Paradyne 336x E1 User Manual
ACCULINK
336x E1 NETWORK
TERMINATION UNIT
OPERATOR’S GUIDE
Document No. 3360-A2-GB20-20
December 1996
ACCULINK 336x E1 NTU
ACCULINK
336x E1 Network Termination Unit
Operator’s Guide
3360-A2-GB20-20
3rd Edition (December 1996)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release.
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty ,
sales, service, repair, installation, documentation, or training, use one of the following methods:
• Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
• Via Telephone: Call our automated call system to receive current information via fax or to speak with a company
representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 727-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service
marks of their respective owners.
Printed on recycled paper
COPYRIGHT 1996 Paradyne Corporation. All rights reserved.
This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system,
or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties
without the express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo, Florida 33779-2826.
Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability
or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.
A December 1996 3360-A2-GB20-20
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or included in the
manual.
2. When an AC power source is used, this product is intended to be used with a three-wire
grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment
grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type
plug by modifying the plug or using an adapter.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the
presence of earth ground. If the receptacle is not properly grounded, the installation must not
continue until a qualified electrician has corrected the problem.
If a three-wire grounding type power source is not available, consult a qualified electrician to
determine another method of grounding the equipment.
3. Slots and openings in the cabinet are provided for ventilation. T o ensure reliable operation of
the product and to protect it from overheating, these slots and openings must not be blocked
or covered.
4. Do not allow anything to rest on the power cord and do not locate the product where persons
will walk on the power cord.
Important Instructions
5. Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous high voltage points or other risks. Refer all servicing to qualified service
personnel.
6. General purpose cables may be provided with this product. Special cables, which may be
required by the regulatory inspection authority for the installation site, are the responsibility
of the customer. Use a Listed, minimum No. 26 AWG line cord for connection to the High
bit-rate Digital Subscriber Line (HDSL) network.
7. When installed in the final configuration, the product must comply with the applicable Safety
Standards and regulatory requirements of the country in which it is installed. If necessary,
consult with the appropriate regulatory agencies and inspection authorities to ensure
compliance.
8. A rare phenomenon can create a voltage potential between the earth grounds of two or more
buildings. If products installed in separate buildings are interconnected, the voltage potential
may cause a hazardous condition. Consult a qualified electrical consultant to determine
whether or not this phenomenon exists and, if necessary, implement corrective action prior to
interconnecting the products.
9. Input power to the AC voltage configuration of this product must be provided by one of the
following: (1) a UL Listed/CSA certified power source with a Class 2 or Limited Power
Source (LPS) output for use in North America, or (2) a certified power source with a Safety
Extra Low Voltage (SELV) output for use in the country of installation.
Input power to the DC voltage configurations of this product must be provided by one of the
following: (1) a National Electric Code (NEC)/Canadian Electric Code (CEC) Class 2 circuit
for use in North America, or (2) a certified Safety Extra Low Voltage (SELV) circuit input for
use in the country of installation.
10. This product contains a coin cell lithium battery that is only to be replaced at the factory.
Caution: There is a danger of explosion if the battery is incorrectly replaced. Replace only
with the same type. Dispose of used batteries according to the battery manufacturer’s
instructions. Attention: Il y a danger d’explosion s’il y a remplacement incorrect de la
batterie. Remplacer uniquement avec une batterie du même type. Mettre au rebut les batteries
usagées conformément aux instructions du fabricant.
B3360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
Notices
In addition, if the equipment is to be used with telecommunications circuits, take the following
precautions:
– Never install telephone wiring during a lightning storm.
– Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
– Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
– Use caution when installing or modifying telephone lines.
– Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electric shock from lightning.
– Do not use the telephone to report a gas leak in the vicinity of the leak.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPL Y 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 COMMUNICATIONS. 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.
THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENTS THAT NO
MODIFICATIONS WILL BE MADE T O THE EQUIPMENT UNLESS THE CHANGES OR MODIFICATIONS ARE EXPRESSLY
APPROVED BY PARADYNE.
TO USERS OF DIGITAL APPARATUS IN CANADA:
THIS CLASS A DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING
EQUIPMENT REGULATIONS.
CET APPAREIL NUMÉRIQUE DE LA CLASSE A RESPECTE TOUTES LES EXIGENCES DU RÉGLEMENT SUR LE
MATÉRIEL BROUILLEUR DU CANADA.
C December 1996 3360-A2-GB20-20
Table of Contents
Preface
Objectives and Reader Assumptions iii. . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Documents iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Examples 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Connection Examples 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important Instructions 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Power Sources 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Examples 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Self-Test 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Operation
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Front Panel 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Unit Identity 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying LED Conditions 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the G.703 DTE or Data Port for LED Display 3-11. . . . . . . . . .
Changing Configuration Options 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the E1 NTU for SNMP Management 3-14. . . . . . . . . . . . . .
Configuring SNMP Traps 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring DS0 Channels 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Timing Source 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquiring/Releasing the User Interface 3-35. . . . . . . . . . . . . . . . . . . . . . .
