Telenetics Network Card MOT202TRM User Manual

MOT202TSA/MOT202TRM  
Modem User’s Guide  
0049-0119-000, Rev. A  
 
Contents  
CHAPTER 3 LEDS AND CONTROLS........................................... 21  
FRONT PANEL LEDS ............................................................................. 21  
FRONT PANEL TEST SWITCH ................................................................. 22  
CHAPTER 4 TROUBLESHOOTING ............................................. 25  
LOCAL MODEM TEST ............................................................................ 25  
LINE AND MODEM TEST........................................................................ 26  
CHAPTER 5 SPECIFICATIONS..................................................... 27  
GENERAL............................................................................................... 27  
DIMENSIONS AND WEIGHT.................................................................... 28  
TEMPERATURE RANGE.......................................................................... 28  
POWER REQUIREMENTS ........................................................................ 28  
INTERFACE PIN ASSIGNMENTS .............................................................. 29  
DTE Connector - EIA RS-232-C ...................................................... 29  
Telco Connector ............................................................................... 29  
APPENDIX A COMPLIANCES....................................................... 31  
APPENDIX B LIMITED PRODUCT WARRANTY ..................... 33  
APPENDIX C, RMA PROCEDURE................................................ 35  
Page iv  
 
Chapter 1  
Introduction  
he Telenetics MOT202TSA standalone modem and  
MOT202TRM rack-mount modem are Frequency Shift Keyed  
T(FSK) modems designed for asynchronous half-duplex  
communication on 2-wire private line circuits or full-duplex  
communication on 4-wire private-line circuits.  
Summary of Key Features  
The following list summarizes the modems key features.  
Bell 202T compatible  
Operates over voice-grade leased lines or private lines  
0 to 1200 bps operation for unconditioned line.  
0 to 1800 bps operation for conditioned line (C2).  
Point-to-point or point-to-multipoint polling network  
4-wire full-duplex or 2-wire half-duplex leased-line configuration.  
Analog Loopback Test, Digital Loopback Test, Self Test, and Test  
Pattern Transmit.  
LED displays for power, RS-232 control, data status, and test  
mode.  
Page 5  
 
Introduction  
Models  
The Telenetics modem is available in two models:  
The MOT202TSA is a desktop modem.  
The MOT202RTM is a rack-mount modem that installs into a  
standard 19-inch rack.  
In this manual, the term modemwill be used to refer to both models  
collectively. If information pertains to one model only, that model will  
be identified by its model number.  
Using This Manual  
This manual contains all the information you need to install, configure,  
use, and test your modem.  
Chapter 1 contains general information on what the 202T modem  
does, contents of this manual, and contact information for  
Telenetics.  
Chapter 2 describes how to install and configure the modem.  
Chapter 3 provides general operating procedures.  
Chapter 4 provides troubleshooting procedures.  
Chapter 5 lists the modems specifications.  
Page 6  
 
Contact Information  
Contact Information  
For more information about TeleneticsMOT202TSA and  
MOT202TRM modems, or other Telenetics solutions, please contact us  
using any of the following methods.  
Voice Calls  
We welcome your calls at (949) 455-4000 Monday  
through Friday, from 8:00 am to 5:00 pm Pacific Time.  
Fax Number  
You can also send your requests for information to our  
24-hour fax number: (949) 455-4010.  
E-mail  
If you prefer, you can send information requests to our  
24-hour e-mail address: [email protected].  
Website  
Our website contains valuable information about our  
products. We encourage you to visit us online at  
Page 7  
 
Introduction  
NOTES  
Page 8  
 
Chapter 2  
Installing the Modem  
his chapter describes how to install the modem.  
T
Site Preparation  
The location where you install your modem should be:  
Within six feet of a 115 or 230 VAC grounded outlet not controlled  
by a wall switch  
No more than 50 feet from the data terminal equipment  
Away from extremes of temperature, humidity, and appreciable  
shock.  
Be sure that there is a 4-inch minimum space at the  
back of the modem for signal line and interface cable  
clearance.  
Note:  
Unpacking Your Hardware  
Your package should include at least one MOT202TSA or  
MOT202TRM modem, one RJ-45 jack-to-4 wire leased line cable, and  
this Installation Guide. If your package contents are damaged or  
missing, please contact your place of purchase immediately.  
Page 9  
 
