ADTRAN 1200051L5, 1200051L6, 1200051L2, 61200051L1, 1200051L1 User Manual
61200051L1-1D
June 1998
ISU 2x64
Dual Port ISDN Service Unit
User Manual
Part Numbers
1200051L1 U-Interface Version, 110 VAC
1200051L2 S/T-Interface Version, 110 VAC
1200051L5 S/T-Interface International, 110 VAC
1200051L6 S/T-Interface International, 230 VAC
Trademarks:
Ascend is a registered trademark of Ascend Communications, Inc.
ISU is a trademark of ADTRAN, Incorporated.
Macintosh is a registered trademark of Apple Computer, Inc.
Teleos is a registered trademark of Teleos Communications, Inc.
Windows is a registered trademark of Microsoft corporation.
5ESS is a registered trademark of AT&T.
DMS-100 is a trademark of Northern Telecom.
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: (256) 963-8000
© 1998 ADTRAN, Inc.
All rights reserved.
Printed in USA.
FCC regulations require that the following information be provided in this manual:
1. This equipment complies with Part 68 of the FCC rules. On
the bottom of the equipment housing is a label that shows the
FCC registration number and Ringer Equivalence Number
(REN) for this equipment. If requested, provide this information to the telephone company.
2. If this equipment causes harm to the telephone network, the
telephone company may temporarily discontinue service. If
possible, advance notification is given, otherwise, notification is
given as soon as possible. The telephone company will advise
the customer of the right to file a complaint with the FCC.
3. The telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect the
proper operation of this equipment; advance notification and
the opportunity to maintain uninterrupted service is given.
4. If experiencing difficulty with this equipment, please contact
ADTRAN for repair and warranty information. The telephone company may require this equipment to be disconnected from the network until the problem is corrected, or it
is certain the equipment is not malfunctioning.
5. This unit contains no user serviceable parts.
6. An FCC compliant telephone cord with a modular plug is provided with this equipment. In addition, an FCC compliant cable appropriate for the dial backup option ordered is provided
with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using an FCC
compatible modular jack, which is Part 68 compliant.
7. The following information may be required when applying
to the local telephone company for leased line facilities.
Service T ype Digital Facility
Interface Code
Service Order Code Network Jacks
ISDN 02IS5 6.0F RJ-49C
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to
radio frequencies. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.
Changes or modifications to this unit not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
CANADIAN EMISSIONS REQUIREMENTS
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus," ICES-003 of the Department of Communications.
Cet appareil numerique respecte les limites de bruits radioelectriques applicables aux appareils
numeriques de Class A prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques," NMB-003 edictee par le ministre des Communications.
CANADIAN EQUIPMENT LIMITATIONS
Notice: The Canadian Industry and Science Canada label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network protective,
operational, and safety requirements. The Department does not guarantee the equipment will
operate to the user’s satisfaction.
Before installing this equipment, ensure that it is permissible to be connected to the facilities
of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’ s inside wiring associated with
a single-line individual service may be extended by means of a certified connector assembly
(telephone extension cord). Compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user
to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the
power utility , telephone lines, and internal metallic water pipe system, if present, are connected
together. This precaution may be particularly important in rural areas.
Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or an electrician, as
appropriate.
The Load Number (LN) assigned to each terminal device denotes the percentage of the total
load to be connected to a telephone loop which is used by the device, to prevent overloading.
The termination on a loop may consist of any combination of devices subject only to the
requirement that the total of the Load Numbers of all devices does not exceed 100.
