This guide describes how to connect the EVDO versions of the 3G wireless Enhanced High-Speed WAN
Interface Cards (EHWICs) to your network.
• 3G Wireless WAN EHWIC Overview, page 1
• EHWIC-3G-EVDO, page 2
• Default Antenna and Antenna Extension, page 5
• Prerequisites, page 6(
• Restrictions, page 6
• Connecting an Antenna to EHWIC-3G-EVDO, page 6
• Related Documents, page 13
• Obtaining Documentation, Obtaining Support, and Security Guidelines, page 13
3G Wireless WAN EHWIC Overview
The EHWIC-3G-EVDO-x card is a multiband, multiservice WAN card. Its primary application is WAN
connectivity as a backup datalink for critical data applications and as a primary WAN connection.
The EHWIC-3G-EVDO-x card supports the ISR G2 platforms (the Cisco 1900 series, the Cisco 2900
series and the Cisco 3900 series).
The EHWIC-3G-EVDO-x card houses one cellular modem for connection to a wireless WAN.
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EHWIC-3G-EVDO
EHWIC-3G-EVDO
The EHWIC-3G-EVDO cards support multiple bands and services:
• 800/1900 MHz for 1xRTT
• 800/1900 MHz for 1xEVDO Revision 0 and Revision A
• Standalone GPS
• Short Message Service (SMS)
EHWIC-3G-EVDO-x is the Cisco part number for which the interface card is configured and x is a
variable representing carrier-specific versions.
The EHWIC-3G-EVDO versions currently available are:
• EHWIC-3G-EVDO-B (BSNL)
• EHWIC-3G-EVDO-S (Sprint)
• EHWIC-3G-EVDO-V (Verizon)
Additional carrier-specific versions may also be available. See the onboard Product ID (PID) sticker to
differentiate between released versions.
The EHWIC-3G-EVDO cards support diversity mode (dual antenna mode) in the antennas. Types of
antennas include swivel-mounted dipole with extended base and ceiling-mounted antennas. The
diversity mode requires two antennas located together and spaced a minimum of 7.5 inches (19 cm) for
better RF reception.
Connecting Cisco EHWIC-3G-EVDO-x to the Network
Figure 1 shows the front panel view of EHWIC-3G-EVDO.
Figure 1EHWIC-3G-EVDO Front Panel
1
EHWIC3G-EVDO
DIV
GPS
WWAN
RSSI
2351
MAIN
Diag Port
EVDO
GPS
249595
4444
1Mounting Screws4LEDs
2Diagnostic Port5Diversity/GPS Antenna Connector
3Main Antenna Connector
NoteTo use the GPS feature, connect a GPS antenna to the Diversity/GPS Antenna Connector. To use the
Diversity feature, connect a Diversity antenna to the Diversity/GPS Antenna Connector. You cannot use
the same antenna for both features.
Connecting Cisco EHWIC-3G-EVDO-x to the Network
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Connecting Cisco EHWIC-3G-EVDO-x to the Network
Table 1 describes the LED functions of the EHWIC-3G-EVDO cards.
Table 1EHWIC-3G-EVDO LED Description
LEDDescription
WWAN LED
Modem status and
data transmission
RSSI LED
Received Signal
Strength Indicator
EVDO LED
3G-EVDO Service
Indicator
GPS LED
GPS Acquisition
EHWIC-3G-EVDO
Off: EHWIC in reset mode or not powered.
Slow Green Blink: Searching for service.
Solid Green: Active service; no traffic detected.
Fast Green Blink: Active service. Detected traffic is proportional to blink rate.
Off: Low RSSI (under -100 dBm).
Slow Green Blink: Low or medium RSSI (-99 to -90 dBm).
Fast Green Blink: Medium RSSI (-89 to -70 dBm).
Solid Green: High RSSI (-69 dBm or higher).
Solid Yellow: No service or no RSSI detected.
Off: 1xRTT Service
Green Blink: 1xEVDO Rev 0 Service
Solid Green: 1xEVDO Rev A Service
Off: Disabled or searching for satellite signal.
Solid Green: GPS location obtained.
Figure 2 shows the top view of EHWIC-3G-EVDO.
Figure 2Top View of EHWIC-3G-EVDO
DIV
GPS
EHWIC3G-EVDO
WWAN
RSSI
Diag Port
MAIN
EVDO
GPS
249599
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EHWIC-3G-EVDO
Figure 3 shows the bottom view of EHWIC-3G-EVDO.