Installation  
Additional Items You Need  
To use your modem, you need the following additional items:  
All users: an RS-232 cable to connect a data terminal. The cable  
must conform to the pin assignments shown on page 29.  
Standalone modem users: a two- or four-wire transmission line or  
leased line and power supply.  
Rack-mount modem users: a modem rack and an available slot in  
the rack for installing the modem.  
Hardware Overview  
Figures 2-1 and 2-2 show the front and back modem panels.  
Figure 2-1. Front Panel  
Figure 2-2. Back Panel  
Page 10  
 
Configuring the Modem  
On the front panel of the modem, there are:  
One Power LED and six status LEDs (see page 21)  
A rotary test switch (see page 22)  
On the back panel of the MOT202TSA modem, there are:  
A power cord or power input connector  
A power switch for turning the modem on and off  
A fuse, 3/8 amp, 250 Volt, slow-blow  
A DB25 female connector for accommodating a DTE device  
An RJ-45 connector for connecting to a communications line  
Configuring the Modem  
The modem obtains some operating characteristics from jumper  
settings. The default jumper settings are for common 4-wire full-duplex  
applications. To reconfigure the modem for 2-wire half-duplex and  
special applications, you must change the default jumper settings.  
To change jumper settings, push the two tabs on the back of the modem  
to open the modem cover and gain access to the jumper settings on the  
printed circuit board (see Figure 2-3). Then set the jumpers to the  
desired settings and replace the cover.  
Figure 2-3. Gaining Access to the Modem Jumpers  
Figure 2-4 on the next page shows the location of the modem jumpers.  
Table 2-1 on page 13 summarizes the jumper settings (default settings  
are bold).  
Page 11  
 
Installation  
Figure 2-4. Modem Jumper Locations  
Page 12  
 
Configuring the Modem  
Table 2-1. Jumper Settings  
Jumper  
S1  
Function  
Carrier Detect control  
Settings  
-33 dBm  
See Page…  
14  
-43 dBm  
Transmit level  
14  
S2  
0dBm  
-2 dBm  
-4 dBm  
-6 dBm  
-8 dBm  
-10 dBm  
-12 dBm  
-14 dBm  
2-wire  
2-wire/4-wire mode  
Call turnaround squelch  
Transmit carrier  
15  
15  
16  
16  
16  
17  
S3  
S4  
S5  
S6  
S8  
S9  
4-wire  
Enabled  
Disabled  
Control  
Constant  
Enabled  
Disabled  
Connected  
Separate  
8 ms  
Local copy  
Signal and Earth ground  
RTS-CTS delay  
33 ms  
59 ms  
219 ms  
Carrier Detect delay  
17  
17  
18  
S10  
S11  
S12  
6 ms  
23 ms  
8 ms  
159 ms  
Turnaround squelch time  
(Enabled by jumper S4)  
Soft Carrier turn off  
None  
8 ms  
26 ms  
Anti-streaming  
18  
S13  
None  
4 seconds  
7.6 seconds  
14 seconds  
28 seconds  
56 seconds  
1 bps  
Self Test or test pattern  
19  
S14 and S15  
(Tx and Rx pattern speed)  
18 bps  
37 bps  
75 bps  
150 bps  
Page 13  
 
Installation  
The jumper positions in the following sections reflect the  
Note:  
position of the jumpers on the modem board when you face  
the board as indicated in Figure 2-4 on page 12.  
Jumper S1 Carrier Detect Control  
-33 dBm (default)  
-43 dBm  
Settings:  
Jumper S1 configures the dynamic range of the modem receiver. The  
selections are either 33 dBm or 43 dBm. If the incoming signal is  
above 24 dBm, use the default 33 dBm setting. If the modem is  
operated on the network, use the 43 dBm setting.  
Jumper S2 Transmit Level  
0 dBm (default)  
-2 dBm  
Settings:  
-4 dBm  
-6 dBm  
-8 dBm  
-10 dBm  
-12 dBm  
-14 dBm  
Jumper S2 adjusts the modems transmit level. There are eight transmit  
level settings you can choose. By default, the modem uses a transmit  
level of 0 dBm.  
Page 14  
 
