### EIA-530/422 Cabling

Use these diagrams as a reference when building or purchasing EIA 530/422 cables. See Tips for Building and Purchasing Cables for cable length and quality concerns.

DB-25 Pin Number | EIA-530/422 Signal | DB-25 Male Connector
2 | TxD (A)
14 | TxD (B)
3 | RxD (A)
16 | RxD (B)
15 | TxCLKIN (A)
12 | TxCLKIN (B)
13 | CTS (B)
20 | DTE Ready (A)
23 | DTE Ready (B)
6 | DCE Ready (A)
22 | DCE Ready (B)
8 | Received Line Signal Detector (A)