Resetting the E1 NTU 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Download Operations 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
i3360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
4. Maintenance
Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-Test Health 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Health and Status 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDSL Loop Performance 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Reports 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarms 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Traps 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Jacks 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Commands 4-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Loopback T ests 4-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local Loopback T ests 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Patterns 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Test 4-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying E1 NTU T est Status 4-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
Glossary
Index
A. %"!' ! !( *
B. ! #'"!& *
C. "!(%'"! #'"!& *
D. ! &&! !'& *
E. '& *
F. ')"% %&&! !%" *
G. %"!' ! ('"! *
H. $(# !' &' *
ii December 1996 3360-A2-GB20-20
Preface
Objectives and Reader
Assumptions
This operator’s guide contains installation, operation,
and maintenance information for the ACCULINK 336x
E1 Network T ermination Unit (NTU).
It is assumed that you are familiar with the operation of
digital data communication equipment and NTUs in
particular. You should also be familiar with Simple
Network Management Protocol (SNMP) if you want your
E1 NTU to be managed by an SNMP manager.
Related Document
7800-A2-GB20 ACCULINK 3100 Series Open
Management Application for
HP OpenView User’s Guide
Reference Documents
• CSA-22.2 No. 950-M89
• CSA 108-M1983
• FCC Part 15
• UL 1950
• Management Information Base for Network
Management of TCP/IP-Based Internets: MIBII.
RFC 1213, March 1991
• Definitions of Managed Objects for the DS1 and E1
Interface T ypes . RFC 1406, January 1993
• Definitions of Managed Objects for RS-232-like
Hardware Devices. RFC 1317, April 1992
• Extensions to the Generic-Interface MIB.
RFC 1229, May 1991
iii3360-A2-GB20-20 December 1996
Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G.703 DTE Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm Message Capability 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Emulation 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Management Support 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Overview
The E1 NTU acts as an interface between a High
bit-rate Digital Subscriber Line (HDSL) network and the
customer’s Data Terminal Equipment (DTE), converting
signals received from the DTE into the two binary, one
quaternary (2B1Q) signal format for transmission over the
HDSL network.
The E1 NTU’s G.703 DTE interface supports
2.048 Mbps (E1) data that is compatible with the signal
format of ITU Recommendation G.703 and the frame
structure of ITU Recommendation G.704.
In addition to the G.703 DTE interface, the 336x E1
NTUs have one to four EIA 530A synchronous data ports
that may be configured for rates of 64 kbps to 1984 kbps.
The 336x Series consists of a Model 3360 NTU
(2-port), a Model 3364 NTU (4-port), and a Model 3365
NTU (1-port). Differences between these models are
discussed where applicable throughout this guide.
Features
The E1 NTU optimizes network performance with a
wide range of features such as the following:
• Software configuration menu displayed via a liquid
crystal display (LCD) to permit quick and easy
operation, and elimination of complicated hardware
strapping.
• Local or remote configuration and operation
flexibility.
• Several loopback capabilities and test pattern
generators.
• G.703 DTE capability.
• Alarm message display/print capability.
• Front panel emulation via Windows-based Front
Panel Emulation software.
• Network management provided through
industry-standard Simple Network Management
Protocol (SNMP).
1-13360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
G.703 DTE Interface
The G.703 DTE interface is compatible with the signal
format of ITU Recommendation G.703 and the frame
structure of ITU Recommendation G.704. This interface
allows DTEs/PBXs to share the network with other
high-speed equipment.
Alarm Message Capability
The E1 NTU can be attached, either locally or
remotely , to an ASCII terminal or printer to display or
print alarm messages. The communications (COM) port
can be used as the destination for Alarm Set and Alarm
Clear messages. This enables an ASCII terminal or printer
to monitor the E1 NTU for alarm conditions. Alarms can
also be displayed on a PC that is using a terminal
emulation package.
Front Panel Emulation
The E1 NTU offers functionality through Front Panel
Emulation software that is similar to that provided by the
E1 NTU front panel. The E1 NTU can either be locally or
remotely attached to a 386 or higher personal computer
(PC) that has at least four megabytes (MB) of
random-access memory (RAM). (An external modem is
required for remote attachment.) A copy of the E1 NTU
front panel appears on the PC. The functionality of the
front panel is available by clicking on the function keys
with the mouse rather than by pressing keys from the
actual front panel. For more information, refer to
Appendix G, Front Panel Emulation.
SNMP Management Support
SNMP is a network management protocol that is used
to monitor network performance and status, and to report
alarms (i.e., traps). T o function, SNMP requires a manager
consisting of a software program housed within a
workstation or PC; an agent consisting of a software
program housed within a device (e.g., the E1 NTU); and a
Management Information Base (MIB) consisting of a
database of managed objects.
Users of the external SNMP manager can issue “Get”
and “Set” commands to an object in the SNMP database
maintained by the E1 NTU.
The E1 NTU can be managed by any industry-standard
SNMP manager. Paradyne provides an SNMP application
that runs on a Hewlett-Packard HP OpenView network
management platform. For more information, refer to the
ACCULINK 3100 Series Open Management Application
for HP OpenView User’s Guide.
