Airlink101 Redwing CDMA User manual

Copyright © 1993-2006 AirLink Communications, Inc. All rights reserved.
Redwing CDMA
User Guide
Version 2.31 - January 2007

Redwing CDMA for Sprint - User Guide, version 2.31 ii
Information in this document is subject to change without notice.
©Copyright AirLink Communications, Inc., 1993-2006. All rights reserved.
WARNING
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm
from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
Important Notice
Because of the nature of wireless communications, transmission and reception of data can never be guaranteed.
Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant delays or losses of data
are rare when wireless devices such as the AirLink Communications modem are used in a normal manner with a
well-constructed network, the AirLink modem should not be used in situations where failure to transmit or
receive data could result in damage of any kind to the user or any other party, including but not limited to per-
sonal injury, death, or loss of property. AirLink Communications, Inc., accepts no responsibility for damages of
any kind resulting from delays or errors in data transmitted or received using the AirLink Communications
modem, or for failure of the AirLink Communications modem to transmit or receive such data.
Safety and Hazards
Do not operate the AirLink Communications modem in areas where blasting is in progress, where explosive
atmospheres may be present, near medical equipment, near life support equipment, or any equipment which
may be susceptible to any form of radio interference. In such areas, the AirLink Communications modem MUST
BE POWERED OFF. The AirLink Communications modem can transmit signals that could interfere with this equip-
ment. Do not operate the AirLink Communications modem in any aircraft, whether the aircraft is on the ground
or in flight. In aircraft, the AirLink Communications modem MUST BE POWERED OFF. When operating, the Air-
Link Communications modem can transmit signals that could interfere with various on board systems. The driver
or operator of any vehicle should not operate the AirLink Communications modem while in control of a vehicle.
Doing so will detract from the driver or operator's control and operation of that vehicle. In some states and
provinces, operating such communications devices while in control of a vehicle is an offence.
Limitation of Liability
The information in this manual is subject to change without notice and does not represent a commitment on the
part of AirLink Communications, Inc. AIRLINK COMMUNICATIONS, INC. SPECIFICALLY DISCLAIMS LIABILITY
FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL, GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEM-
PLARY DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS
OR REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY AIRLINK COMMUNICATIONS, INC. PROD-
UCT, EVEN IF AIRLINK COMMUNICATIONS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY.
Warranty Summary
For the full and complete text, refer to the warranty appendix in the modem user guide or to the AirLink website
(http://www.airlink.com) for the full text of the warranty.
Software: Software is warrantied for 90 days to work in substantial conformance to applicable software specifi-
cations. AirLink’s sole obligation is to, at their option, refund the liscense fee or replace the software with other
software.
Hardware: All equipment is warrantied for one year after delivery to conform with AirLink’s specifications and be
free from manufacturing defect. Optional warranty extensions can be purchased for two and four years which
would increase the warranty period to three and five years respectively. If under normal use, the hardware
proves to have any such defect and the Customer notifies AirLink of such defect within the warranty period, Air-
Link, at its option, will either repair or replace the same without charge but only upon written authorization and
in accordance with instructions of AirLink using a Return Material Authorization ("RMA") process (details of the
process are in the full warranty statement).
THIS WARRANTY DOES NOT COVER PRODUCTS THAT DO NOT CONFORM TO SPECIFICATIONS BECAUSE OF
ACCIDENT, ALTERATIONS, FAILURE TO FOLLOW INSTRUCTIONS, USE OUTSIDE THE SCOPE OF ANY OTHER
PROVIDED DOCUMENTATION (E.G., USER GUIDE, INSTALLATION GUIDE, QUICK START GUIDE), MISUSE,
ABUSE, NEGLECT, FIRE, FLOOD OR ACTS OF GOD.

