ARRIS WTM552 User Manual
Touchstone® WTM552 Telephony Modem
User’s Guide
Get ready to experience the Internet’s express lane! Whether you’re checking out
streaming media, downloading new software, checking your email, or talking with
friends on the phone, the T ouchstone WTM552 Telephony Modem brings it all to you
faster and more reliably . All whil e providing toll quality V oice o ver IP telephone service and both wired and wireless connectivity. Some models even provide a Lithium-Ion battery backup to provide continued telephone service during power
outages.
The Touchstone Telephony Modem provides four Ethernet connections for use as
the hub of your home/office Local Area Network (LAN). The Touchstone Telephony
Modem also provides 802.11b/g wireless connectivity for enhanced mobility and
versatility. In addition, the Touchstone Telephony Modem provides for up to two
separate lines of telephone service.
Installation is simple and your cable company will provide assistance to you for any
special requirements. The links below provide more detailed instructions.
Safety Requirements
Getting Started
Battery Installation and Replacement (WTM552G/H Models Only)
Installing and Connecting Your Tele phony Modem
Configuring Your Wireless Connect ion
Configuring Your Ethernet Connection
Using the Telephony Modem
Troubleshooting
Glossary
Touchstone® WTM552 Telephony Modem User’s Guide 1
Export Regulations
This product may not be exported outside the U.S . and Canada without U.S. Department of Commerce, Bureau of Export Administration authorization. Any export or re-export by the purchaser, directly or indirectly, in contravention of U.S. Export Administration Regulation is prohibited.
Copyright © 2005–2007 ARRIS Group. Patents pending. All rights reserved.
The information in this document is subject to change without not ice. The statement s, configur ations, t echnical data, and recom -
mendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty.
Users must take full resp onsibility for their applic ations of any products speci f ied in this document. T he information in this document is proprietary to ARRIS.
ARRIS, Touchstone, and the ARRIS logo are trademarks or registered trademarks of ARRIS Group. All other trademarks and registered trademarks are the property of their respective holders.
Release 5 Standard 1.1 April 2007
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Safety Requirements
ARRIS T elephon y Modems comply with the applicable requirements for
performance, construction, labeling, and information when used as
outlined below:
CAUTION
Potential equipment damage
Potential loss of service
Connecting the Telephony Modem to existing
telephone wiring should only be performed by a
professional installer. Physical connections to the
previous telephone provider must be removed and
the wiring must be checked; there must not be any
voltages. Cancellation of telephone service is not
adequate. Failure to do so may result in loss of
service and/or permanent damage to the T elephony
Modem.
CAUTION
Potential equipment damage
Do not locate the equipment within 6 feet (1.9m) of
a flame or ignition source (e.g. heat registers, space
heaters, fireplaces, etc.), to avoid damage or injury
from battery explosion.
• The Telephon y Modem is designed to be connected directly to a
telephone.
• Connecting the Telephony Modem to the home's existing telephone wiring should only be performed by a professional installer.
• Do not use product near water (i.e. wet basement, bathtub,
sink or near a swimming pool, etc.), to avoid risk of electrocution.
• Avoid using and/or connecting the equipment during an electrical storm, to avoid risk of electrocution.
• Use only power supply and power cord included with the equipment.
• Equipment should be installed near the power outlet and should
be easily accessible.
• The shield of the coaxial cable must be connected to earth
(grounded) at the entrance to the building in accordance with
applicable national electrical installation codes. In the U.S. , this
is required by NFPA 70 (National Electric al Code) Article 820. In
the European Union and in certain other countries, CA TV installation equipotential bonding requirements are specified in IEC
60728-11, Cable networks for television signals, sound signals
and interactive services, Part 11: Safety. This equipment is intended to be installed in accordance with the requirements of
IEC 60728-11 for safe operation.
If the equipment is to be installed in an area serviced by an IT
power line network, as is found in many areas of Norway, special attention should be given that the installation is in accordance with IEC 60728-11, in particular Annex B and Figure B.4.