The E1 NTU supports the following MIBs:
• MIB II – Defines the general objects for use in
Transmission Control Protocol/Internet Protocol
(TCP/IP) internets and provides general
information about the E1 NTU. MIB II is
backward-compatible with MIB I.
• DS1/E1 MIB – Defines objects for managing E1
interfaces and supports the network and G.703 DTE
interfaces on the E1 NTU.
• RS-232-like MIB – Defines objects for managing
RS-232-type interfaces (e.g., RS-422, RS-423, etc.)
and supports synchronous data ports (PORTs 1– 4)
and management communication ports (AUX and
COM ports) on the E1 NTU.
• Generic-Interface Extension MIB – An extension to
MIB II that defines additional objects for control of
generic interfaces in MIB II. It supports control of
tests on the G.703 DTE and synchronous data
interfaces that are not supported by other MIBs.
• Enterprise MIB – Defines objects that are unique to
Paradyne devices.
Two link layer protocols, Point-to-Point Protocol (PPP)
and Serial Line Internet Protocol (SLIP), are supported for
connection to an external SNMP manager or network
device (e.g., a router).
The SNMP manager or network device can be directly
connected to the communications (COM) port. An
external LAN Adapter can be connected to either the
COM port or the auxiliary (AUX) port to provide Ethernet
connectivity. Also, the E1 NTU can be daisy chained
together by connecting the COM port of one device to the
AUX port of the other, providing SNMP connectivity.
The SNMP management system can communicate to
the E1 NTU remotely through the Facility Data Link
(FDL) or (for 2-port and 4-port E1 NTUs) the
synchronous data port’s Embedded Data Link (EDL).
FDL provides an in-band channel for performance and
control signals on the network interface. It uses the spare
in time-slot zero as defined in ITU
bit S
a4
Recommendation G.704. EDL provides the ability to
detect and synchronize on a framing pattern, provides
cyclic redundancy checking (CRC), and maintains
near-end and far-end performance statistics.
1-2 December 1996 3360-A2-GB20-20
Introduction
1
Physical Description
The 336x Series consists of a Model 3360 NTU
(2-port), a Model 3364 NTU (4-port), and a Model 3365
NTU (1-port).
Front Panel
The E1 NTU front panel (Figure 1-1) contains,
• One 2-line, 16-alphanumeric-character-per-line
liquid crystal display (LCD)
• One 7-button keypad (three Function and four
directional keys)
• Twelve light-emitting diodes (LEDs)
• Six test jacks
Rear Panel
The E1 NTU rear panel contains the connectors and
switches required for the operation of the E1 NTU
(Figures 1-2, 1-3, and 1-4). The connectors and switches
are described in Table 1-1.
LCD
KEYPAD
F1 F2 F3
E1
HDSL
LINEE1MON
LINE
Lp1
Lp2InOutInOut
TEST JACKS LEDs
OK
FAIL TEST SIG1 OOF ALRM
Figure 1-1. Front Panel
SIG2 SIG ALRM PDVOOF BPV
NETWORK RXD
DTR TXD CTS RTS
496-14728-0
1-33360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
3
4
AUX
POWER
CAUTION: AUX PORT OR COM PORT MUST
NOT BE CONNECTED TO HDSL NETWORK
PORT
COM
PORT
Figure 1-2. Model 3360 Rear Panel
G.703
TX RX
75
RX SHIELD
Ω
OPEN
EARTH
120
IN
OUT
75
Ω
Ω
120
Ω
PORT 3 PORT 4
PORT 2PORT 1CLOCK IN
75
Ω
HDSL
NETWORK
495-1473
AUX
POWER
CAUTION: AUX PORT OR COM PORT MUST
NOT BE CONNECTED TO HDSL NETWORK
PORT
COM
PORT
Figure 1-3. Model 3364 Rear Panel
G.703
TX RX
75
RX SHIELD
Ω
OPEN
EARTH
120
IN
OUT
75
Ω
Ω
120
Ω
PORT 3 PORT 4
PORT 2PORT 1CLOCK IN
75
Ω
HDSL
NETWORK
495-1473
1-4 December 1996 3360-A2-GB20-20
2
POWER
PORT 1
AUX
PORT
COM
PORT
120
Ω
Figure 1-4. Model 3365 Rear Panel
TX RX
RX SHIELD
OPEN
EARTH
75
Ω
G.703
120
IN
OUT
75
Introduction
Ω
Ω
HDSL
NETWORK
495-1473
75
Ω
Table 1-1
Rear Panel Connectors and Switches
Name
POWER Supplies power to the E1 NTU by providing an attachment for the ac power
module or the optional dc power cable (+24 or –48 Vdc).
AUX PORT Supports SNMP LAN Adapter or daisy-chain connections.
COM PORT Provides access to a locally connected PC, an ASCII terminal or printer, or an
SNMP management link.
HDSL NETWORK Provides access to the HDSL network.
