ASCOM AM 64/128EA Manuel utilisateur
High Speed Base Band Modems
Desktop Versions
a for faster transmission
USER GUIDE
Ascom part no:
1/265/001/610
Issue 02 – May 2001
1ASCOM USER GUIDE
High Speed Base Band Modems
The information in this document is confidential to
aTelecommunications Ltd and may not be
disclosed or reproduced in whole or in part without
their written consent
© aTelecommunications Ltd 2001
ASCOM USER GUIDE
High Speed Base Band Modems
Note The information contained in this document is supplied without liability
for errors or omissions.
Ascom Telecommunications Limited reserves the right to make changes
to this document at any time without notice.
Compliance Notes and Safety Instructions:
Caution – Hazardous voltage inside the equipment
Safety Instructions:
1. This is a CLASS 1 product and must be connected to a safety earth
through its mains lead.
2. This apparatus must be installed and maintained by
SERVICE PERSONNEL.
3. Disconnect the mains plug and the NTP line connection before
attempting to change the Digital Network Interface card.
4. The mains plug on the equipment serves as the disconnect device,
therefore a socket outlet shall be installed near the equipment and
shall be easily accessible.
Power Rating Information –AC Source:
Voltage Range 110 –260V Wide ranging Switch Mode P.S.U.
Current Range 23mA at 230V and 48mA at 110V.
Frequency Range 50/60Hz
EN 41003 - Safety statements:
The NTP connection has a safety status of TNV-3, the Digital Network Interface port
connection and TERM port have a safety status of SELV and the mains connection has
an EXCESSIVE VOLTAGE status.
COMPLIANCE NOTES AND SAFETY INSTRUCTIONS 1
2.1 INTRODUCTION 9
2.2 EXAMPLE APPLICATIONS 10
2.2.1 Desktop modem to desktop modem with no external timing 10
2.2.2 Desktop modem to desktop modem with external timing 10
2.2.3 Desktop unit to Ascom rack system 10
2.2.4 Desktop unit to Ascom AM70 Multiplexer 11
2.2.5 Ethernet LAN to Ethernet LAN 11
3.1 FRONT PANEL 13
3.2 REAR PANEL 14
4.1 UNPACKING AND CONSIGNMENT CHECK 15
4.1.1 Ordering Information for Modems 15
4.1.2 Ordering Information for User Interface Modules 15
4.2 CONNECTING THE HIGH SPEED MODEM 16
4.3 CONFIGURING THE MODEMS 17
4.3.1 Desktop modem to desktop modem with no external timing 17
4.3.1.1 Configuring SLAVE unit 18
4.3.1.2 Configuring MASTER unit 18
4.3.1.3 Synchronisation 19
4.3.2 Desktop modem to desktop modem with external timing 19
4.3.2.1 Setting External Timing 20
4 INSTALLATION 15
3 UNIT FEATURES 13
2 SYSTEM DESCRIPTION 9
1 SCOPE 7
TTE - Network Statements:
Network connections for which the apparatus is compatible:
a) Analogue Baseband connection up to a rate of 1024kbps.
b) Digital X.21 connection up to a maximum rate of 1024kbps.
c) Digital V.35 connection up to a maximum rate of 1024kbps.
d) Digital X.21bis (V.24/V.28) connection up to a maximum rate of 19.2kbps.
e) Digital V.36 connection up to a maximum rate of 1024kbps.
f) Digital G.703 connection at a rate of 64kbps.
During EMC testing, the digital port cable used was of a screened type. To ensure
compliance, it is recommended that a screened cable be used on this port when in use.
Caution - Electrostatic sensitive device
Electro-static discharge (ESD) Warning:
DURING INSTALLATION DO NOT DISCARD ANY CONNECTOR
COVERS OR DUMMY PLUGS.
To ensure compliance with ESD criteria, ensure any port or connector
that is not in use is protected by the cover or dummy plug supplied.
Electrostatic precautions should be used at all times.
Manufacturers Declaration*
Ascom Telecommunications Ltd. Declares that this product is
in conformity with the essential requirements of the ‘R&TTE
directive 1999/5/EC’.
*A copy of the Declaration of Conformity is available upon request from Ascom
Telecommunications Limited.