Table of Contents
Chapter 1. Understanding ISDN and the ISU 2x64 ...................................................... 1
ISDN Overview ..................................................................................................................... 1
The ADTRAN ISU 2x64........................................................................................................ 1
ISU 2x64 Interoperability ..................................................................................................... 4
ISU 2x64 Single Port Operation........................................................................................... 4
Recommended Operating Protocols................................................................................... 6
Chapter 2. ISDN Service .................................................................................................... 9
ISDN Ordering Codes .......................................................................................................... 9
Chapter 3. Installation......................................................................................................13
Network Connection ......................................................................................................... 13
DTE Data Connection......................................................................................................... 14
Maintenance interface......................................................................................................... 15
Dial Interface Connection .................................................................................................. 16
Chapter 4. Operation ........................................................................................................17
Menu Navigation ................................................................................................................ 17
Front Panel DTE Indicators .......................................................................................... 18
VT 100 Menu Support ................................................................................................... 19
Getting Started..................................................................................................................... 19
Status Buffer.................................................................................................................... 20
Status Screen................................................................................................................... 21
Configuration Screen..................................................................................................... 22
Chapter 5. Testing .............................................................................................................23
Test Options ......................................................................................................................... 23
Loopback DTE................................................................................................................ 24
Loopback Network ........................................................................................................ 24
Loopback Protocol ......................................................................................................... 24
Loopback Remote........................................................................................................... 25
Test Remote..................................................................................................................... 25
Loopback Disable........................................................................................................... 25
NEBE/FEBE.................................................................................................................... 26
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
i
Table of Contents
Software Version ............................................................................................................ 26
Loopback Both DTEs ..................................................................................................... 26
Test 2047 Both................................................................................................................. 26
Chapter 6. Configuration .................................................................................................27
Dial Line Operation............................................................................................................. 27
Setting the Switch Protocol........................................................................................... 28
Setting the Call Type...................................................................................................... 31
Speech..................................................................................................................... 31
Audio ...................................................................................................................... 31
Data 56kbps............................................................................................................ 31
Data 64kbps............................................................................................................ 31
Smart Dial Strings .......................................................................................................... 32
Setting the Terminal ID ................................................................................................. 32
Setting the SPID..................................................................................................... 32
Setting the LDN..................................................................................................... 33
Setting the Busy Out Port.............................................................................................. 33
Enabled................................................................................................................... 34
Disabled.................................................................................................................. 34
Setting the Dial Options ................................................................................................ 34
Front Panel............................................................................................................. 34
RS-366 ..................................................................................................................... 34
AT Commands ...................................................................................................... 36
V.25.......................................................................................................................... 39
Disabled.................................................................................................................. 42
Setting Auto Answer ..................................................................................................... 42
Disabled................................................................................................................. 42
Enabled................................................................................................................... 43
Dump all calls........................................................................................................ 43
Setting Answer Tone...................................................................................................... 43
No Answer tone (Default) ................................................................................... 44
Incoming tone........................................................................................................ 44
Outgoing tone........................................................................................................ 44
Always tone ........................................................................................................... 44
Setting Connect Timout................................................................................................. 45
Setting Call Screening.................................................................................................... 45
SBus Termination ........................................................................................................... 46
Leased Line Service............................................................................................................ 47
Clock Mode: Slave/Master......................................................................................... 47
Channel Rate................................................................................................................... 48
SBus Termination ........................................................................................................... 49
DTE Options for Asynchronous and Synchronous Operation................................ 50
Bit Rate.................................................................................................................... 51