G.703—120Ω
G.703—120Ω/75Ω (switch)
G.703—75Ω TX/RX
G.703—RX SHIELD (switch) Selects either an “open” or “earth” shield connection for the 75 ohm RX interface.
CLOCK IN (Models 3360/3364) Used to attach an external clock to the E1 NTU.
PORTs 1–4 Used to connect the customer’s synchronous data DTE to the E1 NTU.
Provides a 120 ohm balanced G.703 interface.
Selects either a 120 ohm balanced G.703 interface (the switch is IN) or a 75 ohm
unbalanced G.703 interface (the switch is OUT).
Provides two BNC connectors (Transmit and Receive) for a 75 ohm unbalanced
G.703 interface.
(This switch must be set to “open” when using the 120 ohm interface.)
Function
1-53360-A2-GB20-20 December 1996
Installation
1
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Examples 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Connection Examples 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important Instructions 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Power Sources 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the +24 Vdc Power Supply 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Single –48 Vdc Power Supply 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Redundant –48 Vdc Power Supply 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Examples 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Self-Test 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Overview
This chapter contains information for installing your
E1 NTU. It includes application examples, cabling, and
power-up information.
Application Examples
The E1 NTU acts as an interface between a High
bit-rate Digital Subscriber Line (HDSL) network and the
customer’s equipment.
PBX
The E1 NTU is connected to the customer’s equipment
through one of the synchronous data ports (PORTs 1– 4)
or the G.703 DTE port. It is connected to the network
through the HDSL Network interface.
The E1 NTU normally operates in conjunction with a
Line T ermination Unit (LTU) that is installed in an
ACCULINK Access Controller (AAC).
Some common applications for the E1 NTU are:
• Shared access to network-based services
(Figure 2-1).
• Point-to-Point LAN interconnection (Figure 2-2).
• Fractional E1 network applications (Figure 2-3).
NETWORK
SERVICES
HDSL
AAC
LTU
LAN
ROUTER
NTU
496-14736-0
Figure 2-1. Shared Access Application Example
2-13360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
1
1
NETWORK
HDSL HDSL
AAC
LTU
AAC
LTU
LAN
ROUTER
ROUTER
ROUTER
LAN
LAN
NTU
Figure 2-2. Point-to-Point Application Example
HDSL
NTU
FRACTIONAL
NETWORK
AAC
LTU
E1
DSU/CSU
E1
NTU
DSU/CSU
LAN
ROUTER
496-14735-0
LAN
ROUTER
LAN
ROUTER
496-14737-0
Figure 2-3. Fractional E1 Application Example
2-2 December 1996 3360-A2-GB20-20
Installation
SNMP Connection Examples
The E1 NTU can be connected to an SNMP
management system in a number of ways. Some examples
include:
• Directly connecting the COM port to the SNMP
manager (Figure 2-4).
• Connecting the COM port to a network device (e.g.,
a router) for SNMP management (Figure 2-5).
• Connecting the COM port or the AUX port to an
external LAN Adapter for Ethernet SNMP
connectivity (Figure 2-6).
SNMP
ETHERNET
LAN
ROUTER
SNMP
PPP/SLIP
• Daisy chaining the COM port of one device to the
AUX port of the other to provide SNMP
connectivity (Figure 2-7).
• Remotely managing the E1 NTU through the
Facility Data Link (FDL) or the synchronous data
port’s Embedded Data Link (EDL) ( Figure 2-8 ).
NOTE
EDL is only available on 2-port
and 4-port E1 NTUs.
NTU
HDSL
NETWORK
AAC
LTU
496-14738-01
Figure 2-4. Direct Connection to an SNMP Manager
SNMP
ETHERNET
LAN
ROUTER
NTU
SNMP
PPP/SLIP
Figure 2-5. Connection through a Router to SNMP
HDSL
NETWORK
AAC
LTU
496-14739-01
2-33360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
1
SNMP
NMS
ETHERNET
LAN
ROUTER
LAN
ADAPTER
NTU
HDSL
SNMP
PPP
Figure 2-6. Connection through a LAN Adapter to SNMP
NTU
HDSL
NETWORK
AAC
LTU
496-14740-01
NTU
SNMP
NMS
ETHERNET
LAN
ROUTER
LAN
ADAPTER
SNMP
PPP
SNMP
PPP
SNMP
PPP
NTU
HDSL
NTU
HDSL
Figure 2-7. LAN Adapter and Daisy Chaining for SNMP Support
LAN
ROUTER
LAN
ADAPTER
ETHERNET
HDSL
SNMP
FDL/EDL
NETWORK
AAC
LTU
AAC
NTU
HDSL
LTU
SNMP
PPP
AAC
LTU
AAC
LTU
AAC
LTU
NETWORK
496-14741-01
496-14742-0
Figure 2-8. Remote SNMP Management through FDL/EDL
2-4 December 1996 3360-A2-GB20-20
Installation
3
Important Instructions
Read and follow all warning notices and instructions
marked on the E1 NTU or included in this guide.
For a complete listing of the safety instructions, see the
Important Safety Instructions section at the beginning of
this guide.