Redwing CDMA for Sprint - User Guide, version 2.31 iii
Contents
Introduction to Redwing CDMA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CDMA Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Establishing an Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Dynamic vs. Static IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Using Your Redwing to Connect to the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Common Uses for the Redwing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Activating the Redwing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Quick Start Guide and Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Activating the Redwing using AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Circuit- Switched Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
INIT State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Configuring Circuit-Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
AT Commands and command string . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Common AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Commands Specific to the Redwing C3110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Conmmands specific to the Redwing C3111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Step by Step Configuration for the Redwing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Information Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Hardware Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Configuration Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Testing the Redwing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Commission the Redwing Modem on Site (C3110). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Commission the Redwing Modem on Site (C3111). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Connecting the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Connecting Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Connecting the Redwing to a computer or other device . . . . . . . . . . . . . . . . . . . . . . . . .16
Redwing Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Modem Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Optional Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Specifications for the Redwing CDMA . . . . . . . . . . . . . . . . . . . . . . . . .20
Physical Characteristics: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Environmental: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Redwing CDMA for Sprint - User Guide, version 2.31 iv
Contents
Power Management: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
IS-95B Circuit-Switched Mode: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Short Message Service (SMS): Send and Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Serial Port Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Direct Serial Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Direct Serial Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using AT Commands with a Terminal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
AT Command Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Information and Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Serial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
CDMA/EVDO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Windows Dial-up Networking (DUN) . . . . . . . . . . . . . . . . . . . . . . . . . .38
Installing the Modem Driver in Microsoft Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Dial-Up Networking (PPP) Configuration for Microsoft Windows . . . . . . . . . . . . . . . . .41
Making a DUN Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Warranty Terms and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Standard Software Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
One Year Standard Equipment Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Optional Two Year Extended Equipment Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Optional Four Year Extended Equipment Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Warranty Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
WARRANTY DISCLAIMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
LIMITATION OF LIABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
General Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Frequently Asked Questions and Technical Support . . . . . . . . . . . . . .52
FAQ Topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Power, Antennas, and Signal Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
The Redwing’s IP Addresses and Local Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Security for the Redwing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Activation (Registering on the Sprint Network) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Prefered Roaming List (PRL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
AirLink Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
AirLink Support Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
AirLink Documentation and Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Contacting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Redwing CDMA for Sprint - User Guide, version 2.31 1
CHAPTER 1 Introduction to Redwing CDMA
FIGURE 1. Redwing front and back
CDMA Overview
Establishing an Internet Connection
The Redwing uses Sprint as an ISP (Internet Service Provider) to connect you to the Internet.
The Redwing's rugged form factor is ideal for industrial and commercial applications that require
real-time communications. The Redwing provides cellular data communications for a variety of
applications, such as public safety, traffic control, traffic metering, and more.
CDMA (Code Division Multiple Access) is the underlying digital radio network technology used
by many cellular providers across the globe and is prevalent in North America. CDMA/1x pro-
vides a digital cellular telephony system and can provide wireless Internet access at speeds
between 60 and 80 kbps, with bursts up to 144 kbps. 1x is a data standard built on CDMA.
1x is highly secure. Originally developed based upon the “spread spectrum” pioneered by the US
Department of Defense, security in 1x is obtained by spreading the digital information contained
in a particular signal of interest over multiple coded paths, over a much greater bandwidth than
the original signal.

Redwing CDMA for Sprint - User Guide, version 2.31 2
Introduction to Redwing CDMA
Steps of a connection:
Dynamic vs. Static IP Addresses
As stated above, when your Redwing registers on Sprint’s network, it receives an IP address. There
are two types of addresses on networks: dynamic and static.
•Dynamic addresses are assigned on a “need to have” basis. Your Redwing might not always
receive the same address each time it connects with Sprint.
•Static addresses are permanently assigned to a particular account and will always be used
whenever your Redwing connects to the Internet. The IP address will not be given to anyone
else.
Most ISPs (cellular included) use dynamic IP addresses rather than static IP addresses since it
allows them to reuse a smaller number of IP addresses for a large number of customers. A
dynamic IP address is suitable for many common Internet uses, such as web browsing, looking up
data on another computer system, or other client functions (such as data only being sent out or only
being received after an initial request).
1. When your Redwing is powered on, it automatically searches for cellular service using
CDMA.
2. Your Redwing establishes a PPP (Point to Point Protocol or “dial” up connection) link to
Sprint’s network, also called registering on the network, and receives an IP address.
3. When your Redwing has received its IP address from Sprint, then it is ready to allow you to
connect to the Internet.
FIGURE 2. Using the Redwing to connect to the Internet
Note: If your account with Sprint includes a dynamic IP address and you need a
static IP, please consult your Sprint Data Sales Representative for more informa-
tion about changing your account for static IP support.
If you need to contact your Redwing, a device connected to the modem, or a host system using the
modem from the Internet, you need to have a known IP (such as one which is static) or domain
name (an IP address which is converted by a DNS server into a word based name).
Internet

