Planet Technology UI-1280 User Manual

ISDN T/A 128

Passive ISDN Adapter

ISA / PCI / USB

Copyright Statement

Copyright ©1999 PLANET Technology Corporation.
No part of this publication may be reproduced in any form or by any means or used to make any

derivative such as translation, transformation, or adaptation without permission from PLANET
Technology Corporation.

Trademarks

This guide and the accompanying product are each provided “as is,” without warranty as to their
performance, merchantability or fitness for any particular purpose. PLANET Technical Corporation
reserve the right to revise this publication and to make changes to its contents at any time, without
obligation to notify any person or entity of such revisions or changes.

Revision

This guide is used for PLANET ISDN T/A 128 card series:

Model: IA128-STD, IA128-STDV,

IA128P-STD, IA128P-STDV
IA128P-UD, IA128P-UDV
IA128P-UD, IA128P-UDV

UI-1280ST
Reversion: 3 (August, 1999)
Part No.: EMIA128-3

= = CONTENTS = =

CHAPTER 1 INTRODUCTION................................................................................................................... 1

ISDN T/A 128 ADAPTERS ......................................................................................................................... 1

THE FEATURES OF ISDN T/A 128 ADAPTERS......................................................................................... 2

WHY ISDN?................................................................................................................................................... 3

WHY HIGH SPEED ANALOG MODEMS CAN NOT COMPETE WITH ISDN DIGITAL CONNECTIONS?......... 3

CHAPTER 2 BEFORE INSTALLATION................................................................................................... 4

PACKAGE CHECKLIST.................................................................................................................................... 4

ISDN BRI LINE ............................................................................................................................................ 4

WHAT IS SPID? ............................................................................................................................................ 5

NT1 CONNECTION......................................................................................................................................... 5

INTERNET ACCESS ACCOUNT........................................................................................................................ 5

ENVIRONMENT SETUP.................................................................................................................................... 5

CHAPTER 3 INSTALLATION..................................................................................................................... 8

INSTALLATION FOR WINDOWS 3.1 ENVIRONMENT...................................................................................... 8

INSTALLATION FOR WINDOWS 95 ENVIRONMENT ......................................................................................11

INSTALLATION FOR WINDOWS 98 ENVIRONMENT ......................................................................................24

INSTALLATION FOR WINDOWS NT ENVIRONMENT......................................................................................29

INSTALLATION FOR WINDOWS 2000 ENVIRONMENT .................................................................................37

CHAPTER 4 COMPORT EMULATOR.....................................................................................................40

CHAPTER 5 TROUBLESHOOTING ........................................................................................................43

ISDN T/A 128 LINETEST......................................................................................................................43

ISDN T/A 128 ISDN LOG ......................................................................................................................44

ERROR MESSAGES .......................................................................................................................................45

APPENDIX A SPECIFICATIONS..............................................................................................................47

APPENDIX B EC-TYPE EXAMINATION AND FCC REGULATION.................................................48

APPENDIX C APPLICATIONS..................................................................................................................50

APPENDIX D ISDN T/A 128 VIRTUAL MODEMS.............................................................................55

Chapter 1 Introduction

ISDN central office

customer

T interface

ISDN

ISDN U interface

customer

The proliferation of PCs and LANs with bandwidth intensive applications, has
generated a powerful demand for high-speed connections. The worldwide
standardization of ISDN, combined in many countries with its growing availability and
falling cost, make it a natural choice for enhancing data throughput.

ISDN T/A 128 adapters provide high-performance solutions for Internet access, file

transfer, remote access service (RAS), video conferencing, and running existing
modem applications through the ISDN network.

ISDN T/A 128 Adapters

There are two types of ISDN interface of ISDN T/A 128 adapter, ST and U interface. If
you purchased the ST interface adapter (eg. IA128-ST), you need an ISDN NT1 device
connect to the ISDN switch. If you purchased the U interface adapter (eg. IA128-U), it
can directly connect to the ISDN switch. (figure 1-1)

There are two types of PC buses of ISDN T/A 128 adapter, ISA and PCI. Each bus (ISA
or PCI) and each interface (ST or U) has two models option, “D” and “DV”. All of the
features between “D” and “ DV” models are the same, except “ DV” model provides an
extra standard a/b (POTS) port.

