
Drive Connectors –SD-R2612 
Figure 1.SD-R2612  DVD Writeable Drive Rear Panel – Connector
ATAPI A 
Limited 
Table 1.Interface Pin Assignments
PIN | I/O  | SIGNAL NAME | PIN  | I/O  | SIGNAL NAME  | 
NO.  | 
  | 
  | NO.  | 
  | 
  | 
1  | O  | Audio   | 2  | O  | Audio   | 
3  | 
  | Audio Ground  | 4  | 
  | Digital Ground  | 
5  | I  | /RESET  | 6  | I/O  | DD8  | 
7  | I/O  | DD7  | 8  | I/O  | DD9  | 
9  | I/O  | DD6  | 10  | I/O  | DD10  | 
11  | I/O  | DD5  | 12  | I/O  | DD11  | 
13  | I/O  | DD4  | 14  | I/O  | DD12  | 
15  | I/O  | DD3  | 16  | I/O  | DD13  | 
17  | I/O  | DD2  | 18  | I/O  | DD14  | 
19  | I/O  | DD1  | 20  | I/O  | DD15  | 
21  | I/O  | DD0  | 22  | O  | DMARQ  | 
23  | 
  | Ground  | 24  | I  | /DIOR: /  | 
  | 
  | 
  | 
  | 
  | HDMARDT:  | 
  | 
  | 
  | 
  | 
  | HSTROBE  | 
25  | I  | /DIOW:STOP  | 26  | 
  | Ground  | 
27  | O  | IORDY: /  | 28  | I  | /DMACK  | 
  | 
  | DDMARDY:  | 
  | 
  | 
  | 
  | 
  | DSTROBE  | 
  | 
  | 
  | 
29  | O  | INTRQ  | 30  | O  | /IOCS16  | 
31  | I  | DA1  | 32  | I/O  | /PDIAG  | 
33  | I  | DA0  | 34  | I  | DA2  | 
35  | I  | /CS1FX  | 36  | I  | /CS3FX  | 
37  | I/O  | /DASP  | 38  | I  | +5V (Motor)  | 
39  | I  | +5V (Motor)  | 40  | I  | +5V (Motor)  | 
41  | I  | +5V (Logic)  | 42  | I  | +5V (Logic)  | 
43  | 
  | Ground  | 44  | 
  | Ground  | 
45  | 
  | Ground  | 46  | 
  | Ground  | 
47  | I  | CSEL  | 48  | 
  | Ground  | 
49  | I  | Vendor Unique*  | 50  | I  | Vendor Unique*  | 
*Vender Unique, don't connect pins
11