Redwing CDMA for Sprint - User Guide, version 2.31 3
Introduction to Redwing CDMA
Common Uses for the Redwing
Caution: If you want to connect remotely to your Redwing using TCP/IP, the IP
address given to your modem by the network cannot be a private or internal IP
address (such as Data Link) unless you are on the same network or inside that net-
work’s firewall (such as with frame relay).
Using Your Redwing to Connect to the Internet
To use your Redwing’s serial port to connect to the Internet from your computer, you need to con-
nect the computer directly to the Redwing’s serial port with a straight-through serial cable and use
Dial-Up Networking (DUN).
The Redwing’s rugged construction and cellular connection make it ideal for use in remote and/or
industrial locations.
The Redwing is designed to work with legacy devices which do not need the advanced features of
ALEOS.
FIGURE 3. Remote Internet Access

Redwing CDMA for Sprint - User Guide, version 2.31 4
CHAPTER 2 Activating the Redwing
Your Redwing needs specific parameters before it can operate on the CDMA network.
Quick Start Guide and Setup Wizard
The preferred way to activate and configure your Redwing to connect to the cellular network is via
the AirLink Setup Wizard for Sprint. The Quick Start Guide will lead you through using the Setup
Wizard.
Select Start, then All Programs, then AirLink Communications. Select Setup Wizard.
FIGURE 1. Setup Wizard
The latest Redwing Setup Wizard and Quick Start guide are on the product CD
included with your modem and are available from the AirLink web site, http://
www.airlink.com/support.
Note: To run the Setup Wizard, you will need the Microsoft .NET framework v.1.1
and Microsoft Windows 98, Microsoft Windows 2000, Microsoft Windows XP, or
later.

Redwing CDMA for Sprint - User Guide, version 2.31 5
Activating the Redwing
Activating the Redwing using AT Commands
An alternate method to configure and activate your Redwing is by using AT commands sent
directly to the modem with a terminal application (refer to the troubleshooting section, page 52).
This method is recommended only in situations where the Setup Wizard is not available and/or
the configuration for the Redwing is unusual.
Caution: While you can configure your Redwing using Wireless Ace or AceNet, it
is not possible to activate the Redwing using either Wireless Ace or AceNet.

Redwing CDMA for Sprint - User Guide, version 2.31 6
CHAPTER 3 Circuit- Switched Configuration
However, for customers who have unintelligent machines who still need to have the modem 'ready'
to behave in a certain way (such as Auto-Answering circuit-switched data calls), there is a feature
in the modem called the INIT STATE.
INIT State
The Auto-INIT command string is comprised of up to 40 characters, the order defining the
sequence of the initialization. The command sets the modem for the desired 'ready' configuration
each time it powers on.
Configuring Circuit-Switch
The Redwing does not have any internal intelligence nor does the Redwing C3110 or C3116
have the ability to SAVE individual settings like a conventional modem (the Redwing C3111 can
save settings internally). Therefore, the best machines for use in circuit-switched mode are ones
that can provide their own INIT or setup strings and/or issue AT commands.
Note: Crcuit-switched configuration requires a voice plan (account) with your car-
rier, not a 1xRTT data plan. 1xRTT features are not compatible with the circuit
switch configuration. Voice plan speeds are generally lower than those of a data
plan. It is generally not easy to switch from one plan to the other.
The INIT STATE is a state where the modem will initialize itself by using a single pre-determined
concatenated Auto-INIT command string. In some models of the Redwing, the Auto-INIT is actu-
ally an AT command itself, called +ATINIT. Since the Auto-INIT takes the shape of traditional
INIT strings, those with experience setting up conventional land-line modems should find this
fairly easy to configure.
To configure the modem for circuit-switch communication, you will need to use AT commands
(page 22). You will need to use direct serial communication to enter the commands for the Red-
wing
Different models of the respond to some of the AT commands in different ways, a command
which is used with one model may not be applicable to another.
The model number of your modem is on the label on the top of the case (example,
Redwing CDMA C3110).