HANDLING PRECAUTIONS
FOR
ST ATIC-SENSITIVE DEVICES
This product is designed to protect
sensitive components from damage
due to electrostatic discharge (ESD)
during normal operation. When
performing installation procedures,
however, take proper static control
precautions to prevent damage to
equipment. If you are not sure of the
proper static control precautions,
contact your nearest sales or service
representative.
Using the optional dc power cable, the E1 NTU is
capable of operating on either a +24 Vdc power source,
–48 Vdc single source battery, or –48 Vdc redundant
source batteries (for power backup). T o select the power,
choose one of the following power supply types.
Installing the +24 Vdc Power Supply
To install the E1 NTU using a +24 Vdc power supply,
refer to Figure 2-9 and use the following procedure.
To install the +24 Vdc power supply,
1. Connect the green wire to a suitable earth ground.
2. Connect the white wire to the +24 Vdc return.
3. Connect the orange wire to the +24 Vdc source.
4. Cut the black, red and blue wires off at the outer
insulation.
5. Plug the power connector into the E1 NTU.
Optional Power Sources
The E1 NTU is typically powered by the ac power
module. Use the following procedures only if you want
to use an optional dc power source.
NTU POWER
PLUG
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
CABLE NUMBER 3100-F1-520
Figure 2-9. +24 Vdc Power Supply Pinouts
TO CUSTOMER-SUPPLIED BATTERY
X
X
EARTH GROUND
+24 VDC RETURN
+24 VDC SOURCE
X
495-1474
2-53360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
4
Installing the Single –48 Vdc Power Supply
To install the E1 NTU using a single source –48 Vdc
power supply, refer to Figure 2-10 and use the following
procedure.
To install the –48 Vdc single source power supply,
1. Connect the black and red wires to the –48 Vdc
return source.
NTU POWER
PLUG
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
CABLE NUMBER 3100-F1-520
2. Connect the green wire to a suitable earth ground.
3. Connect the orange and blue wires to the –48 Vdc
input source.
4. Cut the white wire off at the outer insulation.
5. Plug the power connector into the E1 NTU.
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN
EARTH GROUND
X
–48 VDC INPUT
495-1474
Figure 2-10. – 48 Vdc Single Source Power Supply Pinouts
2-6 December 1996 3360-A2-GB20-20
Installation
5
Installing the Redundant –48 Vdc Power
Supply
To install the E1 NTU using a redundant –48 Vdc
power supply, refer to Figure 2-11 and use the following
procedure.
To install the redundant –48 Vdc power supply,
1. Connect the black wire to the –48 Vdc return
source B.
2. Connect the red wire to the –48 Vdc return
source A.
NTU POWER
PLUG
1
2
3
4
5
6
BLACK
RED
GREEN
WHITE
ORANGE
BLUE
3. Connect the green wire to a suitable earth ground.
4. Connect the orange wire to the –48 Vdc input
source B.
5. Connect the blue wire to the –48 Vdc input
source A.
6. Cut the white wire off at the outer insulation.
7. Plug the power connector into the E1 NTU.
TO CUSTOMER-SUPPLIED BATTERY
–48 VDC RETURN B
–48 VDC RETURN A
EARTH GROUND
X
–48 VDC INPUT B
–48 VDC INPUT A
CABLE NUMBER 3100-F1-520
495-1474
Figure 2-11. –48 Vdc Redundant Source Power Supply Pinouts
2-73360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
6
Cabling Examples
The E1 NTU is supplied with an ac power module.
Optional cables that you can order from the company
are described in Appendix D, Pin Assignments.
Figure 2-12 illustrates some cabling examples.
COM PORT
COM
AUX
POWER
CAUTION: AUX PORT OR COM PORT MUST
NOT BE CONNECTED TO HDSL NETWORK
PORT
PORT
120Ω
PORT 3 PORT 4
PORT 1 PORT 2CLOCK IN
HDSL
NETWORK
G.703
TX RX
RX SHIELD
OPEN
EARTH
75Ω
HDSL
NETWORK
120Ω
IN
OUT
75Ω
75Ω
The 120Ω/75Ω switch selects
either the 120 ohm balanced
G.703 interface or the 75 ohm
unbalanced G.703 interface. The
RX SHIELD switch selects either
an “open” or “earth” shield
connection for the 75 ohm RX
interface. (This switch must be set
to “open” when using the 120 ohm
interface.)
HDSL HDSL
NTU
NETWORK
NTU
COM PORT
COM
AUX
POWER
CAUTION: AUX PORT OR COM PORT MUST
NOT BE CONNECTED TO HDSL NETWORK
PORT
PORT
NOTE
HDSL
NETWORK
G.703
TX RX
RX SHIELD
120Ω
PORT 3 PORT 4
PORT 1 PORT 2CLOCK IN
120Ω
OPEN
IN
EARTH
OUT
75Ω
75Ω
HDSL
NETWORK
75Ω
TO AC
POWER
MODULE
SERIAL
PORT
3100-F1-550
NOTE:
3100 SERIES
FRONT PANEL
EMULATION
SOFTWARE,
3100-C1-010
TO DC
POWER
(OPTIONAL)
3100-F1-520
SNMP
MANAGER
Figure 2-12. Cabling Examples
3100-F1-540
OR
495-1474
2-8 December 1996 3360-A2-GB20-20
Installation
7
8
7
9
Power-Up Self-Test
After you connect the E1 NTU to a power source, the
unit performs the power-up self-test to ensure that it is in
good working order. The E1 NTU performs this test on
itself upon power-up or after a device reset, unless it has
been disabled by the Self-T est configuration option (see
Appendix C, Configuration Options).