IA128-ST

IA128-U

Figure 1-1 ISDN T/A 128 adapters connection diagram

You can easily get the information from “IA128-U-DV” type are ISA bus, ISDN card, U

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interface and a/b port connections. Of course, “IA128P-ST-D” means PCI bus, ISDN
card, and ST interface connection only. “IA128” implies Planet’ s ISDN PC internal
adapter.

All of the current analog devices, including telephone set, G3 fax, answering machine,
modem, and PBX trunk line can be connected to the a/b port (RJ-11 jack) in “DV” model.
The data transmission rate of the “DV” model can up to 64 Kbps while analog
communication on-line, or up to 128 Kbps through Multilink PPP connection.

The Features of ISDN T/A 128 Adapters

You can use the ISDN T/A 128 adapters for Internet access, file transfer, remote access
to the computer network, and running existing modem applications through the ISDN
network.

The valuable applications and specifications of ISDN T/A 128 adapters

u PnP with 16 bits address decoding. Supporting of Windows 3.1, 95 (OSR-2),

98, and NT. Even the BIOS not support PnP, ISDN T/A 128 adapters still
automatically choose the appropriate IRQ and memory address.

u Supporting Linux system (optional feature).
u Global ISDN D channel protocols support. Supporting of Euro-ISDN (DSS1,

and 1TR6), Japan INS-64, US standards of NI-1 & NI-2, AT&T 5ESS, and
Nortel DMS-100.

u Full B channel protocol set support, including V.110, V.120, HDLC, X.75

(Transparent, T70NL, EuroFT), PPP, MLP, async. to sync. PPP conversion,
and MLP+BOD.

u MLP+BOD. Customers can use the Dialup Networking and select our MLP or

MLP+BOD virtual modem to get 128K connection. The BOD is based on the
data traffic, voice call … to drop/establish another B channel for saving time
and money.

u Supporting the application interfaces including WinISDN, CAPI 2.0, Windows

Comm. API with AT command sets, and NDISWAN Miniport.

u Supporting the popular modem application with ISDN throughput and digiTAl

transmission quality, eg. PC Anywhere.

u Supporting of other applications, eg. RVS-COM, WinGate, cfos, CuSeeMe,

Microsoft's HyperTerminal.

u Comm. server capability in the Windows NT Server. It could be used as

Internet comm. server in the ISP, RAS applications for SOHO market, and
connection into Internet shared by all of the LAN users!

u LINETEST feature tests the ISDN line conditions for trouble shooting.
u LOG feature provides the embedded protocol analyzer to decode D-channel

signaling information and raw data on two B channels.

u Supporting IDSL technology solution without need ISDN switch inter-

connection.

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u Supporting multi-language of MS Windows drivers and quick installation guide.
u Supporting the multi-processors of Windows NT platform.
u All of the ISDN T/A 128 passive cards with the same driver, no matter ISA or

PCI bus, or current version or new version. The latest ISDN T/A 128 drivers
from web-site download can backward compatible with ISDN T/A 128 passive
cards.

Why ISDN?

The ISDN (Integrated Services Digital Network) is the standard for carrying both data
and voice simultaneously. ISDN BRI (Basic Rate Interface) line provides two B­Channels for voice or data transmission, and each B-Channel can provide data
transmission of up to 64 Kbps. The ISDN network uses the same transmission lines as
the existing analog telephone network, but using a digital signal and higher bandwidth
between the central office (phone company) and the customer. Aside from four times
faster than a standard 28.8 Kbps modem, ISDN also provides an extremely reliable and
stable digital connection.

The ISDN network can set up a connection in about 3 seconds. This is much quicker
than the PSTN network. This feature alone can result in great time savings in the longer
term.

Why High Speed Analog Modems Can Not Compete With ISDN Digital Connections?

“The high speed modem can run at 28.8 Kbps and will move data at ISDN-type speeds
when you consider data compression”. This assumes a noise-free telephone line and
that the data is easily compressed. Unfortunately, many image files cannot be
compressed easily, and many telephone lines are far from ideal. ISDN always operates
at its rated speed. Of course, ISDN cards can also use data compression technology to
multiply its raw data transmission speed.

Telephone monopolies allowing, ISDN will inevitably replace the existing analog
telephone network. The conversion is being driven by applications such as
telecommuting, home-working, remote LAN access, video conferencing and access to
the Internet. Today, ISDN is available almost everywhere so all users can should be
able to get the benefits from ISDN now.

