High Performance
V.90/V.34+/V.42bis
56K BPS
PCI Internal
Voice/FAX/Data/
Speakerphone
Modem
User's Manual
Contents
Section One - Introduction .......................... 1
Section Two - Installation............................. 1
Section Three - A T Command Set ............... 6
Section Four - S Registers ........................ 1 3
Section Five - Result Codes ...................... 14
Section Six - Troubleshooting.................... 15
Section Seven - Support and Service......... 17
Appendix A - Specifications ..................... 17
Appendix B - Notices ................................ 1 7
Part #MAN152 Rev. 1.0V.90-CL
The information contained in this manual has been
validated at the time of this manual's production.
The manufacturer reserves the right to make any
changes and improvements in the product described in this manual at any time and without
notice. Consequently the manufacturer assumes
no liability for damages incurred directly or indirectly from errors, omissions or discrepancies between the product and the manual.
All registered trademarks are the property of their
respective owners.
The MaxTech XPVS56P/C PCI Plug and Play Data,
Fax, Voice Speakerphone Modem connects your computer to all popular high speed modems available today.
The modem utilizes
increased download speeds using regular telephone
lines. The modem incorporates Plug and Play for ease of
installation.
This manual describes the hardware installation
procedures for your new modem. Additional information
on AT commands and S-registers is provided so that your
system can be customized for a particular operating
environment.
V.90 (56Kbps)
technology to provide
*Note: V.90 is capable of downloading at 56Kbps. However, current FCC regulations limit its speeds to 53Kbps.
Section Two - Installation
This section will provide step by step instructions
on how to install your new 56 Kbps Data, Fax, Voice,
Speakerphone modem. Installation of this modem is a twostep process consisting of: 1) hardware installation and
2) communication software installation.
2.1Unpacking Your Modem
Be certain that you have all the items listed below.
This package contains:
• A modem• A telephone cable
• User's manual• Software for the modem
• Software user's manual
2.2What You Need
You will need:
1. A phillips-head screw driver.
2. A computer running Microsoft Windows 95 or
later.
3. An available PCI slot in your PC.
Proceed to Section 2.3 now if you have every-
thing required.
1
2.3Hardware Installation
Installation of this modem requires opening and
manipulating your PC. Exercise caution at all times when
working with AC powered and static-sensitive equipment. Turn off and unplug your PC before installation.
Discharge any static electricity from your body by touching any grounded metal surface of the PC system, such
as its power supply cover.
1. Turn off and unplug your computer from the AC
outlet.
2. Remove your computer's cover (refer to your
computer's owner's manual).
3. Select any available 32-bit PCI card slot and remove
the slot cover (refer to Figure 2-3).
Figure 2-3 PCI Expansion Slots
4. Carefully slide the PCI internal modem into the slot
you have chosen, applying even pressure until the
modem is completely seated in the slot.
5. Fasten the retaining bracket with the screw from
the slot cover. Make sure the modem is properly
aligned. Store the slot cover for future use.
6. Replace the computer cover and plug in your com-
puter.
7. Connect the telephone cable from the modem's LINE
connector to the telephone wall jack.
8. Optionally, connect your telephone to the modem's
PHONE connector, a microphone to the MIC con-
nector and a speaker to the SPK connector.
9. Turn your computer on. Your modem is now in-
stalled.
2
2.4Hardware Configuration
The version of Windows 9x you have will determine
which set of dialog boxes is presented to you when
installing the modem in Windows 9x. Proceed to one of the
following sections, depending on your Windows 9x's
diaglog box:
• Section 2.4.1 when Windows 95 starts for
the first time after card installation, it detects
the modem and it displays the New Hard-
ware Found dialog box
• Section 2.4.1.1 when Windows 95 starts for
the first time after card installation, it detects
the modem and it displays the Update Device
Driver Wizard.
• Section 2.4.1.2 When Windows 98 starts for
the first time after card installation, it detects
the adapter and displays the Add New
Hardware Wizard.
2.4.1 W i ndows 95 Release 4.00.950
When Windows 95 starts for the first time after card
installation, it detects the modem and displays the NewHardware Found dialog box.
Under New Hardware Found, when asked to
“Select which driver you want to install for your new
hardware,” click on “Driver from disk provided by hardware manufacturer.” Click “OK.”
