ICOP VDX-6300RD, VSX-6100-EVB User Manual

Page 1
VDX-6300RD
DM&P Vortex86DX 800MHz
DIP 68pin CPU Module
with (3x TX/ RX only)/2USB/LAN/2GPIO/CF/PWMx24
256MB DDR2 Onboard
User’s Manual
(Revision 1.1A)
Page 2
Copyright
The information in this manual is subject to change without notice for continuous improvement in the product. All rights are reserved. The manufacturer assumes no responsibility for any inaccuracies that may be contained in this document and makes no commitment to update or to keep current the information contained in this manual.
No part of this manual may be reproduced, copied, translated or transmitted, in whole or in part, in any form or by any means without the prior written permission of the ICOP Technology Inc..
Copyright 2008 ICOP Technology Inc.
Manual No. IUM6100-EVB000-01 Ver.1.0A May, 2008 Manual No. IUM6300D000-01 Ver.1.0A March, 2011 Manual No. IUM6300RD000-01 Ver.1.1A September, 2014
Trademarks Acknowledgment
Vortex86DX is the registered trademark of ICOP Technology Inc.
Other brand names or product names appearing in this document are the properties and registered trademarks of their respective owners. All names mentioned herewith are served for identification purpose only.
Page 3
T a b l e o f C o n t e n t s
T a b l e o f C o n t e n t s ............................................................. iii
C h a p t e r 1 Introduction……………………………………………1
1.1 Packing List ............................................................ 1
1.2 Product Description ................................................ 1
1.3 Specifications ......................................................... 3
1.4 Board Dimension .................................................... 5
C h a p t e r 2 Installation……………………………………………..7
2.1 Board Outline ......................................................... 7
2.2 Connectors & Jumpers Location .................... ........8
2.3 Connectors & Jumpers Summary ......................... 10
2.4 Pin Assignments & Jumper Settings ..................... 12
2.5 System Mapping ................................................... 20
2.6 Watchdog Timer ................................................... 23
2.7 GPIO .................................................................... 24
2.8 SPI flash ............................................................... 25
2.9 PWM .................................................................... 26
C h a p t e r 3 Driver Installation……………………………………27
Appendix ………………………………………………………………..28
A. TCP/IP library for DOS real mode ............................. 28
B. BIOS Default Setting ................................................. 29
C. Console redirection Setting ....................................... 30
D. VSX-6100-EVB Schematic ........................................ 35
Warranty ............................................................................................ 36
Page 4
This page is blank
Page 5
VDX-6300RD Vortex86DX DIP 68pin CPU Module
1
C h a p t e r 1
Introduction
1.1 Packing List
Product Name Package
VDX-6300RD
Embedded Vortex86DX DIP 68 Pin CPU Module
RS232 cable x 3
USB cable x 1
PS/2 Keyboard cable x 1
Product Name Package
VSX-6100-EVB
Embedded Vortex86SX/DX DIP 68pin CPU
Module Evaluation board x 1
Manual & Drivers CD x 1
Note:
All cables will be included only, when you order the whole set of
VDX-6300RD and VSX-6100-EVB.
Page 6
VDX-6300RD Vortex86DX DIP 68pin CPU Module
2
1.2 Product Description
The VDX-6300RD family of low-power x86 embedded controller is designed to meet DIP 68pin
CPU module specification, and integrated with the following features.
800MHz Vortex86DX System-On-Chip 256MB DDR2 system memory 10/100Mbps Ethernet 3 USB 2.0 (host) Up to 3 serial ports 16-bit GPIO x2 2 watchdog timer
PWM 16~24 channels JTAG interface AMI BIOS Onboard 4MB SPI Flash DC IN: +6V~+24V Support extended operating
temperature range of -20°C to +70°C
The VDX-6300RD DIP 68pin controller is designed with backward compatibility in mind, to
provide migration path for projects facing end-of-life challenges with their existing x86 based
controller. The VDX-6300RD family of controller is designed as a plug in replacement, with
backward compatibility to support legacy software to help extend existing product life cycle
without heavy re-engineering.
VDX-6300RD is suitable for broad range of data-acquisition, Industrial automation, Process
control, Automotive controller, AVL, Intelligent Vehicle management devic,Medical device,
Human machine interface, Robotics, machinery control And more…application that required
small footprint, low-power and low-cost hardware with open industry standard such as DIP 68pin
module.
