2500 RSX  (250-1620/1621)            Pinouts           Faxback Doc. # 1894

Video Port Connector:                         Keyboard and Mouse Connectors:

Pin #  Function                                Pin #  Assignments

 1     Red Video                                1     Data
 2     Green Video                              2     Reserved
 3     Blue Video                               3     Ground
 4     Monitor ID Bit 2 (diagnostic)            4     +5VDC
 5     Ground                                   5     Clock
 6     Red Return (ground)                      6     Reserved
 7     Green Return (ground)
 8     Blue Return (ground)
 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 (diagnostic)

Peripheral Interfaces:

RS-232C Serial Port:                 Parallel I/O Port:

Pin #  Assignments             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    Auto Feed
 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


(smm 08/24/93)