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Chapter 2 Before Installation

Before installation ISDN T/A 128 adapter, you need to check the package contents,
apply an ISDN BRI line, get a NT1 device (for ISDN T/A 128 ST adapter only) from your
phone company or retailed stores, and apply an Internet access account (if Internet
access required).

After you prepared the above items, you can start your environment setup. If you
purchased the adapter is “DV” model, you can connect your analog device to the RJ­11 jack (in the UK an adapter is supplied).

Package Checklist

In your ISDN T/A 128 package, you will find the following contents.

u ISDN T/A 128 adapter 1 piece.
u Installation Disk of CD-ROM for Windows 3.1, 95, and NT.
u RJ-45 cable 6 feet for ISDN connection.
u RJ-11 cable for a/b port connection (DV model only).
u USB cable (USB model only)
u (Quick) Installation Guidefor ISDN T/A 128 adapter.
u RJ11-BTS adapter UK only phone adapter.

Suggested System Environment

u Hardware IBM PC (or compatible computer) with 16 MB or more of RAM,

486 CPU or later capable of running Microsoft Windows.

u Software Microsoft Windows environment (Linux is the optional O.S.).

ISDN BRI Line

Before running the ISDN T/A 128 adapter, you need to get an ISDN BRI (Basic Rate
Interface) line from your local telephone company. Sometimes, your ISP may, upon
your request, order an ISDN BRI line for you when you apply an ISDN Internet access
account.

You should get the subscriber information from your ISDN telephone company, who
may inform you about your ISDN central switch type and SPID (Service Profile Identifier)
number, when you are in the US country.

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What is SPID?

SPID stands for Service Profile ID. The SPID is applicable to the US country only.
SPIDs are a series of numbers that informs the central office switch which services and
features to provide to an ISDN device. The generic SPID format comprises 14 digits.
The first 10 digits are the main telephone number on the terminal. The last 4 digits are
dependent on the number of terminals on the interface and the services they support.

NT1 Connection

The ISDN U-loop is terminated by NT1 device at the customer premises. The
connection between the NT1 and Terminal Adapter (ta) is called point “T”. The NT1
drives a 4-conductor S/T-bus which may be expanded to 8 conductors to provide for
emergency power. If your ISDN product with a S/T outlet interface, you need an NT1
device connect to the ISDN switch. ISDN T/A 128 ST adapter needs an NT1 device to
connect to the ISDN switch, but ISDN T/A 128 U adapter does not require NT1 device.
In the UK, and in many European countries, an NT1 device is supplied by your
telephone company. Therefore the ST adapter are required for these countries.

Internet Access Account

If you want to use ISDN T/A 128 adapter to connect to the Internet, you must get an
Internet access account from an ISP (Internet Service Provider) around your location.
You must also confirm with your ISP that they support ISDN access (either single
channel 64K or 128K MLP).

Environment Setup

All ISDN T/A 128 adapters are truly Plug and Play (PnP) compatible. Even if the BIOS
or computer main board does not provide PnP feature, the ISDN T/A 128 device driver
still can automatically configure ISDN card with proper I/O addresses and IRQ number.

1. Terminator setup of ISDN T/A 128 ST adapters (IA128-ST, IA128P-ST,
UI-1280ST)

F Please jump to the next section (2.) if you are the user of U interface adapter,

IA128-U or IA128P-U.

ISDN S/T interface can support up to 8 ISDN terminals and through NT1 device
connecting to the ISDN network. One and only one ISDN S/T device should have
the terminator enabled. Normally the ISDN terminal which is farthest from NT1
should have the terminator enabled.

ISDN T/A 128 ST adapter provides two jumpers of JP1 and JP2 (or DIP switch in

5

USB T/A) for the terminators setup, the default setting of ST adapter with terminator
enabled (DIP switch in ON). If there are other ISDN devices connected to the NT1
with ISDN T/A 128 ST adapter, and you do not need the ISDN T/A 128 ST adapter
as terminator, then please remove the JP1 and JP2 (open circuit, DIP switch in
OFF).

2. Insert the ISDN T/A 128 adapter

a. Turn off your computer power and remove the lid.
b. Insert the ISDN T/A 128 adapter into a spare PC ISA (or PCI) slot and secure it.
c. Replace the lid.