ASCOM USER GUIDE
High Speed Base Band Modems
32 ASCOM USER GUIDE
High Speed Base Band Modems
4.3.3 Desktop unit to Ascom rack system 20
4.3.4 Desktop unit to Ascom AM70 Multiplexer 20
5.1 QUICK GUIDE TO BASIC FAULT FINDING 21
5.2 DEFAULT CONFIGURATION 22
5.3 LINK PERFORMANCE 22
5.3.1 Local Loop 22
5.3.2 Remote Loop 23
5.3.3 Far End Local Loop 23
6.1 SETTING THE CONTRAST ON THE LCD DISPLAY 25
6.2 MENU STRUCTURE 26
6.3 CONFIG MENU 27
6.3.1 Modem Mode 28
6.3.2 Number Of Line Pairs 28
6.3.3 Line Rate 28
6.3.4 Internal / External Timing 29
6.3.5 Interface Control Line Transfer 29
6.3.6 Transmit power 29
6.4 OPTION MENU 30
6.4.1 Interface Type / Info 30
6.4.2 Interface Settings 30
6.4.2.1 V.35 and V.36 31
6.4.2.2 X.21 bis (V.24/V.28) 31
6.4.2.3 X.21 31
6 FRONT PANEL MENU SYSTEM 25
5 TROUBLESHOOTING 21
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6.5 STATUS MENU 32
6.5.1 Unit Status 32
6.5.2 Alarms 33
6.5.3 Line Quality 33
6.5.4 Interface Status 33
6.5.5 Menu Locked/Unlocked 34
6.6 TEST MENU 35
6.6.1 Local Loop On/Off 36
6.6.2 Loopback On/Off 36
6.6.3 Remote Loop On/Off 37
6.6.4 V.54 Loop On/Off 37
6.6.5 Data Test 38
6.6.6 In-service Test 39
6.6.7 Lamp Test 40
6.6.8 Self Test 40
7.1 QUICK SET-UP GUIDE 41
7.1.1 Before you start 41
7.1.2 Procedure 41
7.2 VT100 REQUIREMENTS 42
7.2.1 Cable Assembly 42
7.2.2 Terminal Requirements 43
7.3 USE OF CONTROLS USING TERATERM 44
7.4 LOGGING IN 45
7.5 SCREENS 47
7.6 TEST COUNTS 48
7.7 CHANGING PASSWORDS 50
7 VT100 SYSTEM CONTROL 41
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High Speed Base Band Modems
7
This manual covers the installation and operation of the following Ascom high-speed base
band modems:
AM 64/128EA
AM 64/384A
AM 64/512A
AM 64/768A
AM 64/1024A
This guide includes explanations of the associated plug-in user interface modules with the
exception of the ABR (Ascom Bridge Router) module, which requires an additional guide
(part number 1/269/001/610).
Rack mount versions of the High Speed Base Band Modems are covered by the User Guide for
the associated shelf:
Shelf Type User Guide Part Number
AM Rack 1/113/002/610
AM Modem Shelf With Management 1/159/001/610
1 SCOPE 1
8.1 X21 (V.11) 51
8.1.1 15 Way D-type X.21 (V.11) Connector pin allocation 51
8.1.2 Module Link Settings 51
8.1.3 External Timing 52
8.2 X.21 BIS (V.24/V.28) 53
8.2.1 25 Way D-type X.21 bis (V.24/V.28) Connector pin allocation 53
8.2.2 Module Link Settings 53
8.2.3 External Timing 53
8.3 V.35 54
8.3.1 V.35 (MRAC) Connector Pin Allocation 54
8.3.2 Module Link Settings 55
8.3.3 External Timing 55
8.4 RS530 56
8.4.1 25 Way D-type RS-530 Connector pin allocation 56
8.4.2 Module Link Settings 57
8.4.3 External Timing 58
8.5 X.21 BIS (V.36) 58
8.5.1 37 Way D-type V.36 Connector pin allocation 58
8.5.2 Module Link Settings 59
8.5.3 External Timing 60
8.6 G.703 CODIRECTIONAL 64K 60
8.6.1 9 Way D-type Connector pin allocation 60
8.6.2 Module Link Settings 60
8.6.3 External Timing 60
8.7 ASCOM BRIDGE ROUTER 61
8 USER INTERFACES 51
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2.1 INTRODUCTION
All versions of the High Speed Base Band Modems provide synchronous communication of
data over twisted copper pair(s).