The Install From Disk dialog box now instructs
you to “Insert the manufacturer's installation disk into the
drive selected, and then click OK.” Insert the modem's
driver diskette into the disk drive and type A:\ (or B:\ if
inserted in drive B) in the “Copy manufacturer's files
from:” box. Click “OK.”
Windows 95 may request its own installation disks
or CD-ROM for some files. Insert the Windows 95 disks
or CD-ROM as required. When all necessary files are
copied, the modem is configured. Windows 95 will assign
the modem a COM port and IRQ line. Proceed to Section
2.5.
3
2.4.1.1Windows 95 Release 4.00.950 B
When Windows 95 starts for the first time after card
installation, it detects the modem and displays the UpdateDevice Driver Wizard. Insert the driver disk into the disk
drive and click “Next.” Windows will find the driver on the
driver disk. Click “Finish. Windows 95 may request its own
installation disks or CD for some files. Insert the Windows
95 disks or CD as required.
Windows will now find a second device on the
modem. Make sure that the driver disk is still in the disk
drive and click “Next.” Windows will find the second
driver. Click “Finish” to complete the installation.
When all necessary files are copied, the modem is
configured. Windows 95 will assign the modem a COM
port and IRQ line. Proceed to Section 2.5.
2.4.1.2Windows 98
When Windows 98 starts for the first time after card
installation, it detects the adapter and displays the Add
New Hardware Wizard.
Insert the disk that contains your modem drivers into
the appropriate drive and click “Next. Windows 98 will ask
you "What do you want Windows to do" Select "Search
for the best driver for your device". Click "Next". Windows
98 will find the driver on the driver disk. Click "Next".
Windows will now find a second device on the modem.
Make sure that the driver disk is still in the disk drive and
click “Next.” Windows will find the second driver. Click
“Finish” to complete the installation.
When all necessary files are copied, the modem is
configured. Windows 98 will assign the modem a COM
port and IRQ line. Proceed to Section 2.5.
2.5Software Installation and Configuration
You are now ready to install and configure the
communication software. Refer to your software manual
for installation procedures.
We suggest the following communication parameters when you first use your data communication
4
software. Consult the software manual for information on
using these and other parameters/features.
115,200 bps; 8 data bits; no parity; 1 stop bit;
RTS/CTS flow control set to “on;” initialization
string: AT&F
Select a “Generic Class 1” modem type in your fax
software
Note that your software must be configured to
communicate with the modem on the same COM port and
IRQ line used by the modem.
2.6Testing Your Modem After Installation
In order to test your modem you should be familiar
with your communication software. Load and set up your
communication software and enter into “terminal mode.”
Make sure that the COM Port and IRQ settings of the
modem match the software. Type AT on your terminal
screen and press ENTER. You may see “AT”, “AATT” or
nothing on the screen. In all cases, the modem should
respond with an OK or 0. If it does not, either the modem
has not been installed properly or the software has not
been properly configured. Review Sections 2.2 -2.5 and
be certain that the modem and the software have been
properly installed. If required, refer to Section 6 for
additional troubleshooting information.
2.7Using Your Modem
The software included with your modem product
provides a user friendly interface to access the fax, data
and voice/speakerphone functions of your modem.
This
software should be sufficient for all of your communication needs
to access the modem manually via modem commands.
Read Section 3 for a summary description of the modem
command set before manually accessing the modem. You
may want to read the software manual first, however, as
the software may already provide a user friendly method
of accessing the functions you need (i.e. dialing or
answering calls).
. There may be times when you need
5
2.8Where To Go From Here
You should familiarize yourself with the functions
available from the included software by reading its
manual. You will be accessing most, if not all, of the
modem's functions from this software. You may also use
any other commercially available communication software with the modem. Read Section 3 only if you are
interested in accessing the modem manually, and not
through the included software. Section 4 and 5 contain
reference material, and can be skipped. If you have
difficulties getting your modem to work, read Section 6
Troubleshooting,
questions and problems.
to find answers to commonly asked
Section Three - AT Command Set
3.1Executing Commands
Commands are accepted by the modem while it is in
Command Mode. Your modem is automatically in Command
Mode until you dial a number and establish a connection.
Commands may be sent to your modem from a PC running
communication software or any other terminal devices.
Your modem is capable of data communication at rates
of: 300, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400,57600 and 115200 bps. Make sure your COM port baud rate
settings in your communications software is set to one of the
above speeds.