Connector Type..................................................................................................... 51
RTS Options........................................................................................................... 51
CTS Options........................................................................................................... 51
CD Options ............................................................................................................ 51
DTR Options.......................................................................................................... 52
ii
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Table of Contents
DSR Options .......................................................................................................... 52
Flow Control (asynchronous data format)........................................................ 52
Data Format (asynchronous)............................................................................... 53
Transmit Clock (synchronous data format)...................................................... 53
Autobaud ........................................................................................................................ 54
Setting Protocol Options ............................................................................................... 55
Clear Channel........................................................................................................ 56
BONDING mode 1 ............................................................................................... 56
TXINIT............................................................................................................. 57
TXFA................................................................................................................ 57
TXADD01........................................................................................................ 57
TXDEQ ............................................................................................................ 58
TANULL ......................................................................................................... 58
TCID ................................................................................................................ 58
Async. Rev. ..................................................................................................... 58
V.120 ....................................................................................................................... 58
V.110 ....................................................................................................................... 59
DSU 57.6 ASYNC.................................................................................................. 59
T-Link ..................................................................................................................... 59
SAP.......................................................................................................................... 59
FALLBACK............................................................................................................ 60
Point-to-Point (PPP) Async-to-Sync................................................................... 61
Point-to-Point Protocol (PPP) ...................................................................... 62
Multilink PPP ................................................................................................. 62
PPP with Compression ................................................................................. 62
Chapter 7. Dial Options ................................................................................................... 63
Front Panel Dialing Options.............................................................................................. 63
Hang up line ................................................................................................................... 64
Dial number................................................................................................................... 64
Redial last #.................................................................................................................... 64
Answer Call .................................................................................................................... 64
Dial stored #.................................................................................................................... 64
Store/Review # .............................................................................................................. 64
Chapter 8. Quick Setup .................................................................................................... 65
Quick Setup Configuration................................................................................................ 65
Quick Setup.......................................................................................................................... 66
Dial 56K sync* ....................................................................................................... 66
Dial 64K sync* ....................................................................................................... 67
Dial 112K sync* ..................................................................................................... 67
Dial 128K sync* ..................................................................................................... 68
Dial 57.6 asyn*....................................................................................................... 68
Dial 115.2 asyn*..................................................................................................... 69
Fallback 57.6k*....................................................................................................... 69
Leased 64K............................................................................................................. 70
Ldm 64K Master.................................................................................................... 70
Factory Setup......................................................................................................... 71
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
iii
Table of Contents
Chapter 9. Security and Remote Configuration ..........................................................73
Security ................................................................................................................................. 73
Set Password................................................................................................................... 74
Lock Keypad ................................................................................................................... 74
Remote Config .................................................................................................................... 74
Cfg. Rmt. Unit................................................................................................................. 75
Set Password................................................................................................................... 75
Lpbk remote 1B............................................................................................................... 75
Lpbk remote 2B............................................................................................................... 75
Chapter 10. Troubleshooting...........................................................................................77
If Self Test Fails.............................................................................................................. 77
If The ISU 2x64 Does Not Read Ready....................................................................... 77
If the Wrong DTE Port Answers a Call....................................................................... 83
If you Cannot Connect Calls......................................................................................... 84
Chapter 11. Specifications
Network Interface.......................................................................................... 85
DTE Interface.................................................................................................. 85
Dialing Selections........................................................................................... 85
Data Rates (Network).................................................................................... 85
Data Rates (DTE)............................................................................................ 86
B Channel Aggregation................................................................................. 86
Rate Adaptation ............................................................................................. 86
Interoperability............................................................................................... 86
Switch Compatibility..................................................................................... 86
