Backplane Connector Definitions; Figure 25. Bridge Board Layout; Table 18. Backplane Power Connector Pin-Out (J1B1) - Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory Manual

Intel® Server System SR1500AL TPS
5.3.5

Backplane Connector Definitions

The backplanes include several different connectors. This section defines the purpose and pin-
out associated with each.
5.3.5.1 Power Connector (Backplane to Power Supply Harness)
The backplane provides power to the three hard drive bays and the slimline drive bay. An 8-pin
power cable is routed from the power supply and plugs into a 2x4 shrouded plastic PC power
connector on the backplane. The following table shows the power connector pin-out.
5.3.5.2 Bridge Board Interface (Backplane to Server Board)
The backplanes provide a pathway for the control panel, PCIe*, USB, and other miscellaneous
signals from the server board to connector interfaces on the backplane. The server board and
backplane have matching 120-pin connectors which are attached using a PCB called the bridge
board, as shown in the following figure. To assure the bridge board is held in place while the
integrated platform is shipped or installed into the rack, the bridge board is held in place using
metal clips which latch the bridge board to each of its connectors on the backplane and server
board.
Revision 1.4

Table 18. Backplane Power Connector Pin-out (J1B1)

Pin Name
1 Ground
2 Ground
3 +5V
4 +5V

Figure 25. Bridge Board Layout

Intel order number D31981-008
Peripheral and Hard Drive Support
Pin Name
5 +12V
6 +12V
7 5VSB
8 +3.3V
TP02176
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