification X9.52 as encryption algorithm with a 168-bit unique random synchronous encryption key negotiated for each call. The voice module uses key fingerprint display that prevents man-in-the-middle attacks with an Optional PIN-based access control possibility. SLPF2000Xe connects in moments to the handset and offers the following features: Strong Encryption Technology, Clear Voice Quality, One Button Operation, Universal Telephone Compatibility.

SLPF2000Xe fax encryption unit uses a proprietary symmetric algorithm with 480 bit key with key management according to ANSI standard with input of encryption keys from smart cards or manually from system keyboard. User smart card contains 100 encryption keys, which can be loaded to the encryption processor from the smart card reader. The fax module is installed between the telephone line and the Telefax terminal, and can be installed at all Telefax types with group 3 communication.

SLPF2000Xe has to be installed at both sides of the communication in order to establish a secure connection. The unit can be used for both secure and clear phone/fax calls. The SLPF2000Xe is fully compatible to the stand alone SLR2000Xe voice encryption unit and fully compatible with the stand alone SLF2000Xe fax encryption unit.

Technical Voice Data  
Modem: 9600 bps CCITT V.32 full duplex, echo canceling
Voice encoder: ITU G.729 AS-CELP at 8kbps
Connection: analogue telephone line
Operation: full duplex
AC-power requirements: adapter 240/110VAC 50/60 Hz
DC-power requirements: 12 VDC 1000 mA
Encryption Voice Data  
Algorithm: Triple DES as per ANSI specification X9.52
Symmetric key length: 168-bit unique, random key
Symmetric key combinations: 1051
PKI algorithm: Diffie-Hellman exponentiation
PKI encryption key length: 1024 bits
Public Key length: 256 bits
PKI Key combinations: 10308
Technical Fax Data  
Transmission: according to CCITT group 3,T30.
Synchronous speed: 2400, 4800, 7200, 9600,14400 bps.
Communication fully: transparent, or encrypted.
Display: 2x16 character.
Electrical interface: phone-line.
Encryption Fax Data  
Encryption: Ardy hardware encryption processor.
Algorithm: Ardy stream cipher.
Key management: manual/ (auto as option).
Key distribution: smart cards.
Key length: continuously changed 480 bits.
Key input: manual or smart card.
Synchronization: encrypted initialization vector.
Tamper protection: automatic internal protection.
Other Data  
Temperature range operating: 0 to 50 C
Temperature range storage: -20 to 75 C
Size: 280 x 190 x 60 mm
Weight: 2.0 kg
Cover: Plastic
For more information see: data sheet for SLF2000Xe and SLR2000Xe
Technical information refer to: Users manual for SLF and SLR units