(No.RA033<Rev.001>)1-21
2.6.5.6
USB interface
NXR-5700 is equipped with a USB device function and supported USB2.0 at full speed.
This circuit consists of IC901 and J800.
IC901 is a MPU IC that contains the USB controller function. J800 is a USB-B connector on the front panel.
This function enables the configuration and firmware updates of repeaters from PC via USB.
Fig.17 Control circuit
MPU
IC901
MPU
IC200
DSP
IC150
SRAM
IC392
FLASH
IC390
SqueluchDAC
IC452
X900
32.768kHz
18.432MHz
From PLL
FLASH
IC391
RTC
IC900
RS-485
Transceivers
IC410
Connector
J860
PHY
IC860
X
X
X
X901
24MHz
X860
25MHz
DDR3-SDRAM
IC791
NAND-FLASH
IC830
NOR-FLASH
IC790
Connector
J800
USB
LAN
SYNC
Connector
J410
SYNC
Connector
J410
SYNC1
SYNC2
URAT
backup
Summary of Contents for NXR-5700
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