Page 7
VDX-6300RD Vortex86DX DIP 68pin CPU Module
3
1.3 Specifications
Features VSX-6100-EVB (Evaluation board)
Connectors
2.00mm 10-pin header for RS-232 x1
2.54mm 10-pin header for PWM x1
2.54mm 10-pin header for GPIO x3
2.54mm 3-pin header for SERVO x8
2.54mm 34-pin connector for Multi-I/O x1 External USB connector x2
External RJ-45 connector for Ethernet x1 External 9-pin D-Sub male connector for RS-232 x1
Power Requirement
+6V~+24V
@
250mA
Dimension
101mm X 78mm (3.97 x3.07 inches)
76
76g
Operating Temperature
-20oC ~ +70oC
-40°C ~ +85°C (Optional)
Page 8
VDX-6300RD Vortex86DX DIP 68pin CPU Module
4
Features VDX-6300RD
CPU
DM&P SoC CPU Vortex86DX- 800MHz Real Time Clock with Lithium Battery Backup
Cache
L1:16K I-Cache, 16K D-Cache L2:128KB Cache
BIOS
AMI BIOS
System Memory
256 /512MB DDR2 Onboard
Watchdog Timer
Software programmable from 30.5 us to 512 seconds x2 sets(Watchdog 1 fully compatible with M6117D)
I /O Interface
RS-232 port x3 USB port x1 (USB 2.0 version)
Connectors
1.25mm 3-pin Wafer for RS-232 x3
1.25mm 4-pin Wafer for USB x1
1.25mm 4-pin Wafer for KBD x1
1.25mm 6-pin Wafer for JTAG x1 Type I/II Compact Flash slot x1
Flash Disk Support
Onboard 4MB SPI Flash Disk (Driver: A) Type I/II CF Card
Power Requirement
Single Voltage +5V
@
380mA
Dimension
90mm X 46mm (3.54 x1.81 inches)
Weight
30g
Operating Temperature
-20oC ~ +70oC
-40°C ~ +85°C (Optional)
Page 9
VDX-6300RD Vortex86DX DIP 68pin CPU Module
5
1.4 Board Dimension
VSX-6100-EVB (Evaluation board)
Page 10
VDX-6300RD Vortex86DX DIP 68pin CPU Module
6
VDX-6300RD
Page 11
VDX-6300RD Vortex86DX DIP 68pin CPU Module
7
C h a p t e r 2
Installation
2.1 Board Outline
VDX-6300RD
Page 12
VDX-6300RD Vortex86DX DIP 68pin CPU Module
8
2.2 Connectors & Jumpers Location
VSX-6100-EVB (Evaluation board)
Page 13
VDX-6300RD Vortex86DX DIP 68pin CPU Module
9
VDX-6300RD
Page 14
VDX-6300RD Vortex86DX DIP 68pin CPU Module
10
2.3 Connectors & Jumpers Summary
VSX-6100-EVB (Evaluation board)
Summary Table
Nbr Description Type of Connections
Pin
nbrs.
J1 10/100Base-T Ethernet LAN RJ45 Connector 8-pin
J2 GPIO Port 0 / 1 Pin Header, 2.54 ,10x2
20-pin
J3 USB 2 USB connector 6-pin
J4
Timer Counter COM2 Pin Header, 2.54 ,10x2
20-pin
J5 USB 1 USB connector 6-pin
J6 SERVO1 Pin Header, 2.54, 3x1 3-pin J7 RS232 / TTL select (COM1) Pin Header, 2,54,1x2 2-pin J8 SERVO2 Pin Header, 2.54, 3x1 3-pin J9 SERVO3 Pin Header, 2.54, 3x1 3-pin
J10 COM1 Pin Header, 2.0 5x2 10-pin
J11 SERVO4 Pin Header, 2.54, 3x1 3-pin
J12 System Power connector
(DC IN: +6V~+24V)
Terminal Block 5.0,2x1 2-pin
J13 SERVO5 Pin Header, 2.54, 3x1 3-pin
J14 COM1 D-Sub Male 9-pin
J15 SERVO6 Pin Header, 2.54, 3x1 3-pin J16 SERVO7 Pin Header, 2.54, 3x1 3-pin J17 SERVO Power connector Terminal Block 5.0,2x1 2-pin J18 SERVO8 Pin Header, 2.54, 3x1 3-pin J19 IRQ6 select Pin Header, 2,54,1x2 2-pin
U1 DIP-68 Connector Box Header, 2.54 34x2 68-pin
SW1 RESET SWITCH
SP1 BUZZER
Page 15
VDX-6300RD Vortex86DX DIP 68pin CPU Module
11
VDX-6300RD
Summary Table
Nbr Description Type of Connections
Pin
nbrs.