• In areas of high surge events or poor grounding situations and
areas prone to lightning strikes, additional surge protection
may be required (i.e. PF11VNT3 from American P ower Conv ersion) on the AC, RF, Ethernet and Phone lines.
• When the Telephony Modem is connected to a local computer
through USB or Ethernet cables, the computer must be properly grounded to the building/residence AC ground network. All
plug-in cards within the computer must be properly installed
and grounded to the computer frame per the manufacturer’s
specifications.
Touchstone® WTM552 Telephony Modem User’s Guide 3
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European Compliance
This product complies with the provisions of the Electromagnetic Compatibility (EMC) Directive (89/336/EEC), the Amending Directive (92/
31/EEC), the Low Voltage Directive (73/23/EEC), and the CE Marking
Directive (93/68/EEC). As such, this product bears the CE marking in
accordance with the above applicable Directive(s).
A copy of the Declaration of Conformity ma y be obtained from: ARRIS
International, Inc., 3871 Lakefield Drive, Suite 300, Suwanee, GA
30024.
As indicated by this symbol, disposal of this product or battery is governed by Directive 2002/96/
EC of the European Parliament and of the Council
on waste electrical and electronic equipment
(WEEE). WEEE could potentially prove harmful to
the environment; as such, upon disposal of the T elephony Modem the Directive requires that this
product must not be disposed as unsorted municipal waste, but rather collect ed separately and disposed of in accordance with local WEEE
ordinances.
This product complies with directive 2002/95/EC of the
European Parliament and of the Council of 27 January
2003 on the restriction of the use of certain hazardous
substances (RoHS) in electrical and electronic equipment.
Touchstone® WTM552 Telephony Modem User’s Guide 4
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Getting Started
About Your New Telephony Modem
The Touchstone WTM552 Telephony Modem is DOCSIS or Euro-DOCSIS compliant
with the following features:
• Speed: much faster than dialup or ISDN service
• Convenience: supports Ethernet and 802.11b/g wireless connections; both
can be used simultaneously
• Flexibility: provides two independent lines of telephone service as well as
high speed data
• Compatibility: supports tiered data services (if offered by your cable
company)
All WTM552 models provide:
• Wireless 802.11b/g connectivity
• Four Ethernet ports for connections to non-wireless devices
• Up to two lines of telephone service
Your WTM552 model is one of the following:
• WTM552A: DOCSIS compliant
• WTM552B: Euro-DOCSIS compliant
• WTM552G: DOCSIS compliant with Li-Ion backup battery
• WTM552H: Euro-DOCSIS compliant with Li-Ion backup battery
Touchstone® WTM552 Telephony Modem User’s Guide 5
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What’s in the Box?
Make sure you have the following items before proceeding. Call y our cable company
for assistance if anything is missing.
• Telephony Modem
• Antenna
•Power Cord
• Quick Installation Guide
•Ethernet Cable
•CD-ROM
• Screws for wall-mounting the unit
• End User License Agreement
What’s on the CD?
The CD provides the following items:
• Quick Install Guide
• User’s Guide
Touchstone® WTM552 Telephony Modem User’s Guide 6
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Items You Need
If you are installing the T elephony Modem yourself, make sure you have the following items on hand before continuing:
Coax Cable
• Telephony modem package: see What’s in the Box?
the package.
• Coaxial cable (coax): as shown in the image to the left, this is a thin cable
with a connector on each end. It is the same kind of wire used to connect
to your television for cable TV. Y ou can buy coax from any electronics retailer
and many discount stores; make sure it has connectors on both ends. There
are two types of connectors, slip-on and screw-on; the screw-on connectors
are best for use with your Telephony Modem. The coax should be long
enough to reach from your Telephony Modem to the nearest cable outlet.
• Phone Cable: as shown in the image to the left, this is a standard phone
cable with standard phone connectors (RJ11 type) on both ends. You can
buy phone cables from any electronics retailer and many discount stores.
