E-51
Appendix
Connection Pin Assignments

Analog Computer 1 and 2 Signal Input Ports: 15-pin mini D-sub female connector

Computer Input
Analog
1. Video input (red)
2. Video input
(green/sync on green)
3. Video input (blue)
4. Reserve input 1
5. Composite sync
6. Earth (red)
7. Earth (green/sync on green)
8. Earth (blue)
9. Not connected
10. GND
11. GND
12. Bi-directional data
13. Horizontal sync signal
14. Vertical sync signal
15. Data clock
1
15
56
11
10
Pin No. Signal Name I/O Reference
1 CD Not connected
2 RD Receive Data Input Connected to internal circuit
3 SD Send Data Output Connected to internal circuit
4 ER Not connected
5 SG Signal Ground Connected to internal circuit
6 DR Data Set Ready Output Not connected
7 RS Request to Send Output Connected to internal circuit
8 CS Clear to Send Input Connected to internal circuit
9 CI Not connected
Pin No. Signal Name I/O Reference
1 VCC 3.3V (Reserved) Output Not connected
2 RD Receive Data Input Connected to internal circuit
3 SD Send Data Output Connected to internal circuit
4 EXIR Detector of Option Unit Input Not connected
(Reserved)
5 SG Signal Ground Connected to internal circuit
6 ERX IR Receive Signal from Input Not connected
IR Amplifier (Reserved)
7 RS Request to Send Output Connected to internal circuit
8 CS Clear to Send Input Connected to internal circuit
9 ETX IR Transmit Signal Output Not connected
(Reserved)

RS-232C Terminal: 9-pin Mini DIN connector

6
8
4
97
3
5
21

RS-232C Port: 9-pin D-sub male connector of the DIN-D-sub RS-232C cable

15
69