The AM64/128EA unit operates at 64Kbps and 128Kbps over a single pair.
The AM64/384A unit operates from 64Kbps to 384Kbps over a single pair.
The AM64/512A unit operates from 64Kbps to 512Kbps over a single pair.
The AM64/768A unit operates from 64Kbps to 768Kbps over two pairs.
The AM64/1024A unit operates from 64Kbps to 1024Kbps over two pairs.
Throughout the document, reference will be to “single pair”and “two pair”modems.
Wherever the term “single pair modem”is used, it applies to any of the following:
AM64/128EA, AM64/384A, AM64/512A.
Wherever the term “two pair modem”is used, it applies to the following:
AM64/768A, AM64/1024A.
The modems optimise their transmission characteristics for each line rate so a reduction in the
data rate will enable transmission over a greater distance.
They can be easily configured from either the front panel controls or a VT100 terminal, and
are available in a range of user interface options. The interfaces currently available are:
•X.21 15-way D-type socket
•X.21 bis 25-way D-type socket
•V.35 34-way MRAC socket
•V.36 37-way D-type socket
•RS.530 25-way D-type socket
•G.703 (64kbps 120ohm ) 9-way D-type socket
•Ascom Bridge Router with10BaseT 8-way RJ-45 socket
2 SYSTEM DESCRIPTION
2
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2.2.4 Desktop unit to Ascom AM70 Multiplexer
This arrangement connects the modem via the AM70 multiplexer on towards a network.
2.2.5 Ethernet LAN to Ethernet LAN
With the Ascom Bridge Router fitted, the modems can provide a WAN connection between
two Ethernet LANs via a 10BaseT port. Full routing and Network Address Translation
functionality precludes the need for external routing devices. In this mode, the timing
originates from the internal clock of the master.
1 or 2 copper pairs
master/slave modem master/slave modem
Ethernet LAN Ethernet LAN
Ascom AM-70
slave modem
Network
customer's
equipment
1 or 2 copper pairs
2
10 ASCOM USER GUIDE
High Speed Base Band Modems
2.2 EXAMPLE APPLICATIONS
The diagrams below illustrate some basic applications:
2.2.1 Desktop modem to desktop modem with no external timing
Either end of the link may be master, with the opposite end being the slave. The timing
originates from the internal clock in the master, and is sent out to the customer’s terminating
equipment.
2.2.2 Desktop modem to desktop modem with external timing
In this example the master modem accepts timing from the interface and uses this to time
the link.
2.2.3 Desktop unit to Ascom rack system
This system behaves like the above examples, but here one of the desktop units is replaced by
the Ascom rack, which can house 12 card units.
slave modem
master modem
customer's
equipment
customer's
equipment
1 or 2 copper pairs
V11, V24/V28, V35, V36,
RS530, 64K G703 1 or 2 copper pairs
master modem slave modem
V11, V28, V35,
V36, RS530
customer's equipment
sourcing timing
customer's
equipment
V11, V24/V28, V35, V36, RS530 1 or 2 copper pairs
master/slave modem master/slave modem
customer's
equipment customer's
equipment
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3.1 FRONT PANEL
Item Function
LCD Liquid Crystal Display. Modem displays menu system here.
Power LED Green LED is lit when unit is powered.
Fault LED Red LED is lit when unit is not in synchronisation (sync).
Test LED Red LED is lit when a loop is applied to modem, the modem is applying a
remote loop or the unit is running a data test.
Receive data LED Amber LED indicates the received data status of the transmission line.
Program LED Amber LED is lit when new configuration settings have been made but
not committed to memory.
Menu Select Buttons Right and Left arrow buttons scrolls menus in the LCD display.
Item Scroll Buttons Up and Down arrow buttons scrolls menu items on the LCD display.
Item Select Button Selects Item displayed on LCD display.
Program Button Stores changes made in configuration to memory.
