Supero SC847BE1C series, User Manual

Page: 80 / 116

C-4
SC847BE1C/2C Chassis Manual
C-7 Front Connector and Pin Deinitions
Backplane
Main Power
4-Pin Connector
Pin# Deinition
1 +12V
2 and 3 Ground
4 +5V
3. Backplane Power Connectors
The 4-pin connectors, designated PWR1 -
PWR6 provide power to the backplane. See the
table on the right for pin deinitions.
1. - 2. Primary and Secondary Expander Chips
The primary and secondary expander chips
allow the backplane to support dual port, cas-
cading, and failover conigurations.
4. - 5. Primary and Secondary SAS Ports
The primary SAS connectors are designated
J49 and J50. The secondary SAS Ports are
designated J51 through J52 and are not pres-
ent on EL1 single port backplanes.
6. - 7. Primary and Secondary UART Con-
nectors
The primary UART connector is designated
PRI-UART and J30. The secondary UART
connector is designated SEC-UART and J24
and is not present on BPN-SAS3-846EL1.
UART connectors are used for manufacturer's
diagnostic purposes only.
8. - 9. SDB Connectors
The Primary SDB connector is designated PRI-
SDB and J31. The secondary SDB connector
is designated SEC-SDB and J29. (Not present
on BPN-SAS3-846EL1 backplanes) These are
debug connectors used for the manufacturer's
diagnostic purposes only.
10. I 2 C Connectors
The I 2 C connector. is designated EXP I2C0
and J48.