XL-GDB101V V.35 over 2-wire G.SHDSL
XL-GDB101S RS-449/EIA-530 over 2-wire G.SHDSL
XL-GDB101F Ethernet over 2-wire G.SHDSL
XL-GDB101E E1 over 2-wire G.SHDSL
XL-GDB102E E1 over 4-wire G.SHDSL
XL-GDB101T T1 over 2-wire G.SHDSL
XL-GDB102T T1 over 4-wire G.SHDSL
This Manual is for S/W ver. 3.14 or above
Manual version 1.01
XtendLan XL-GDB series User’s Guide
XL-GDB SHDSL series Executive Summary
Today’s bandwidth requiremenrt applications, such as Internet access, remote LAN access,
teleconferencing, workgroup and data sharing, telecommuting and numerous varieties of digital
video services and the increasing volume of traditional data, are driving demand for high-speed
data network access.
We, XTENDLAN, design, develop and market transmission systems based on Digital
Subscriber Line (DSL) technology for copper wire plant. They support all contemporary data
rates, from 64kbps to multi-megabit symmetric and asymmetric transmission for voice, video
and data communications over a twisted copper pair. Our access systems link enterprise LANs
and Network Service Providers over private and public networks across the local loop, the
connection between the customer and the first network node.
Deploying in nearly any symmetric application requiring bandwidths from 192kbps to 2.3Mbps,
G.SHDSL is poised for the best cost-effective solution for business-based applications such as
Internet access and remote LAN access. By adapting G.SHDSL, Small to Medium Enterprises
(SME) no longer afford the expensive enterprise data solutions such as T1/E1. XL-GDB offers
Telcom service providers the best cost-effective solution for immediate implementation of
replacing T1/E1 leased line.
XL-GDB provides full duplex capability of supporting selected symmetric user data rates of T1, E1
or n x 64 kbit/s (range from 192 kbit/s to 2 304 kbit/s) leased line services or Ethernet interface
extension using a Trellis Coded Pulse Amplitude Modulation (TCPAM) line code over one
non-loaded two-wire metallic cable pair. The line speed for transmitted and received data shall be
multiple for lengthening the transmission distance. These selectable line rates empower Telecom
to create high-bandwidth service offerings or select the proper speed for distance-sensitive
deployments, thereby deploiting the high-bandidth efficiently and fitting subscribers’ needs
simutaneously.
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XtendLan XL-GDB series User’s Guide
Chapter 1: Product Description
1.1 Introduction
The XL-GDB SHDSL access system provides high-speed data access over single-pair copper
wires. It can transmit up to 2.304 Mbps V.35 or Ethernet signal without a repeater for more than
7km (24 AWG line) at a Bit Error Rate of less than 10
the XL-GDB SHDSL network access system allows fiber quality transmission on a single pair of
copper wire. Using lower gauge larger copper wire may allow you to attain greater
distances.
1.2 Product Interaction
-7
. Using SHDSL transmission technology,
XL-GDB desktop SHDSL modem that is part of the XtendLan SHDSL access system. Used in
conjunction with the XL-GDB shelf type CO (Central Office) line card or desktop SHDSL modem,
the unit provides repeater less data transport of up to 2.304 Mbps, over a single pair of
unconditioned copper wire. Also models with 2-pair transmitions provide rates up to 4.096 Mbps.
The rate is automatically adjusted to synchronize at specified rates, corresponding to the distance
between the local and remote units. For instance, under the E1 transmission specification, the
data rate is software selectable at any of the available Nx64 kbps rates where N is from 3 to 32.
(see chart 1, ).
0.5 mm 3.6km 3.9 km 4.8km 5.1km 5.8km 6.3km 7.4km 8.0km 8.0km 8.0km
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XtendLan XL-GDB series User’s Guide
1.2.1 Operation
Figure 1.1 XL-GDB with external AC power architecture
The XL-GDB receives its power from the AC power source via an AC adapter provided by
XtendLan. In E1 or Fractional E1 mode (also in T1 or Fractional T1 mode), the local equipment
(i.e.: router or PBX) supplies data at full or fractional E1 speed to the G.703 data port of the
XL-GDB. The XL-GDB produces a digitized data stream, which is transmitted over the single
copper pair to the line port of its associated XL-GDB line interface card.
The XL-GDB interface card then directs the data stream to the central office switch or other central
office equipment for transmission to its destination. Payload rate can be automatically adjusted
downwards until it finds the highest speed it can sync to the remote unit, thereby maximizing the
rate and reach. At the central office site, manual rate selection can be performed. It has to base on
what fixed rate service is desired. Utilizing the V.35 or 10/100Base-TX data port, the XL-GDB
SHDSL system can support un-channelized data rates up to 2.304 Mbps.
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XtendLan XL-GDB series User’s Guide
1.2.2 System Interface
The XL-GDB system supports four high-speed digital interfaces:
• V.35, model XL-GDB101V
• RS-449/EIA-530, model XL-GDB101S
• Ethernet Remote Bridge (10/100 BaseT Port), model XL-GDB101F
• E1 (G.703), model XL-GDB101E and XL-GDB102E
• T1 , model XL-GDB101T and XL-GDB102T
Configurable items vary depending on the type of interface being used. System alarms,
diagnostics, and transmission line history will also differ depending on the interface type.
• Data Rate: nx64 + ix8 Kbps, 1<=n<=36 and 0<=i<=7,64 ~ 2312 Kbps.
• Symbol Rate: (Data rate+8000)/3 symbol/sec.
• Modulation Method: 16-TCPAM, G.SHDSL
• Impedance: 135 ohms.
1.2.2.1 V.35
The XL-GDB101V supports a V.35 interface with the following characteristics:
• The I/O connectors: The pin lists for the interface connectors appear in Appendix A.
1.2.2.2 Ethernet Remote Bridge
The XL-GDB101F provides an Ethernet Remote Bridge interface. The Ethernet Remote Bridge
(IEEE standard 802.3/802.3u) provides one port connected to an Ethernet LAN running at
10/100 Mbps and the DSL port connected to the WAN at up to 2.304 Mbps. The bridge allows
an individual Ethernet computer or an Ethernet LAN to connect to the network through the
XL-GDB. in addition, it also has following features:
• Operate as a self-learning bridge specified in the IEEE 802.1d full protocol transparent
bridging function.
• Supporting up to 4096 MAC learning addresses.
• Supporting Bridge filter function
1.2.2.3 EIA-530/RS-449
The XL-GDB101S supports both RS-449 and EIA-530. These two interfaces have the same
characteristics, which listed below: Both RS-449 and EIA-530 are synchronous, high-speed digital
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XtendLan XL-GDB series User’s Guide
type interface. It uses multiple-wire to carry data and control signals. RS-449 and EIA-530 have
two timing signals produced by the DCE andsupplied to the DTE. The pin lists for the interface
connectors appear in Appendix A. RS-449 interface uses the EIA-530 interface module in
combination with a
converter cable, which adapts the DB25 connector to DB37 connector.
1.2.2.4 E1 (G.703)
The G.703 (E1) interface uses one pair to carry digital data. This interface transfers data at full
E1 rate of 2.048 Mbps or at any available Fractional E1 rate. The E1 clock signal is either
synchronized to the network (CO) or recovered by the CPE. The detailed features of E1 are:
• Bit Rate: Nx64Kbps, 1<=N<=32,192 ~ 2048Kbps.
• Frame Format: UNFRAMED or Structured FRAME and selectable with FAS,FAS+CRC
and UNFRAME mode.
• Impedance: 120 ohms & 75 ohms.
• Line Code: HDB3 (High Density Bipolar of Order 3)
XL-GDB101E working over 2 wires (1-pair). XL-GDB102E is able to combine 4 wires (2-pairs) to
extend transmition distance.
1.2.2.5 T1
The T1 interface uses one pair to carry digital data. This interface transfers data at T1 rate of 1.536
Mbps or at any available Fractional T1 rate. The T1 clock signal is either synchronized to the
network (CO) or recovered by the CPE.
• Bit Rate: Nx64Kbps, 1<=N<=24,192 ~ 1544Kbps.
• Frame Format: SF, ESF or UNFRAMED selectable.
• Impedance: 100 ohms
• Line Code: AMI or B8ZS selectable.
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XtendLan XL-GDB series User’s Guide
1.3 Physical Description
XL-GDB has for user’s manual operation from LCD panel. Device is housed in a plastic and metal
enclosure. It is 203 mm long, 198 mm wide, 36 mm high, and weighs approximately 0.9 Kg.
1.4 System Interaction
You interact with your system using a terminal or PC connected to the CID port;you can select a
desired function from the system’s multi-level menu structure. That function enables you to either:
Define or change an operating parameter of the system or, display the status and alarm of the
system.
1.4.1 External PC Interaction
The rear panel of the XL-GDB includes an RS-232 port marked CID for connection to a
terminal at baud rate of 9600, no parity, 1 stop bit and 8 bits. When performing CRC and
QRSS tests from supervisory port, the connection between the external PC and the SHDSL
unit must always be presented. The tests will be terminated when the connection is removed.
Chapter 5 contains detailed supervisory port operating directions.