MENU SCROLL SELECT PROG
POWER FAULT TEST RXD
ascom AM-64/512A
Liquid Crystal
Display Program
Buttons
Menu Select
Buttons
Item Scroll
Buttons
Item Select
Buttons
Power LED
Fault LED
Test LED
Receive
Data LED
Program LED
3 UNIT FEATURES
3
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4.1 UNPACKING AND CONSIGNMENT CHECK
The desktop version of the high speed modem comes packed complete with a 1.5m mains
lead fitted with a country variant mains plug, an RJ45 to RJ45 line cord and where necessary,
an RJ45 to BT style converter lead (where applicable).
Each modem comes with its appropriate user interface module fitted.
4.1.1 Ordering Information for Modems
The High Speed Base Band Modems product family can be ordered using the following
ordering number format:
1/265/YXX
Where Y refers to the model type:
Y=1 for AM64/512A
Y=2 for AM64/1024A
Y=3 for AM64/128EA
Y=4 for AM64/384A
Y=5 for AM64/768A
And XX refers to the user interface module fitted:
XX=01 for X.21 (V.11) interface
XX=02 for X.21bis (V.24/V.28) interface
XX=03 for V.35 interface
XX=04 for V.36 interface
XX=05 for RS530 interface
XX=06 for G.703 interface
XX=07 for modem without interface
4.1.2 Ordering Information for User Interface Modules
Replacement user interface modules can be ordered using the following ordering numbers:
X.21 (V.11) Interface Module 1/203/102/101
X.21bis (V.24/V.28) Interface Module 1/203/202/101
V.35 Interface Module 1/203/302/101
V.36 Interface Module 1/203/402/101
RS530 Interface Module 1/203/402/101
G.703 Interface Module 1/203/602/101
ABR 10BaseT 8-way RJ-45 socket 1/269/001/101
4 INSTALLATION
4
14 ASCOM USER GUIDE
High Speed Base Band Modems
3.2 REAR PANEL
Item Function
Line Connector RJ45 socket for connecting modem to copper lines
User Interface Plug in user interface board
Mains Connector IEC type connector for mains power
VT100 Terminal Connector 9 way D-type connector for RS232 connection to VT100 terminal
Line Connector
User Interface
Mains Connector
VT100 Terminal
Connector
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Your modem should now be connected as illustrated in the following diagram:
4.3 CONFIGURING THE MODEMS
4.3.1 Desktop modem to desktop modem with no external timing
A modem to modem link (as in diagram 2.2.1) requires a straight through connection, i.e. pair
one of the first modem connects to pair one of the second modem. If using two pair modems
in their two pair mode, the second pair of each modem should also be directly connected.
The units will not operate if the pairs are crossed over.
One end of the link will need to be configured as a MASTER and the other end will be
configured as SLAVE. The difference being that the master unit can download the major
settings to the slave, and not vice versa.
The downloaded settings are: number of pairs, line rate, and control line transfer. All other
settings are not downloaded, and have to be set locally.
Copper Pairs Interface Cable
(not supplied) Mains Connection
(supplied with correct plug)
4
16 ASCOM USER GUIDE
High Speed Base Band Modems
4.2 CONNECTING THE HIGH SPEED MODEM
Connect the mains lead into the IEC type socket on the rear of the unit and plug the other
end into an earthed mains supply.
WARNING! This unit must be used only with power supplies providing a safety earth.
The unit should power up, the following messages will be displayed:
Displays type and version of software
This will depend on the status of the unit
Plug one end of the RJ45 to RJ45 line cord lead into the RJ45 line connector socket on the
rear of the unit. The other end connects to your copper line pairs. For the RJ45 connector pair
one is on pins 7 and 8 and pair two (on two pair modems only) is on pins 4 and 5. In the UK
connection is made via RJ45 to BT style converter, connections on pins 1 and 6 for pair one
and 2 and 5 for pair two.
RJ45 TO BT STYLE CONVERTER RJ45 PLUG
A suitable lead is required to connect the modem user interface connector on the rear of the
unit to your DTE equipment. For details of interface connector pin-outs see section 8.
Pin 1
Pin 1
Ce manuel convient aux modèles suivants
4
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