Redwing CDMA for Sprint - User Guide, version 2.31 7
Circuit- Switched Configuration
AT Commands and command string
Common AT Commands
EEcho
QQuiet Mode
&C DCD Control
&D DTR Options
&S DSR Options
S0 Auto-answer mode
S7 Wait for Carrier
S8 Comma Pause Time
S9 Carrier Detect Response Time
+IFC=x,x Enable or Disable Flow control - RTS/CTS (for C3110, you will need to use a comma
replacement command).
$QCVAD Answer as a Data Call for C3110, .
+CICB Answer as a Data Call for C3111, .
Commands Specific to the Redwing C3110
There are two primary commands for setting a modem for Auto-INIT. Both commands must be
entered in this order for the modem to initialize.
AT+ATINITSTATE=1
AT+ATINIT=string,C[,break][,comma]
The command string cannot contain any spaces, commas, the plus (+) symbol, or a semi-colon (;). If an AT
command needed for the string contains a plus or comma (for example, +IFC=0,0), you will need
to designate a break character since you cannot use the standard break of ;for the plus to be read
and a replacement for the comma. The break and comma designations need to be at the end of the
ATINIT command and separated with commas. During the INIT sequence, the modem looks at the
entire command before executing the AT command string. If there are replacement values, it will
perform the appropriate replacement before executing the AT command.
Example: AT+ATINIT=&C1S0=1$QCVAD=4%+IFC=0^0,C,%,^
The “%” will allow the “+” to be used and the “^” will translate to a “,”. The AT command exe-
cuted would be:
Example of executed command: AT&C1S0=1$QCVAD=4+IFC=0,0
Each modem requires a command string that is a combination of AT commands limited to a maximum of 40
characters. The command string will vary depending on the needs of the connected device (for example,
some devices need DTR to be high while others need DTR to be ignored). For a full listing as well as
parameters and defaults, refer the AT Command appendix starting on page 22.

Redwing CDMA for Sprint - User Guide, version 2.31 8
Circuit- Switched Configuration
TABLE 1. Redwing C3110
The Auto-INIT Command for the Red-
wing C3110:
AT+ATINIT=&D0S0=1$QCVAD=4,C,
%,^
Components:
AT
All AT commands must start with “AT”.
+ATINIT=
Sets the initialization string in the
modem.
string
The string is a combination of AT Com-
mands (page 22) limited to a maximum of
40 characters. Examples below.
,C
Stores the command to NVRAM.
[,break]
Optional “BREAK” character to allow
the use of a command with a “+”. In the
example, a “%” is used.
[,comma]
Optional comma replacement character to
allow the use of a command requiring a
comma. In the example, a ^is used.

Redwing CDMA for Sprint - User Guide, version 2.31 9
Circuit- Switched Configuration
Conmmands specific to the Redwing C3111
The Redwing C3111 does not use “+ATINITSTATE” or “+ATINT”.
To configure the Redwing C3111, AT commands can be concatenated to create a string with
“;AT&W” as the last commands to write them into memory.
Some commands, such as “+IFC”, will need to be prefixed with “;AT”.
Step by Step Configuration for the Redwing
The first thing you need to do is determine the model number of your modem. Different model
numbers will have different configurations. Some of the configuration steps for one model will not
work at all with any other model number.
The model number for your modem is on the sticker which is on the top of the modem (example,
Redwing CDMA C3110, or Redwing CDMA C3111, or ). The first letter and number (C3 or ) idi-
cates the communication technology your modem uses. The next number (2) indicates the modem
model (Redwing). The final two numbers (10, or 11, or 16) indicate the internal hardware model.
Information Required
1. Master Subsidy Lock (MSL) - also called the Unlock Code or Activation Code. This should
be provided by Sprint. The incorrect MSL can cause the configuration to fail. This might also
be programmed for you as part of the Setup Wizard activation process.
2. MIN and MDN or MSID - The phone number for your cellular account (also called the MIN).
You may have two phone numbers for your modem, the MIN and MSN or MSID. If you have
two numbers which are different and you only enter one, the configuration will fail. The MIN
and MSN or MSID (if it is different) should be provided by Sprint.
3. Username (SID or NID) and Password - You may also need a user name and password for
your account. The user name for your account may be the same as your MIN. The user name
and password should be provided by Sprint
TABLE 2. Redwing C3111
The Auto-INIT Command for the Red-
wing C3111:
ATS0=1+CICB=0;AT&W
Components:
AT
All AT commands must start with “AT”.
string
The string is a combination of AT Com-
mands (page 22) limited to a maximum of
40 characters. Examples below.
;AT&W
Stores the command to memory.