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XtendLan XL-GDB series User’s Guide
Chapter 2: System Overview
2.1 General
The following section describes the XL-GDB access system, DSL transmission, performance
monitoring, and configuration, alarm management, diagnostics and common applications.
2.2 System Description
The typical XL-GDB SHDSL access system consists of a XL-GDB at the customer site interfacing
with a XL-GDB line card at the central office over a Symmetric Digital Subscriber Line
transmission line. The system transmits data symmetrically, at the same rate in both directions,
over one pair of copper wires. XL-GDB allows existing and new telephone companies to
expeditiously and economically providing this high-speed access to their customers. In order to
satisfy increasing demand for high data rate services, XL-GDB provides transmission over a
single copper pair more than doubling the transmission capacity of the existing copper plant. The
XL-GDB single-pair SHDSL access system maximizes network performance and provisioning
flexibility by providing automatic rate/reach adjustment at the various symmetric data rates (see
chart 1). XL-GDB is configured and managed locally via a VT-100 type Terminal connected to the
unit through the CID port on the rear of the unit. It can also be configured and managed remotely
via a terminal connected to the far-end XL-GDB.
2.3 SHDSL Transmission
Today’s bandwidth-hungry applications such as Internet access, remote LAN access,
teleconferencing, workgroup and data sharing, telecommuting and numerous varieties of digital
video services are driving today’s demand for high-speed data network access. These content rich
applications have put extraordinary stress on that vital connection between the customer and the
first network node… the local loop. To address this need for higher bandwidth and to minimize the
bottleneck at the local loop, the telecommunications industry has developed a set of new
technologies, the most significant of which is Digital Subscriber Line (DSL) transmission. Many
types of DSL have been developed for various applications. XtendLan SHDSL address both the
need for higher bandwidth and the efficient use of existing copper by combining the lat est SHDSL
technology to transmit and receive traffic from 64kbps to 2.304 Mb/s and up to 6,300 meters while
using only one-pair of 24 AWG copper wire. Because only one pair of copper wire is needed with
SHDSL technology, the capacity of the local loop infrastructure is enhanced dramatically. The
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XtendLan XL-GDB series User’s Guide
multi-rate capability of the XL-GDB SHDSL access system provides needed flexibility for service
providers deploying today’s digital services.
2.4 Real-time Performance Monitoring
The system provides extensive real-time, non-disruptive monitoring of system performance. DSL
transmission and interface port parameters are continuously monitored. Current and historical
data is available to assist you in identify sources of problems during troubleshooting.
2.4.1 Monitored Parameters
Signal/Noise Ratio: This is a DSL transmission parameter, measured in dB, which indicates the
Signal-to-Noise (S/N) ratio at a receiver point. The signal-to-noise value is available on the CID’s
status screen and the value is updated every second.
DSL CRC-6: This is a 6-bit word in every DSL frame, representing a calculation based on all the
bits in that frame except for FAW and CRC-6 bit word. Any mismatch at the receiver, between the
received CRC-6 and the one calculated based on the received data in the frame, indicates one or
more bits were received in error in that second and it is considered and Errored Second (ES).
DSL Sync Loss: To assure proper synchronization between DSL transceivers, a sync word is
generated in every frame. A sync loss is declared when one or more bits in five consecutive sync
words are detected in error. When this happens, the entire second of data is considered an
Unavailable Second(UAS).
2.4.2 History Reports
parameters are calculated:
Error Seconds (ES): a second in which at least 1 CRC-6 error is detected.
Sever Error Seconds (SES): a second in which at least 150 CRC-6 errors are detected.
Unavailable Seconds (UAS): a second in which one or more sync loss ebeny has occurred.
Cumulative counts of these parameters are displayed via the console as discussed in Chapter 5
“Configuration/Operation.” The readout displays the total count of each parameter since the last
time the count was cleared.
Based on detected parameters, the following derived performance
2.4.3 Status Readouts
In addition to history reports, the XL-GDB provides current status readouts via CID. The Status
menu displays the signal/noise ratio as well as loss of sync or errored CRC. For the synchronous
interfaces such as V.35, the status of clock and control lead is shown. For the G.703 interface,
such status items as HDB3 detected, frame bit error, carrier loss, yellow alarm and sync loss are
indicated if they are present.
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XtendLan XL-GDB series User’s Guide
2.5 Interface Configuration
Parameters can be changed by using CID. When using a terminal, the parameters are
selected from the Configuration menu.
2.6 Interface Type
The XL-GDB is configured as DCE and is provided with a female connector for V.35, EIA-530,
RS-449 and X.21 interfaces. Appendix A lists each of the signals, pin numbers, and their relative
direction for the different interfaces. G.703 (E1) and T1 interfaces are available.
2.7 Alarm management
The XL-GDB includes alarm to alert you of problem conditions on both the DSL transmission
facility and the data interface. On the DSL line, loss of Sync will activate an alarm, independent of
the access interfaces.
Loss of Sync: This alarm indicates that the facility cannot transmit data until the XL-GDB can
re-synchronize itself. This is always considered an alarm. The alarm indication is shown as a local
and a remote sync loss. On the G.703 and T1 interfaces, numerous alarm conditions will be
reported if they are present:
1. Loss of Frame (LOF)
2. BPV Detected
3. RAI/YEL: Remote alarm indicator/Yellow alarm
4. AIS: Alarm indication signal
5. CRC Error
6. LOS: Loss of signal
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2.8 Diagnostics
In addition to the real-time, non-disruptive performance monitoring discussed in Section 2.4, the
XL-GDB System provides for disruptive (out-of-service) diagnostic testing. For detailed
Loopback points, please refer to Appendix D Loopback Diagram. The XL-GDB system does this
by incorporating four loopback modes as follows:
2.8.1 Near End Loopback (NearEndLB)
In this mode, The NLB capability is set up inside STU-C/STU-R as close as possible to the
network side interfaces. The NLB is capable of control (activation and deactivation) by CID. The
received signal is sent to the loop during the NLB is activated. For example, if Near End Loopback
is activated at STU-C, the direction of Near End Loopback would be like (A) in figure 2.1.
STU-C
Figure 2.1 Near End Loop Back
2.8.2 Local Loopback(LocalLB)
The local loopback capability is set up inside STU-C/STU-R as close as possible to the loop
interfaces. The local loopback is capable of control (activation and deactivation) by CID. The
received signal is sent to the loop during local loopback. For example, if local loopback is activated
at STU-C, the direction of local loopback would be like (B) in figure 2.2
STU-C
Figure 2.2 Local DSL Loopback
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XtendLan XL-GDB series User’s Guide
2.8.3 Remote Loopback (RemoteLB)
The Remote Loopback is able to be activated and deactivated through EOC via CID interfaces.
This loopback is used for checking the loop and transceiver units of STU-C/STU-R. The received
signal is sent to network side interface during the RLB loopback. For example, if Remote
Loopback is activated at STU-C, the direction of local loopback would be like (c) in figure 2.3
STU-C
Figure 2.3 Remote Loopback
2.8.4 Remote Payload Loopback (PayloadLB)
The Remote Payload Loopback is able to be activated and deactivated through EOC via CID
interfaces, and is set up inside STU-C/STU-R as close as possible to the network side interfaces.
The received signal is sent to network side interface. For example, if Remote Payload Loopback is
activated at STU-C, the direction of Remote loopback would be like (D) in figure 2.4
STU-C
Figure 2.4 Remote Payload Loopback When any of these modes is activated, the
loopback path causes the system operation to be disrupted. In particular, the Local SHDSL
Loopback path opens the line, causing the system to lose synchronization. Once this loopback is
deactivated, the system will reinitialize.
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XtendLan XL-GDB series User’s Guide
Chapter 3: APPLICATIONS
XtendLan XL-GDB offers several interface options to customers. The interface options help
service providers target customer applications, such as synchronous E1/FE1, V.35, and Ethernet.
In regulated environments, these products quickly solve the challenges of connecting many
subscribers at high data rates. In unregulated environments, these products bring Internet,
Intranet and other new services to campus and ISP markets. The following examples illustrate the
variety of applications served by the XL-GDB SHDSL access system. These configurations are
but a sampling of the many combinations of interface modules. XL-GDB access system interface
options are continually being added and enhanced in order to provide high-speed WAN access to
all telecommunications and data communications
environments.
3.1 Far Reach Single Pair E1 or T1
The XL-GDB101E and XL-GDB101T (G.703 or T1 interface) products replace a four-wire
transmission system, effectively doubling the utilization of the copper loop while extending the
reach from below 9,000 feet to beyond 11,000 feet.
T1/E1
T1/E1
SHDSL SHDSL
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XtendLan XL-GDB series User’s Guide
3.2 Fast Synchronous Interfaces
The XL-GDB101V provides V.35 fast synchronous interface. A M34F, V.35 connector for
connection to the selected synchronous interface is accessible from the back of the unit. These
V.35 interface modules facilitate new applications such as teleconferencing and commuting. The
V.35 interface can be mixed with E1 or Fractional E1 interfaces for end-to-end transmission.
Typical applications include MPEG quality video, video conferencing, and telecommuting and fast
file transfer.