• Splitter (optional): provides an extra cable connection by splitting a single
outlet into two. Y ou ma y need a splitter if you hav e a TV already connected
to the cable outlet that you want to use. You can buy a splitter from any
electronics retailer and most discount stores; you may also need a short
piece of coax cable (with connectors); use it to connect the splitter to the
cable outlet and then connect the Telephony Modem and TV to the splitter.
Note: A splitter effectively cuts the signal in half and sends each half to its
two outputs. Using several splitters in a line may deteriorate the quality of
your television, telephone, and/or internet connection.
• Information packet: your cable company should furnish you with a packet
containing information about your service and how to set it u p. Read this
information carefully and contact your cable company if you have any questions.
for a list of items in
Phone Cable
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Getting Service
Before trying to use your new Telephony Modem, contact your local cable company
to establish an Internet account and telephone service. When y ou call, have the following information ready:
• the Telephony Modem serial number and cable MAC addresses of the unit
(printed on a sticker on the bottom of the Telephony Modem, as shown on
the next page)
• the model numbe r of the Telephony Modem
If the Telephony Modem was provided by your cable company, they already have
the required information.
In addition, you should ask your cable company the following questions:
• Do you have any special system requirements or files that I need to download after I am connected?
• When can I start using my Telephony Modem?
• Do I need a user ID or password to access the Internet or my e-mail?
• Will my phone number(s) change?
• What new calling features will I have and how do I use them?
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System Requirements
The Touchstone Telephony Modem operates with most computers. The following
describes requirements for each operating system; see the documentation for your
system for details on enabling and configuring networking.
To use the Telephony Modem, you need DOCSIS high-speed Internet service from
your cable company.
Windows
Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows ME, Windows
2000, or Windows XP. A supported Ethernet or wireless LAN connection must be
available.
MacOS
System 7.5 to MacOS 9.2 (Open T ransport recommended) or MacOS X. A supported
Ethernet or wireless LAN connection must be available.
Linux/other Unix
Hardware drivers, TCP/IP, and DHCP must be enabled in the kernel. A supported
Ethernet or wireless LAN connection must be available.
About this Manual
This manual is written to cover all of the different WTM552 models. Your model ma y
or may not have all of the capabilities outlined in this manual. To determine which
model you have purchased, refer to the image at the left. The model number is on
the label affixed to the Telephony Modem.
FOR HOME OR OFFICE USE
Model Number
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Ethernet or Wireless?
There are two ways to connect your computer (or other equipment) to the T elephony Modem. The following will help you decide which is best for you:
Ethernet
Ethernet is a standard method of connecting two or more computers into a Local
Area Network (LAN). You can use the Ethernet connection if your computer has
built-in Ethernet hardware.
Note: T o connect more than four computers to the WTM552 through the Ether-
net ports, you will need an Ethernet hub (available at computer retailers).
The Telephony Modem package comes with one 6-foot (1.9m) Ethernet cable (the
connectors look like wide telephone connectors); you can purchase more cables if
necessary at a computer retailer. If you are connecting the Telephony Modem di-
Ethernet Cable
rectly to a computer, or to an Ethernet hub with a cross-over switch, ask for
Category 5 (CAT5) straight -through cable. If you are connecting the Telephony Modem to an Ethernet hub without a crossover switch, ask for a Category 5 crossover
cable.
Wireless
The 802.11 wireless LAN standard allows one or more computers to access the
WTM552 using a wireless (radio) signal. Y ou can use the wireless connection if your
computer has a built-in or aftermarket wireless card.
Note: T o learn more about which wireless hardware works best with your com-
puter, see your computer dealer.
Both
If you have two or more computers, you can use Ethernet for up to four devices
and wireless for others. To connect five or more computers to the Ethernet ports,
you will need an Ethernet hub (available at computer retailers).
For more information about connecting two or more computers, contact your cable
service provider.
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What About Security?
Having a high-speed, always-on connection to the Internet requires a certain
amount of responsibility to other Internet users—including the need to maintain a
reasonably secure system. While no system is 100% secure, you can use the following tips to enhance your system’s security:
• Keep your operating system updated with the latest security pa tches. Run
the system update utility at least weekly.