Configuring the Modem  
Jumper S3 2-wire/4-wire Mode  
2-wire  
4-wire (default)  
Settings:  
Jumper S3 configures the modem for 2-wire or 4-wire operation.  
When configured for 4-wire full-duplex operation, jumper S5 can  
be strapped to maintain constant carrier from the master modem to  
all slave modems at all times after the initial training. This enables  
the master modem to transmit data to the slave modems, with no  
RTS-to-CTS delay. This is the preferred operating mode when  
minimum turnaround is desired.  
When configured for 2-wire half-duplex operation, the modem  
encounters an RTS-to-CTS delay when transmitting to slave  
modems, increasing the turnaround time. Set jumper S5 to  
controlled carrier for 2-wire half-duplex operation.  
Jumper S4 Call Turnaround Squelch  
Enabled  
Disabled (default)  
Settings:  
Jumper S4 configures the modems Call Turnaround Squelch setting.  
For 2-wire, half-duplex communications, set this strap to the Enabled  
position. In this position, the receiver is inhibited for a period of time  
after the local transmitter is turned OFF. This guards against echoes  
caused by the transmission just completed. The time is determined by  
the turnaround squelch time option (jumper S11).  
For 4-wire, full-duplex communications, keep the jumper set to the  
default position of Disabled.  
Page 15  
 
Installation  
Jumper S5 Transmit Carrier  
Control (default)  
Constant  
Settings:  
Jumper S5 places the transmitter under terminal control (default) or  
turns on the transmitter continuously in a 2-wire half duplex system.  
Jumper S6 Local Copy  
Enabled  
Disabled (default)  
Settings:  
Jumper S6 must be left is the default position of Disabled when  
operating on a 4-wire network. It is also normally left in the default  
Disabled position when operating on a 2-wire network. Strapping this  
jumper as Disabled inhibits the local receiver from receiving the  
transmission of the local transmitter.  
Jumper S8 Signal and Earth Ground  
Connected  
Separate (default)  
Settings:  
Jumper S8 allows Earth GND to be tied to the modem system GND.  
Page 16  
 
Configuring the Modem  
Jumper S9 RTS-CTS Delay  
8 ms (default)  
Settings:  
33 ms  
59 ms  
219 ms  
Jumper S9 configures the modems RTS-CTS delay. Four choices for  
selecting an RTS-CTS delay are available.  
Jumper S10 Carrier Detect Delay  
6 ms (default)  
23 ms  
Settings:  
Jumper S10 configures the modems Carrier Detect turn on Delay  
timing. The delay chosen must be consistent with the Clear To Send  
delay selection of the transmitting modem and must be less than the  
CTS delay. The available delays are 6 ms (default) and 23 ms. The  
carrier detect drop out is less than 6 ms.  
Jumper S11 Turnaround Squelch Time  
8 ms (default)  
159 ms  
Settings:  
Jumper S11 is used with the call turnaround squelch option (jumper  
S4). The available times are 8 ms (default) and 159 ms.  
Page 17  
 
Installation  
Jumper S12 Soft Carrier Turn Off  
None  
Settings:  
8 ms (default)  
26 ms  
Jumper S12 configures the modem to either turn off the transmitter  
immediately upon release of Request To Send, or send a Soft Carrier  
Turn Off signal of 900 Hz for 8 or 26 ms at the end of each  
transmission.  
Jumper S13 Anti-Streaming  
None (default)  
4 seconds  
Settings:  
7.6 seconds  
14 seconds  
28 seconds  
56 seconds  
Jumper S13 lets you select an anti-streaming time or use no anti-  
streaming at all. Anti-streaming is typically used in multi-point  
applications to prevent a malfunctioning slave from occupying the line  
indefinitely.  
When anti-streaming is active, the modem can only transmit data for up  
to 56 seconds. Thereafter, the modems transmitter is automatically  
turned off. The modem then looks for an ON-to-OFF transition of  
Request To Send (RTS) before proceeding with normal operation.  
Page 18  
 