Display............................................................................................................. 87
Environmental................................................................................................ 87
Physical............................................................................................................ 87
Power............................................................................................................... 87
Appendix A. AT Commands........................................................................................... 89
Appendix B. Current Status Messages.......................................................................... 95
Appendix C. Status Buffer Messages ............................................................................99
Appendix D. S-Register List..........................................................................................109
Appendix E. Connector Pinouts ...................................................................................119
Appendix F. Ordering ISDN Without IOCs ..............................................................125
Acronyms ...........................................................................................................................135
Glossary..............................................................................................................................137
Index ...................................................................................................................................145
iv
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
List of Figures
Figure 1-1: ISU 2x64 Rear Panel .................................................................................. 2
Figure 1-2: ISU 2x64 Front Panel................................................................................. 4
Figure 1-3: ISU 2x64 Interoperability ......................................................................... 5
Figure 3-1: VT 100 Maintenance Help Screen ......................................................... 15
Figure 4-1: Current Status Menu............................................................................... 18
Figure 4-2: VT 100 Status Screen ............................................................................... 21
Figure 4-3: VT 100 Configuration Screen................................................................. 22
Figure 5-1: VT 100 Test Menu Screen ....................................................................... 23
Figure 5-2: Test Menu Tree ........................................................................................ 24
Figure 5-3: Loopback Points ...................................................................................... 24
Figure 6-1: Dial Line Menu Tree ............................................................................... 27
Figure 6-2: VT 100 Configuration Menu Screen ..................................................... 28
Figure 6-3: LCD Configuration Menu Tree ............................................................. 29
Figure 6-4: Dial Options, RS-366 Menu Tree........................................................... 35
Figure 6-5: Dial Options, V.25 bis Menu Tree......................................................... 39
Figure 6-6: Dial Line, Auto Answer Menu Tree ..................................................... 40
Figure 6-7: Data Bits Menu Tree................................................................................ 41
Figure 6-8: V.25 bis ASYNC Menu Tree................................................................... 41
Figure 6-9: Answer Tone Menu Tree........................................................................ 44
Figure 6-10: Connect Timout Menu Tree................................................................... 45
Figure 6-11: Call Screening Menu Tree ...................................................................... 45
Figure 6-12: SBus Termination Menu Tree................................................................ 46
Figure 6-13: Leased Line Menu Tree .......................................................................... 47
Figure 6-14: Limited Distance Modem Applications ............................................... 48
Figure 6-15: Leased Application with Channel Banks............................................. 48
Figure 6-16: Asynchronous DTE Options Menu Tree.............................................. 50
Figure 6-17: Synchronous DTE Options Menu Tree ................................................ 50
Figure 6-18: Flow Control Menu Tree ........................................................................ 53
Figure 6-19: Data Format Menu Tree ......................................................................... 53
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
v
List of Figures
Figure 6-20: Transmit Clock Menu Tree..................................................................... 54
Figure 6-21: Protocol Menu Tree................................................................................. 55
Figure 6-22: Protocol BONDING, Mode 1 Menu Tree............................................. 57
Figure 6-23: PPP Menu Tree........................................................................................ 61
Figure 7-1: VT 100 Dial Options Screen.................................................................... 63
Figure 7-2: Dial Menu Tree ........................................................................................ 63
Figure 8-1: Quick Setup Menu Tree.......................................................................... 65
Figure 9-1: Security Menu Tree ................................................................................. 73
Figure 9-2: Remote Config Menu Tree ..................................................................... 74
Figure E-1: EIA-232 Interface ................................................................................... 119
Figure E-2: RS-530 Interface..................................................................................... 120
Figure E-3: V.35 Interface.......................................................................................... 120
Figure E-4: RS-366 Interface...................................................................................... 121
Figure E-5: RJ-45 Dial Line Connector U Interface ................................................122
vi
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
List of Tables
Table 1-A: DTE Indicators....................................................................................... 3
Table 1-B: Recommended Operating Modes ....................................................... 7
Table 6-A: Rate Adaptation Protocols ................................................................... 60
Table 10-A: Troubleshooting Calls........................................................................... 84
Table E-A: EIA-232 Interface ................................................................................... 119
Table E-B: RS-530 Interface .................................................................................... 120
Table E-C: V.35 Interface.......................................................................................... 121
Table E-D: RS-366 Interface ..................................................................................... 122
Table E-E: RJ-45 Dial Line Connector U Interface ............................................... 122
Table E-F: RJ-45 Dial Line Connector S/T Interface ........................................... 123
Table E-G: Maintenance Connector........................................................................ 123
Table F-A: 5ESS Features ........................................................................................ 131
Table F-B: DMS Features......................................................................................... 132
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
vii
List of Tables
viii
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Chapter 1
Understanding ISDN and the ISU 2x64
ISDN OVERVIEW
The Integrated Services Digital Network (ISDN) is a public or private switched digital network. ISDN is an international standard
for digital communications, allowing a full range of enhanced services supporting voice, data, and image applications through
standard interfaces over a single pair of telephone wires. ISDN
provides a means of integrating these services and modernizing
communication networks for information movement and management efficiency.
THE ADTRAN ISU 2X64
ADTRAN’s ISU™ 2x64 is a stand-alone ISDN service unit that
connects data terminal equipment to the ISDN network. The ISU
2x64 is a dual-port ISDN terminal adapter available with an optional integrated NT1. The ISU 2x64 supports two applications at
data rates of up to 64 kbps on each DTE interface, or one application using a data rate greater than 64 kbps (maximum 128 kbps)
on a single DTE interface. Target applications for the ISU 2x64 include video conferencing, audio broadcasting, and as dual modem replacement.
