Tainet DT-128 Series User manual

TAINET
DT-128
High-Speed Network Termination Unit
USER'S MANUAL
The Professional Partner
TAINET COMMUNICATION SYSTEM CORP.
Headquarters:
No. 25, Alley 15, Lane 120, Sec. 1.
Nei-Hu Rd,Taipei 114, Taiwan
TEL: [phone]
FAX: [phone]
http://www.tainet.net
Beijing Branch:
3F, A Building, 113 Zhi Chun Lu, HaiDian
District, Beijing, China
Zip Code: 100086
TEL: [phone]~87
FAX: [phone]
V1.8 07008-00013 2004/03/24

CONTENTS
CHAPTER 1 : THE TAINET DT-128 SERIES NTU...................................................... 2
1.1 Description .................................................................................................. 2
1.2 Technical Specifications ............................................................................. 2
1.3 Ordering Information .................................................................................. 3
CHAPTER 2 : INSTALLATION ...................................................................................... 6
2.1 Description .................................................................................................. 6
2.2 Unpacking ................................................................................................... 6
2.3 Site Requirements ....................................................................................... 6
2.4 Site Selection............................................................................................... 7
2.5 AC Electrical Outlet Connection................................................................. 7
2.6 Connecting with 2-wire/4-wire Line........................................................... 7
CHAPTER 3 : FRONT PANEL LCD AND MENU-DRIVEN..................................... 10
3.1 The Front And Rear Panels ....................................................................... 10
3.2 Operating The DT-128 .............................................................................. 11
3.3 The Menu Tree .......................................................................................... 13
3.4 Detailed Description Of The Menu Tree................................................... 15
3.4.1 Test Menu......................................................................................... 15
3.4.2 Config NTU Menu ........................................................................... 16
3.4.3 Config DTE Menu............................................................................ 17
3.4.4 Profile Menu..................................................................................... 18
3.5 Operating The DT-128N ........................................................................... 19
CHAPTER 4 : GENERAL INFORMATION AND FEATURES ................................ 21
4.1 Preview...................................................................................................... 21
4.2 2W/4W Uncondition Twisted Line ........................................................... 21
4.3 LT Mode VS. NT Mode............................................................................ 21
4.4 Synchronous VS. Asynchronous............................................................... 22
4.5 Configuration Profile Set-Up .................................................................... 22
4.5.1 Factory Profile .................................................................................. 22
4.6 Remote Configuration ............................................................................... 23
CHAPTER 5 : MAINTENANCE .................................................................................... 25
5.1 Description ................................................................................................ 25
5.2 Instruments ................................................................................................ 25
5.3 Periodic Maintenance................................................................................ 25
5.4 Troubleshooting ........................................................................................ 25
5.5 Return Procedure....................................................................................... 25
APPENDIX I : PARAMETER TABLE........................................................................... 26
APPENDIX II: DT-128 DTE INTERFACE DB-25 DIP ASSIGNMENT TABLE........... 28
APPENDIX III: G.703 64KBPS CO-DIRECTIONAL INTERFACE APPLICATION .. 29
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INFORMATION TO THE USER
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device. Pursuant to the Part 15 of FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and if not installed and used in accordance with the instructions may cause
harmful 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 receiver.
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.
This booklet is available from the US government Printing Office, Washington, DC 20402,
Stock NO. 004-000-00345-4.
The shielded RS-232 cable is to be used in order to ensure compliance with FCC Part 15, and
it is the responsibility of the user to provide and use shielded RS-232 cable from NTU to
personal computer.
CAUTION: Any changes of modifications not expressly approved by the grantee of this
device could void the user's authority to operate the equipment.
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CHAPTER 1
THE TAINET DT-128 SERIES NTU
CONTENT
1.1 Description
1.2 Technical Specifications
1.3 Ordering Information
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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
CHAPTER 1 : THE TAINET DT-128 Series NTU
1.1 Description
•TAINET DT-128 and DT-128N are high speed, synchronous and asynchronous, full
duplex Network Termination Unit (NTU). The DT-128 is a stand-alone type for desktop
use. However, the DT-128N is designed as a rack-mounted type allowing you to install
up to 16 NTU cards in one TRS32 shelf.
•DT-128 and DT-128N fully comply with ANSI T1.601 using 2B1Q line coding and echo
cancellation technique for full duplex operation at synchronous 2400bps to 128Kbps or
asynchronous 300bps to 38.4Kbps transmission rate over a 2/4-wire unconditioned
unloaded twisted line.
•DT-128 and DT-128N provide an operating range up to 6.0 Km over a 26-gauge wire or
up to 7.8 Km over a 24-gauge wire in 2/4-wire mode.
•DT-128 and DT-128N provide internal or external clock flexible use in different
applications option in LT mode.
•DT-128 and DT-128N also provide diagnostic capability including Analog loopback,
Digital loopback (Local and Remote), and BER TEST for troubleshooting both NTU and
the line.
•Support remote configuration function via D channel.
•Front panel configuration, monitoring via a 2x16 characters LCD and six pieces of
rubber switches.
•DT-128 and DT-128N front panel LED indicators provide indication for PWR, DTR,
DSR, RTS, CTS, TXD, DCD, RXD, ACT and TST.
•DT-128N is also associated with TAINET MANAGER for Windows NMS, a standard
feature, which commands pass forward to control unit.
