User's Manual

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2.2 Block Diagram
Microprocessor
(TI AM3505
@ 600MHz)
RMII
SDRC
UART2
DDR2 SDRAM
128MB – 512MB
Opto-Isolators
GPO (x3)
GPI (x2)
GPIO-OUT
GPIO-IN
Reset
Button
RST_IN
GPIO
GPIO
RST
Serial
1.8V
3.3V
PMIC &
POWER
SUPPLY
RMII
ETH PHY
5V
RTC
NAND Flash
256MB – 1GB
GPMC
POE
Controller
I2C1
I2C
USB Host
XCVR
USB Host Port
USB Host
USB Client Port
HSUSB1
USB0
5Vdc
10/100bT POE/POE+
12 – 48Vdc
10/100bT
LED_CTL
LED
(x4)
GPIO
1.2V
Echo
Cancel
PA
LNA
DSP
(AD BF561)
SDRAM
64MB
FLASH
4MB
MXFE
Modulator
(ADF9010)
RF
Switch
USB Hub
UART3
SERIAL
Factory Test
Serial Access
(test points)
GPIO-OUT
GPIO-IN
Opto-Isolators
24MHz
38.4MHz
32.768
KHz
26MHz
50MHz
50MHz
166MHz
124.8MHz
60MHz
RF @ 902 – 928MHz
8 Port RF
Interface
SAW
BPF
8
Not Accessible on
FX7508
Figure 1 21-199765-01 Block Diagram
3 Hardware Interfaces
3.1 Ethernet Interface
The communication interface on the 21-199765-01 Module is a standard shielded RJ-45
connector that represents the 10/100BaseT interface. This connector also enables powering the
module with POE in accordance with 802.3af/at.
3.2 DC Power Interface
The DC Jack is adjacent to the RJ-45 connector and provides a auxiliary method of powering the
module using a Zebra approved DC Power Adapter (Zebra P/N PWRS-14000-260R)
3.3 RF Antenna Interface
The RF Interface on the 21-199765-01 Module is a custom 8-port MMCX connector (Molex P/N
73358-1170). This connector is used to interface to the RFID antenna system. The characteristic
impedance of the RF antenna interface connector is 50 ohms nominal.