IP Switch
V.35
SHDSL
Copper Wire
Subscriber
V.35
SHDSL
Router
3.3 Selectable Data Rates
XL-GDB interfaces allow software selectable data rates at selected Fractional E1 rates set from
the designated central office unit. The XL-GDB V.35 module can be programmed for numerous
Fractional E1 rates or set to automatically adjust to the fastest available rate. Appropriate
applications include programmable frame relay, channelized E1 service to PBX, bandwidth on
demand for teleconferencing, distributed instruction, and Internet accesses.
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XtendLan XL-GDB series User’s Guide
3.4 Packet Interface: Ethernet
Ethernet access is provided as a remote Ethernet bridge (standard 802.3). A single workstation
can directly connect the XL-GDB101F Ethernet port to a personal computer. Alternately, the
XL-GDB Ethernet port can be interfaced to an Ethernet LAN and used as a multiple-user remote
Ethernet bridge as shown in figure.
Switch/Hub
Ethernet
Ethernet
Bridge
ISP Office
SHDSL
Copper Wire
Ethernet
Bridge
SHDSL
Subscriber
Router
Router
Applications for remote Ethernet connectivity are as numerous as the use of business systems
and as ubiquitous as the prevalence of LAN environments. Examples include Internet Service
Providers, corporate campus networks, remote computing, and video services.
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XtendLan XL-GDB series User’s Guide
Chapter 4: Installation
4.1 General
The following section will help you to understand how to install the XL-GDB access system.
Understanding these topics will definitely make you knowing the XL-GDB better.
4.1.1 Unpacking your XL-GDB
Depending upon the number of units and spares you ordered, your shipment consists of one or
more boxes containing the following materials:
• One XL-GDB unit.
• One AC power adapter with cord or power cord.
• This document.
• Any other accessories requested by user at time of ordering.
Check the contents of the package and inspect the unit for any signs of damage. Reports any
damage to the carrier or contact XtendLan Corporation’s customer service representative.
4.1.2 Site Selection
The following are guidelines for site selection. These guidelines must be followed to ensure a
proper installation site. The installation site should have a 100V to 240V AC power receptacle for
the AC adapter. The installation site should provide space for adequate ventilation and cable
routing reserve at least 5 inches at the rear of the unit for cables and airflow. Moreover, the units
are designed for indoor use only.
4.1.4 Installation
Installing a XL-GDB requires several I/O cables, which you will have to supply. The I/O cables
should be long enough to connect your local and remote equipment to the system’s local and
remote jacks. All of the cables are identified below: Link cable. Connects your data equipment to
the XL-GDB unit. The connector on the XL-GDB end of the cable must be depends upon the type
of mating connector on your equipment. The pin assignments for these connectors appear in
Appendix A. Line cables. Line cables connect the DSL line to the XL-GDB. The SHDSL loop
connection uses pins 4 and 5 of the 8 pins RJ-45 jack. One can use the optional RJ45 to RJ11
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XtendLan XL-GDB series User’s Guide
cable line cable supplied for connection to telephone jack.
4.1.5 Rear Panel
As the following figures shown, XL-GDB with external AC power can be equipped with different
interfaces, including V.35, E1/T1 and Ethernet to meet user’s needs.
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XtendLan XL-GDB series User’s Guide
4.2 Installation Procedure
1. Place the XL-GDB within 5 meters (15 feet) of your equipment. The actual distance
depends on how long the link cable is.
2. Connect the power adapter (supplied with the unit) to the AC power receptacle on the rear
of the unit. Connect the other end of the power adapter to the appropriate AC power source,
and this action will turn the unit on.
3. Connect and install the DSL line cable to the SHDSL modem unit’s LOOP jack. The 8 pins
LOOP RJ-48 jack uses pins 4 and 5 for loop connection. As an optional accessory,
XTENDLAN can include a DSL line cable, which has RJ-48 connector on one side and
RJ-11 connector on the other side. Appendix A lists the pin assignments for this cable.
4. The XL-GDB modem unit goes through an initialization and startup process; during this
time, the LEDs will flash to indicate that system initialization is in process.
5. Attach the end of the link cable to the port in the center of the rear panel. This connector is
M34F for V.35 interface, DB25 for EIA-530/RS-449 interface and RJ-45 for an Ethernet
interface.
6. If you are using the CID port, connect the cable between your PC and CID port on the rear
of the local unit. This port is configured as DCE.
7. For detailed information about the dip switches and push button on the 10/100 BaseT
interface, please check Appendix C.
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4.3 LED Descriptions
The SHDSL unit has six LEDs (light emitting diode)
and their meanings and actions are listed in the table below:
PWR
DSL Off Loop has not synchronized
LNK
TST
CPE
ALM
On It indicates that the unit has normal power
Off The unit has no power
On Loop has synchronized
Flash Loop has achieved handshake
On User interface is present
Off User interface is not present
On Performing the maintenance tests
Flash The maintenance test is being performed on the other
unit
Off Not performing the maintenance tests
On The unit is customer premises equipment
Off The unit is central office equipment
On The system has alarm
Off The system is operating normally
Flash Remote Alarm
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Chapter 5: Configuration/Operation
5.1 Terminal Operation
This chapter describes how to use an external PC to configure the system and monitor status and
statistics. On each screen, the available commands and the configurable fields are highlighted.
Alarm messages can be retrieved by using the supervisory (CID) port and show on the screen.
5.1.1 Screen Definition
STU-C mode opration as as Central site (CO)
STU-R mode operation as Remote site (CPE)
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5.2 Main Menu – V. 35
Following is the menu structure for the XL-GDB101V with a V.35 interface in STU-C and STU-R.
STU-C:
STU-R:
In order to bring up the main menu, press the “Esc” until the screen listed above show. If the
terminal screen is illegible, presses the “Esc” repeatedly for bring up the main menu. If all efforts
fail, make sure the proper cable has been used and the supervisory port parameter (9600, No
parity, 1 stop bit and 8 data bits) settings match the terminal settings. Note: Press the “Esc” for
returning to previous page and press the “m/M” for returning to main menu.
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XtendLan XL-GDB series User’s Guide
5.2.1 Configuration Menu
STU-C (CENTRAL SITE)
STU-R (REMOTE SITE)
As you can see the examples above, both central site and remote site have differences in term of
their functions. The central site has the power to set up INTF, DTE/E1/T1/LAN, DSL, Payload rate
and PCLK, and STU-R is incapable of doing so, if the loop is connected between STU-C and
STU-R. One way to access and set up STU-R is throgh remote logon. Our examples will focus
more on the central site and if you have any questions or problems during the operation please call
our customer service representative.
5.2.1.1 Unit Menu
Enter “1” for assigning the unit as the central site. If you want to assign the unit as the remote site,
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then Enter “2”. Returning to the previous screen, just press the “Esc” key. Hit the “Enter” key to
access the select mode screen.
5.2.1.2 INTF Menu (Combo interface card only)
Currently, two kinds of combo interface card are selectable, E1/T1/V.35 and E1/T1 Combo card.
E1/T1/V.35 combo card provides three interfaces, E1, T1 and V.35. E1/T1 combo card provide
two interfaces, E1 and T1. In the configuration menu, enter “2” to enter INTF menu in which
different interfaces are seleable. To change the interface, key in the desired selection and hit
Enter.
E1/T1/V.35 Combo interface screen
E1/T1 Combo interface screen
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XtendLan XL-GDB series User’s Guide
5.2.1.3 DTE Menu
The DTE (Data Terminal Equipment) menu is used to perform DTE interface configuration, Data,
RTS, V54 and Clock. Note: STU-C has the power to set up Data, RTS, V54 and Clock; however,
STU-R only has the previlege to set up Clock.
5.2.1.2.1 DATA
The data menu shows the current DTE data polarity (either normal or inverted) by placing an
asterisk (*) by the appropriate selection. To change the DTE data polarity, key in the desired
selection and hit Enter.
5.2.1.2.2 RTS (request to send)
The RTS (Request to send) menu shows the current DTE RTS operation mode (either permanent
or normal) by placing an asterisk (*) by the appropriate selection. To change the DTE RTS
operation mode, key in the desired selection and hit “Enter”. The permanent mode turns on all
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XtendLan XL-GDB series User’s Guide
output control signal; while the normal mode turns on the output control signals according to input
control signals.
5.2.1.2.3 V54
The V54 menu shows current V54 mode (either disable or enable) by placing asterisk (*) by the
desired selection. To change the V54 mode, key in the desired selection and hit “Enter”.
5.2.1.2.4 CLOCK
The clock menu shows the current DTE clock polarity status (either normal or inverted) by placing
an asterisk (*) by the appropriate selection. To change the DTE clock polarity, key in the desired
selection and hit Enter. When normal is selected, data from DTE is sampled using rising edge. For
inverted selection, the sampling is using the falling edge of the clock. Clock can be set up both at
STU-C and STU-R side. Note: To change the setting of Clock at STU-R through remote logon
from STU-C is invaild.
