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)