1.2 Technical Specifications
•DT-128 and DT-128N NTU fully comply with ANSI T1.601.
•DTE Speed
(1) Synchronous : 128K/64K/38.4K/19.2K/9600/4800/2400 bps
(2) Asynchronous : 38.4K/19.2K/9600/4800/2400/1200/600/300 bps
•Line Requirement : 2 wire or 4 wire unconditioned unloaded twisted Line
•Operating Range
2/4-wired Mode
(1) Up to 6.0 Km over 26 gauge wire
(2) Up to 7.8 Km over 24 gauge wire
•Line Coding : 2B1Q
•Output Level : 13 or -3dBm
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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
•Line Impedance : Balanced 135Ω
•Line Interface : RJ11 Connector
•Equalization : Adaptive Equalizer
•Diagnostic Capability
(1) Analog Loopback
(2) Digital Loopback (Local or Remote)
(3) Remote Configuration
(4) BERT - Bit Error Rate Test with Test Pattern and Error Count
•Timing
LT : Internal or External clock
NT : Loopback clock
•Power Requirement : 90 ~ 265 VAC auto range, 47 ~ 63 Hz
DC Source : -36 ~ -72 VDC option (for Rack)
Dual Redundant AC or DC Power Supply option (for
Rack)
Consumption : Less than 7 Watts (Stand Alone Type)
Less than 6.5 Watts (Rack Mount Type)
Less than 110 Watts (Full Shelf Equipped)
•Operating Temperature: 0 °C ~ 50 °C
Storage Temperature: -25 °C ~ 70 °C
Relative Humidity: up to 95 % (non-condensing)
•Physical Size
(1) Stand-alone Type (DT-128) - 194 W x 60 H x 316 D mm, Weight 1.5kg
(2) Rack-mounted Type (DT-128N) - 220 W x 26 H x 328 D mm, Weight 0.6kg
(3) Shelf (TRS32 RACK) - W - 19", H - 5RU, D - 380 mm, Weight 8 kg
•DTE Interface
(1) EIA RS-232D, ITU-T V.28, 25pin D type, female
(2) EIA RS-530 25pin D type, female
(3) V.35 - 34 pin, female
(4) X.21/V.11 - 15pin, female
(5) G.703 64Kbps co-directional
1.3 Ordering Information
•DT-128 High speed 128Kbps NTU (stand alone type)
•DT-128N Rack mount type DT-128
•NMC32 NMS Control unit
•TRS32 19" width rack for up to 16 DT-128N cards
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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
•PW-132A 90 ~ 265 VAC 130W power unit for rack
•PW-132D -36 ~ -72 VDC 130W power unit for rack
•TAINET MANAGER Network Management System for DT-128N
for Windows
•Interface option V.35, V.24/RS-232, RS-530, X.21/V.11, G.703 64Kbps
co-directional
•CSR NMS control unit with LAN and PPP interface
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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
CHAPTER 2
INSTALLATION
CONTENT
2.1 Description
2.2 Unpacking
2.3 Site Requirements
2.4 Site Selection
2.5 AC Electrical Outlet Connection
2.6 Connecting With 2-Wire/4-Wire Line
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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
CHAPTER 2 : INSTALLATION
2.1 Description
This chapter provides the information needed to install the DT-128 NTU and to ensure that it
is working properly. You may obtain more information about this subject for the DT-128N
from the User's Manual of the TAINET TRS32 Shelf.
2.2 Unpacking
Save the carton and protective packing material in which your DT-128 NTU was shipped; you
might need them for repackaging if you have to store or ship the NTU in the future. The
following items are shipped with your DT-128 NTU:
• One DT-128 NTU User's Manual.
• One 7-feet (2.13m) modular telephone cable for connection to an RJ11 4-pin jack.
• One 6-pin box for twisted line application.
Rough handling during shipping causes most early NTU failure; after you unpack the NTU,
check carefully for shipping damage. Contact the shipper if you notice any damage.
Direct any additional questions about damaged or missing parts to the nearest sales
representative, or contact: #[email protected].
2.3 Site Requirements
The FCC requires telecommunications equipment to withstand electrical surges which may
result from lightning strikes; TAINET NTUs meet the requirements set forth by the FCC. The
following procedure outlines some common practices which can minimize the risk of damage
to computer equipment from electrical surges.
1) Make sure the electrical service in your building is properly grounded as described in
article 250 of the National Electrical Code (NEC) handbook.
2) Verify that a good copper wire of the appropriate gauge, as described in Tables 250-94/95
of the NEC Handbook, is permanently connected between the electrical service panel in
the building and a proper grounding device such as:
)A ground rod buried outside the building at least 8 feet (2.44 meters) deep in the earth.
)Several ground rods, connected together, buried outside the building at least 8 feet
(2.44 meters) deep in the earth.
)A wire (see tables 250-94/95 of the NEC handbook for gauge) that surrounds the
outside of the building and is buried at least 2.5 feet (.76 meters) deep in the earth.
Note: The three grounding devices described above should be firmly placed in the
earth. Soil conditions should not be dry where the device is buried.
)A metal water-supply pipe connected to the water main in the street or a metal cased
well. The water pipe used must not have plastic piping between the ground connection
and the water main (or the well). The connection should be made where the pipe
enters the building. The water meter must be shunted by a copper strap.
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