Redwing CDMA for Sprint - User Guide, version 2.31 10
Circuit- Switched Configuration
Hardware Required
1. A personal computer with a functioning serial port or USB port and a USB to serial converter
configured to work with your computer.
2. A straight through RS232 cable (DB9M-DB9F).
3. A suitable power supply and antenna for the Redwing modem. Without suitable signal strength
the modem will not function. Better than at least -100dBM is required.
Software Utility
The Setup Wizard for Sprint. You can download the Setup Wizard from the AirLink website:
http://www.airlink.com/support/modems/utilities/ (select Redwing and Sprint to download the
correct Setup Wizard). A default installation of this utility is assumed later in these directions.
Configuration Steps
a. Follow the directions in the Quick Start Guide for the Redwing and Sprint to activate (also
called provision) your modem.
b. Complete the Setup Wizard and verify that the account is good using the Setup Wizard test
screen. If your modem fails any of the tests then contact Sprint and troubleshoot the account.
Do not proceed until the account is functioning correctly.
FIGURE 1. Setup Wizard: Test Modem Setup
a. Start HyperTerminal to connect to the modem: Start>All Programs>Accessories>Communi-
cations>HyperTerminal
b. If you prviously made a connection for the Redwing, cancel the Connection Description
window and select File > Open (or the Open icon) and use the AirLink connetion you set up
before. Skip to F.
1. Connect the modem to your computer (or USB to serial device connected to your computer) via
the RS232 cable and apply power to the modem.
2. Using the Setup Wizard, activate the Redwing for your cellular account with Sprint.
3. Using a direct serial connection, connect to the Redwing.

Redwing CDMA for Sprint - User Guide, version 2.31 11
Circuit- Switched Configuration
c. If you haven’t made a conection yet, name the connection AirLink and click OK.
FIGURE 2. HyperTerminal: Connection Name
d. Select COM1 for the Connect Using.
FIGURE 3. HyperTerminal: Comport Setting
e. Change the Bits per Second to 115200 (default), Data Bits to 8, Parity to None, Stop Bits to
1, and Flow Control to Hardware.
FIGURE 4. HyperTerminal: Comport Settings
f. Type AT and press Enter. You should get a reply of “OK” or “0”. .

Redwing CDMA for Sprint - User Guide, version 2.31 12
Circuit- Switched Configuration
FIGURE 5. HyperTerminal: Connected
FIGURE 6. g. To see what you are typing as you type it, you may need to turn on the echo and
verbose mode. Type ATE1V1 and press Enter. HyperTerminal: Connected
This will be the string you use with your device once it is connected to your Redwing. You will
need to consult the User Guide for your equipment to see what connection parameters it specifi-
cally needs. The examples below are generic strings commonly used.
Redwing C3110
Auto-answer data calls, ignoring DTR :
AT+ATINIT=&D0S0=1$QCVAD=4,C
Auto-answer, but assert DTR:
AT+ATINIT=&D2S0=1$QCVAD=4,C
Auto-answer, but assert DTR and do a carrier detect:
AT+ATINIT=&C1&D2S0=1$QCVAD=4,C
Auto-answer, assert DTR, flow-control off, and do a carrier detect:
AT+ATINIT=&C1&D2S0=1$QCVAD=4%+IFC=0^0,C,%,^
Redwing C3111
Auto-answer incoming data calls:
ATS0=1+CICB=0;AT&W
Auto-answer, assert DTR, flow-control off, and do a carrier detect:
AT&C1S0=1+CICB=0;AT&W;AT+IFC=0,0;AT&W
4. Create an AT Command string and test it with the modem.
Caution: Your equipment may have a limitation below 40-characters for the com-
mand string. Be sure you get an “OK” when you test your command string with
the Redwing.