3.2Command Structure
All commands sent to the modem must begin with
AT and end with ENTER. All commands may be typed in
either upper or lower case, but not mixed. To make the
command line more readable, spaces may be inserted
between commands. If you omit a parameter from a
command that requires one, it is just like specifying a
parameter of 0.
Example:
ATH [ENTER]
This command causes your modem to hang up.
6
3.3Basic AT Commands
In the following listings, all default settings are
printed in bold text.
Command Function
AManually answer incoming call
A/Repeat last command executed. Do not
ATAppears at the beginning of every
B_B0CCITT mode
C_C0Carrier always off
precede A/ with AT or follow with ENTER
command line
B1Bell mode
B2V.23 at 1200/75
B3V.23 at 75/1200
C1Normal transmit carrier
D_0 - 9, A-D, # and *
DS=nDial one of the four telephone numbers
E_E0Commands are not echoed
F_F0Enables online echo
+++TIES Escape Characters - Switch from
H_H0Force modem on-hook (hang up)
I_I0Display product-identification code
Ppulse dialing
Roriginate calls in answer mode
Ttouch-tone dialing
Wwait for second dial tone
,pause
@wait for five seconds of silence
!flash
;return to Command Mode after dialing
(n=0-3) stored in the modem’s nonvolatile memory
E1Commands are echoed
F1Disables online echo
Data Mode to Command Mode
H1Force modem off-hook (make busy)
I1Factory ROM ID
I2Internal memory test
I 3Device ID
I 4Reserved
7
I5Modem chip hardware configuration
I6Country code
I7Board manufacturer firmware version
I8Modem firmware version
I10Modem board configuration
L_L0Low speaker volume
M_M0Internal speaker off
N_N0Connect only at DTE rate
O_O0Return to Data Mode
PSet Pulse dial as default
Q_Q0Modem sends responses
Sn?
Sn=
TSet Tone Dial as default
V_V 0Numeric responses
W_W0 Modem reports DTE response
X_X0Hayes Smartmodem 300 compatible
L1Low speaker volume
L2Medium speaker volume
L3High speaker volume
M1Internal speaker on until carrier
detected
M2Internal speaker always on
M3Internal speaker on until carrier detected
mode, error control, data compression,
DCE transmit and receive speed
W4 Modem reports protocol, data
compression and DTE data rate
responses/blind dialing
8
X1Same as X0 plus all CONNECT responses/
blind dialing
X2Same as X1 plus dial tone detection
X3Same as X1 plus busy signal detection/
blind dialing
X4All responses and dial tone and
busy signal detection
Y_Y0Modem does not send or respond
Z_Z0Reset and retrieve active
to break signals
Y1Modem sends break signal for four
seconds before disconnecting
configuration profile 0
Z1Reset and retrieve active configuration
profile 1
3.4Extended AT Commands
&C_&C0 Force Carrier Detect Signal High (ON)
&D_&D0 Modem ignores the Data Terminal Ready
&F&FRecall factory default configuration
&G_&G0 Guard tone disabled
&J_&J0 Auxiliary relay never operated
&K_&K0 Disable flow control
&M_&M0 Asynchronous operation
&P_&P0 United States setting for off-hook-
&C1 Turn on Carrier Detect signal when
remote carrier signal is present
signal
&D1 Modem returns to Command Mode after
DTR toggle
&D2 Modem hangs up, returns to the
Command Mode after DTR toggle
&D3 Resets modem after DTR toggle
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&J1 Activates auxiliary relay when modem is
off-hook
&K3 Enable hardware flow control
&K4 Enable software flow control
(make) to-on-hook (break) ratio
&P1 UK and Hong Kong off-hook-(make) to-
on-hook (break) ratio
9
&Q_&Q0 Modem in asynchronous mode
&S_&S0 Force DSR Signal High (ON)
&T_&T0 Ends test in progress
&S1 DSR is off in command mode, on in on-line
mode
&T1 Perform Local Analog Loopback Test
&U_&U0 Enable Trellis Coding @ V.32
&V_&V0 Displays Active and Stored Profile 0
&W_&W0 Stores the active profile as Configuration
&Y_&Y0 Configuration Profile 0 active upon
&Zn=xn=0-3 Store telephone number x into non-volatile
+MS?Displays the current Select Modulation
+MS=?Displays a list of supported Select
+MS=a,b,c,d Select modulation where: a=V21, V22,
%E_%E0 V.22bis auto-retrain disabled
&U1 Disable Trellis Coding @ V.32
&V1 Displays Active and Stored Profile 1
&V3 Displays relay and general-purpose I/O
status
Profile 0
&W1 Stores the active profile as Configuration
Profile 1
Power on or reset
&Y1 Configuration Profile 1 active upon Power
on or reset
RAM
settings
Modulation options
V22B, V23C, V32, V.32B, V34, V.34S,
V34B, V34BS, V90; b=0-1; c=0-33600;
and d=0-33600. A, b, c, d default=V90,
1, 300, 0. Parameter “a” specifies the
modulation protocol desired. Parameter
“b” specifies automode operations
where: 0=automode disabled, 1=
automode enabled. Parameter “c”
specifies the minimum connection data
rate (0-56600). Parameter “d” specifies
the maximum connection rate (0-56600),
where a 0 specifies highest possible
data rate, depending on the current DTE
rate.
