4850 EP (250-5143) Pinouts Faxback Doc. # 1096 RS-232C SERIAL PORTS PARALLEL I/O PRINTER PORT PIN ASSIGNMENTS: PIN ASSIGNMENTS: 1 Carrier Detect 1 Strobe 10 ACKNOWLEDGE 2 Receive Data 2 Data Bit 0 11 BUSY 3 Transmit Data 3 Data Bit 1 12 PAPER END 4 Data Terminal Ready 4 Data Bit 2 13 SELECT 5 Signal Ground 5 Data Bit 3 14 AUTOFEED 6 Data Set Ready 6 Data Bit 4 15 ERROR 7 Request To Send 7 Data Bit 5 16 INITIALIZE 8 Clear To Send 8 Data Bit 6 17 SELECT IN 9 Ring Indicator 9 Data Bit 7 18-25 Ground KEYBOARD AND MOUSE CONNECTORS VIDEO PORT CONNECTOR PINOUT PIN ASSIGNMENTS: PIN ASSIGNMENTS: 1 Data 1 Red Video 2 Reserved 2 Green Video 3 Ground 3 Blue Video 4 +5 Vdc 4 Monitor ID Bit 2 (not used) 5 Clock 5 Ground 6 Reserved 6 Red return 7 Green Return 8 Blue Return 9 Key (no pin) 10 Sync Return (ground) 11 Monitor ID Bit 0 (ground) 12 Monitor ID Bit 1 (ground) 13 Horizontal Sync 14 Vertical Sync 15 Not Used FEATURE CONNECTOR PINOUT PIN FUNCTION PIN FUNCTION Y1 PD0 (DAC pixel data 0) Z1 Ground Y2 PD1 (DAC pixel data 1) Z2 Ground Y3 PD2 (DAC pixel data 2) Z3 Ground Y4 PD3 (DAC pixel data 3) Z4 Select External Video Y5 PD4 (DAC pixel data 4) Z5 Select External Sync. Y6 PD5 (DAC pixel data 5) Z6 Select External DAC Y7 PD6 (DAC pixel data 6) Z7 Not Used Y8 PD7 (DAC pixel data 7) Z8 Ground Y9 DAC Clock Z9 Ground Y10 DAC Blanking Z10 Ground Y11 Ext. Horizontal Sync. Z11 Ground Y12 Ext. Vertical Sync. Z12 Not Used Y13 Ground Z13 Not Used (smm 08/05/93)