1964_IMPORT_AND_EXPORT_(STRATEGIC_COMMODITIES)_REGULATIONS — Page 69

1988 Ed.]

Import and Export (Strategic Commodities) Regulations

[CAP. 60

G 69

[Subsidiary]

IL 1527

(c) Opitcal-fibre communication cable or optical fibres therefor, having any of the

following characteristics:

(1) An attenuation at any operating wavelength of 3.0 dB/km or less;

(2) Optical fibres capable of withstanding a "proof test" tensile stress of

1.1 x 10° N/m2,

Technical Note:

"Proof test" consists of on-line or off-line production screen testing that dynamically applies a prescribed tensile stress over a 0.5 to 3 m length of fibre at a running rate of 2 to 5 m/sec while passing between capstans approximately 15 cm in diameter. The ambient temperature is a nominal 20°C and relative humidity a nominal 40 per cent.

(3) Specially designed for underwater use;

(4) Specially designed to be insensitive to nuclear radiation;

(d) Optical fibres for sensing purposes, haying any of the following characteristics:

(1) Specially fabricated either compositionally or structurally, or modified by coating to be acoustically, thermally, inertially, electromagnetically or nuclear radiation sensitive;

(2) Modified structurally or by coating to have either very low ("beat length"

greater than 50 cm) or very high (“beat length" less than 5 cm) birefringence; Technical Note:

"Beat length" is defined as the distance over which two orthogonally polarized signals, initially in phase, must pass in order to achieve 2n radian(s) phase difference.

(e) Secure communication cable, being either coaxial or multi-conductor communica- tion cable protected by mechanical or electrical means from physical damage or intrusion in such a manner that communications security is maintained between terminals without the necessity for encryption;

(/) Components and accessories specially designed for the above optical fibres or cable, including fibre-optic bulkhead or hull penetration connectors impervious to leakage at any depth for use in ships or vessels, and multiport fibre-optic couplers (including but not limited to T, star, bi-directional and wavelength division multiplexing and demultiplexing couplers), except connectors for use with optical fibres or cable with a repeatable coupling loss of 0.5 dB or more.

(See also Item/ML 9(g) on the Munitions List.)

Notes:

1.

2.

3.

4.

5.

Sub-item (e) above does not embargo cable that is "armoured" by only either a tough outer sheath or by an electromagnetic screen.

Associated equipment for sub-items (a), (b), (c) and (d), and specially designed components therefor, are considered under Item IL 1519.

For military type cable (shear-resistant, etc) see Item ML 11 on the Munitions List. Not used.

Not used.

Cryptographic equipment and specially designed components therefor, designed to ensure secrecy of communications (such as telegraphy, telephony, facsimile, video, and data communications) or of stored information; and "software" controlling or computers performing the functions of such cryptographic equipment.

Notes:

1.

This Item also covers video systems which, for secrecy purposes, use digital techniques (conversion of an analogue, i.e. video or facsimile, signal into a digital signal).

Z. This Item is not intended to cover simple cryptographic devices or equipment only

ensuring the privacy of communications, as follows:

(a) Equipment for voice transmission making use of fixed frequency inversions or fixed band scrambling techniques in which the transposition changes occur not more frequently than once every 10 seconds;