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3:  Evaluation Kit 

XPort AR Integration Guide 

24 

PR4 is the group of holes adjacent to the pull-up header, JP4.  Each of the four holes is 
connected to the adjacent pin on JP4.  A separate 1k pull-up resistor is connected to each of 
these holes/pins.  These are available for use as needed in a prototype circuit. 

The four holes grouped as PR5 and the four holes grouped as GND (lower left corner of 
prototyping area) are all directly connected to the signal ground plane of the evaluation 
board.  These eight holes provide good signal ground connections for prototype circuitry. 

The eight holes grouped as 3.3V provide direct connection to the 3.3V power plane of the 
evaluation board.  These eight holes provide good power plane connections for prototype 
circuitry. 

RS-232 Serial Interfaces 

The RS-232 serial interfaces are implemented with transceivers that convert 3.3V CMOS 
levels to RS-232 levels. A null-modem serial cable with 9-pin connectors (F/F) is the only item 
needed to connect to another DTE device such as a PC. 

The table below lists the RS-232 signals.  

Note: 

All XPort AR serial interface signal pins, except 9 and 12, are CPs that can be 

optionally set for functions other than their RS-232 function. 

The jumpers in JP6, JP7, and JP8 determine whether or not the XPort AR pins are connected 
to the RS-232 transceivers.  When using RS-232, the signals used must have their 
associated jumper installed in JP6, JP7, and JP8. 

Table 3-9. RS-232 Signals 

XPort AR 

PC 

Signal 

Pin # 

Jumper 

Direction  DE-9 Pin # 

Connection 

DCDA (CP05) 

JP6, 13-14 

In 

P1-1 

-- 

RXDA 

12 

JP6, 7-8 

In 

P1-2 

TXD 

TXDA 

JP6, 1-2 

Out 

P1-3 

RXD 

DTRA (CP02) 

16 

JP6, 5-5 

Out 

P1-4 

DSR 

GND 

-- 

-- 

P1-5 

GND 

DSRA (CP04) 

JP6, 11-12 

In 

P1-6 

DTR 

RTSA (CP01) 

13 

JP6, 3-4 

Out 

P1-7 

CTS 

CTSA (CP03) 

17 

JP6, 9-10 

In 

P1-8 

RTS 

-- 

-- 

-- 

-- 

P1-9 

-- 

 

 

 

 

 

 

DCDB (CP11) 

19 

JP8, 3-2 

In 

P2-1 

-- 

RXDB (CP07) 

10 

JP7, 7-8 

In 

P2-2 

TXD 

TXDB (CP06) 

JP7, 1-2 

Out 

P2-3 

RXD 

DTRB (CP09) 

JP7, 5-6 

Out 

P2-4 

DSR 

GND 

-- 

-- 

P2-5 

GND 

DSRB (CP11) 

19 

JP8, 1-2 

In 

P2-6 

DTR 

RTSB (CP08) 

JP7, 3-4 

Out 

P2-7 

CTS 

CTSB (CP10) 

20 

JP7, 9-10 

In 

P2-8 

RTS 

-- 

-- 

-- 

-- 

P2-9 

-- 

 

Summary of Contents for XPort AR

Page 1: ...Part Number 900 406 Revision H October 2011 XPort AR Integration Guide...

Page 2: ...he user at his or her own expense will be required to take whatever measures may be required to correct the interference Note This product has been designed to comply with the limits for a Class B dig...

Page 3: ...June 2010 D Minor corrections Update company contact info September 2010 E Minor corrections Updated schematics under heading Recommended PCB Layout May 2011 F Updated figures 2 1 2 6 2 7 and 2 8 Jun...

Page 4: ...____________________________ 11 LEDs ________________________________________________________________ 11 Dimensions ___________________________________________________________ 12 Recommended PCB Layou...

Page 5: ...____________________________________________________________ 25 Board Layout__________________________________________________________ 28 Component Identification _____________________________________...

Page 6: ..._______________ 20 Table 3 2 JP2 Connections ______________________________________________ 20 Table 3 3 JP3 Connections ______________________________________________ 21 Table 3 4 JP4 Connections ___...

Page 7: ...on or the most current version of this document please visit the Lantronix Web site at www lantronix com support documentation Document Description XPort AR Getting Started Provides the steps for gett...

Page 8: ...also contains the following New powerful operating system with additional new features Two full serial ports with all hardware handshaking signals or three serial ports without handshaking signals 13...