If you have UI-1280ST (USB) device, you can connect to the USB port directly.

3. Analog device connection (DV model only)

“DV” model of ISDN T/A 128 adapter provides a POTS interface (a/b port) with
RJ-11 jack to connect with current analog devices. Users can connect analog
telephones, G3 fax, modem, or answering machine with the RJ-11 connector cable
into the RJ-11 jack of the ISDN T/A 128 adapter. In the UK an adapter is supplied to
convert from the UK type 103 plug to the US RJ-11 plug. The REN (Ringer
Equivalence Number) drive capability or parallel ring number is 3, so you can
connect up to 3 analog devices, assuming each device has a REN of 1.

4. ISDN connection

Connect the ST (IA128-ST, P-IN110-ST or UI-1280ST) adapter and NT1 with RJ-

45 cable connector, and insert the ISDN BRI line into the correct NT1 socket.

OR

Directly Insert the ISDN BRI line with the RJ-45 connector cable into the RJ-45 jack
on the U (IA128-U or IA128P-U) adapter. Please kindly be informed that even RJ­45 connector has 8 pins and RJ-11 has 4 or 6 pins, but you can still plug cable from
wall jack with RJ-11 connector into RJ-45 jack on the U adapter. The ISDN T/A 128
U adapter still works correctly.

6

ISDN

ISDNLINK U adapter connection

ISDNLINK ST adapter connection

Figure 2-1 ISDN T/A 128 adapter setup environment

Now, your ISDN PC environment is ready for installation. Figure 2-1 describes the
setup environment. The ISDN T/A 128 ST adapter attaches to the ISDN T interface
from NT1 and the ISDN T/A 128 U adapter attaches to the ISDN U interface directly with
ISDN switch.

7

Chapter 3 Installation

After you setup your ISDN environment as figure 2-1 described. Now, turn on your
computer power ON and start the driver installation. ISDN T/A 128 adapters support

Microsoft Windows environments, please read the appropriate installation section

for your PC system and ISDN devices. Linux system is also supported optionally.

The ISDN USB T/A (UI-1280ST) provides the Windows 98 and 2000 only.

Installation for Windows 3.1 Environment

Windows 3.1 installation only available for ISDN T/A 128 ISA adapters. You can install

the ISDN T/A 128 ISA adapters with ISDN connection either through COM port emulation,
or the standard WinISDN interface, or standard the CAPI 2.0 interface in Windows 3.1.
Please read the following steps.

Installing and Configuring the Drivers

1. Insert the ISDN T/A 128 installation CD/diskette into the disk drive.

2. Select the “File” menu from the Program Manager, then choose the “ Run” item to

execute the “Setup.exe” file on the disk drive. The ISDN T/A 128 installation software
will automatically process the necessary setup steps.

3. ISDN Configuration. After step 2. completes, setup will automatically pop-up the ISDN

Configuration dialog box (see figure 3-1). Please fill the necessary information in the
text boxes of ISDN Configuration dialog box.

u

ISDN Switch Type. Choose the country name for your location, or select an

appropriate ISDN switch type in your country (especially for US customers).

u

Codec. Countries follow the European telecommunication standard may choose

A-Law. Countries follow the US telecommunication standard may choose u-law.

u

Standby Time. This is a timer which wait any keypads input from analog device

before sending message out. Please leave it as the default value.

u

MSN (POTS). MSN (POTS) parameter is used for ISDN switches supporting MSN

(Multiple Subscriber Number) service. MSN service is supported by some
European telephone companies. If you enter the number here then the called
telephone number of incoming call will be required to match the MSN (POTS) value,

8

otherwise the analog device connect to the POTS (a/b) port will not be enabled.

u

SPID-1 and SPID-2. SPID parameters only need to be setup for some US

customers, please check with your telephone company if it is necessary.

Figure 3-1 ISDN configuration

4. Now you have finished installation of ISDN T/A 128 adapter, please restart windows.

The ISDN T/A 128 driver will be automatically loaded after started the Windows 3.1, and
the ISDN T/A 128 group folder appears as figure 3-2. The ISDN LOG application is used
to record the handshaking and data transfer process during the communication. It can
be used for debugging purpose so it is often useful to have the log running while first
starting to use the ISDN system. The Line Diagnostic is used for on-line channels test
between ISDN switch and subscriber site, and to get the ISDN line status. Please refer
to chapter 5 for detailed information.

