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5-8 C141-E203-01EN
5.1.4 Connector pinouts
The pin definitions are shown in Table 5.2.
Table 5.2 Connector pinouts
Signal segment key
S1 Gnd 2nd mate
S2 A+
S3 A-
Differential signal pair A from Phy
S4 Gnd 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+
Signal
segment
S7 Gnd 2nd mate
Signal segment “L”
Central connector polarizer
Power segment “L”
P1 V33 3.3 V power *1
P2 V33 3.3 V power *1
P3 V33 3.3 V power, pre-charge, 2nd mate *1
P4 Gnd 1st mate
P5 Gnd 2nd mate
P6 Gnd 2nd mate
P7 V5 5 V power, pre-charge, 2nd mate
P8 V5 5 V power
P9 V5 5 V power
P10 Gnd 2nd mate
P11 Reserved The pin corresponding to P11 in the backplane
receptacle connector is also reserved
The corresponding pin to be mated with P11
in the power cable receptacle connector shall
be grounded
P12 Gnd 1st mate
P13 V12 12 V power, pre-charge, 2nd mate *1
P14 V12 12 V power *1
Power
segment
P15 V12 12 V power *1
Power segment key
Notes:
*1 Since applying a single external supply voltage of 5V enables this
drive to operate it is unnecessary to supply +3.3V and +12V power
supplies.