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| Author | EIA |
|---|---|
| Editor | EIA |
| Document type | Standard |
| Format | File |
| ICS | 29.120.40 : Switches |
| Number of pages | 13 |
| Cross references | ANSI/EIA-448-21A (2000), IDT |
| Modify | EIA-448-21 (1989-09) |
| Year | 2000 |
| Document history | |
| Country | USA |
| Keyword | EIA 448;EIA 448.21A;EIA-448;448 |