Introduction; About This Document; Acronyms / Definitions; Table 1: Acronyms / Definitions Signal Table Terminology Descriptions - Advantech SOM-5992 Design Manual

1 Introduction

1.1 About This Document

This design guide provides information for designing a custom system Carrier Board for COM Express
Type 7 Module. It includes Signal Descriptions, Routing Guidelines and Trace Length Guidelines. The
main purpose is designing Carrier Board for helping customers fast and easy using the module of
Advantech to be designed.

1.2 Acronyms / Definitions

Table 1 : Acronyms / Definitions Signal Table Terminology Descriptions
Term
I/O 3.3V
I/O 5V
I 3.3V
I 5V
I/O 3V3_SBY
O 3.3V
O 5V
OD
P
S0, S1, S2, S3, S4,
S5
10GBase-KR
10GBase-KX4
ACPI
Description
Bi-directional signal 3.3V tolerant
Bi-directional signal 5V tolerant
Input 3.3V tolerant
Input 5V tolerant
Bi-directional 3.3V tolerant active during Suspend and running state.
Output 3.3V signal level
Output 5V signal level
Open drain output
Power input/output
System states describing the power and activity level
S0 Full power, all devices powered
S1
S2
S3 Suspend to RAM System context stored in RAM; RAM is in standby
S4 Suspend to Disk System context stored on disk
S5 Soft Off Main power rail off, only standby power rail present
10 Gbit internal copper interface. Operates over a single lane and uses the
same physical layer coding (defined in IEEE 802.3 Clause 49) as
10GBASE-LR (Single Mode Fiber 1310 nm ) /ER (Single Mode Fiber 1550
nm) /SR (Multi Mode Fiber 850 nm)
4x 10 Gbit internal copper interface. Operates over four lanes and uses the
same physical layer coding (defined in IEEE 802.3 Clause 48) as
10GBASE-CX4
Advanced Configuration Power Interface – standard to implement power
saving modes in PC-AT systems
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