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5.2.1.3 DSL
DSL menu allows user to change related DSL settings including worst case target SNR, Line
probing and power Backoff. Select the desired item to change DSL settings. Note: only STU-C has
the power to set up DSL.
5.2.1.3.1 WORST CASE TARGET SNR
You can change the SNR Target Margin by enter your desired number (range from –10~21), and
press “ENTER” to save your setting when you want to suit this screen.
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5.2.1.3.2 LINE PROBING
In this screen, you can disable or enable Line Probing function. Select “1” to disable or “2” to
enable Line Probing function.
5.2.1.3.3 POWER BACKOFF
When the line probing is enable, In the power back off menu, you can select “1” , AUTO, or “2”,
Manual, to execute the power Backoff function.
If you choose the “MANUAL” to configure the range of power Backoff, the “MANUAL” screen will
appear so that you can set the power back off from 0~30 db. After your configuration, press
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“ENTER” to quit with save or “ “ESC” to quit without save. When the line probing is disable, only
“MANUAL” is available, the screen shows as follows:
Moreover, Power Backoff at STU-R is only set up by manual through remote logon from STU-C,
which shows as follows:
5.2.1.4 TRANSMISSION Mode Menu
The Transmission mode screen only apprears in the STU-R. Please use remote logon to access
STU-R and then enter DSL menu to set up transmission mode. When transmission mode screen
appears, Annex A and Annex B is available to select. key in “1” to select Annex A or “2” to select
Annex B. Press Enter to submit your setting and press “ESC” to quit this screen. Press “M/m” to
back to main menu.
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5.2.1.5 Set Rate Menu
The data rate for network interface is set at the STU-C (Central Site) only. After configuration, the
SHDSL system will use the line rate, which has been requested by user. User can select the
desired rate by using [+] or [-] and then pressing the “Enter” key to complete the setting. The
following screen show how to configure the max rate.
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In the MAX screen, you can press [+] or [-] to increase or decrease max rate and press “ENTER” to
save your setting or “ “ESC” to quit this screen. As to MIN RATE configuration, it’s the same with
MAX RATE configuration.
5.2.1.6 PCLK
The PCLK (Primary clock) menu is used to configure the primary clock source; it shows the current
clock source as either internal, DTE port or DSL by placing an asterisk (*) by the appropriate
selection. To change the selection, key in the desired selection and hit “Enter”. Note: only STU-C
has the power to set up PCLK.
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5.2.1.7 Backup Menu
BACKUP menu is used to store the current working configuration to the user-stored configuration
by press appropriate selection and hitting the “Enter” key. The screen above shows that the
configuration is saved.
5.2.1.7 Recall Menu
RECALL menu is used to recall the user-stored configuration by press appropriate selection and
hitting the Enter key. The screen above shows that the configuration has been restored. Recall
user-stored configuration will not change the unit selection; therefore, a STU-C unit will not change
to STU-R unit after configuration recall.
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5.2.1.8 Default Menu
DEFAULT menu is used to recall the default configuration by press the appropriate selection and
hitting the “Enter”. all the setting will return to the original value except the role of unit you’ve
selected. Note: Recall default configuration will not change the unit selection; theref ore, a STU- C
unit will not change to STU-R unit.
5.2.2 Surveillance Menu
The Surveillance menu consists of three groups of commands: Alarm, PM (Performance) and
Status. The alarm menu will enable user to gather information about current alarm state of the
SHDSL units and also past alarm history. The PM menu allows the user to monitor the system’s
performance in real-time basis and past performance recorded in 96 intervals with the duration of
each interval equivalent to 15 minutes. The status menu gives the user an instant overview to all
the configuration and maintenance settings.
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5.2.2.1 Alarm Menu
To show the alarm history report, Enter “1”. To show the current alarm report, press “2” and hit
“Enter”. The “CLEAR” selection will clear all alarms from history buffer and reset all counters to
zero in current alarm. Besides, you can configure the alarm threshold in the “THRESHOLD” menu.
5.2.2.1.1 History Menu
The alarm history is used to track the occurrence of alarm and when it was cleared for a maximum
of 64 entries. The entries are recorded onto the history buffer according to the time of occurrence.
It is recommended that the date and time in Miscellaneous menu is set to the correct time after
each time power is applied in order to make the alarm history more meaningful. For more details
about the alarm types, please refer to Appendix B. The alarm history screen will not automatically
update the alarm list, the user need to press “Enter” to update new alarms on to the list.
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5.2.2.1.2 Current Menu
For the current alarm display, the alarm type and state will appear on the screen. For more details
about the explanations of the alarm types, please refer to Appendix B. The state column indicates
the current state of the alarm and the count column indicates the number of times this alarm has
happened.
5.2.2.1.3 Clear Menu
The clear menu is used to clear both history and current alarm queue. Press “ESC” or “ENTER” to
return to Alarm menu.
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5.2.2.1.4 Threshold Menu
This menu sets the threshold values for the alarm types displayed. It is used as an alarm threshold
for the 15-minute alarm count register. When the PM counters’ values is greater than the set
threshold, an alarm will occur. For detailed information about the alarm types please refer to
Appendix B.
5.2.2.1.4.1 DSL Threshold
In the screen of DSL Threshold menu, four categories of DSL threshold are listed: 15MIN, 1DAY,
SNR and ATTEBUATION which will be introduced explicitly in the following sections.
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5.2.2.1.4.1.1 15 minutes Threshold
In the 15MIN screen, you can configure the UAS (unavailable seconds), SES (serious Errored
seconds) and ES (Errored seconds) threshold in the 15 minutes duration. The following screens
show how to set the 15 minutes UAS, SES and ES threshold.
5.2.2.1.4.1.1.1 15 minutes UAS
You can enter the your desired value to set the 15 minutes UAS threshold from 0 to 900 and “0”
disable the 15 minutes UAS threshold. After finishing your setting, press “ENTER” to quit this
screen and save your setting, or press ”ESC” to quit without saving your setting.
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5.2.2.1.4.1.1.2 15 minutes SES
Similar with 15 minutes UAS, 15 minutes SES (serious errored seconds) could be configured by
entering 0 to 900, whereas “0” means disable. After finishing your setting, press “ENTER” to quit
this screen and save your setting, or press ”ESC” to quit without saving your setting.
5.2.2.1.4.1.1.3 15 minutes ES
In the 15 minutes ES (errored seconds) screen, ES threshold could be configured by entering 0 to
900, whereas “0” means disable ES threshold. After finishing your setting, press “ENTER” to quit
this screen and save your setting, or press ”ESC” to quit without saving your setting.
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5.2.2.1.4.1.2 1-DAY
In the 1DAY screen, UAS (unavailable seconds), SES (serious Errored seconds) and ES (Errored
seconds) threshold in the 1 day duration could be configured by entering a specified item, from 1
to 3. The following screens show how to set the 1 DAY UAS, SES and ES threshold.
5.2.2.1.4.1.2.1 1-DAY UAS
You can enter the your desired vlaue to set the 1 Day UAS threshold from 0 to 86400. After
finishing your setting, press “ENTER” to quit this screen and save your setting, or press ”ESC” to
quit without saving your setting.
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5.2.2.1.4.1.2.2 1-DAY SES
Similar with 1 Day UAS, 1 Day SES (serious errored seconds) could be configured by entering
from 0 to 86400. After finishing your setting, press “ENTER” to quit this screen and save your
setting, or press ”ESC” to suit without saving your setting.
5.2.2.1.4.1.2.3 1-DAY ES
In the 1 Day ES (errored seconds) screen, ES threshold could be configured by entering from 0 to
86400. After finishing your setting, press “ENTER” to suit this screen and save your setting, or
press ”ESC” to quit without saving your setting.
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5.2.2.1.4.1.3 SNR
In the SNR (signal-to-noise ratio) screen, SNR threshold could be configured by entering from 0 to
15, whereas “0” means SNR threshold off. After finishing your setting, press “ENTER” to quit this
screen and save your setting, or press ”ESC” to quit without saving your setting.
5.2.2.1.4.1.4 ATENUATION
In the ATTENUATION screen, attenuation threshold could be configured by entering 0 to 127,
whereas “0” means attenuation threshold off. After finishing your setting, press “ENTER” to quit
this screen and save your setting, or press ”ESC” to quit without saving your setting.
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5.2.2.2 Performance Monitor Menu
The PM menu consists of two commands: DSL and CLEAR. To show the PM interval counters,
press “1” and hit “Enter”. CLEAR will erase all PM intervals and counters.
5.2.2.2.1 DSL Menu
The DSL PM menu consists of Current 15 minutes (900 seconds), Current 1 Day, Previous 96
intervals of 15 minutes, Previous 1 Day and total performance monitoring counters.
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5.2.2.2.1.1 Current - 15M Menu 5.2.2.2.1.3 Previous - 15M Menu
The current menu displays the performance monitoring values for the current 15 minutes interval.
Unavailable Seconds (UAS) are calculated by counting the number of seconds that the interface is
unavailable. LOSWS is the Loss of Synchronization Second. For more detailed explanation about
the acronyms, please refer to Appendix B.