Connecting a DTE  
Jumpers S14 and S15 Self Test or Test Pattern  
1 bps  
Settings:  
18 bps (default)  
37 bps  
75 bps  
150 bps  
Jumpers S14 and S15 configures the modem for Self Test or Test  
Pattern. When the modem is in local Self Test or Test Pattern mode, it  
generates a dot test pattern. The supported baud rates are 1 bps, 18 bps,  
37 bps, 75 bps, or 150 bps.  
Connecting a DTE  
The modem back panel provides a standard, 25-pin port labeled DTE,  
which connects to an RS-232 device. The connectors for this port  
conform to the pin assignments shown under DTE Connector EIA  
RS-232-Con page 29.  
The DTE should have a cable no longer than 50 feet, with a Cinch or  
Cannon plug per DB-19604-432 plus a DB-51225-1 hood or  
equivalent.  
Connecting to a Private Line  
Communication Circuit  
The modem back panel provides an 8-pin RJ-45 connector labeled  
TELCO, which connects to a private line communication circuit. The  
connectors for this port conform to the pin assignments shown under  
Telco Connectoron page 29.  
Connecting to an AC Power Source  
The modem back panel provides an AC line cord. If the chassis ground  
is connected through the third prong of the AC power plug, a separate  
chassis ground wire is required.  
Page 19  
 
Installation  
Powering-on the Modem  
To supply power to the modem, place the POWER ON switch on the  
modem back panel to the ON position. The PWR LED on the front  
panel goes ON.  
Powering-off the Modem  
To turn off power to the modem, place the POWER ON switch on the  
modem back panel to the OFF position. The PWR LED on the front  
panel goes OFF.  
Page 20  
 
Chapter 3  
LEDs and Controls  
his chapter describes the LEDs and controls on the modem.  
Front Panel LEDs  
T
Table 3-1 describes the LEDs on the modem front panel.  
Table 3-1. Front Panel LEDs  
LED  
PWR  
TM  
Status  
ON = power is being supplied to the modem.  
ON = the rotary switch is turned to Analog or Digital  
Loopback, or the switch is in the Test Pattern transmit  
mode or Self Test mode and no error is detected.  
ON = the modem is detecting a valid carrier.  
CD  
RD  
ON = data is being received or receive data line is in a  
space condition.  
ON = the Request-to-Send line from the DTE is ON.  
ON = the Clear-to-Send line from the modem is ON.  
RS  
CS  
TD  
ON = data to be transmitted is being furnished to the  
modem.  
Page 21  
 
Troubleshooting  
Front Panel Test Switch  
The modem front panel has a five-position rotary switch that lets you  
select the modems operating mode. The five switch positions are:  
DATA use this position for normal data transmissions.  
AL (Analog Loopback) this position prepares the modem for  
testing by the local terminal device. The transmitter output of the  
modem is disconnected from the output coupling transformer and  
connected to the modem receiver input. See Figure 3-1.  
DL (Digital Loopback) this position configures the modem to  
loop back received data to the transmitter and transmit the data to  
the remote end. The RS-232-C interface to the terminal is not  
active during this test. See Figure 3-2.  
ST (Self Test) this position inhibits the modem from  
transmitting and receiving data on the COMM LINE. The RS-232-  
C interface to the terminal is not active during this test. See Figure  
3-3.  
The test pattern (dot pattern) passes through the transmitter, loops  
back into the receiver, is demodulated, and is checked for errors. If  
errors occur, the TM LED turns OFF and remains OFF for a period  
of time that depends on the pattern generator baud rate.  
In Analog Loopback and Self Test modes, the received analog data  
is buffered, amplified by 16 dB (if output level is set to 0 dB), and  
routed out on the transmit analog pair.  
TTP (Transmit Test Pattern) this setting forces the transmitter  
on and transmits data from the test generator to the COMM LINE.  
The RS-232-C interface lines (RTS, CTS, and Transmit Data) to  
the transmitter are not active. See Figure 3-4.  
The TM LED goes ON when the receive data is good. If there are  
errors, or if the received data does not compare with the  
transmitted data, the TM LED goes off. The RS-232-C interface  
lines to the receiver are active during this mode.  
Page 22  
 
Front Panel Test Switch  
Figure 3-1. Analog Loopback Test  
Local Modem  
Analog LoopBack Mode  
Remote Modem  
Data Mode  
RXD  
RECEIVER  
TRANSMITTER  
Amplifier  
DTE  
DTE  
PAD  
TXD  
TRANSMITTER  
RECEIVER  
4-Wire Telephone Line  
t  
Local Modem  
Local Digital LoopBack Mode  
Remote Modem  
Data Mode  
RECEIVER  
TRANSMITTER  
DTE  
DTE  
TRANSMITTER  
RECEIVER  
4-Wire Telephone Line  
Figure 3-2. Digital Loopback Test  
Page 23  
 