The self-test includes a basic processor test, a limited
memory test, a code checksum test, and basic verification
tests of the internal components. The front panel LCD
displays the progress and pass/fail status of these
power-up tests.
The power-up self-test consists of the following steps:
1. Once the E1 NTU is plugged in, the In Progress
screen appears and the Fail LED blinks ON and
Off continuously.
Self-Test:
In Progress
F1
F2
F3
If the self-test fails, the Failed screen appears for
five seconds. The Fail LED lights, and an
eight-digit failure code (xxxxxxxx) is displayed for
use by service personnel to determine the cause of
the self-test failure. The E1 NTU continues to try
to operate. If you are in doubt about the results of
the self-test, use the Self-T est Health command to
display the status of this test (see the Self-Test
Health section in Chapter 4, Maintenance).
Self-Test:
xxxxxxxx
F1
F2
ALRM SIG ALRM PDVOOF BPV
NETWORK RXD
F3
OK
FAIL
Failed
TEST SIG1 SIG2 OOF
4. The top-level menu screen appears.
E1 HDSL NTU
Stat Test Cnfig
CTS RTSTXDDTR
495-1474
OK
FAIL
TEST SIG1 SIG2 OOF
ALRM SIG ALRM PDVOOF BPV
NETWORK RXD
CTS RTSTXDDTR
495-1474
2. All the LEDs then start to flash simultaneously in
the pattern twice ON, then Off. Then, the LCD
begins to flash characters and numbers in the same
pattern, alternating with the flashing LEDs.
3. If the self-test is successful, the Passed screen
appears for one second, the Fail LED turns Off
and the OK LED lights.
Self-Test:
Passed
F3
DTR TXD CTS RTS
495-1474
OK
FAIL
F1
TEST SIG1 SIG2 OOF
NETWORK RXD
F2
ALRM SIG ALRM PDVOOF BPV
OK
FAIL
F1
TEST SIG1 SIG2 OOF
NETWORK RXD
F2
ALRM SIG ALRM PDVOOF BPV
F3
DTR TXD CTS RTS
495-1474
2-93360-A2-GB20-20 December 1996
Operation
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Front Panel 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad. 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Jacks. 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEDs 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Unit Identity 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying LED Conditions 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the G.703 DTE or Data Port for LED Display 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Configuration Options 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying/Editing Configuration Options 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving Edit Changes 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting/Copying to a Specific Port 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the E1 NTU for SNMP Management 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Port 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the IP Address 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Link Layer Protocol 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying the Community Name(s) and Access Type(s) 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring SNMP Traps 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enabling SNMP Trap Messages 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Number of Trap Managers 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring a Destination for SNMP Traps 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring DS0 Channels 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying DS0 Channel Assignments 3-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allocating Data Ports 3-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Channel Assignment Method 3-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Individual Channel Assignment Method 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allocating DS0 Channels from the G.703 DTE Interface to the Network Interface 3-30. . . . . . . . . . . . . .
Clearing DS0 Channel Allocation 3-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Timing Source 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring for Network Timing 3-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring for External Timing 3-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquiring/Releasing the User Interface 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquiring the Active User Interface 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Releasing the Active User Interface 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resetting the E1 NTU 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Download Operations 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3-13360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
1
Overview
This chapter contains information for operating your
E1 NTU. It includes a description of the front panel and
sample procedures for configuring the E1 NTU.
Using the Front Panel
The E1 NTU front panel (Figure 3-1) consists of an
LCD, a keypad, test jacks, and 12 LEDs.
NOTE
You can display a graphical
representation of the E1 NTU
front panel on an attached PC
(see Appendix G,
Emulation
LCD
F1 F2 F3
).
KEYPAD
Front Panel
E1
HDSL
LINEE1MON
LINE
Lp1
Lp2InOutInOut
TEST JACKS LEDs
OK
FAIL TEST SIG1 OOF ALRM
Figure 3-1. E1 NTU Front Panel
SIG2 SIG ALRM PDVOOF BPV
NETWORK RXD
DTR TXD CTS RTS
496-14728-0
3-2 December 1996 3360-A2-GB20-20
Operation
LCD
The LCD (Figure 3-2) displays two types of data:
• Messages such as alarms, command/test
completion, and action in progress
• Front panel menu tree information (see
Appendix A, Front Panel Menu)
F1 F2
Figure 3-2. LCD
The LCD displays status messages as requested via the
Device Health and Status branch of the front panel menu
(see the Device Health and Status section in Chapter 4,
Maintenance). In addition, the highest level status
message appears on the front panel automatically if no
front panel action has occurred at the E1 NTU for the past
five minutes.
