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There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other 
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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Following table shows the specification list of the FAX interface card.

Functional Block

Functional contents

On-board
DC/DC Power Supply

Input: +3.3V
Output: +1.2V

Modem

• USB2.0 (Full-Speed)
• 2M PCM (u-law/A-law)
• G3/Super G3
• V.27ter  V.29   V.17   V.34
• ECM on/off

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Sirius-Lite

Modem

SDRAM

Controller

ROM

Controller

USB Interface

Main Controller

FPGA

USB - Hub

C1K

Host - CPU

SSD

Fax  Image

USB OTG

Controller

NOR FLASH

8MB

SDRAM

32MB

L2SW

TSW

WAN

LAN

LINE card

TDM

TDM

C300

(VoIP DSP)

TDM

TDM

BRI4/PRI

LCOT2

SLC2

FAX Modem Card

Fig1.1 FAX Modem Unit in Main Unit

TDM Interface

Fig1.2 FAX Modem Unit Block Diagram

+1.2V

+3.3V

CONENCT

OR

Sirius Lite

SDRAM

Flash ROM

D+

D-

ABITCLK

ASPCLK

ATXD

ARXD

+3.3V

+1.2V

XTAL

12MHz

XTAL

12MHz

XTAL

24.576MHz

XTAL

24.576MHz

NRST

RINGER

IO15

USBDP

USBDM

DC/DC

HW_FH

HW_CLK

LDHW

LUHW

+3.3V

+3.3V

+3.3V

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Fig1.2 FAX Modem Unit Diagram

+1.2V

+3.3V

CONENCT

OR

Sirius Lite

SDRAM

Flash ROM

D+

D-

ABITCLK

ASPCLK

ATXD

ARXD

+3.3V

+1.2V

XTAL

12MHz

XTAL

12MHz

XTAL

24.576MHz

XTAL

24.576MHz

NRST

RINGER

IO15

USBDP

USBDM

DC/DC

HW_FH

HW_CLK

LDHW

LUHW

+3.3V

+3.3V

+3.3V

CARD ID