10
%E1 V.22bis auto-retrain enabled
%E2 Enable line signal quality monitor and
fallback/fallforward
%G_%G0 Enable Auto Fall Forward/Back
-C_-C0 Calling tone disabled
%G1 Disable Auto Fall Forward/Back
-C1 1300hz calling tone
-C2 V.8 and 1300hz calling tones enabled
3.5MNP/V.42/V.42bis Commands
%A
n
%C_%C0 Disable MNP Class 5 data compression
\A_\A0 64-character maximum MNP block size
\B
n
\C_\C0 Do not buffer data during LAPM/
\G_\G0 Disable DCE flow control
\J_\J0Disable serial port data rate
\K
n
Set auto-reliable fallback character to n
(where n = 0 to 127, ASCII). Requires the
\C2 setting. Default=13
%C1 Enable MNP Class 5 data
compression
\A1 128-character maximum MNP block size
\A2 192-character maximum MNP block size
\A3 256-character maximum MNP block
size
Send a 1/10 second line break to the
modem, where n = 1 to 9. At normal
connect, the default is 0
MNP handshaking
\C1Buffer all data for 4 seconds, until
receiving 200 characters or until a packet
is detected
\C2 Do not buffer data; switch to normal
mode when fallback character is
detected
\G1 Enable DCE flow control
adjustment (keep high data rate
between DTE and modem,
regardless of modem-to-modem
data rate)
\J1Enable serial port data rate adjustment
so serial data rate automatically adjusts
to match the modem-to-modem data rate
Set break control, where n= 0 to 5.
11
Default is 5
\N_\N 0 Normal data-link only
\OInitiate reliable link during a normal link
\Q_\Q0 Turn off flow control
\T
\UAccept reliable link during a normal link
\X_\X0Process XON/XOFF but don’t pass
\YSwitch to reliable link from normal link
\ZEnd the reliable connection and switch to
-J-J0Disable error control detection phase
"H"H0 V.42bis data compression disabled
"O
\N1 Normal data-link only
\N2 MNP data link only
\N3 V.42/MNP/Normal data link
\N4 V.42 data link only
\Q1 XON/XOFF software flow control
\Q2 CTS signal unidirectional hardware flow
control
\Q3 RTS/CTS signal bi-directional
hardware flow control
n
n
Inactivity timer, where n = 0 to 90 minutes.
