Datasheet

Technical Reference

2.2.2.2 Add-in Card Connectors

The board has the following add-in card connectors:

• PCI Express Mini Card (rev 1.2 compliant) connector

• PCI Conventional (rev 2.3 compliant) bus connector

Note the following considerations for the PCI Conventional bus connector:

• The PCI Conventional bus connector is bus master capable.

• SMBus signals are routed to the PCI Conventional bus connector. This enables PCI

Conventional bus add-in boards with SMBus support to access sensor data on the

board. The specific SMBus signals are as follows:

⎯ The SMBus clock line is connected to pin A40.

⎯ The SMBus data line is connected to pin A41.

The PCI Conventional bus connector also supports single-slot and dual-slot riser cards

for use of up to two bus master PCI expansion cards. In order to support two PCI bus

master expansion cards, the riser card must support the following PCI signal routing:

• Pin A11: additional 33 MHz PCI clock

• Pin B10: additional PCI request signal (i.e., PREQ#2)

• Pin B14: additional PCI Grant signal (i.e., GNT#2)

2.2.2.3 Power Supply Connectors

The board has the following power supply connectors:

• External Power Supply – the board can be powered with a 12 V external power

supply though a DC connector on the back panel. The rear 12 VDC jack accepts

plugs with an inner diameter (ID) of 2.5 mm and an outer diameter (OD) of 5.5

mm, where the inner contact is 12 V and the shell is GND.

• Internal Power Supply – the board can, alternatively, be powered by an internal

ATX12V 2 x 2 power connector.

Table 25. ATX12V Power Connector

Pin Signal Name Pin Signal Name

1 Ground 2 Ground

3 +12 V 4 +12 V

For information about Refer to

Power supply considerations Section 2.5.1, page 52

 NOTE

Based on power consumption test results, the recommended power rating is 60 W

(12 V/5 A). Configuration specific power requirements can be estimated by using the

test results shown in Table 31 and Table 32. Total power consumption will depend on

the system configuration selected by the integrator. See Section 2.7 for minimum and

maximum load configurations.