The LCD also lists commands, configuration options,
and test results. In most cases, the top line shows the
command or option name and default value, while the
second line displays options and responses. When a
response is required, select from the options displayed
directly above the Function keys (F1, F2, F3); make your
choice by pressing the corresponding Function key.
F3
Keypad
The 7-button keypad (Figure 3-3) enables you to
navigate through the menu tree and select choices
presented on the second line of the LCD.
F1 F2
Figure 3-3. Keypad
Use the
key to move up the menu.
F1 F2
Use the key to exit any part of the menu in which
you may be operating. You immediately return to the
top-level menu screen shown on the front panel menu (see
Appendix A, Front Panel Menu).
F3
F3
F1 F2
F3
Use the Function (F1, F2, F3) keys to make selections
from the choices presented on the second line of the LCD.
When this line presents choices, it is generally divided
into three sections, each displayed directly above one of
the Function keys. When your choice appears above one
of the Function keys, press that key to select that choice.
F1 F2
F3
3-33360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
3
9
The scroll keys ( and ) serve one of two functions,
depending on whether a menu screen or a data entry
screen appears on the front panel.
For data entry screens, the
character to the left while the
key scrolls one
key scrolls one
character to the right.
For menu screens, the
menu choice while the
key scrolls to the previous
key scrolls to the next menu
choice.
If a choice is available to the left of the screen, the
character ← appears on the top line. If a choice is
available to the right of the screen, the → character
appears on the top line. If choices are available to both the
right and the left of the screen, two arrows appear (
).
The arrows indicate that you must use the scroll keys to
bring the additional options onto the screen.
F1 F2
F3
LEDs
There are twelve LEDs on the E1 NTU front panel.
The five LEDs on the right (Figure 3-5) are shared
between the G.703 DTE port and the data ports. Refer to
the Selecting the G.703 DTE or Data Port for LED
Display section later in this chapter to choose which port’s
status the LEDs display.
OK
FAIL
TEST SIG1 SIG2 OOF
Figure 3-5. E1 NTU LEDs
A green LED indicates normal operation. A yellow
LED indicates a warning (for the G.703 DTE port) or
activity (for the data ports). Conditions are sampled every
tenth of a second.
The twelve front panel LEDs are grouped into four
sections to indicate the status of the:
• System (T able 3-1 )
ALRM SIG ALRM PDVOOF BPV
NETWORK RXD
DTR TXD CTS RTS
495-1474
Test Jacks
Six test jacks are located on the front panel
(Figure 3-4). These are described in the Test Jacks section
in Chapter 4, Maintenance.
HDSL
NETE1LINEE1MON
Lp1
Lp2InOutInOut
495-1475
Figure 3-4. Test Jacks
• Network interface (T able 3-2 )
• G.703 DTE Port (Table 3-3)
• Data Ports (T able 3-4 )
3-4 December 1996 3360-A2-GB20-20
Table 3-1
System LEDs
Operation
Name
OK Green Indicates the current operational state of the E1 NTU.
FAIL Yellow Indicates a system failure or a self-test.
TEST Yellow A system test is in progress.
Color Meaning
ON:
OFF:
BLINKING:
ON:
OFF:
BLINKING
ON:
OFF:
The E1 NTU is operational and has power.
The E1 NTU is performing a power-up self-test or a system failure
has occurred.
A software download is in progress.
A device error/fault is detected or a reset has just occurred.
No system failures are detected.
: A self-test is in progress.
A loopback or pattern test has been initiated either locally , by the
network, or externally.
No tests are active.
Table 3-2
Network Interface LEDs
Name
SIG1 Green Monitors the signal being received from the network.
SIG2 Green Monitors the signal being received from the network.
OOF Yellow Monitors Out Of Frame (OOF) conditions on the received network signal.
ALRM Yellow Indicates whether an alarm condition exists on the received network signal.
Color Meaning
ON:
OFF:
ON:
OFF:
ON
: At least one OOF was detected on the signal during the sampling
OFF:
ON:
OFF:
A recoverable signal is being received from the network on loop 1.
The signal cannot be recovered from the network on loop 1 (a Loss
of Signal condition exists).
A recoverable signal is being received from the network on loop 2.
The signal cannot be recovered from the network on loop 2 (a Loss
of Signal condition exists).
period.
No OOFs were detected on the signal during the sampling period.
An alarm condition (LOS, LOF, EER, RAI, AIS, RMA, MFA) exists on
the received network signal. Use the Device Health and Status
command to determine the alarm type.
No alarm condition exists on the network interface signal.
3-53360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
Table 3-3
G.703 DTE Port LEDs
Name
SIG Green Monitors the signal being received from the G.703 DTE port.
OOF Yellow Monitors Out Of Frame (OOF) conditions on the received G.703 DTE signal.
ALRM Yellow Indicates whether an alarm condition exists on the received G.703 DTE signal.
PDV Yellow Monitors Pulse Density Violations (PDV) on the received G.703 DTE signal.