F

You can re-configure the parameters of step 3 by executing ISDN
Configurer in the ISDN T/A 128 group folder. The Configuration dialog
box also displays IO address and IRQ value in the message bar.

Figure 3-2 ISDN group folder

Application Environment Setup

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Under Windows 3.x applications can use the ISDN T/A 128 device using either COM
port emulation, the standard WinISDN interface, or the CAPI 2.0 interface.

1. COM Port Emulation. The ISDN T/A 128 driver provides AT Command Set

interpreter to emulate modem’ s actions and transfer/receive data through the ISDN
network. For modem users need set up the application software to the appropriate
COM ports (COM3 or COM4) to communicate with ISDN T/A 128 adapter. AT
Console program (see figure 3-2) can redirect the AT commands and data through
COM3 or COM4 to the ISDN T/A 128 driver to process them.

If you want to setup Internet environment through COM port emulation then

TRUMPET is the popular Internet shareware and includes the TCP/IP and PPP

protocols with Winsock interface. Most Windows 3.1 Internet modem systems use
TRUMPET connect to the Internet and run Internet applications such as Netscape
Navigator. The TRUMPET user should modify the Network Configuration and Script
files to access the Internet through ISDN T/A 128 adapters. See the Appendix C, the
example of modification of TRUMPET setup.

u

When entering the windows 3.1 system, you must run the AT Console to enable

the COM port emulation capability.

u

Multilink PPP is not supported at the AT-Console. You may get Multilink PPP

connection through the applications which include TCP/IP & Multilink PPP
stack with WinISDN or CAPI interface.

2. WinISDN Interface. The ISDN T/A 128 driver can transmit/receive data with

applications through the standard WinISDN interface. The following TCP/IP stacks
support the WinISDN interface.

u

NetManage’ s Chameleon

u

FTP’ s Explore

u

Frontier’ s SuperHighway Access

Please refer to their respective documents to setup the dial-up environment for
WAN and LAN. We recommend NetManage’ s Internet Chameleon (version 4.5 or
later) for compatibility using both PPP and Multilink PPP.

3. CAPI Interface. Applications can also access the ISDN T/A 128 card for up to 128K

data transmission and receiving through the standard CAPI 2.0 (or later) interface.

Removing ISDN T/A 128 for Windows 3.1

If you want to remove ISDN T/A 128 driver from your Windows 3.1, please click the

unInstallSHIELD icon (see figure 3-2).

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Installation for Windows 95 Environment

This section includes the installation of ISDN T/A 128 adapter and application environment
setup. The supported application interfaces including WinISDN, CAPI 2.0, NDISWAN
Miniport adapter, and virtual modem in Windows 95.

Please read the following Windows 95 installation steps and setup procedures of the
NDISWAN Miniport adapters and virtual modems.

Installing and Configuring the Drivers

1. After you have inserted the ISDN T/A 128 adapter, switch computer power on and allow

Win95 to startup. When the Windows 95 system starts it should auto-detect a new PnP
card and request you to install its driver. Please insert ISDN 128K driver diskette/CD
into appropriate disk drive, run the ISDN100.INF file from the installation

diskette/CD, then Windows 95 system will automatically process the necessary

installation steps.

2. Please refer figure 3-3 for ISDN Configuration dialog box. In Windows 95 system, you

can set up (or change) the ISDN configuration of Switch Type, values of MSN and SPID
through the following procedures. Start à Settings à Control panel à System à Device
Manager à ISDN Card à ISDN PC Adapter, Properties à Settings.

Fig. 3-3 ISDN T/A 128 Adapter configuration

This features of ISDN configuration in Windows 95 is similar with the installation in

Windows 3.1 environment as figure 3-1. The MSN (POTS) value is only relevant to the
DV model and determines which telephone number to associate with the POTS
interface e.g. if the number 341317 was entered, then a normal telephone attached to
the POTS interface would be only rung when incoming call with the number of 341317.

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If you want your analog device always ringing when receiving an incoming call,
please keep this field blank. For the UK and most European countries select the

EURO ISDN switch type with A-law Codec. The PTP mode sets the ISDN line as
point to point mode, you may set TEI value also if phone company specifies the TEI
value to you. Otherwise, let it as default (blank). The X.25 on D enables driver to
provide X.25 on D channel service and specify the TEI value also. Please leave it as
default value (blank) if it is not available in your ISDN service list.