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
1
Chapter 1.Understanding ISDN and the ISU 2x64
The ISU 2x64 features two RS-530/EIA-232 DTE interfaces and
two RS-366 dial interfaces (see Figure 1-1). An RS-530/EIA-232to-V.35 adapter is available to support V.35 DTE interfaces. Synchronous data transfer rates from 2400 bps to 128 kbps and asynchronous rates from 1200 bps to 115.2 kbps are supported on a
single DTE interface. Synchronous data transfer rates from 2400
bps to 64 kbps and asynchronous rates from 1200 bps to 57.6 kbps
are supported when using two DTE interfaces. For speeds over 64
kbps using a single DTE interface, the industry standard BONDING protocol aggregates the two 64 kbps B channels for a maximum of 128 kbps.
Dialing from the ISU 2x64 is accomplished in a variety of ways:
• Dialing manually from the front panel
• Dialing automatically from stored numbers
• Dialing through two RS-366 parallel dial interfaces (as in video conferencing applications)
• Dialing over the DTE interfaces using AT command
• V.25 bis in-band dialing (used in applications such as LAN/
WAN bridging)
• Dialing when DTR is asserted (some Bridge/Routers raise
DTR when bandwidth on their dedicated line is exceeded)
ISDN IFC POWER
MAINTENANCE
DTE#2
RS530A / RS232
RS366 DIALING PORT
DTE#1
RS530A / RS232
RS366 DIALING PORT
ISU 2x64 Rear Panel
ON
OFF
Figure 1-1
2
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Chapter 1. Understanding ISDN and the ISU 2x64
The ISU 2x64 allows the user to migrate ISDN into existing network services and data communications equipment. The ISU
2x64 interoperates with ISU 128s, Switched 56 DSUs, various
ISDN terminal adapters, and BONDING inverse multiplexers
(for example ASCEND®, PROMPTUS, and Teleos®). For
instance, in a video conferencing application, this compatibility
allows the ISU 2x64 to interoperate with networks utilizing two
Switched 56 DSUs.
The ISU 2x64 front panel accommodates a 2-line by 16-character
LCD display. Seven LED indicators monitor data flow and display the status of key DTE interface leads (see Table 1-A and Figure 1-2). A front panel keypad supports configuration, test
modes, test status, and dialing.
Table 1-A
DTE Indicators
Indicator Definition
RS Request to Send. Indicates the DTE is ready to
transmit.
CS Clear to Send. Indicates the ISU 2x64 is ready
to transmit.
TD Transmit Data. On when the DTE is transmitting
to the ISU 2x64.
RD Receive Data. On when the ISU 2x64 is receiv-
ing data from the far end.
CD Carrier Detect. On when the ISU 2x64 is con-
nected to a remote unit.
TR Data Terminal Ready from DTE. On when DTR is
active at DTE interface.
SR Data Set Ready.
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
3
Chapter 1.Understanding ISDN and the ISU 2x64
ISU 2X64
RS CS TD RD CD TR SR
ISU 2X64 INTEROPERABILITY
Telephone networks are evolving from analog technologies to
digital technologies such as ISDN. This transition is time-consuming and costly for the telephone companies and upgrading all locations and facilities is a lengthy process.
The ISU 2x64 bridges this transition by supporting communications with existing and future network services and equipment.
The ISU 2x64 supports communications with Switched 56 Service
and Switched 56 DSUs (2-wire and 4-wire) as well as various
ISDN terminal adapters, ISDN terminal equipment, and BONDING-compatible Inverse Multiplexers.
Figure 1-3 illustrates the ISU 2x64 operation in various switched
network services and customer premises products.
ENTER
CANCEL
123
456
789
0
*
#
ISU 2x64 Front Panel
Figure 1-2
ISU 2X64 SINGLE PORT OPERATION
The ADTRAN ISU 2x64 is designed to operate over multipoint
ISDN lines in North America that will require two Service Profile
Identification (SPID) numbers from the telephone company when
the ISDN lines are installed. These SPID numbers tell the ADTRAN ISU 2x64 which port or DTE# to route incoming and outgoing calls. See Ordering ISDN Without IOCs on page 125 for further
details on ordering multipoint ISDN service.
