Serial Communications Jacks and Plugs
These are primarily for reference.
DB9/DB15/DB25
V.21/V.24 Connectors
DB-9 Serial
DB-25 RS-232
RS-232 to RS-530
RS-449
RS-449 Secondary
RS-449 Interface
EIA530 Interface Pinout
EIA530 Interface Definitions
V.35 Connector Pin Assignments
RS-232 on 8-pin Modular

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