NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN ETS 300453 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| EN 60950 | 1992-08 | Safety of information technology equipment, including electrical business equipment (IEC 60950:1991, modified) More |
| ETS 300451 | 1996-02 | Business TeleCommunications (BTC) - Ordinary quality voice bandwidth 4-wire analogue leased line (A4O) - Connection characteristics and network interface presentation More |
| ETS 300452 | 1996-02 | Business TeleCommunications (BTC) - Special quality voice bandwidth 4-wire analogue leased line (A4S) - Connection characteristics and network interface presentation More |
| ITU-T M.1040 | 1988-11 | Characteristics of ordinary quality international leased circuits More |