Figure 3Bottom View of EHWIC-3G-EVDO
GPS
EVDO
MAIN
Diag Port
RSSI
WWAN
3G-EVDO
EHWIC-
GPS
DIV
Connecting Cisco EHWIC-3G-EVDO-x to the Network
249600
Connecting Cisco EHWIC-3G-EVDO-x to the Network
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Connecting Cisco EHWIC-3G-EVDO-x to the Network
Default Antenna and Antenna Extension
EHWIC-3G-EVDO cards ship with the default antenna (3G-ANTM1919D) and the default antenna
extension, a base with a 10-foot cable (3G-AE010-R):
• Cisco Multiband Swivel Mount Dipole Antenna (3G-ANTM1919D) antenna
• Cisco Single-Port Antenna Stand for Multiband TNC Male-Terminated Portable Antenna
(3G-AE010-R) antenna extension
NoteThe 3G-AE010-R antenna extension is the same as 3G-AE015-R except for the length of the
antenna cable. The 3G-AE015-R antenna extension comes with a 15-foot cable.
Connect the default antenna to the main antenna connector on the EHWIC card. If you need to move the
antenna to a better location, connect the antenna to the extension and then connect the extension’s cable
to the main antenna connector on the card.
Figure 2 shows the Cisco 3G-ANTM-1919D multiband swivel-mount dipole antenna connected to the
Cisco 3G-AE010-R antenna extension.
Default Antenna and Antenna Extension
Figure 4Cisco 3G-ANTM1919D Antenna Connected to the 3G-AE010-R Antenna Extension
1
2
1Cisco 3G-ANTM-1919D antenna.2Cisco 3G-AE010-R antenna extension base
245905
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Prerequisites
Prerequisites
Before you connect, make sure you have done the following:
• Make sure you have subscribed to an appropriate CDMA service plan with your wireless service
• Choose an antenna that best suits your needs. See the “Connecting an Antenna to
• Although not required, you can use two antennas to take advantage of the diversity antenna mode
• To connect a diversity GPS antenna to the diversity antenna connector on the card, you need to make
Connecting Cisco EHWIC-3G-EVDO-x to the Network
provider.
EHWIC-3G-EVDO” section on page 6.
for the best RF performance.
NoteTo use the GPS feature, connect a GPS antenna to the Diversity/GPS Antenna Connector. To
use the Diversity feature, connect a Diversity antenna to the Diversity/GPS Antenna
Connector. You cannot use the same antenna for both features.
a separate order for the antenna from Cisco.
• Contact your carrier for information on network coverage, signal strength, choosing a suitable
antenna, and antenna placement.
NoteThe diagnostics port is to be used as an advanced diagnostics tool. Do not use this port for
normal operations.
Restrictions
Limitations of 3G wireless EHWIC cards include the following:
• The 3G wireless EHWIC card must be installed in an EHWIC slot. To determine which slots on your
platform support HWICs, see the Cisco Interface Cards for Cisco Access Routers guide:
• Faceplate-Mounted and Ceiling-Mounted Antennas and Cabling, page 12
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Connecting an Antenna to EHWIC-3G-EVDO
Wireless Access Devices Safety Guidelines and Warnings
The following are guidelines for wireless access devices:
• Do not touch or move antenna(s) while the unit is transmitting or receiving.
• Do not hold any component containing a radio so that the antenna is very close to or touching any
exposed parts of the body, especially the face or eyes, while transmitting.
• The use of wireless devices in hazardous locations is limited to the constraints posed by the local
codes, the national codes, and the safety directors of such environments.
Warning
Warning
Warning
Warning
Warning
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.
Statement 12
When handling the EHWICs and antennas, wear grounding wrist straps to avoid ESD damage to the
card. Do not directly touch the backplane with your hand or any metal tool, or you could shock
yourself.
Statement 94
Do not operate your wireless network device near unshielded blasting caps or in an explosive
environment unless the device has been modified to be especially qualified for such use.
Statement 245B
In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a
minimum of 7.9 inches (20 cm) or more from the body of all persons.
This equipment must be connected to an indoor antenna only.
Statement 332
Statement 373
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Warning
Warning
Read the installation instructions before connecting the system to the power source.
Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
Statement 1004
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Connecting an Antenna to EHWIC-3G-EVDO
Prerequisites for Connecting Antennas
This section contains information about connecting the antennas.
NoteBefore you connect the antennas, install the 3G wireless EHWIC in the router. For more information,
see the Installing Cisco Interface Cards in Cisco Access Routers guide:
In addition to antenna orientation, installation location with respect to other wireless equipment and
other RF noise sources, such as telecom and datacom equipment, plays a significant role in determining
overall network performance.
Because antennas transmit and receive radio signals, their performance can be adversely affected by the
surrounding environment, including distance between the EHWIC antenna and cellular base station,
physical obstructions, or radio frequency (RF) interference.
Follow these guidelines to ensure the best possible performance:
• Wherever possible, mount the 3G wireless EHWIC antenna away from physical obstructions.
Barriers along the line of sight between the EHWIC antenna and cellular base station will degrade
the wireless radio signals. The 3G wireless HWICs and antennas can be installed above floor level
in office environments or near the ceiling for better performance because most obstructions tend to
be near floor level.