4
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Chapter 1. Understanding ISDN and the ISU 2x64
Figure 1-3
*
123
456
789
ENTER
DSU
#0
CANCEL
RS CS TD RD LD TR SR
ISU 2x64 Interoperability
*
123
456
789
#0
ENTER
CANCEL
ISU
RS CS TD RD LD TR SR
*
123
456
789
#0
ENTER
CANCEL
123
ENTER
ISU
456
789
RS CS TD RD LD TR SR
*
#0
CANCEL
DSU
RS CS TD RD LD TR SR
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
5
Chapter 1.Understanding ISDN and the ISU 2x64
When the ISU 2x64 is used on an existing ISDN line that is not
multipoint, with one SPID or no SPID numbers, additional considerations should be addressed. If DTE specific operation is
desired, the ISDN line must be converted to multipoint operation
(2 SPIDS). If not, the following applies:
1. If a single SPID is assigned, it must be entered under SPID
DTE#2 .
2. When no calls are active, the first incoming call is always directed to DTE#2 .
3. DTE#1 only accepts incoming calls when a call is active on
DTE#2 .
4. Outgoing calls can be placed without restrictions from either
port.
For applications involving only one SPID being used on a multipoint line, the SPID assigned must be entered under SPID
DTE#2 . For applications involving the S/T version (part number
1200.051L5 and 1200.051L6), no SPID(s) are used when the Euro
ISDN or VN4 switch type is selected. The call will be routed to
the appropriate port based on the directory number entered
under the local directory number (LDN) prompt . See the section
Setting the Terminal ID on page 32 for more detail on entering
SPID numbers.
RECOMMENDED OPERATING PROTOCOLS
The ISU 2x64 supports a wide range of operating modes. Many
combinations of circuit type, protocol, and data rate may be
selected. However, only the combinations shown in Table 1-B are
recommended. As noted in Table 1-B, all asynchronous rates support flow control. Flow control is required when operating at
115200 bps using V.120, PPP, MLPPP, SAP, or BONDING protocols.
Table 1-B shows that a given data rate may be achieved by more
than one protocol/rate adaptation selection. The table is organized so that selections with lower throughput delay are nearer
the top of the table for any given circuit type. Therefore, users
should choose a protocol and rate nearer the top of the list for any
given circuit type.
6
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
7
Chapter 1. Understanding ISDN and the ISU 2x64
Table 1-B
Recommended Operating Modes
Call Type Protocol
DIAL-64K BONDING Sync 56000 64000
Clear Chan Sync 48000 56000 64000
PPP Sync 2400 4800 9600 19200 38400 56000 64000
V.110 Sync 2400 4800 9600 19200 38400
V.120 Sync 9600 19200 38400 48000
Tlink Sync 2400 4800 9600 19200 56000 64000
SAP Sync 38400
PPP async-sync Async 1200 2400 4800 9600 19200 38400 57600 115200f
BONDING Async 2400 4800 9600 19200 38400 57600
V.110 Async 1200 2400 4800 9600 19200 38400v
V.120 Async 1200 2400 4800 9600 19200 38400 57600 115200f
Tlink Async 1200 2400 4800 9600 19200
SAP Async 38400 57600 115200f
DIAL-56K BONDING Sync 56000
Clear Chan Sync 48000 56000
PPP Sync 2400 4800 9600 19200 38400 56000
V.110 Sync 2400 4800 9600 19200
V.120 Sync 9600 19200 38400 48000
TLINK Sync 2400 4800 9600 19200 56000
PPP async-sync Async 1200 2400 4800 9600 19200 38400 57600 115200f
BONDING Async 2400 4800 9600 19200 38400 57600
DSU 57.6 Async 57600
V.110 Async 1200 2400 4800 9600 19200
V.120 Async 1200 2400 4800 9600 19200 38400 57600 115200f
Tlink Async 1200 2400 4800 9600 19200
DIAL-64K*2 BONDING Sync 128000
MPPP Sync 128000
MPPP Async 115200
BONDING Async 115200
DIAL-56K*2 BONDING Sync 112000
MPPP Sync 112000
MPPP Async 115200
BONDING Async 115200
LEASED 64K Clear Chan Sync 48000 56000 64000
SAP Sync 2400 4800 9600 19200 38400
DSU 57.6 Async 57600
SAP Async 1200 2400 4800 9600 19200 38400 57600f 115200f
LEASED 128K Clear Chan Sync 128000
SAP Async 57600f 115200f
Sync/
Async
Rates Supported (bps)