Troubleshooting  
Modem  
Self Test Mode  
TEST PATTERN  
ERROR CHECK  
TRANSMITTER  
TX  
RX  
PAD  
DTE  
Amplifier  
RECEIVER  
TM  
4-Wire Telephone Line  
Figure 3-3. Self Test  
Remote Modem  
Receive Test Pattern Mode  
Local Modem  
TM  
Send Test Pattern Mode  
SPEED SELECT  
TEST  
PATTERN  
ERROR  
RECEIVER  
DTE  
TRANSMITTER  
DTE  
CHECK  
2-Wire Telephone Line  
Figure 3-4. Transmit Test Pattern  
Page 24  
 
Chapter 4  
Troubleshooting  
his chapter describes troubleshooting procedures you can use in the  
unlikely event you encounter a problem with your modem.  
T
Local Modem Test  
The local modem test verifies the local modems transmitter, receiver,  
and connection to the locally attached DTE. This test can be run either  
by generating a data pattern from the locally attached DTE or by having  
the modem generate a test pattern.  
The following procedure describes how to run the local modem test  
using a locally attached DTE to generate a data pattern.  
1. Using the front panel test switch, place the modem in Analog  
Loopback mode.  
2. Turn on the Request To Send line.  
3. Use the locally attached DTE to transmit the data pattern and check  
for data errors on the Receive Data line.  
The following procedure describes how to run the local modem test  
using the modem test pattern instead of a data pattern originated by the  
local DTE.  
1. Using the front panel test switch, place the modem in Self Test  
mode.  
2. The TM indicator should turn ON. If the indicator turns OFF or  
flashes, errors are occurring.  
Page 25  
 
Specifications  
Line and Modem Test  
The line and modem test verifies the local modem, the remote modem,  
and the communications line between them. With this test, the local  
modem loops back received data to the transmitter and transmits the  
data to the remote modem. These characters can originate either from a  
locally attached DTE or by having the modem generate a test pattern.  
The following procedure describes how to run the line and modem test  
using a locally attached DTE to generate a data pattern.  
1.  
2.  
Place the remote modem in Digital Loopback mode.  
Place the local modem in Data mode and transmit a data pattern.  
Check for data errors on the Receive Data line  
The following procedure describes how to run the line and modem test  
using the modem test pattern instead of a data pattern originated by the  
local DTE.  
1.  
2.  
Place the remote modem in Remote Test mode.  
Place the local modem in Remote Self Test mode. The TM LED  
should turn ON and remain ON if the data is error free.  
Page 26  
 
Chapter 5  
Specifications  
his chapter lists the specifications for the modem.  
General  
T
2-wire half-duplex or 4-wire full-duplex  
private line operation.  
Operation:  
0-1200 bps asynchronous on worst case  
line. 0-1800 asynchronous on C2  
conditioned line  
Data rate:  
Phase coherent. Frequency Shift Keyed  
(FSK)  
Modulation:  
Carrier frequencies:  
Line impedance:  
Mark 1200 Hz 1%  
Space 2200 Hz 1%  
600 ohms 10% transformer coupled and  
transient protected.  
Selectable from 0 to 14 dBm, in 2 dB  
steps.  
Transmitter output  
level:  
8, 33, 59, or 219 ms  
RTS-CTS delay:  
Carrier Detect delay:  
Digital interface:  
Package:  
6 or 23 ms OFF-to-ON, 6 On-to-OFF  
EIA RS-232-C and CCITT V.24.  
Standalone, UL approved.  
8 ms or 159 ms  
Turnaround squelch:  
Anti-streaming:  
Option to turn transmitter OFF after  
selected time, even if RTS is ON  
Page 27  
 
Specifications  
Test features:  
Self Test, Analog Loopback, Digital  
Loopback, and Test Pattern Transmit  
Dimensions and Weight  
Width:  
Length:  
Height:  
7.00 inches (17.8 cm)  
9.60 inches (24.4 cm)  
2.25 inches (5.7 cm)  
Temperature Range  
Operating:  
Storage:  
-40 to +85 degrees Celsius  
-40 to +85 degrees Celsius  
Humidity range:95% relative, non-condensing  
Power Requirements  
115 VAC + or 10%: 50/60 Hz  
230 VAC + or 10%: 50/60 Hz  
12 to 60 VDC  
For applicable models.  
Page 28  
 