Default is 0
through
\X1 Process XON/XOFF and pass through
normal operation
-J1 Enable error control detection
phase
"H1 Can send but not receive V.42bis data
compression
"H2 Can receive but not send V.42bis data
compression
"H3 Bidirectional V.42bis data
compression enabled
Set maximum V.42bis data block size to
n (n=6-250). Default is 32
3.6Fax Class 1 Commands
+FAE=nData/Fax auto answer enable. Default is
+FCLASS=1Sets FAX operating mode
+FRH=nReceive HDLC data
+FRM=nReceive data
+FRS=nWait for silence
0
12
+FTH=nTransmit HDLC data
+FTM=nTransmit data
+FTS=nStop transmission and pause
3.7ISO 101 Voice Mode Commands
+FCLASS=8Voice modem select
+FLOFlow control select
+VBT=nBuffwe threshold setting
+VCID=nCaller ID selection
+VCSD=nVoice command mode silence detection
+VDR=nDistinctive ring selection
+VEM=nEvent reporting and masking
+VGM=nSpeakerphone microphone gain
+VGR=nReceive gain selection
+VGS=nSpeakerphone speaker gain
+VGT=nVolume selection
+VIPInitialize parameter
+VIT=nDTE/DCE inactivity timer
+VLS=nRelay/speaker control
+VNH=nAutomatic hang-up control
+VRA=nRingback-goes-away timer
+VRN=nRingback-never-appeared timer
+VRXRecord mode
+VSD=nSilence detection (quiet and silence)
+VSM=nCompression method selection
+VSP=nSpeakerphone on/off control
+VTD=nBeep tone duration timer
+VTS=nDTMF and tone generation
+VTXPlay mode
Section Four - S Registers
Your modem has 24 registers, designated S0
through S33. Table 4-1 shows the registers, their functions, and their default values. Some registers can have
their values changed by commands. If you use a command to change a register value, the command remains
in effect until you turn off or reset your modem. Your
modem then reverts to the operating characteristics
specified in its non-volatile memory. Refer to Section 3 for
information on how to use the AT commands to manipulate
the S registers.
13
Table 4-1 S - Registers
RegisterFunctionRange/unitsDefault
S0Auto-answer Ring0-255/rings0
S1Ring counter0-255/rings0
S2Escape code character0-127/ASCII43
S3Carriage return character0-127/ASCII13
S4Line feed character0-127/ASCII10
S5Backspace character0-32, 127/ASCII8
S6Dial tone wait time0-255/seconds2
S7Remote carrier wait time1-255/seconds60
S8Comma pause time0-255/seconds2
S9Carrier detect time0-255/0.1 second6
S10Carrier loss time0-255/0.1 second7
S11Touch-tone dialing speed50-255/0.001 second 70
S12Esc. character detect time 0-255/0.02 second50
S14Echo, response, dialing,Bit-mapped
originate/answer
S16Modem test optionsBit-mapped
S18Modem test timer0-255/seconds0
S21DTR, DCD, DSR, andBit-mapped
Long Space Disconnect
S22Speaker and responseBit-mapped
S23RDL, DTE data rate,Bit-mapped
This section describes some of the common problems you may encounter while using your modem. If you
can not resolve your difficulty after reading this chapter,
contact your dealer or vendor for assistance.
Modem does not respond to commands.
1. Make sure the modem is not configured with a
conflicting COM port and IRQ setting (see Sections
2.2-2.5). As an example, your modem can not be
configured as COM1 if another device in your system
is also configured as COM1.
2. Make sure the communication software is configured
to “talk” to the modem on the correct COM port and IRQ
setting (same COM port and IRQ setting as the
modem). Your communication software must know
which address your modem is using in the system in
order to pass data to it. Similarly, IRQ settings must be
set correctly to receive data from the modem.
3. Make sure that your modem is initialized correctly.
Your modem may have been initialized to not display
responses. You may factory-reset the modem by
issuing AT&F and pressing ENTER. The factory
default allows the modem to display responses after
a command has been executed.
4. Make sure the baud rate setting in your software is
set to 115200, 57600, 38400, 19200, 14400, 9600,
2400, 1200, or 300 bps. An incorrect baud rate
prevents the modem from operating properly.
15
Modem does not dial.
1. Make sure the modem is connected to a working
phone line. Replace the modem with a working phone
to ensure that the phone line is working.
Modem dials but does not connect.
1. Make sure the IRQ setting is identical on both the
modem AND the software. Modem and software
must be configured identically.
2. Make sure the phone line is working properly. Replace
the modem with a regular phone and dial the number.
If the line sounds noisy, you may have difficulty
connecting to the remote device.
Modem makes a connection but no data
appears on your screen.
1. The remote system may be waiting to receive your
data before it begins. Try pressing the ENTER key a
few times.
2. Make sure the correct data format (data bits, stop bits,
and parity bits) and flow control (RTS/CTS) are being
used.
3. Make sure the correct terminal emulation mode is
being used.
High pitch tone is heard whenever you answer
the phone.
1. Make sure Auto-Answer is turned off. Your modem
is factory configured to NOT auto-answer. Issue
AT&F to factory reset your modem.