• Keep your email program updated with the latest security patches. In addition, avoid opening email containing attachments, or opening files sent
through chat rooms, whenever possible.
• Install a virus checker and keep it updated.
• Avoid providing web or file-sharing services over your Telephony Modem.
Besides certain vulnerability problems, most cable companies prohibit running servers on consumer-level accounts and may suspend your account for
violating your terms of service.
• Use the cable company’s mail servers for sending email.
•Avoid using proxy
abuse by other Internet users (some are shipped open by default). Criminals can take advantage of open proxi es to hide their identity when breaking
into other computers or sending spam. If you have an open proxy, your cable company may suspend your account to protect the rest of the network.
• If you use the wireless LAN, make sure you enable wireless security on the
Telephony Modem (for the same reasons that you should run only secured
proxies). See “Wireless Configuration” for help.
software unless you are certain that it is not open for
Touchstone® WTM552 Telephony Modem User’s Guide 11
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Battery Installation and Replacement (WTM552G/H Models Only)
2.2 Ah Battery
4.4 Ah Battery
WTM552G and WTM552H Telephony Modems may optionally include one of two
types of Lithium-Ion batteries: a 2.2 Amp-hour
For safety and regulatory purposes, the battery is shipped outside of the Telephony
Modem and must be installed.
Identify the battery type using the photos to the left and use the proper installation
procedure:
• 2.2 Ah Battery Installation and Replacement
• 4.4 Ah Battery Installation and Replacement
Note: The 4.4 Ah battery is longer and has a strap between the guides.
To order new or replacement batteries, visit
Product IDs are:
• 2.2 Ah battery: 718003
• 4.4 Ah battery: 718005
(Ah) battery or a 4.4 Ah battery.
http://www.yourbroadbandstore.com/.
Touchstone® WTM552 Telephony Modem User’s Guide 12
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2.2 Ah Battery Installation and Replacement
This model of the T elephony Modem has the abili ty to provide battery backup in the
event of a local power loss. The battery backup is not intended to take the place of
Latch
End
AC power. The 2.2Ah Lith ium-Ion battery pa ck can be inserted in to the Telephony
Modem. Use this procedure to install and to replace the backup battery.
Action
1 Insert a finger into the latch opening, press down and pull back on the latch
holding the battery door (on the bottom of the Telephony Modem). Pull the
door toward you. Set the door aside in a safe place.
Battery Slot
Battery Guide
2 Hold the battery pack so that the guides on the battery align with the slots
on the Telephony Modem and slide the battery into the bay. The diagram on
the left shows the proper orientation. The battery will not insert completely
into the Telephony Modem if not oriented correctly.
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3
Push the battery pack into the bay until it seats into place. The following di-
Battery
Opening
agram shows a Telephony Modem with a 2.2Ah battery pack installed. If
you are taking the battery out of the unit, position your finger in the
battery opening area and use leverage to dislodge the battery while
pulling it straight back.
Note: The Telephony Modem will not begin operating until you apply AC
power.
Receiver
Slots
Hinge Tabs
4 R eplace the door. To do so, place the hinge tabs of the battery door into the
receiver slots inside the Telephony Modem battery compartment on the opposite end of the battery opening slot. Rotate the door toward the unit until
the latch snaps back into place.
Note: The Lithium-Ion battery pack contains precious material, so there
may be some benefit in recycling. Please dispose of the battery responsibly
and in accordance with local ordinances.
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4.4 Ah Battery Installation and Replacement
The 4.4 Ah Lithium-Ion battery pack can be inserted into the Telephony Modem.
Use this procedure to install and to replace the backup battery.
Action
1 Insert a finger into the latch opening, press down and pull back on the latch
holding the battery door (on the bottom of the Telephony Modem). Pull the
door toward you. Set the door aside in a safe place.
2 Hold the battery pack so that the guides on the battery align with the slots
on the Telephony Modem and slide the battery into the bay. The diagram on
the left shows the proper orientation.