3. After configuring the switch type, Windows 95 will request to restart system. After

restart the Windows, if you choose the “DV” model then you can connect a standard
analog telephone set into RJ-11 jack and should be able to hear the dial tone from the
telephone handset.

4. If you already installed the ISDN Accelerator Pack 1.1 (MSISDN11.EXE) or Dial-Up

Networking 1.2 (MSDUM2.EXE) in the Windows, then directly jump to the
application environment setup section. You may check from the property of

connection icon in Dial-Up Networking folder, if you see the “set additional devices” in
the general subwindow or “MultiLink” tab, it means your Windows 95 system already
support NDISWAN interface, please jump to the application environment setup section.

To update the Dial-Up Networking to support 2B channel (MLP) connection and
NDISWAN Miniport interface you will need to install the Win95 MSISDN11.EXE
(version 1.1 or above) upgrade pack. You can get the file from our Windows 95
installation diskette and also accessible from Microsoft web site. Run the

MSISDN11.EXE or MSDUM2.EXE program and follow the installation instructions.

5. Please reboot your PC for effectively ISDN Accelerator Pack features.

Application Environment Setup

After you complete the ISDN T/A 128 driver installation, you can execute the applications
based on the WinISDN and CAPI interfaces. Of course, you need installation the software
before executing the applications, please see the example of Appendix C for RVS-COM (lite
version) software installation. In Windows 3.1, you need to run the AT Console to enable
the COM port emulation capability. Under Win95 the COM port emulation is automatically
loaded at startup.

You can choose the either way of NDISWAN and virtual modem to connect to the
Internet or remote LAN. If you want to execute the Internet related applications or

RAS, we suggest that you setup and use the NDISWAN Miniport adapter interface.

Using the NDISWAN Miniport driver is the Microsoft preferred connection method.

If you want to execute the current modem applications, eg. Microsoft’ s
HyperTerminal or PC Anywhere, you should setup and use the virtual modem
interface through our COM port emulation function (we named the virtual modem).

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1. Connection through the NDISWAN Miniport Adapter

You must install the Microsoft ISDN Accelerator Pack 1.1 (MSISDN11.EXE) or
later version (eg. MSDUM2.EXE) before install the NDISWAN Miniport driver.

a. Add NDISWAN Miniport driver. Please refer the following steps to add

NDISWAN Miniport driver. Start à Settings à Control Panel à Network à Add
à choose Adapter, Add à Have Disk. Specify the directory for the iinwan95.inf
file (under installation diskette of NDISWAN directory, e.g. A:\NDISWAN), click
OK.

b. Win95 will say that it has found one compatible device. Click OK and Windows

will install the IINWan95-ISDN adapter and bind the NDISWAN protocol to this
ISDN adapter as follows.

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c. Click OK, you will see an ISDN Configuration window as follows. Because you

have installed our ISDN NDISWAN driver, the ISDN Accelerator Pack requests
some information about your ISDN service. Click Next.

d. Select “Automatic” for Switch protocol, click Next.
e. Leave the Phone number and SPID fields blank. Click Next, Finish, then reboot

the system to take effect the setting.

f. Configure the Dial-Up Networking to access Internet. Now when you use

the dial-up networking to create a new connection (Start à Programs à
Accessories à Dial-Up Networking à Make New Connection), you can select
the first device of IINWan95 in the connect using field. (such as IINWan95­Line01 in this case, the real number assigned by Windows system). See figure

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3-4. Click Next.

Fig. 3-4 Dial-Up Networking Setup through NDISWAN - 1

g. Type the phone number which you need connect to your ISP or remote LAN.

Click Next, Finish. You will see a new connection icon (PLANET NDISWAN) be
added into Dial-Up Networking folder. Choose the new connection icon,

click the right mouse button, choose Properties. You will see the picture as

follows.

Fig. 3-5 Dial-Up Networking Setup through NDISWAN - 2

h. If you want to use 128K MLP (check your ISP supports this feature) connection,

you need choose another IINWan95 device. In figure 3-5, Settings à Use
additional device à Add à select the second IINWan95 device (IINWan95-

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