Modem experiences errors while
communicating with a remote modem.
1. Make sure the DTE speed is the same as the modem
connection speed when in Direct Mode.
2. Make sure the remote system and your modem use the
same communication parameters (speed, parity, etc.).
3. Make sure RTS/CTS hardware flow control is enabled
and XON/XOFF software flow control is disabled in
the communication software.
16
Modem experiences bursts of errors or
suddenly disconnects while communicating
with a remote modem.
1. Make sure Call Waiting is turned off.
2. Make sure the phone line does not exhibit excess
noise.
Section Seven - Support and Service
In the unlikely event you experience difficulty in the
use of this product, we suggest you: (1) consult the
Troubleshooting section of this guide and (2) consult with
your dealer. To obtain service for this product, follow the
Return Merchandise Authorization Procedure as outlined
in the Warranty card.
Appendix A - Specifications
Communication Std. V.90, x2, V.34+ , V.34, V.32bis, V.32, V.29,
Data Compression: V.42bis/MNP5
Error Correction:V.42/MNP2-4
Host Interface:PCI
FAX Group:Group III Send/Receive Standard
FAX Command set: EIA/TIA-578 Service Class 1
Speakerphone:Full-Duplex
Transmit level:-10dBm
Receiver sensitivity:-36dBm
UART:16550 compatible
Data format:300-115200 bps (8N1, 7E1, 7E2, 7O1, 7O2)
Power:0.75 W
Temperature:0-55 degrees C (operating); -20 to 80 de-
This equipment complies with Part 68 of the FCC Rules. On this
equipment is a label that contains, among other information, the
FCC registration number and Ringer Equivalence Number (REN)
for this equipment. You must, upon request, provide this information to your telephone company.
If your telephone equipment causes harm to the telephone
network, the Telephone Company may discontinue your service
temporarily. If possible, they will notify in advance. But, if
advance notice isn’t practical, you will be notified as soon as
possible. You will be informed of your right to file a complaint with
17
the FCC.
Your telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect proper
operation of your equipment. If they do, you will be notified in
advance to give you an opportunity to maintain uninterrupted
telephone service.
The FCC prohibits this equipment to be connected to party lines
or coin-telephone service.
In the event that this equipment should fail to operate properly,
disconnect the equipment from the phone line to determine if it is
causing the problem. If the problem is with the equipment,
discontinue use and contact your dealer or vendor.
The FCC also requires the transmitter of a FAX transmission be
properly identified (per FCC Rules Part 68, Sec. 68.381 (c) (3)).
FCC Class B Statement
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy, and if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and the re-
ceiver
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected
• Consult the dealer or an experienced radio / TV technician for
help
Notice: 1) Shielded cables, if any, must be used in order to comply
with the emission limits. 2) Any change or modification not
expressly approved by the Grantee of the equipment authorization
could void the user’s authority to operate the equipment.
DOC Compliance Information
NOTICE: The Canadian Department of Communications label
identifies certified equipment. This certification means that the
equipment meets certain telecommunications network protective,
operational and safety requirements. The Department does not
guarantee the equipment will operate to the user’s satisfaction.
18
Before installing this equipment, users ensure that it is permissible
to be connected to the facilities of the local telecommunications
company. The equipment must also be installed using an acceptable method of connection. The customer should be aware that
compliance with the above conditions may not prevent degradation
of service in some situations.
Repairs to certified equipment should be made by an authorized
Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical
ground connections of the power utility, telephone lines and internal
metallic water pipe system, if present, are connected together. This
precaution may be particularly important in rural areas.
Caution: Users should not attempt to make such connections
themselves, but should contact the appropriate electric inspection
authority, or electrician, as appropriate.
NOTICE: The Load Number (LN) assigned to each terminal device
denotes the percentage of the total load to be connected to a
telephone loop which is used by the device, to prevent overloading.
The termination on a loop may consist of any combination of
devices subject only to the requirement that the sum of the Load
Numbers of all the devices does not exceed 100.
UL Notice
Caution: This internal modem adapter is to be installed in UL Listed
computers only. Always disconnect the modem adapter from the
telephone system during installation or when the covers are
removed from the computer.
Man152 First EditionGZ/DR/DGR - Version 1.0
19
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1 point = 1 manual.
You can buy points or you can get point for every manual you upload.