Statement of Shuttle Mainboard via the EMI Test
Shuttle mainboards have been via the EMI test in terms of series of regulations: EN55022/
CISPR22/AS/NZS3548 Class B, EN55024 (1998/AS/NZS), EN4252.1 (1994), EN61000, ANSI
C63.4 (1992), CFR47 Part 15 Subpart B, and CNS13438 (1997). The items tested are illus-
trated as follows:
(A) Voltage: AC 110V/60HZ & AC 230V/50HZ
(B) Tested Product Information:
Product Name: PC Mainboard
Status: Sample
Model Name: AB49N/AB49
S/N: N/A
CPU:
External Frequency: 100 MHz
Intel Pentium IV 1.6/1.8/2.0/2.2/2.4 GHz
External Frequency: 133 MHz
Intel Pentium IV 2.26/2.40/2.53/2.66/2.80/3.06 GHz
Mouse Port: one port with 6 pins
Keyboard Port: one port with 6 pins
Parallel Port: one port with 25 pins
Serial Port: one port with 9 pins
USB Port: four ports with 4 pins respectively
LAN Port: one port with 8 pins (10Mbps/100Mbps)(AB49N Only)
Line-In & Line-Out & Mic-In Ports: one port for each
DDR Memory: 256 MB*2
All CPUs have completely been tested, and values offered by the worst EMI combination of
CPU external frequency are listed as follows:
(C) Remedy for the Tested Product & Its EMI Interference:
Remedy: N/A
EMI Interference:
Crystal: 25.00 MHz(X1)/24.576 MHz(X2)/32.768 KHz(X3)/14.318 MHz(X4)
Clock Generator: CLK1
(D) Difference between AB49N and AB49:
To discriminate AB49N from AB49 lies in the extent that chips in AB49N support LAN, and the
combination for testing is based on AB49N.
Test Mode
1
2
3
4
External Frequency
133 MHz
133 MHz
100 MHz
100 MHz
CPU
P4 3.06 GHz
P4 3.06 GHz
P4 2.4 GHz
P4 2.4 GHz
Case Open/Closed
Closed
Open
Closed
Open
Power Supply
ENP-0730(ATX12V)
ENP-0730(ATX12V)
ENP-0730(ATX12V)
ENP-0730(ATX12V)