5.2.2.2.1.2 Current 1 Day Menu
The values shown are the total for the 96 previous 15 minutes’ counter values. Unavailable
Seconds (UAS) are calculated by counting the number of seconds that the interface is unavailable
within 1 Day. LOSWS is the Loss of Synchronization Seconds within 1 Day. For more detailed
explanation about the acronyms, please refer to Appendix B.
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5.2.2.2.1.3 Previous - 15M Menu
Previous 15 minutes menu displays the performance monitoring count for up to 96 intervals; each
interval is 15 minutes long. For more detailed explanation about the acronyms listed, please refer
to Appendix B.
5.2.2.2.1.4 Previous – 1 Day Menu
The values shown are the total for the 96 current 15 minutes’ counter values. Unavailable
Seconds (UAS) are calculated by counting the number of seconds that the interface is unavailable
within 1 Day. For more detailed explanation about the acronyms, please refer to Appendix B.
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5.2.2.2.1.5 Total Menu
DSL total menu displays the total number of performance monitoring count for CRC (Cyclic
Redundancy Check), ES (Errored Seconds), SES (Serious Errored Seconds) and UAS
(Unavailable Seconds). Press “ESC” to quit this screen.
5.2.2.2.2 Clear Menu
The clear menu is used to clear all PM buffers, including Current-15M, Current-1DAY,
Previous-15M, Previous-1 DAY and TOTAL buffers. Click on “Enter” or “ESC” to return to PM
menu screen.
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5.2.2.3 Status Menu
Status screen shows the current status of XL-GDB standalone. Click on “CR” (Enter) to browse
next page or “ESC” to exit status menu.
Page 1
In the page2, Threshold, maintenance and status value are displayed separately.
Page 2
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5.2.3 Maintenance Menu
This menu consists of the maintenance Loopback functions, PRBS ( PRBS; Pseudo-Random Bit
Stream ) and SELFTEST. Those items will be explained in detail below.
5.2.3.1 Loopback Menu
The screen is used to control the local SHDSL equipement’s network interface loopback tests.
Two kinds of loopback is selectable, the direction of loopback toward Local site or remote site.
They will be explaned in detail below.
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5.2.3.1.1 FROM LOCAL
The From Local Loopback menu is used to perform local Loopback tests
which would be looped back toward the user. For V.35 interface, there are 6
Loopback modes for selection:
1. Disable
2. NearEndLB
3. LocalLB
4. RemoteLB
5. PayloadLB
6. V54LB
Note: V54 function in configuration menu must be pre-configured as enable if to proceed V54LB
test.
For E1, T1 and Ethernet interfaces, users can only activate five loopbacks where V54LB is not
avaiable :
1. Disable
2. NearEndLB
3. LocalLB
4. RemoteLB
5. PayloadLB
For more detailed description about Loopback, please refer to 2.8 Diagnostics or Appenidix D:
Loopback Illustration.
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5.2.3.1.2 FROM REMOTE
The From Remote Loopback menu is used to perform local Loopback tests which would be looped
back toward the remote side. For V.35 interface, there are six Loopback modes for selection:
1. Disable
2. NearEndLB
3. LocalLB
4. RemoteLB
5. PayloadLB
6. V54LB
Note: V54 function in configuration menu must be configured as enable if to proceed V54LB test.
For E1, T1 and Ethernet interfaces, users can only activate five loopbacks where V54LB is not
available :
1. Disable
2. NearEndLB
3. LocalLB
4. RemoteLB
5. PayloadLB For more detailed description about Loopback, please refer to 2.8 Diagnostics
or Appenidix D: Loopback Illustration.
5.2.3.1.3 PRBS Menu
For each STU-C and STU-R, the built-in PRBS (pseudo-random binary sequence) generation and
detection are provided for Loopback performance test. Test results are displayed in the PRBS
screen. Click on “CR” (Enter) to start the PRBS test so that the TST LED of local SHDSL device
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will be lit and remote SHDSL device will flash simultaneously when receiving PRBS. PRBS
SYNC will display SYNC when local SHDSL device receives correct PRBS test code, and PRBS
SYNC will display Unsync when local SHDSL device receives incorrect PRBS test code. Clicking
on” E” will result in injecting 1 error bit to test. The Bit Error Count will be cleared by Clicking on “R”
(ReSync).
5.2.3.1.4 SELFTEST
will result in injecting 1 error bit to test. The Bit Error Count will be cleared by Clicking on “R”
(ReSync).
5.2.4 Miscellaneous
To select the Miscellaneous options, press “4” in the main menu and hit “Enter”. The menu for
STU-R is the same as above except that PASSWORD and ID cannot be changed. DATE and ID
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can only be changed from STU-C. To change these two items, one will have to remote logon to
STU-C unit to make the changes.
5.2.4.1 Date Menu
The Date menu shows the current date and time as shown above. The corresponding is (MM) for
month, (DD) for day, (YY) for year, (hh) for hour, (mm) for minute and (ss) for second. This option
must be concluded by [Enter] to save the changes. The date is the same for STU-C and STU-R
and can only be changed on the STU-C unit. To change the date, one will have to remote logon to
STU-C unit to make the changes.
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5.2.4.2 Lock Menu
The lock menu is used to control CID port operation. Normally, configurations and maintenance
can be changed CID port. To avoid unauthorized user from change the SHDSL system’s setting,
CID port’s ability to change configuration and maintenance can be disabled by selecting LOCK
MENU to “on”. With locked “ON”, user still can operate to obtain the configuration information and
status from surveillance menu. To disable LOCK function, user must enter a password.
5.2.4.3 Change Password Menu
Using this screen can change password. The old password will be prompted once along with the
new password entered twice to confirm the new password.
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5.2.4.4 Change ID Menu
The machine ID is useful in identifying the particular unit. Using this screen can change the
Machine ID. The machine ID can have up to 9 digits and is shown on the top right hand corner.
The ID is the same for STU-C and STU-R and can only be changed on the STU-C unit. To change
the ID, one will have to remote logon to STU-C unit to make the changes.
5.2.5 Remote Logon
To control the remote logon menu, key in the desired selection and hit Enter. The remote logon is
STU-C ‘s previlige and used to control the STU-R on the other end of the DSL connection. Once
the remote logon is turned on, the users will have access to STU-R’s configuration and urveillance
selections. All other operating procedures are the same as local operation, except on top of the
screen will show <<Remote Logon STU-R>> when logon from STU-C.
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5.3 Main Menu - Ethernet
Following figure is the menu structure for the XL-GDB101F with an Ethernet interface. STU-C
(CENTRAL SITE)
STU-R (REMOTE SITE)
For more detail information, please refer to section 5.2 Main Menu-V.35.
5.3.1 Configuration Menu
For more detail information, please refer to section 5.2.1 Configuration Menu.
STU-C (CENTRAL SITE)
STU-R (REMOTE SITE)
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5.3.1.1 Unit Menu
Please refer to section 5.2.1.1 Unit Menu for details.
5.3.1.2 DSL Menu
5.3.1.3 Set Rate Menu
See section 5.2.1.5 Set Rate Menu for all detail information.
5.3.1.4 Primary Clock Menu (PCLK)
The Primary clock menu is used to configure the primary clock source; it shows the current clock
source as internal, the INT ports, DTE or DSL by placing an asterisk (*) by the appropriate
selection. To change the selection, key in the desired selection and hit Enter.
5.3.1.5 Backup Menu
Please refer to section 5.2.1.7 Backup Menu for details.
5.3.1.6 Recall Menu
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Please refer to section 5.2.1.7 Recall Menu for detail information.
5.3.1.7 Default Menu
Please refer to section 5.2.1.8 Default Menu for detail information.
5.3.2 Surveillance Menu
Please refer to section 5.2.2 Surveillance Menu for detail information.
5.3.2.1 Alarm Menu
Please refer to section 5.2.2.1 Alarm Menu for detail information.
5.3.2.1.1 History menu
Please refer to section 5.2.2.1.1 History Menu for detail information. Moreover, refer to Appendix B
for the definition of alarm types.
5.3.2.1.2 Current Menu
Please refer to section 5.2.2.1.2 Current Menu for detail information. Moreover, please refer to
Appendix B for the definition of names.
5.3.2.1.3 Clear Menu
Please refer to section 5.2.2.1.3 Clear Menu for all the details.
5.3.2.1.4 Threshold Menu
Please refer to section 5.2.2.1.4 Threshold Menu for detail information.
5.3.2.2 Performance Monitor Menu
Please refer to section 5.2.2.2 Performance Monitor Menu for all the details.
5.3.2.2.1 DSL Menu
Please refer to section 5.2.2.2.1 DSL Menu for all the details.
5.3.2.2.1.1 Current - 15M Menu
Please refer to section 5.2.2.2.1.1 Current - 15M Menu for details. Furthermore, see
Appendix B for the definition of names.
5.3.2.2.1.2 Current 1 Day Menu
Please refer to section 5.2.2.2.1.2 Current 1 Day Menu for further details. Moreover, see Appendix
B for the definition of names.
5.3.2.2.1.3 Previous – 15 Minutes Menu
Please refer to section 5.2.2.2.1.3 Previous - 15M Menu for details.