J2 USB Wafer, 1.25 , 5x1 5-pin J3 PS/2 Keyboard Wafer, 1.25 , 5x1 4-pin J4 JTAG Wafer, 1.25 , 6x1 6-pin J5 COM3 Wafer, 1.25 , 3x1 3-pin J6 COM4 Wafer, 1.25 , 3x1 3-pin
J8 Console Redirection Slide Switch 3-pin
J9 COM9 Wafer, 1.25 , 3x1 3-pin
U5 DIP-68 Connector Pin Header, 2.54 34x2 68-pin
CF1 Compact Flash Type I/II CF Connector 50-pin
PWR-LED Power Active LED (Red) LED-SMD
IDE- LED IDE Active LED (Green ) LED-SMD
LED 3 LAN Link/Active LED (Green)
LED-SMD
LED 4 LAN Duplex LED ( Yellow ) LED-SMD
Page 16
VDX-6300RD Vortex86DX DIP 68pin CPU Module
12
2.4 Pin Assignments & Jumper Settings
A: Pin Assignments & Jumper Settings of VSX-6100-EVB
J2: GPIO (Port 0 / Port 1)
J4: Timer Counter (COM2)
Pin # Signal Name Pin # Signal Name
1 GND 2 VCC 3 GP00 4 GP10 5 GP01 6 GP11 7 GP02 8 GP12 9 GP03 10
GP13
11 GP04 12
GP14
13 GP05 14
GP15
15 GP06 16
GP16
17 GP07 18
GP17
19 VCC 20
GND
Pin # Signal Name Pin # Signal Name
1 GND 2 VCC 3 OUT0 4 GP30 5 OUT1 6 GP31 7 OUT2 8 GP32 9 CLK0 10
GP33
11 CLK1 12
GP34
13 CLK2 14
GP35
15 GATE0 16
GP36
17 GATE1 18
GP37
19 GATE2 20
GND
Page 17
VDX-6300RD Vortex86DX DIP 68pin CPU Module
13
J6: SERVO1
Pin # Signal Name
1 GND
2 VDD
3 P20
J7:RS232 / TTL select (COM1)
Pin # Signal Name
OPEN COM1 RS232
CLOSE COM1 TTL / Port4
J8: SERVO2
Pin # Signal Name
1 GND
2 VDD
3 P21
J9: SERVO3
Pin # Signal Name
1 GND
2 VDD
3 P22
Page 18
VDX-6300RD Vortex86DX DIP 68pin CPU Module
14
J10: COM 1
Pin #
Signal
Name
Pin #
Signal
Name
1 DCD1
2 RXD1
3 TXD1
4 DTR1 5 GND 6 DSR1 7 RTS1
8 CTS1 9 RI1 10 GND
11 GND
J11: SERVO4
Pin # Signal Name
1 GND
2 VDD
3 P23
J12: System Power Connector (Terminal Block 5.0mm)
Pin # Signal Name
1 DC IN :
+
6V~+24V
2 GND
J13: SERVO5
Pin # Signal Name
1 GND
2 VDD
3 P24
J15: SERVO6
Pin # Signal Name
1 GND
2 VDD
3 P25
Page 19
VDX-6300RD Vortex86DX DIP 68pin CPU Module
15
J16: SERVO7
Pin # Signal Name
1 GND
2 VDD
3 P26
J17: SERVO Power Connector (Terminal Block 5.0mm)
Pin # Signal Name
1 VDD
2 GND
J18: SERVO8
Pin # Signal Name
1 GND
2 VDD
3 P27
J19: IRQ6 selection
Pin # Signal Name
1 GND
2 IRQ6
Page 20
VDX-6300RD Vortex86DX DIP 68pin CPU Module
16
U1: DIP-68 Connector – 68pin
Pin # Signal Name Pin # Signal Name
1 GND
35
GND
2 Reset
36
TXDEN2
3 GP00
/PWM0
37
CTS2
\
4 GP01
/PWM1
38 DSR2\
5 GP02
/PWM2
39
DTR
2\
6 GP03
/PWM3
40
RXD2
\
7 GP04
/PWM4
41 RI2
8 GP05
/PWM5
42
RTS2
9 GP06
/PWM6
43
TXD2
10 GP07
/PWM7
44
DCD2
\
11 SPICS/ GP30
45
GND
12 SPICLIK