Connecting Cisco EHWIC-3G-EVDO-x to the Network
• The density of the materials used in a building’s construction determines the number of walls the
signal must pass through and still maintain adequate coverage. Consider the following before
choosing the location to install your antenna:
–
Paper and vinyl walls have very little effect on signal penetration.
–
Solid and precast concrete walls limit signal penetration to one or two walls without signal
degradation.
–
Concrete and wood block walls limit signal penetration to three or four walls.
–
A signal can penetrate five or six walls constructed of drywall or wood.
–
A thick metal wall or a wire-mesh stucco wall causes signals to reflect back and causes poor
penetration.
• Avoid mounting the antenna next to a column or vertical support that could create a shadow zone
and reduce the coverage area.
• Keep the antenna away from reflective metal objects such as heating and air-conditioning ducts,
large ceiling trusses, building superstructures, and major power cabling runs. If necessary, use an
extension cable to relocate the antenna away from these obstructions.
CautionInstall the EHWIC card and any antennas away from appliances that share the same frequency bands.
Microwave ovens, cordless telephones, and security monitors can temporarily interfere with wireless
performance.
CautionWe recommend you avoid installing wireless antennas in or near rack-mounted installations that include
networking equipment and computer servers whose radiated noise emissions can severely degrade radio
performance.
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NoteIf the desired installation site has a marginally acceptable level of radiated noise emissions, consider
using a remotely-mounted antenna, such as a wall-mounted or ceiling-mounted antenna, for better radio
performance and coverage.
Supported Cisco Antennas and Cables
Table 2 lists the Cisco antennas that are supported for use on 3G wireless WAN EHWIC cards.
.
Table 2Cisco Antennas Supported on the 3G Wireless EHWIC Cards
Maximum Gain and
Cisco Part NumberAntenna Type
3G-ANTM1916-CMHigh-gain
ceiling-mount
omnidirectional
3G-ANTM1919DDipole
omnidirectional
3G-AE015-R
Extension base0.8–6.0 GHzThis antenna extension is a base with a 15-foot cable
(Antenna Extension)
3G-AE010-R
Extension Base0.8–6.0 GHzThis is the default antenna extension. This antenna
If you are using Cisco swivel-mounted dipole antennas, follow these steps:
Step 1Attach an antenna to each TNC antenna connector on the front of the EHWIC card and tighten it
hand-tight.
Step 2Orient the antennas, depending on how you intend to mount the router in which the card is installed.
• If the router is on a table or desk, orient the antennas to the left and right sides so that they are at a
90-degree angle to each other. (See Figure 5.)
• If the router is on a vertical surface, such as a wall, orient the antennas up and at a 90-degree angle
to each other.
• If the router is on a ceiling, orient the antennas down and at a 90-degree angle to each other.
NoteAlthough it is not absolutely necessary, for best RF performance, do not attach the dipole antenna
directly to the face-plate of the card. Use the antenna extension cable and antenna base recommended
for the product.
Connecting Cisco EHWIC-3G-EVDO-x to the Network
Faceplate-Mounted and Ceiling-Mounted Antennas and Cabling
Depending on the wireless environment, wall-mounted or ceiling-mounted antennas may be preferred
for optimum radio coverage. If the length of the coaxial antenna cable is insufficient to cover the distance
between the EHWIC card and the location of the installed antenna, you can use ultra-low-loss TNC
extension cables between the EHWIC card and the antenna cable.
RF energy is carried between the antennas and the radio equipment through a coaxial cable. An antenna
cable introduces signal loss in the antenna system for both the transmitter and the receiver.
Although the cable run can be 100 feet (30 m) or more from the EHWIC card to antenna locations, the
longer the cable run, the greater the signal loss. To reduce signal loss, minimize the cable length and use
only ultra-low-loss antenna cables to connect radio devices to antennas.
To connect faceplate-mounted or ceiling-mounted antennas, follow the installation instructions for your
antenna:
• For more information about connecting the 3G-ANTM1919D antenna to EHWIC cards, see the
Cisco Multiband Swivel Mount Dipole Antenna (3G-ANTM1919D) document.
• For more information about connecting the 3G-ANT1916-CM antenna to EHWIC cards, see the
Cisco Multiband Omnidirectional Ceiling Mount Antenna (3G-ANTM1916-CM) document.
• For more information about connecting the 3G-AE015-R antenna extension to EHWIC cards, see
the Cisco Extended Antenna Base (3G-AE015-R) document.
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Related Documents
Related Documents
For additional information, see the following documents and resources.
Related TopicDocument Title
Regulatory compliance and safety
information
Cisco IOS software website and reference
documentation
Information about Cisco’s 3G wireless
connectivity solutions
Cisco Network Modules and Interface Cards Regulatory Compliance and Safety
Information
Obtaining Documentation, Obtaining Support, and Security
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
Obtaining Documentation, Obtaining Support, and Security Guidelines
Connecting Cisco EHWIC-3G-EVDO-x to the Network
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partner does not imply a partnership relationship between Cisco and any other company. (1005R)
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