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
Chapter 1.Understanding ISDN and the ISU 2x64
1. All asynchronous rates support flow control.
2. All dial-up modes support front panel, DTR, RS-366, AT
command, and V.25 dialing methods.
3. Rates marked with f require flow control.
4. Given a choice between two protocols, pick the protocol closer
to the top of the list.
5. Rate marked with v is available on Port 2 only.
8
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Chapter 2
ISDN Service
ISDN ORDERING CODES
ISDN is a complex service with many network options. Obtaining service from the local telephone company and long distance
providers can be complicated.
In North America, the development of ISDN ordering codes
(IOCs) simplifies the process of ordering ISDN service. The ISDN
Solutions Group, a consortium of ISDN equipment vendors, service providers, and Bellcore, established these codes to represent
predetermined line configurations for ISDN Basic Rate service for
specific applications.
ADTRAN and Bellcore have registered and tested eight generic
IOCs. These IOCs are supported by all major local exchange carriers as well as several independent carriers. After reviewing the
following list, order ISDN lines from the local service provider.
Request the appropriate IOC for your application. If the local service provider does not support IOCs, see Ordering ISDN Without
IOCs on page 125.
Capability S (previously Generic Data M ) ordering code is rec-
ommended for 2x64 applications. It is the most feature-rich and
supports most voice and data applications. The voice capability
is not necessary for ISU operation in 2x64 in data-only application, however it is useful in troubleshooting a mis-configured
ISDN line. In some areas, ISDN tariffs may warrant the use of
ordering codes with less features. For example, in a particular
region, there may be additional monthly expense associated with
having voice service on each B channel. If you have a data-only
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
9
Chapter 2.ISDN Service
application, then
Capability R (previously Generic Data I ) may
be more cost-effective.
ADTRAN has registered the following ISDN ordering codes to
support a variety of tariffs and applications:
Capability S (previously Generic Data M)
• 2B service
• Both B channels alternating voice and data
• Two directory numbers
Applications
• Host data center, internet access, bulletin board, and modem
pooling applications
• Modem capability
• Generic data transfer, including remote access and LAN/
WAN connectivity and telecommuting
Capability R (previously Generic Data I)
• 2B service
• Data only
• Two directory numbers
Applications
10
• Host data center, internet access, bulletin board, and modem
pooling applications
• Data only applications, no modem capability
• Data transfer applications, including remote access and
LAN/WAN connectivity, telecommuting
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
B1 (previously Generic Data B)
• 1B service
• Data only
• One directory number
Capability C (previously Generic Data C)
• 1B service
• Alternating voice and data
• One directory number
Chapter 2. ISDN Service
I2 (previously Generic Data I-1DN)
• 2B service
• Data only
• One directory number
I2 is not available for services provided by a Northern Telecom switch. Two
directory numbers are required for 2B operation. In this case, use Capabil-
ity R.
J3 (previously Generic Data J-1DN)
• 2B service
• 1B alternating voice/data, 1B data only
• One directory number
J3 is not available for services provided by a Northern Telecom switch. Two
directory numbers are required for 2B operation. In this case, use J2 .
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
11
Chapter 2.ISDN Service
J2 (previously Generic Data J)
• 2B service
• 1B alternating voice/data, 1B data only
• Two directory numbers
M5 (previously Generic Data M-1DN)
• 2B Service
• 1B alternating voice/data, 1B data only
• One directory number
M5 is not available for services provided by Northern Telecom or AT&T
switches.