/ GP31
46
GP23
/PWM19
13 SPIDO
/ GP32
47
GP24
/PWM20
14 SPIDI
/ GP33
48
GP25
/PWM21
15 GP34
49
GP26
/PWM22
16 GP35
50
GP27
/PWM23
17 GP3
6 51 CTS1 / GP47
18 GP3
7 52 DSR1 / GP46
19 SPEAKER
53
DTR1 / GP45
20 GP20
/PWM16
54
RXD1 / GP44
21 GP2
1
/PWM17
55
RI1 / GP43
22 GP2
2
/PWM18
56
RTS1 / GP42
23 VBATT
57
TXD1 / GP4
1
24 VCC
58
DCD1 / GP40
25 GP10
/PWM8
59
GND
26 GP11
/PWM9
60
LUSBD0
-
27 GP12
/PWM10
61
LUSBD0+
28 GP13
/PWM11
62
LUSBD1
-
29 GP14
/PWM12
63
LUSBD1+
30 GP15
/PWM13
64
LAN
-RX-
31
GP16
/PWM14
65
LAN
-
RX+
32 GP17
/PWM15
66
LAN
-TX-
33 SYSCLK
67
LAN
-
TX+
34 IRQ6
68
VCC
Note:
1. Multi-function pins of U1 are controlled by BIOS setting.
2. If you Enable 4M SPI flash Disk in BIOS setting, you cannot use GP30~GP33 Pins.
Page 21
VDX-6300RD Vortex86DX DIP 68pin CPU Module
17
B: Pin Assignments & Jumper Settings of VDX-6300RD
J2: USB
Pin # Signal Name Pin # Signal Name
1 VCC
2
LUSBD
0-
3 LUSBD
0+ 4
GND
5 GND
J3: PS/2 Keyboard
Pin # Signal Name Pin # Signal Name
1 KBCLK
2
KBDAT
3 GND 4
VCC
J4: JTAG
Pin # Signal Name Pin # Signal Name
1 VCC 2 GND 3 TCK 4 TDO 5 TDI 6 TMS
Page 22
VDX-6300RD Vortex86DX DIP 68pin CPU Module
18
J5: COM3
Pin # Signal Name Pin # Signal Name
1 TXD3 2 RXD3 3 GND
J6: COM4
Pin # Signal Name Pin # Signal Name
1 TXD4 2 RXD4 3 GND
J7: COM9
Pin # Signal Name Pin # Signal Name
1 TXD9 2 RXD9 3 GND
J8: Slide Switch (Console Redirection)
Pin # Signal Name Pin # Signal Name
1 SPCIS 2 GND 3 NC
Page 23
VDX-6300RD Vortex86DX DIP 68pin CPU Module
19
U5: DIP-68 Connector – 68pin
Pin #
Signal Name Pin # Signal Name
1 GND
35
GND
2 PWRGND
36
TXDEN2
3 GP00
/PWM0
37 CTS2
\
4 GP01
/PWM1
38 DSR2\
5 GP02
/PWM2
39
DTR
2\
6 GP03
/PWM3
40
RXD2
\
7 GP04
/PWM4
41 RI2
8 GP05
/PWM5
42
RTS2
9 GP06
/PWM6
43
TXD2
10 GP07
/PWM7
44
DCD2
\
11 SPICS/
G
P30
45
GND
12 SPICLIK
/ GP31
46
GP23
/PWM19
13 SPIDO
/ G
P32
47
GP24
/PWM20
14 SPIDI
/ GP33
48 GP25
/PWM21
15 GP34
49
GP26
/PWM22
16 GP35
50
GP27
/PWM23
17 GP3
6 51 CTS1 /
G
P47
18 GP3
7 52 DSR1 /
G
P46
19 SPEAKER
53
DTR1 /
G
P45
20 GP20
/PWM16
54
RXD1 /
G
P44
21 GP2
1
/PWM17
55
RI1 /
G
P43
22 GP2
2
/PWM18
56
RTS1 /
G
P42
23 VBATT
57
TXD1 /
G
P41
24 VCC
58
DCD1 /
G
P40
25 GP10
/PWM8
59
GND
26 GP11
/PWM9
60
LUSBD0
-
27 GP12
/PWM10
61
LUSBD0+
28 GP13
/PWM11
62
LUSBD1
-
29 GP14
/PWM12
63
LUSBD1+
30 GP15
/PWM13
64
LAN
-RX-
31
GP16
/PWM14
65
LAN
-
RX+
32 GP17
/PW
M15 66
LAN
-TX-
33 SYSCLK
67
LAN
-
TX+
34 IRQ
6 68 VCC
Note:
1. Multi-function pins of U1 are controlled by BIOS setting.
2. If you Enable 4M SPI flash Disk in BIOS setting, you cannot use GP30~GP33 Pins.
Page 24
VDX-6300RD Vortex86DX DIP 68pin CPU Module
20
2.5
System Mapping
Page 25
VDX-6300RD Vortex86DX DIP 68pin CPU Module
21
Page 26
VDX-6300RD Vortex86DX DIP 68pin CPU Module
22
Page 27
VDX-6300RD Vortex86DX DIP 68pin CPU Module
23
2.6 Watchdog Timer
There are two watchdog timers in Vortex86SX/DX CPU. One is compatible with M6117D
watchdog timer and the other is new. The M6117D compatible watchdog timer is called WDT0
and new one is called WDT1.
We also provide DOS, Linux and WinCE example for your reference. For more technical support,
please visit: http://www.dmp.com.tw/tech or download the PDF file:
http://www.dmp.com.tw/tech/vortex86dx/
Page 28
VDX-6300RD Vortex86DX DIP 68pin CPU Module
24
2.7 GPIO (General Purpose Input / Output)
40 GPIO pins are provided by the Vortex86SX/DX for general usage in the system. All GPIO pins
are independent and can be configured as inputs or outputs, with or without pull-up/pull-down
resistors.
We also offer DOS, Linux and WinCE example for your reference. For more technical support,
please visit: http://www.dmp.com.tw/tech or download the PDF file:
http://www.dmp.com.tw/tech/vortex86dx/
Page 29
VDX-6300RD Vortex86DX DIP 68pin CPU Module
25
2.8 SPI flash (Serial Peripheral Interface)
As SPI Flash (Serial Peripheral Interface) offers many benefits including: reduced controller pin
count, smaller and simpler PCBs, reduced switching noise, less power consumption, and lower
system cost
Many of users may consider using a formatted SPI flash to boot for the system or emulate SPI
flash as Floppy (A: Driver or B: Driver). Then you must know how to set for this condition in
CMOS Setup and boot up under DOS 6.22, X-DOS, DR-DOS and Free DOS.
For more technical support, please visit: http://www.dmp.com.tw/tech or download the PDF file:
http://www.dmp.com.tw/tech/vortex86dx/
Page 30
VDX-6300RD Vortex86DX DIP 68pin CPU Module
26
2.9 PWM (Pulse-width modulation)
Pulse-width modulation (PWM) of a signal or power source involves the modulation of its duty
cycle, to either convey information over a communications channel or control the amount of
power sent to a load.
The popular applications of pulse width modulation are in speed control of electric motors,
volume control of Class D audio amplifiers or brightness control of light sources and many other
power electronics applications.
The Vortex86DX SoC integrated 32 channels of PWM interface enabling the Automation, robotic
industry to a New Age x86 SoC platform and we also offer the sample code of PWM which will
guide the engineer to control the PWM functionality smoothly.
For more inquire of this sample code that please contact our sales team or mail to:
info@icop.com.tw
Page 31
VDX-6300RD Vortex86DX DIP 68pin CPU Module
27
C h a p t e r 3
Driver Installation
LAN
The Vortex86DX processor also integrated 10/100Mbps Ethernet controller that supports both 10/100BASE-T and allows direct connection to your 10/100Mbps Ethernet based Local Area Network for full interaction with local servers, wide area networks such as the Internet. I/O and IRQ settings can be done by software with the supplied utility software, or it can be set for Plug and Play compatibility. The controller supports: Half / Full-Duplex Ethernet function to double channel bandwidth, auto media detection.