5.3.2.2.1.4 Previous – 1 Day Menu
Please refer to section 5.2.2.2.1.4 Previous – 1 Day Menu for details.
5.3.2.2.1.4 Total Menu
Please refer to section5.2.2.2.1.5 Total Menu for details.
5.3.2.2.2 Clear Menu
Please refer to section 5.2.2.2.2 Clear Menu for detail information.
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5.3.2.3 Status Menu
Please refer to section 5.2.2.3 Status Menu for detail information.
Page 1
Page 2
5.3.3 Maintenance Menu
This menu consists of the maintenance loopback functions. Refer to section
5.2.3 Maintenance Menu for detail information.
5.3.3.1 Local Loopback Menu
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Refer to section Loopback Menu for detail information.
5.3.3.2 PRBS Menu
Refer to section5.2.3.1.3 PRBS Menu for detail information.
5.3.4 Miscellaneous Refer section Miscellaneous menu for detail information.
5.3.4.1 Date Menu
Refer to section 5.2.4.1 Date Menu for detail information.
5.3.4.2 Lock Menu
Refer to section 5.2.4.2 Lock Menu for detail information.
5.3.4.3 Change Password Menu
Refer to section 5.2.4.3 Change Password Menu for details.
5.3.4.4 Change ID Menu
Refer to section 5.2.4.4 Change ID Menu for detail information.
5.3.5 Remote Logon
Refer to section 5.2.5 Remote Logon for detail information.
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5.4 Main Menu - E1 Interface
Following is the menu structure for the XL-GDB101E, GDB102E with an E1 interface. STU-C
(CENTRAL SITE)
STU-R (REMOTE SITE)
5.4.1 Configuration Menu
Note: INTF will appear in STU-C, if using the combo interface card.
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STU-R (REMOTE SITE)
Refer to section 5.2.1 Configuration Menu for detail information.
5.4.1.1 Unit Menu
Refer to section 5.2.1 Configuration Menu for detail information.
5.4.1.2 INTF Menu (Combo Interface Card only)
Refer to section 5.2.1 Configuration Menu for detail information.
5.4.1.3 E1 Menu
Under the configuration menu of E1 screen, Frame, Frame Insert and line code could be
configured. The following screens show how to set Frame, Frame Insert and Line code. Only
STU-C has the power to set up E1.
5.4.1.3.1 FRAME Menu
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This menu is to select whether the E1 interface uses either the unframed, FAS+CRC or FAS.
When the Frame is configured as UNFRAME, the whole bandwidth (2.304Mbps) is used for
transmitting data without checking CRC.
5.4.1.3.2 Frame Insert Menu
The above menu is for framing; the user can select either insert or bypass framing word. Time slot
zero can be inserted or bypassed by the local unit. When in bypass mode, time slot zero is added
to the number of payload time slots to form the line rate used by the G.SHDSL system. For
example, when the user selects time slots 1,2 and 3 as the payload time slots, and user selects
bypass framing, time slot zero is added to the total payload rate count for a total count of four.
When user selects insert framing, time slot zero is not added to the total payload rate count for a
total count of three. When STU-R’s user interface is either DTE or Ethernet, framing will always be
inserted by the E1 interface.
5.4.1.3.3 Line Code Menu
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In the screen of E1 line code, the Line Code for E1 is HDB3 (High Density Bipolar of Order 3) that
is a European digital network transmission protocol allowing information and control data to be
embedded in the transmission bit stream.
5.4.1.4 DSL Menu
DSL menu allows user to change related DSL settings including worst case target SNR, Line
probing and power Backoff. Select the desired item to change DSL settings. Only STU-C has the
power to set up DSL.
5.4.1.4.1 WORST CASE TARGET SNR Menu
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In the DSL menu, you can change the value of WORST CASE TARGET SNR by entering “1” to
enter WORST CASE TARGET SNR screen.
In the WORST CASE TARGET SNR, You can change the SNR Target Margin by enter your
desired Value (range from –10~21), press “ENTER” to save your setting when you want to quit this
screen.
5.4.1.4.2 LINE PROBING
In this screen, you can disable or enable Line Probing function. Select “1” to disable or “2” to
enable Line Probing function.
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5.4.1.4.3 POWER BACKOFF
When the line probing is enable, In the power back off menu, you can select “1” , AUTO, or “2”,
Manual, to execute the power Backoff function.
If you choose the “MANUAL” to configure the range of power Backoff, the “MANUAL” screen will
appear so that you can set the power back off from 0 to 30 db. After your configuration, press
“ENTER” to quit with save or “ “ESC” to quit without save. When the line probing is disable, only
“MANUAL” is available, the screen
shows as follows:
Moreover, Power Backoff at STU-R is only set up by manual through remote logon from STU-C,
which shows as follows:
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5.4.1.4.4 TRANSMISSION Mode Menu
The Transmission mode screen only apprears in the STU-R. Please use remote logon to access
STU-R and then enter DSL menu to set up transmission mode. When transmission mode screen
appears, Annex A and Annex B is available to select. key in “1” to select Annex A and “2” to select
Annex B. Press Enter to submit your setting and press “ESC” to quit this screen. Press “M/m” to
back to main menu.
5.4.1.5 Set Rate Menu
The data rate for network interface is set at the STU-C (Central Site) only. After configuration, the
SHDSL system will use the line rate, which has been requested by user. User can select the
desired rate and data location in relation to an E1 frame by using the function keys located above
the current map. Whenever an asterisk appears under a number, the associated time slot/64K
channel is enabled and contains data to be transmitted between the two SHDSL units. During
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unframed (transparent) E1 mode, the data rate is automatically set to 2.048 Mbps and all 31 time
slots are used to transmit data.
5.4.1.6 Primary Clock Menu (PCLK)
The Primary clock menu is used to configure the primary clock source; it shows the current clock
source as internal, the E1 interface port or DSL by placing an asterisk (*) by the appropriate
selection. To change the selection, key in the desired selection and hit Enter. Only STU-C has the
power to set up PCLK.
5.4.1.7 Backup Menu
Please refer to section 5.2.1.7 Backup Menu for details.
5.4.1.8 Recall Menu
Please refer to section 5.2.1.7 Recall Menu for detail information.
5.4.1.9 Default Menu
Please refer to section 5.2.1.8 Default Menu for detail information.
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5.4.2 Surveillance Menu
The Surveillance menu consists of three groups of commands: Alarm, PM (Performance) and
Status. The alarm menu will not only enable user to gather information about current alarm state of
the SHDSL units but also collect past alarm history. The PM menu allows the user to monitor the
system’s performance in real-time basis and past performance recorded in 96 intervals with the
duration of each interval equivalent to 15 minutes and 1 day. The status menu gives the user an
instant overview to all the configuration and maintenance settings.
5.4.2.1 Alarm Menu
Please refer to section 5.2.2.1 Alarm Menu for detail information.
5.4.2.1.1 History menu
The alarm history is used to track the occurrence of alarm and when it was cleared for a maximum
of 64 entries. The entries are recorded onto the history buffer according to the time of occurrence.
It is recommended that the date and time in Miscellaneous menu is set to the correct time after
each time power is applied in order to make the alarm history more meaningful. For more details
about the alarm types, please refer to Appendix B. The alarm history screen will not automatically
update the alarm list, the user need to press “Enter” to update new alarms on to the list.
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5.4.2.1.2 Current Menu
For the current alarm display, the alarm type, state and count will appear on the screen. For more
details about the explanations of the alarm types, please refer to Appendix B. The state column
indicates the current state of the alarm and the count column indicates the number of times this
alarm has happened.
5.4.2.1.3 Clear Menu
Please refer to section 5.2.2.1.3 Clear Menu for all the details.
5.4.2.1.4 Threshold Menu
This menu sets the threshold values for the alarm types displayed. It is used as an alarm threshold
for the 15-minute alarm count register. When the PM counters’ values is greater than the set
threshold, an alarm will occur. For detailed information about the alarm types please refer to
Appendix B.
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5.4.2.2 Performance Monitor Menu
The PM menu consists of three commands: DSL, E1 and Clear. To show the PM interval
counters for DSL, press “1” and hit “Enter”. To show the PM interval counters for E1, press
“2”and hit “Enter”. CLEAR will erase all PM intervals and counters.
5.4.2.2.1 DSL Menu
Please refer to section 5.2.2.2.1 DSL Menu for all the details.
5.4.2.2.1.1 Current - 15M Menu
Please refer to section 5.3.2.2.1.1 Current - 15M Menu for details. Furthermore, see
Appendix B for the definition of names.
5.4.2.2.1.2 Current – 1 Day Menu
Please refer to section 5.2.2.2.1.2 Current 1 Day Menu for all the details.
5.4.2.2.1.3 Previous - 15M Menu
Please refer to section 5.2.2.2.1.3 Previous - 15M Menu Previous Menu for details.
5.4.2.2.1.4 Previous – 1 Day Menu
Please refer to section 5.2.2.2.1.4 Previous – 1 Day Menu Previous Menu for details.
5.4.2.2.1.5 Total Menu
Please refer to section 5.2.2.2.1.5 Total Menu Previous Menu for details.