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ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
Chapter 3
Installation
After unpacking the unit, immediately inspect it for possible
shipping damage. If damage is discovered, file a claim immediately with the shipping carrier, then contact ADTRAN Technical
Support.
Each ISU 2x64 is provided with an eight-foot power cord terminated by a three-prong plug which connects to a grounded power
receptacle.
ADTRAN ISU 2x64 part numbers 1200051L1, 1200051L2, and
1200051L5 require a grounded 115 VAC, 60 Hz receptacle for
power.
ADTRAN ISU 2x64 part numbers 1200051L3, 1200051L4 and
1200051L6 require a 230 VAC, 50 Hz receptacle for power.
NETWORK CONNECTION
An eight-pin RJ-45 modular jack on the rear panel of the ISU 2x64
allows connection to ISDN Basic Rate service provided by the
telephone company or to a leased type of service. This leased service can be dedicated 2B1Q data service or a nailed-up circuit that
provides a dedicated connection between end points such as a
limited distance modem or LAD circuit.
If using ISU 2x64, part number 1200051L1 or 1200051L3, connect
the telephone company provided ISDN Basic Rate U-Interface to
the RJ-45 connector marked ISDN IFC. An external NT1 is not
needed in this configuration.
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual
13
Chapter 3.Installation
If using ISU 2x64, part number 1200051L2, 1200051L4, 1200051L5,
or 1200051L6, connect an ISDN Basic Rate S/T interface to the RJ45 connector marked ISDN IFC. The S/T interface can be provided from an S/T line card of an ISDN switch or PBX, or from an
NT1 network termination unit.
If using a leased service, connect the network interface to the RJ45 connector marked ISDN IFC.
See Connector Pinouts on page 119 for network connection pin
assignments.
DTE DATA CONNECTION
Data terminal equipment (DTE) is connected to the ISU 2x64 by
using the RS-530/EIA-232 interfaces or by using the external RS530-to-V.35 adapters (part number 1200072L1). A maximum
cable length of 50 feet is recommended for the RS-530/EIA-232
interfaces. If using the RS-530-to-V.35 adapter and connected to a
full specification V.35 interface, the maximum recommended
cable length is 15 feet. The pin assignments for the DTE interfaces are shown in Connector Pinouts on page 119. Be sure to configure the menu option for the connector type used in your
application. See DTE Options for Asynchronous and Synchronous
Operation on page 50.
The RS-530/EIA-232 interface and the RS-530-to-V.35 interface
supports data rates up to 128 kbps. The DTE rate is configured
from the front panel of the ISU 2x64 or by using AT commands.
See Configuration to configure the ISU 2x64 with the appropriate
data rates for your application.
To prevent possible radio frequency interference emissions, a shielded
V.35 cable is required.
14
ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
MAINTENANCE INTERFACE
The Maintenance interface is available at 9600 bps, 8 data bits, no
parity, no flow control, asynchronous format through the Maintenance port. See Connector Pinouts on page 119 for the pinout of
the Maintenance port. A VT 100 terminal or null modem can be
connected to the Maintenance port using an EIA-232 cable. This
interface can be used to set internal S-registers, dial ISDN connections, and disconnect calls. This port also allows ADTRAN Technical Support personnel to retrieve vital information from the
unit if a problem is encountered during initial configuration of
the ISU 2x64. Most problems can be solved without resorting to
this port for assistance.
The ISU 2x64 Maintenance Help Screen can be activated by typing !? at either the DTE#1 or DTE#2 prompt. The screen is shown
in Figure 3-1.
Chapter 3. Installation
Figure 3-1
VT 100 Maintenance Help Screen
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 15
Chapter 3.Installation
DIAL INTERFACE CONNECTION
If out-of-band RS-366 dialing is required for applications such as
videoconferencing or FAX machines, the dialing interfaces of the
host DTE should be connected to the dial ports marked RS-366.
Pin assignments for the RS-366 connector are listed in the appendix, Connector Pinouts.
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ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D
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