Operating system support
The DX-6300RD DIP 68pin CPU module provides the VGA and LAN drivers for DOS 6.22 Windows CE 5.0, CE 6.0, Windows 98, Windows XP Professional, Windows Embedded standard (XPE) and Windows 2000.
Please get the drivers from the Driver CD which attached with the standard packing of VDX-6300RD CPU module or please get it from DMP official website:
http://www.dmp.com.tw/tech/vortex86dx/
VDX-6300RD also supports most of the popular Linux distributions, for more detail information, please visit DMP official website: http://www.dmp.com.tw/tech/vortex86dx/ .
Page 32
VDX-6300RD Vortex86DX DIP 68pin CPU Module
28
Appendix
A. TCP/IP library for DOS real mode
DSock is a TCP/IP library for DOS real mode, which is used by RSIP. It provides simple C functions for programmer to write Internet applications. ICOP also provide Internet examples using DSock: BOOTP/DHCP, FTP server, SMTP client/server, HTTP server, TELNET server, Talk client/server, etc.
DSock provides a lot of example source code. Programmer can add Internet functions to their project easily and save development time. With a utility "MakeROM”, programmer also can make a ROM image to fit their application, those examples can be seen in the following Application systems: Mity-Mite Serial Server, Web Camera Tiny Server and RSIP Serial Server.
DSock is free for All ICOP products using M6117D/Vortex86/Vortex86SX CPU and ICOP also provide the business version of DSock for those customers who are using other x86 CPUs. If you would like to use DSock or business version of DSock, Please mail to info@icop.com.tw or contact your regional sales.
Please download the trial DSock software and Utilities from our website:
http://www.dmp.com.tw/tech/dmp-lib/dsock/
Page 33
VDX-6300RD Vortex86DX DIP 68pin CPU Module
29
B. BIOS Default setting
If the system cannot be booted after BIOS changes are made, Please follow below procedures in
order to restore the CMOS as default setting.
Press “End” Key, when the power on
Press <Del> to enter the AMI BIOS setup Press “F9” to Load Optimized Defaults Press “F10” to Save configuration changes and exit setup
Page 34
VDX-6300RD Vortex86DX DIP 68pin CPU Module
30
C. Console Redirection setting
Hardware requirement:
1. VDX-6300RD & VSX-6100-EVB (Evaluation board)
2. Any PC with COM port, which installed Windows XP ( or other Windows OS) with Hyper
Terminal
3. A D-Sub 9 pin Female to Female Cable.
Enable Console Redirection by hardware switch of VDX-6300RD.
1. Enable “Console Redirection” by hardware switch (Figure 1).
2. Make sure J7 as “CLOSE” (Figure 2).
3. Use A D-Sub 9 pin Female to Female Cable to connect to COM1 and your PC’s Serial
Port.
Page 35
VDX-6300RD Vortex86DX DIP 68pin CPU Module
31
Page 36
VDX-6300RD Vortex86DX DIP 68pin CPU Module
32
Page 37
VDX-6300RD Vortex86DX DIP 68pin CPU Module
33
Page 38
VDX-6300RD Vortex86DX DIP 68pin CPU Module
34
Page 39
VDX-6300RD Vortex86DX DIP 68pin CPU Module
35
D. VSX-6100-EVB (Evaluation board) Schematic
Schematic information can help baseboard designer to optimize exactly how each of these
functions implements physically. Designer can place connectors precisely where needed for the
application on a baseboard designed to optimally fit a system’s packaging.
Please contact or e-mail our regional sales to get VSX-6100-EVB (Evaluation board) Schematic.
Page 40
VDX-6300RD Vortex86DX DIP 68pin CPU Module
36
Warranty
This product is warranted to be in good working order for a period of one year from the date of purchase. Should this product fail to be in good working order at any time during this period, we will, at our option, replace or repair it at no additional charge except as set forth in the following terms. This warranty does not apply to products damaged by misuse, modifications, accident or disaster. Vendor assumes no liability for any damages, lost profits, lost savings or any other incidental or consequential damage resulting from the use, misuse of, originality to use this product. Vendor will not be liable for any claim made by any other related party. Return authorization must be obtained from the vendor before returned merchandise will be accepted. Authorization can be obtained by calling or faxing the vendor and requesting a Return Merchandise Authorization (RMA) number. Returned goods should always be accompanied by a clear problem description.
Loading...