Interface Pin Assignments  
Interface Pin Assignments  
DTE Connector - EIA RS-232-C  
Pin  
1
RS-232C Circuit  
CCITT V.24 Circuit  
Function  
AA  
BA  
BB  
CA  
CB  
CC  
AB  
CF  
101  
103  
104  
105  
106  
107  
102  
109  
Protective Ground  
Transmitter Data  
Receive Data  
2
3
4
Request to Send  
Clear to Send  
5
6
Data Set Ready  
Signal Ground  
7
8
Data Carrier Detect  
+12 Volts Test Only  
-12 Volts Test Only  
Analog Loopback  
9
10  
25  
All interfaces on the RS-232-C digital connector conform to  
the requirements of EIA-RS-232-C.  
Note:  
Telco Connector  
Pin  
Description  
4, 5  
2-wire mode: transmit/receive pair.  
4-wire mode: transmit pair.  
3, 6  
Receive pair for 4-wire mode.  
Polarity of transmit pair or receive pair is not significant. Remaining  
pins are not used.  
Page 29  
 
Specifications  
NOTES  
Page 30  
 
Appendix A  
Compliances  
FCC Rule  
This device complies with Part 15A of the FCC Rules. Operation is subject to  
the following two conditions: (1) this device may not cause harmful  
interference, and (2) this device must accept any interference received,  
including interference that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a Class  
A digital device, pursuant to Part 15A 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 receiver.  
Connect the equipment to an outlet on a circuit other than the one to  
which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
If none of these actions resolves the problem, consult your distributor or an  
experienced radio/television technician for additional suggestions.  
Additionally, Section 15.838, paragraph d), of the FCC Rules and Regulations  
states: Where special accessories, such as shielded cables, are required in  
order to meet FCC regulations, shielded cables must be used with this  
equipment. Operation with non-approved equipment or unshielded cables is  
likely to result in interference to radio and TV reception. The user is cautioned  
that changes and modifications to this equipment without the approval of the  
manufacturer could void the users authority to operate this equipment.  
Page 31  
 
Compliances  
Department of Canada Statement  
This Class A digital apparatus meets all requirements of the Canadian  
Interference-Causing Equipment Regulations.  
Cet appareil numerique de la classe A respecte toutes les exigences du  
Reglement sur le materiel brouilleur du Canada.  
Page 32  
 
Appendix B  
Limited Product  
Warranty  
Telenetics warrants that the Product sold will be free from defects in  
material and workmanship and perform to Telenetics' applicable  
published specifications for a period of 18 months from the date of  
delivery to Customer or 12 months from placement into service,  
whichever occurs first. The liability of Telenetics hereunder shall be  
limited to replacing or repairing, at its option, any defective Products  
which are returned F.O.B., Telenetics' facility, Lake Forest, California  
(or, at Telenetics' option refunding the purchase price of such products).  
In no case are Products to be returned without first obtaining permission  
and a customer return order number from Telenetics. In no event shall  
Telenetics be liable for any consequential or incidental damages.  
Products which have been subject to abuse, misuse, accident, alteration,  
neglect, unauthorized repair or installation are not covered by the  
warranty. Telenetics shall make the final determination as to the  
existence and cause of any alleged defect. No liability is assumed for  
expendable items such as lamps and fuses. No warranty is made with  
respect to custom products or Products produced to Customer's  
specifications except as specifically stated in writing by Telenetics in the  
agreement for such custom products.  
This warranty is the only warranty made by Telenetics with respect to  
the goods delivered hereunder, and may be modified or amended only by  
a written instrument signed by a duly authorized officer or Telenetics  
and accepted by Customer.  
This warranty and limitation extends to customer and to users of the  
product and is in lieu of all warranties with respect to the product  
whether express, implied, or statutory, including without limitation the  
implied warranties of merchantability and fitness for a particular  
purpose.  
Page 33  
 
Limited Product Warranty  
NOTES  
Page 34  
 

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