Redwing CDMA for Sprint - User Guide, version 2.31 13
Circuit- Switched Configuration
Testing the Redwing Configuration
Once the modem has been activated and you’ve built the command string it is recommended that
the Redwing modem be tested previous to field installation.
•Dial the Redwing modem telephone number from a land line and verify that the modem auto-
matically answers the call with modem tones.
•This test should be completed with the serial cable disconnected to verify that no signaling is
required by the modem.
Commission the Redwing Modem on Site (C3110)
The following steps represent a guideline and makes assumptions that the modem has been verified
previously in a controlled environment.
1. Install the Redwing modem verifying that all power and antenna cables are correctly secured.
2. Verify that the Redwing modem powers up and the Net light is lit.
3. Connect the Redwing modem to the laptop computer via a straight through RS232 cable or con-
nect the serial cable from the modem to a USB to serial device that has been previously
installed on the laptop.
4. Using a terminal emulation program (HyperTerminal) set up for 9600bps, 8 data bits, no parity
and 1 stop bit issue an AT!RSSI?. This will respond back with a signal strength measurement
represented in dBm. The value must be better than -100dBm for the modem to function and it
is strongly recommended that -90dBm or better be used as a minimum value.
5. Remove the connection to the Laptop PC and connect your equipment to the Redwing Modem.
6. Configure your equipment with the AT command string you created above.
7. Have the actual application call your equipment via the modem telephone number and verify
communications.
Commission the Redwing Modem on Site (C3111)
The following steps represent a guideline and makes assumptions that the modem has been verified
previously in a controlled environment.
1. Install the Redwing modem verifying that all power and antenna cables are correctly secured.
2. Verify that the Redwing modem powers up and the Net light is lit.
3. Connect the Redwing modem to the laptop computer via a straight through RS232 cable or con-
nect the serial cable from the modem to a USB to serial device that has been previously
installed on the laptop.
4. Using a terminal emulation program (HyperTerminal) set up for 9600bps, 8 data bits, no parity
and 1 stop bit issue an AT+CSQ?. This will respond back with a signal strength measurement
5. Diconnect the Redwing from your computer but not from power.
You can use the A/ command to repeat the last AT command.

Redwing CDMA for Sprint - User Guide, version 2.31 14
Circuit- Switched Configuration
represented on a scale from 0-31 and second value separated by a comma. The signal strength
value must be higher than 9 for the modem to function and it is strongly recommended that a
value of 18 or better be used as a minimum value.
5. Remove the connection to the Laptop PC and connect your equipment to the Redwing Modem.
6. Configure your equipment with the AT command string you created above.
7. Have the actual application call your equipment via the modem telephone number and verify
communications.
You can use the A/ command to repeat the last AT command.

Redwing CDMA for Sprint - User Guide, version 2.31 15
CHAPTER 4 Hardware Installation
Your AirLink Redwing should be mounted in a position that allows easy access for the cables so
they are not bent or constricted. The LEDs on the front panel should be visible for ease of opera-
tional verification. You should ensure that there is adequate airflow around the modem but that it is
kept free from direct exposure to the elements (sun, rain, etc.)
An optional accessory for your Redwing is a mounting kit. The bracket is designed to snugly cra-
dle the modem and hold it in place where you need it. See “Mounting Kit” on page 37.
Modem placement with diagrams of the mounting bracket can be found in the
Appendix, “Modem Placement” on page 17.
FIGURE 1. Redwing connecters
Connecting the Antenna
Antennas selected should not exceed a maximum gain of 5 dBi under standard installation config-
uration. In more complex installations (such as those requiring long lengths of cable and/or multi-
ple connections), it’s imperative that the installer follow maximum dBi gain guidelines in
accordance with the FFC’s regulations.
Your AirLink Redwing will work with most Dual-Band PCS cellular antennas with a TNC con-
nector that works in the high and low frequencies of CDMA . Connect the antenna or RF cable
directly to the antenna connector on the back of the Redwing.
Connecting Power

Redwing CDMA for Sprint - User Guide, version 2.31 16
Hardware Installation
Your Redwing can be used with either DC (available in most automobiles) or 110 AC (standard
US wall power) with the appropriate power adapter (available from AirLink).
The power cable positive lead should be connected to the battery or power source positive termi-
nal. The power cable negative lead should be connected to the battery or power source negative ter-
minal. The Redwing has an internal polysilicon circuit breaker that opens at 0.5 to 1.0 amps of
current.
When your Redwing is connected to power and an antenna, there is a specific pattern to the lights
to indicate its operation mode.
Note: When using a DC power source (such as a car battery or solar cell), AirLink
recommends placing a fuse (1-2 Amp) on the line close to the power source to pro-
tect your power source from possible surges due to shorts or other line issues.
Connecting the Redwing to a computer or other device
Your Redwing’s serial port can be connected directly to most computers or other devices using a
standard straight through cable. If you have a DCE device, you will need a null modem or null
modem cable.
Your Redwing can also be connected to a USB to serial device connected to a computer or other
device which does not have an available serial port but does have USB.
Redwing Indicator Lights
FIGURE 2. Redwing indicator lights
Net (network) - Indicates when there is traffic on the network.
Pwr (power) -Indicates the power adapter is connected and there is power getting to the modem.
The Reset button performs the same function as unplugging power from the modem and plugging
it back in. Reset will not alter any saved configuration settings.