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5.4.2.2.2 E1 PM Menu
The E1 PM menu consists of current 15 minutes, Current 1 Day, Previous 15 minutes, Previous 1
Day and Total performance monitoring counters.
5.4.2.2.2.1 Current - 15M Menu
The current 15 minute menu displays the performance monitoring values for the current 15
minutes interval. Unavailable Seconds (UAS) are calculated by counting the number of seconds
that the interface is unavailable. LCV is Line Code Violation counted within current 15 minute.
5.4.2.2.2.2 Current – 1Day Menu
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The current 1 Day menu displays the performance monitoring values for the current 1 Day interval.
Unavailable Seconds (UAS) are calculated by counting the number of seconds that the interface is
unavailable. LCV is Line Code Violation counted within current 1 Day.
5.4.2.2.2.3 Previous - 15M Menu
The Previous 15 minute menu displays the performance monitoring count for up to 96 intervals;
each interval is 15 minutes long.
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5.4.2.2.2.4 Previous – 1Day Menu
The Previous 1 Day menu displays the performance monitoring count for up to 96 intervals; each
interval is 1 Day long.
5.4.2.2.2.2 Total Menu
The values shown are the total counter values.
5.4.2.2.3 Clear Menu
Please refer to section 5.2.2.2.2 Clear Menu for detail information.
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5.4.2.3 Status Menu
Page 1
Page 2
please refer to 5.2.2.3 Status Menu for detail information.
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5.4.3 Maintenance Menu
Please refer to section 5.2.3 Maintenance Menu for detail information.
5.4.4 Miscellaneous Refer section Miscellaneous for detail information.
5.4.4.1 Date Menu
Refer to section 5.2.4.1 Date Menu for detail information.
5.4.4.2 Lock Menu
Refer to section 5.2.4.2 Lock Menu for detail information.
5.4.4.3 Change Password Menu
Refer to section 5.2.4.3 Change Password Menu for details.
5.4.4.4 Change ID Menu
Refer to section 5.2.4.4 Change ID Menu for detail information.
5.4.5 Remote Logon
Refer to section 5.2.5 Remote Logon for detail information.
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5.5 Main Menu - T1 Interface
Following is the menu structure for the XL-GDB101T, GDB102T with a T1 interface at STU-C and
STU-R side. STU-C:
STU-R:
5.5.1 Configuration Menu
STU-C (CENTRAL SITE)
STU-R (REMOTE SITE)
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Refer to section 5.2.1.1 Unit Menu for detail information.
5.5.1.1 Unit Menu
Refer to section 5.2.1.1 Unit Menu for detail information.
5.5.1.2 INTF Menu
Refer to section 5.2.1.1 Unit Menu for detail information.
5.5.1.3 T1 Menu
For this setup, the T1 menu selections consists of Frame, Frame Insert, Line code and LBO (Line
build out) selections that are used by the SHDSL unit. The T1 can only be set at CO (STU-C) side
and used through out the SHDSL system.
5.5.1.2.1 FRAME Menu
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This menu is to select whether the T1 interface uses either the Super Frame (SF), Extended Super
Frame (ESF) or UNFRAME mode. The Frame format can only be set at CO (STU-C) side and
used through out the SHDSL system.
5.5.1.2.2 Frame Insert Menu
The above menu is for framing; the user can select either insert or bypass framing word. Time slot
zero can be inserted or bypassed by the local unit. When in bypass mode, time slot zero is added
to the number of payload time slots to form the line rate used by the G.SHDSL system. For
example, when the user selects time slots 1,2 and 3 as the payload time slots, and user selects
bypass framing, time slot zero is added to the total payload rate count for a total count of four.
When user selects insert framing, time slot zero is not added to the total payload rate count for a
total count of three. When STU-R’s user interface is either DTE or Ethernet, framing will always be
inserted by the E1 interface.
5.5.1.2.3 LINE CODE Menu
The above menu is for setting each T1 unit’s line code to be used with
interconnecting T1 equipment. The line code, B8ZS or AMI, can be individually
set to different line codes depending on the T1 equipment attached.
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5.5.1.2.4 LBO Menu
The above menu is for configure the T1 reach parameter. The T1’s transmit pulse is increased
with the change of distance. The transmit pulse is the largest when the LBO setting is at 533 ~ 655
feet and the transmit pulse is the smallest when the LBO setting is at 0 ~ 133 feet. This parameter
is used to compensate for the loss that will occur when longer wires are used for T1
transmission. The conversion factor between feet and meters is that 1 meter is approximately 3.3
feet. Hence, 655 feet is approximately 200 meters. When this parameter is used incorrectly, the
T1 interface will be receiving no signals or too strong of a signal which will cause T1 interface
malfunction.
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5.5.1.4 Set Rate Menu
The data rate for network interface is set at the STU-C (Central Site) only. After configuration, the
SHDSL system will use the line rate, which has been requested by user. User can select the
desired rate (from 3 to 24). Whenever an asterisk appears under a number, the associated time
slot/64K channel is enabled and contains data to be transmitted between the two SHDSL units.
5.5.1.5 Primary Clock Menu (PCLK)
Primary clock menu is set at STU-C and used to configure the primary clock source; it shows the
current clock source as internal, the T1 interface port or DSL by placing an asterisk (*) by the
appropriate selection. To change the selection, key in the desired selection and hit Enter.
5.5.1.6 Backup Menu
Please refer to section 5.2.1.7 Backup Menu for details.
5.5.1.7 Recall Menu
Please refer to section 5.2.1.7 Recall Menu for detail information.
5.5.1.8 Default Menu
Please refer to section 5.2.1.8 Default Menu for detail information.
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5.5.2 Surveillance Menu
The Surveillance menu consists of three groups of commands: Alarm, PM (Performance) and
Status. The alarm menu will enable user to gather information about current alarm state of the
SHDSL units and also past alarm history. The PM menu allows the user to monitor the system’s
performance in real-time basis and past performance recorded in 96 intervals with the duration of
each interval equivalent to 15 minutes. The status menu gives the user an instant overview to all
the configuration and maintenance settings.
5.5.2.1 Alarm Menu
Please refer to section 5.2.2.1 Alarm Menu for detail information.
5.5.2.1.1 History menu
Please refer to section 5.2.2.1.1 History Menu for detail information.
5.5.2.1.2 Current Menu
Please refer to section 5.2.2.1.2 Current Menu for detail information.
5.5.2.1.3 Clear Menu
Please refer to section 5.2.2.1.3 Clear Menu for all the details.
5.5.2.1.4 Threshold Menu
Please refer to section 5.2.2.1.4 Threshold Menu for all the details.
5.5.2.2 Performance Monitor Menu
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The PM menu consists of three commands: DSL, T1 and Clear. To show the PM interval counters
for DSL, press “1” and hit “Enter”. To show the PM interval counters for T1, press “2”and hit “Enter”.
Clear will erase all PM intervals and counters.
5.5.2.2.1 DSL Menu
Please refer to section 5.2.2.2.1 DSL Menu for all the details.
5.5.2.2.1.1 Current - 15M Menu
Please refer to section 5.2.2.2.1.1 Current - 15M Menu for details. Furthermore, see
Appendix B for the definition of names.
5.5.2.2.1.2 Current – 1Day Menu
Please refer to section 5.2.2.2.1.2 Current 1 Day Menu for all the details.
5.5.2.2.1.3 Previous - 15M Menu
Please refer to section 5.2.2.2.1.3 Previous - 15M Menu for details.
5.5.2.2.1.4 Previous – 1Day Menu
Please refer to section 5.2.2.2.1.4 Previous – 1 Day Menu for details.
5.5.2.2.1.5 Total Menu
Please refer to section 5.2.2.2.1.5 Total Menu for details.
5.5.2.2.2 T1 PM Menu
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The T1 PM menu consists of current 15 minutes (900 seconds), Current 24 hours and Previous 96
intervals of 15 minutes performance monitoring counters.
5.5.2.2.2.1 Current - 15M Menu
The current 15 minute menu displays the performance monitoring values for the current 15
minutes interval. Unavailable Seconds (UAS) are calculated by counting the number of seconds
that the interface is unavailable. Line Code Violations (LCV) are errors received when the T1 line
code is not as expected. For more detailed explanation about the acronyms, please refer to
Appendix B.
5.5.2.2.2.2 Current – 1Day Menu
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The current 1 Day menu displays the performance monitoring values for the current 1 Day interval.
Unavailable Seconds (UAS) are calculated by counting the number of seconds that the interface is
unavailable. Line Code Violations (LCV) are errors received when the T1 line code is not as
expected. For more detailed explanation about the acronyms, please refer to Appendix B.
5.5.2.2.2.3 Previous -15M Menu
The Previous 15 minute menu displays the performance monitoring count for up to 96 intervals;
each interval is 15 minutes long. For more detailed explanation about the acronyms listed, please
refer to Appendix B.
5.5.2.2.2.4 Previous –1 Day Menu
The Previous 1 Day menu displays the performance monitoring count for up to 96 intervals; each
interval is 1 Day long. For more detailed explanation about the acronyms listed, please refer to
Appendix B.