BPV Yellow Monitors Bipolar Violations (BPV) on the received G.703 DTE signal.
Color Meaning
ON:
OFF:
ON:
OFF:
ON:
OFF:
ON
: At least one PDV was detected (and corrected) on the received
OFF:
ON:
OFF:
A recoverable signal is being received from the G.703 DTE port.
The signal cannot be recovered from the G.703 DTE port (a Loss of
Signal condition exists).
At least one OOF was detected on the signal during the sampling
period.
No OOFs were detected on the signal during the sampling period.
An alarm condition (LOS, LOF, EER, RAI, AIS, RMA, MFA) exists on
the received G.703 DTE signal. Use the Device Health and Status
command to determine the alarm type.
No alarm condition exists on the G.703 DTE Interface signal.
G.703 DTE signal during the sampling period.
No PDVs were detected on the received G.703 DTE signal during
the sampling period.
At least one BPV was detected (and corrected) on the received
G.703 DTE signal during the sampling period.
No BPVs were detected on the received G.703 DTE signal during
the sampling period.
3-6 December 1996 3360-A2-GB20-20
Table 3-4
Data Port LEDs
Operation
Name
DTR Green Monitors the state of interchange circuit CD (CCITT 108/1, /2) – Data Terminal Ready
TXD Yellow Monitors activity on interchange circuit BA (CCITT 103) – Transmitted Data. This is the
RXD Yellow Monitors activity on interchange circuit BB (CCITT 104) – Received Data. This is data
CTS Yellow Monitors the state of interchange circuit CB (CCITT 106) – Clear-to-Send sent to the
Color Meaning
received from the synchronous data DTE.
ON:
OFF:
data sent from the synchronous data DTE to the data port on the E1 NTU.
ON:
OFF:
CYCLING:
sent to the synchronous data DTE from the data port on the E1 NTU.
ON:
OFF:
CYCLING:
synchronous data DTE.
ON:
OFF:
DTR is being asserted by the synchronous data DTE.
DTR is not being asserted.
Ones are being received from the synchronous data DTE.
Zeros are being received from the synchronous data DTE.
Both ones and zeros are being received from the synchronous
data DTE.
Ones are being sent to the synchronous data DTE.
Zeros are being sent to the synchronous data DTE.
Both ones and zeros are being sent to the synchronous data DTE.
CTS is being asserted by the E1 NTU.
CTS is not being asserted.
RTS Yellow Monitors the state of interchange circuit CA (CCITT 105) – Request-to-Send received
from the synchronous data DTE.
ON:
OFF:
RTS is being asserted by the synchronous data DTE.
RTS is not being asserted.
3-73360-A2-GB20-20 December 1996
ACCULINK 336x E1 NTU
Displaying Unit Identity
The identity of the E1 NTU (serial number, model
number, software revision level, hardware revision level,
and customer identification) is available through the
Status branch of the front panel menu (see Appendix A,
Front Panel Menu).
The customer identification is the only identity number
you can change.
To display the E1 NTU’s identity (ID),
1. From the top-level menu screen, select Stat.
E1 HDSL NTU
Stat Test Cnfig
F1
F2
2. From the Status screen, press the key until the
ID selection appears on the screen.
F3
4. The following screens appear in the order listed
each time you press the
key.
Identity:
xxxxxxx
Ser=
F1
F2
F3
Identity:
xxxx-xx-xxx
Mod=
F1
F2
F3
Identity:
Cust ID=
F1
xxxxxxxx
F2
F3
3. Select ID.
Status:
HDSL DevHS STest
F1
F2
F3
Status:
TStat LED ID
F1
F2
F3
Identity:
SRev=
F1
Identity:
CCA1=
F1
Identity:
CCA2=
F1
Identity:
CCA3=
xx.xx.xx
F2
xxxx-xxx
F2
xxxx-xxx
F2
xxxx-xxx
F3
F3
F3
F1
3-8 December 1996 3360-A2-GB20-20
F2
F3
Operation
To change the customer identification (CID),
1. From the top-level menu, press the
key until
the Ctrl selection appears on the screen.
E1 HDSL NTU
Stat Test Cnfig
F1
F2
F3
2. Select Ctrl.
E1 HDSL NTU
Test Cnfig Ctrl
F1
F2
F3
3. From the Control screen, press the key until
the CID selection appears on the screen.
Control:
Rel LED ClrReg
4. Select CID.
Control:
Reset CID DL
F1
F2
F3
5. Use the and keys to position the cursor
under the desired character. You must enter a
character before the
moves the cursor to the
next space to the right.
CustID:
xxxxxxxx
Up Down Save
F1
F2
F3
6. Enter the desired ID. Press F1 (Up) and F2
(Down) to scroll up and down through the valid
characters/numbers for the customer ID. Valid
characters are 0 through 9, #, -, ., /, A to Z, and
blank space. Press F3 (Save) to save the ID.
F1
F2
F3
CustID:
xxxxxxxx
Up Down Save
F1
F2
F3
3-93360-A2-GB20-20 December 1996
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