Page 9: ...oup of six pins is for PoE The standard signals are 3 3V CMOS logic level but are 5V tolerant These signals are typically connected to internal devices such as a relays sensors or UARTs For prototype...

Page 10: ...r RTSB flow control CP09 6 Programmable I O or DTRB flow control CP10 20 Programmable I O or CTSB flow control CP11 19 Programmable I O or DSRB DCDB flow control CP12 11 I 2 C clock CP13 14 I 2 C data...

Page 11: ...ifferential Ethernet Transmit Data RX In 3 Differential Ethernet Receive Data Magnetics center tap provides signal POE36 RX In 6 Differential Ethernet Receive Data Not Used 4 Terminated Pins 4 and 5 a...

Page 12: ...le 2 4 XPort AR LED Functions Link LED Left Side Activity LED Right Side Color Meaning Color Meaning Off No Link Off No Activity Amber 10 Mbps Amber Half Duplex Green 100 Mbps Green Full Duplex Dimens...

Page 13: ...2 Description and Specifications XPort AR Integration Guide 13 Figure 2 5 Bottom View Figure 2 6 Side View...

Page 14: ...ly 1 square inch of copper attached to the shield tabs The shield tabs are an important source of heat sinking for the device Figure 2 7 PCB Layout Top View XPort Compatibility The XPort AR is designe...

Page 15: ...ng Dimensions Bottom View Product Information Label The product information label contains important information about your specific unit such as its product ID name bar code part number serial number...

Page 16: ...hernet 10Base T or 100Base TX auto sensing Compliance Ethernet Version 2 0 IEEE 802 3 electrical Ethernet II frame type IEEE 802 3af when PoE enabled Protocols Supported ARP UDP IP TCP IP Telnet ICMP...

Page 17: ...to all signals for evaluating advanced features Major Features The major features of the evaluation board include Headers offering All 18 signals of the XPort AR interface Monitoring LEDs to jumper t...

Page 18: ...per to CPs for generating input Ground Turret available for scope probe alligator clip connection to signal ground XPort AR Footprint Accommodates both XPort AR and the original XPort without sockets...

Page 19: ...either case Reset Switch The reset switch grounds the reset pin on the XPort AR The XPort AR reset pin is an input only pin and connects to an 811 type reset IC Internal to the 811 is a 20k pull up an...

Page 20: ...e LED illuminates Test LEDs by using a jumper to any of the JP4 pull up pins Each LED has a unique color to facilitate identifying the LEDs that are on Table 3 2 JP2 Connections JP2 Pin Connects To 1...

Page 21: ...er This header provides access to signal ground These pins can be connected with a jumper wire to any of the JP1 pins to set the signal level to low in cases where the corresponding CP is configured a...

Page 22: ...nections JP7 Pin Connects To JP7 Pin Connects To 1 RS 232 XCVR TXDB Input 2 XPort AR CP06 3 RS 232 XCVR RTSB Input 4 XPort AR CP08 5 RS 232 XCVR DTRB Input 6 XPort AR CP09 7 RS 232 XCVR RXDB Output 8...

Page 23: ...generate switchable high low input signals to XPort AR CPs that are configured for input These are 3 position switches on off and momentary When a switch is in the center position off it allows a pul...

Page 24: ...l modem serial cable with 9 pin connectors F F is the only item needed to connect to another DTE device such as a PC The table below lists the RS 232 signals Note All XPort AR serial interface signal...

Page 25: ...ns 3 and 6 Pin 10 PoE78 Ethernet signals 7 and 8 These two Ethernet pins are connected together inside the XPort AR and exit out of this pin Ground Turret The turret marked GND lower right corner of p...

Page 26: ...3 Evaluation Kit XPort AR Integration Guide 26 Figure 3 3 Evaluation Board Schematic...

Page 27: ...3 Evaluation Kit XPort AR Integration Guide 27 Evaluation Board continued...

Page 28: ...nitor LED Yellow JP2 Signal Monitor LED Header LED9 Power LED Blue JP3 Test Switch Header P1 Port A DE 9 Male Connector JP4 Pull Up Header P2 Port B DE 9 Male Connector JP5 GND Header S1 PoE Socket JP...

Page 29: ...f EN 55022 1998 EN55024 1998 A1 2001 Direct Indirect ESD EN61000 4 2 1995 RF Electromagnetic Field Immunity EN61000 4 3 1996 Electrical Fast Transient Burst Immunity EN61000 4 4 1995 Surge Immunity EN...

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