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5.5.2.2.2.5 Total Menu
The TOTAL menu displays the total performance monitoring count For more detailed explanation
about the acronyms listed, please refer to Appendix B.
5.5.2.2.3 Clear Menu
Please refer to section 5.2.2.2.2 Clear Menu for detail information.
5.5.2.3 Status Menu
Page 1
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Page 2
The status menu shows the status of the local unit only, for this case it is STU-C. To display the
STU-R status, one can either use remote logon method or direct CID connection to STU-R.
5.5.3 Maintenance Menu
Please refer to section 5.2.3 Maintenance Menu for all the details.
5.5.4 Miscellaneous
5.5.4.1 Date Menu
Refer to section 5.2.4.1 Date Menufor detail information.
5.5.4.2 Lock Menu
Refer to section 5.3.4.2 Lock Menu for detail information.
5.5.4.3 Change Password Menu
Refer to section 5.2.4.3 Change Password Menu for details.
5.5.4.4 Change ID Menu
Refer to section 5.2.4.4 Change ID Menu for detail information.
Refer section Miscellaneous for detail information.
5.5.5 Remote Logon
Refer to section 5.4.5 Remote Logon for detail information.
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Chapter 6 Configuration/Operation using LCD Panel
This chapter describes how to use the LCD front panel to configure the system, monitor status and
gathering statistics. The LCD menu consists of five main selections: Configuration, Surveillance,
Maintenance, Miscellaneous and Remote Logon. Each selection has multiple selection items,
which can be used to configure, monitor and examine the unit and the pair’s condition. Please note
that CID operation has priority over LCD panel operation; therefore, when the CID port has a
terminal or PC connected to it, the LCD will only show the first screen and the unit will ignore key
press on the LCD panel.
The LCD front panel consists of a 16 characters
by 2 lines Liquid Crystal Display (LCD) and four
keys. The keys are designated with 3, 4, EXIT
and ENTER. The EXIT key is used to jump up to
the previous level of menu. The 3and 4 keys are
used to scroll through the menu items or make
changes. The ENTER key is used to confirm an
operation and in some screens, change
displayed items.
The main screen consists of information about
the current unit. The first line displays G.SHDSL
and The second line shows the STU-C or STU-R.
To move from the main screen to the other
operations menu, one can press 3or 4 keys. To
jump back to the main screen from the menu
level below the main screen one can press EXIT
key. The menu structure is similar to that of CID
operations menu. There are five main selections:
Configuration, Surveillance, Maintenance,
Miscellaneous and Remote Logon. Each
selection will be explained in more detail in the
following sections.
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6.1 Configuration Screen
The configuration menu, depending on the type of interface and the unit’s designation, will have
several variations are shown below. The main purpose of the configuration menu is to configure
the unit for operation. The first line shows current selection: Configuration while the second line
shows all the selections available one at a time when scrolling. The 3and 4 keys are used to
scroll through the menu items. The ENTER key is used to confirm and save the selection in
memory while the EXIT key is used to jump back to previous menu level without saving the
changes.
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APPENDIX A: Interface Pin Assignments
DTE Interface Pin Assignment Table
EIA DESCRIPTION
Shield
Signal Gnd SG
DTE Common RTN
DCE Common RTN
Transmit Data (A) TD(A) DCE P 2 4 2
Transmit Data (B) TD(B) DCE S 14 22 9
Receive Data (A) RD(A) DTE R 3 6 4
Receive Data (B) RD(B) DTE T 16 24 11
Request To Send (A) RTS(A) DCE C 4 7 3
Request To Send (B) RTS(B) DCE
Clear To Send (A) CTS(A) DTE D 5 9
Clear To Send (B) CTS(B) DTE
Data Set Ready (A) DSR(A) DTE E 6 11
Data Set Ready (B) DSR(B) DTE
Data Terminal Ready (A) DTR(A) DCE H 20 12
Data Terminal Ready (B) DTR(B) DCE
Data Carrier Detect (A) DCD(A) DTE F 8 13 5
Data Carrier Detect (B) DCD(B) DTE
Terminal Transmit Clock
(A)
Terminal Transmit Clock
(B)
Transmit Clock (A) TC(A) DTE Y 15 5
Transmit Clock (B) TC(B) DTE AA 12 23
Receive Clock (A) RC(A) DTE V 17 8 6
Receive Clock (B) RC(B) DTE X 9 26 13
Remote Loopback RLB DCE N 21 14
Local Loopback LLB DCE L 18 10
Test Mode TM DTE NN 25 18
ABBR. SIGNAL
TO
V.35 EIA-530 RS-449 X.21
A 1 1 Case
B 7 19 8
37
20
19 25 10
13 27
22 29
TTC(A) DCE U 24 17 7
TTC(B) DCE W 11 35 14
23 30
10 31 12
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CID (RS-232) PIN ASSIGNMENT TABLE
EIA DESCRIPTION
Signal Gnd SG
Transmit Data (A) TD(A) DCE 3
Receive Data (A) RD(A) DTE 2
Request To Send (A) RTS(A) DCE 7
Clear To Send (A) CTS(A) DTE 8
Data Set Ready (A) DSR(A) DTE 6
Data Terminal Ready (A) DTR(A) DCE 4
Data Carrier Detect (A) DCD(A) DTE 1
ABBR. SIGNAL
TO
RS-232
5
E1 and T1 INTERFACE PIN ASSIGNMENT TABLE
SIGNAL
DESCRIPTION
TTIP OUT 1 T 1
TRING OUT 9 R 2
RTIP IN 3 T1 4
RRING IN 11 R1 5
Frame Ground
DIRECTION DB-15 TERMINAL
BLOCK
2 GND 3
4
RJ-45
6
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APPENDIX B: Acronym Definitions
Below are the definitions for the Alarms and PM acronyms.
DSLLos The Loop is in Loss of Sync state when in Alarm state.
DSLLosW Loss of Sync Word, the DSL SYNC word received was corrupted and when
this occurs continuously for more than 2 seconds, DSLLos will be declared.
DSLLosd Far end user interface is not active when in Alarm state.
DSLSnr Received DSL SNR value is lower than set value.
DSLAttn DSL attenuation value is higher than set value.
DSLUAS15Min PM Threshold alarm for 15-Minute count. Alarm will active when DSLUAS
value for the 15-minute interval islarger than set threshold value.
DSLSES15Min PM Threshold alarm for 15-Minute count. Alarm will active when DSLSES
value for the 15-minute interval is larger than set threshold value.
DSLES15Min PM Threshold alarm for 15-Minute count. Alarm will active when DSLES
value for the 15-minute interval is larger than set threshold value.
DSLUASDay PM Threshold alarm for 1-Day count. Alarm will aktive when DSLUAS value
for the 1-Day interval is larger thanset threshold value.
DSLSESDay PM Threshold alarm for 1-Day count. Alarm will activewhen DSLSES value
for the 1-Day interval is larger than set threshold value.
DSLESDay PM Threshold alarm for 1-Day count. Alarm will aktive when DSLES value
for the 1-Day interval is larger thanset threshold value.
DTELos Local DTE or Ethernet user interface is not active when in Alarm state.
ET1Los The E1 or T1 interface does not have input signal, Loss of Signal (LOS).
ET1Lof The E1 or T1 interface cannot obtain the input frame, Loss of Frame (LOF).
ET1Ais The E1 or T1 interface is receiving an Alarm Indicator Signal.
ET1Rai The E1 or T1 interface is receiving a Yellow alarm or Remote Alarm
Indication (RAI).
ET1UAS15Min PM Threshold alarm for 15-Minute count. Alarm will active when ET1UAS
value for the 15-minute interval is larger than set threshold value.
ET1SES15Min PM Threshold alarm for 15-Minute count. Alarm will active when ET1SES
value for the 15-minute interval is larger than set threshold value.
ET1ES15Min PM Threshold alarm for 15-Minute count. Alarm will active when ET1ES
value for the 15-minute interval is larger than set threshold value.
ET1UASDay PM Threshold alarm for 1 Day count. Alarm will aktive when ET1UAS value
for the 1-Day interval is larger than set threshold value.
ET1SESDay PM Threshold alarm for 1 Day count. Alarm will aktive when ET1SES value
for the 1-Day interval is larger than set threshold value.
ET1ESDay PM Threshold alarm for 1 Day count. Alarm will aktive when ET1ES value
for the 1-Day interval is larger than set threshold value.
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APPENDIX C: Ethernet Interface Setting for XL-GDB101F
10/100 BaseT Ehternet Interface: There are two LEDs on the panel of 10/100 BaseT Ehternet
Interface: DUPLEX and 10/100.
DUPLEX: the DUPLEX LED will be green when this interface is power on; if the LED turns into
red, the DUPLEX mode is activated. 10/100: red shows the speed is 10Mbps and green shows
the speed is 100Mbps. In addition, there is also a push button on the 10/100 BaseT Ethernet
panel. The push button selects which device the 10/100 BaseT port is connected to. When it is
pushed in, it is a direct connection to the computer and when it is in the out position, it is a
direction connection to the HUB. 10/100 BaseT Ethernet Interface
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APPENDIX D: Loopback Illustration
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