Page 860 of 906 QPC513 Enhanced Serial Data Interface card553-3001-211 Standard 3.00 August 200517 Receiver signal element timing (DCE) — 3 DD24 Transmitter signal element timing (DTE) 3 — DATable 269Connector J1 and J2 pin assignments – high-speed interface (Part 1 of 2)Pin number Signal functionsSignal sourceEIAcircuit(lead)To DCEFromDCEGround andcommon return17ShieldSignal ground (SG)n/an/an/an/a ABData231316Transmitted data – lead AReceived data – lead ATransmitted data – lead BReceived data – lead B3—3——3—3BA (A)BB (A)BA (B)BB (B)Control456820Request to send (RTS)Clear to send (CTS)Data set ready (DSR)Carrier detect (CD)Data terminal ready (DTR)3———3—333CACBCCCFCDNote: Pins not used are 9, 10, 11, 18, 19, 21, 22, 25.Table 268Connector J1 and J2 pin assignments – RS-232-C interface (Part 2 of 2)Pin number Signal functionsSignal sourceEIAcircuitTo DCE From DCENote: Pins not used are 9 to 14, 16, 18, 19, 21, 22, 25.