Note: The battery wi ll not insert completely int o the Telephony Modem if not
oriented correctly. The battery should slide into the bay without significant
force. Line up the slots in the battery bay with the guides on the battery and
apply even pressure on both ends of the battery.
Battery Guide
Latch
End
Battery
Pull Strap
Receiver
Slots
Hinge Tabs
WRONG WRONG RIGHT
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3
Push the battery pack into the bay until it latches into place. The diagram
Battery
Pull Strap
Battery
Opening
shows a Telephony Modem with a 4.4 Ah Lithium-Ion battery pack installed.
If you are taking the battery out of the unit, make sure to use the
battery pull strap to dislodge the battery.
Note: The Telephony Modem will not begin operating until you apply AC
power.
Receiver
Slots
Hinge Tabs
4 Replace the door. To do so, place the tabs of the battery door into the slot
on the Telephony Modem battery compartment. Rotate the door toward the
unit until the latch snaps back into place.
Note: The Lithium-Ion battery pack contains precious material, so there
may be some benefit in recycling. Please dispose of the battery responsibly
and in accordance with local ordinances.
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Installing and Connecting Your Telephony Modem
Before you start, make sure that:
• You have contacted your cable company and v erified that they provide data
and telephone service using standard DOCSIS technology.
•You have all the Items You Need
• Cable, phone, and power outlets are available near the computer. If a cable
outlet is not conveniently located, your cable company can install a new one.
CAUTION
Risk of equipment damage
Only qualified installation technicians should connect the T elephony Modem to house wiring. Incumbent telephone service must be physically
disconnected at the outside interface box before making any
connections.
.
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Front Panel WTM552A/B
WTM552A/B
Touchstone
Telephony
Modem
TM
Telephone2
Tel ephone 1
DMZ
WLAN
LAN 4
LAN 3
D
LAN 2
LAN 1
F G H I
Online
Link
Power
DS
US
The front of the Telephony Modem has the following indicators:
A Telephone 1/2: indicates the status of each telephone line
BDMZ: indicates the status of the DMZ connection (a computer outside the
firewall)
CWLAN: indicates the status of the wireless LAN
DLAN 1–4: indicates the status of each Ethernet port
ELink: indicates Ethernet or wireless connectivity between the Telephony
Modem and computers
F Online: indicates internet data transmission status
A
B C
E
GUS: indicates upstream connectivity
HDS: indicates downstream connectivity
IPower: indicates whether AC power is available to the unit
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Front Panel WTM552G/H
The front of the Telephony Modem has the following indicators:
WTM552G/H
A Battery: indicates status of the battery in the Telephony Modem
E
G HGI J
B Telephone 1/2: indicates the status of each telephone line
CDMZ: indicates the status of the DMZ connection (a computer outside the
firewall)
DWLAN: indicates the status of the wireless LAN
ELAN 1–4: indicates the status of each Ethernet port
FLink: indicates Ethernet or wireless connectivity between the Telephony
Modem and computer
B
C D
A
F
HUS: indicates upstream connectivity
IDS: indicates downstream connectivity
JPower: indicates whether AC powe r is available to the unit
G Online: indicates internet data transmission status
Touchstone® WTM552 Telephony Modem User’s Guide 19
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Rear Panel
WTM552
C
A/B
D E
The rear of the Telephony Modem has the following connectors and controls:
ATel 1 (A/B/H models): connector for the first phone line
Tel 1/2 (G models): connector for the first phone line (or both lines of a
2-line phone)
BTel 2: connector for the second phone line
C Antenna: connector for the wireless antenna
A
BG
WTM552
C
F
G/H
D E
4,3,2,1
H
D Ethernet connectors
ERouter Reset button: resets the Ethernet and wireless ports without affect-
ing telephony service.
FTM Reset button: resets the Telephony Modem as if you power cycled the
unit. Use a pointed non-metallic object to press this button.
GCable: connector for the coax cable
HPower: connector for the power cord
: for use with a computer LAN port
A
BG
F
H
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Selecting an Installation Location
There are a number of factors to consider when choosing a location to install your
Telephony Modem:
• Is an AC outlet available nearby? For best results, the outlet should not be
switched and should be close enough to the Telephony Modem that extension cords are not required.
