
Cabling | Appendix | 
Legend:
Data
USB
I2C
SATA
Power
 Adapter
SAS
ATA 100
IDE
ATX PSU /4 PIN
CPU
SYS
ATX  | 
  | FAN2  | 
PSU / 24PIN  | 
  | SYS  | 
FRONTPANEL  | ||
  | 
  | |
  | IDE PRIMARY  | 
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SAS 
LOWER  | UP  | INTRUSION  | 
BPL LED  | BPL LED  | 
  | 
USB DAT  | 
  | 
  | 
SATA  | SYS  | 
  | FAN1  | 
<- P1
<- P7
PSU 
PRIMERGY TX120 / D2550
Overview Cabling Power cable 
1x2.5“ BPL, optical drive & Tape
USB TAPE
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P2   | P3   | ||||||
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BPL  | Port2  | Port1  | CN1  | 
LED
UPPER
SAS
BPL
P5 
optical Drive  | 
Figure 29: Power cable: SAS backplane, backup drive and CD/DVD drive
48  | Options Guide  | TX120  |