• Is a cable jack available? For best performance, keep the number of splitters
between the jack and cable drop to a minimum. Each splitter attenuates (reduces) the signal available to the T e lephony Modem. A large number of splitters can slow down the Internet connection and even affect yo ur telephone
service.
• Can you easily run cables between the T elephon y Modem’s location and the
phones?
• If you are connecting devices to the Ethernet ports, can you easily run cables between the Telephony Modem’s location and those devices?
• If you want to mount the T elephony Modem on a wall , does the location provide a solid surface for secure attachment? For best results when mounting
the Telephony Modem on drywall, position the Telephony Modem so at least
one of the screws are fastened to a stud. This may prevent the Telephony
Modem from pulling out of the wall in the future.
• If you want to install the Telephony Modem on a desktop, is there enough
space on either side to keep the vents clear? Blocking the vents may cause
overheating.
• How close are your wireless devices? The Telephony Modem wireless connection range is typically 100–200 feet (30m–65m). A number of factors
can affect connection range, as described below.
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Factors Affecting Wireless Range
A number of factors can affect the usable range for wireless connections.
Increases range: • Raising the antenna above the devices (for example, in-
stalling the Telephony Modem in the upper floor of a
multi-story dwelling or using an aftermarket omnidirectional antenna)
• Using an aftermarket directional antenna (increases
range in one direction while decreasing range in other
directions)
• Adding wireless hubs in a bridge (WDS) network
Decreases ra nge: • Lowering the antenna below the devices (for example,
installing the Telephony Modem in a basement)
• Removing the antenna
• Metal or concrete walls between the Telephony Modem
and other devices
• Large metal appliances, aquariums, or metal cabinets
between the Telephony Modem and other devices
• Interference and RF noise (2.4 GHz wireless phones,
microwave ovens, or other wireless networks)
Note that decreasing the range of your wireless network may be beneficial, as long
as the decreased range is sufficient for your needs. By limiting your network’s
range, you reduce interference with other networks and make it harder for unw anted users to find and connect to your network.
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Mounting the Telephony Modem
You can either mount the Telephony Modem on a wall or place it on a desktop. Fo r
wall-mount applications, you can mount the Telephony Modem with the indicators
facing upward (vertical) or to the side (horizontal).
Tools and Materials
For wall-mounted installations, make sure you have the following tools and materials before proceeding:
• for mounting on drywall: Two 1/4” (6mm) drywall anchors and a drill with
1/4” (6mm) bit (not included)
• for mounting on plywood or studs: two #6 x 1.5” (38.1 mm) self
screws (included)
• screwdriver (flat-blade or Phillips, depending on what kind of screws you
use)
• wall-mount template (included with the T elephony Modem Quick Installation
Guide)
• transparent tape (for temporarily securing the mounting template to the
wall)
tapping
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Instructions
Wall-mounting instructions
1 Position the mounting template on the surface where you intend to mount
the Telephony Modem and secure in place with transparent tape.
2 Drill holes through the template in the specified locations for the mounting
Step 1 Step 2
screws. After drilling holes, remove the template from the surface.
3 If using drywall anchors, set them into the wall. Then, drive the screws into
the wall leaving a gap of about 1/8” (3 mm) between the screw head and
the wall. If not using anchors, just drive the screws.
4 Orient the Telephony Modem with the indicator lights facing up or right, as
desired. Slip both mounting slots (in the back of the T elephony Modem) over
the screws, then slide the case down until the narrow end of the keyhole slot
Step 3 Step 4
contacts the screw shaft.
5 Proceed to Connecting the Telephony Modem
.
Desktop mounting instructions
1 Position the Telephony Modem so that:
• air flows freely around it
• the back faces the nearest wall
• it will not fall to the floor if bumped or moved
2 Proceed to Connecting the Telephony Modem
.
Touchstone® WTM552 Telephony Modem User’s Guide 24
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