Access System Centum 56 Series
6
AS56 and AS56
Plus
Access System 56 CSU/DSU
Access System 56
Part Number 896-502588-001-A
May 199
Plus
T1 CSU/DSU
User Manual
Verilink Corporation
145 Baytech Drive
San Jose, California 95134
Important Notice
VERILINK CORPORATION DISTRIBUTES
THIS REFERENCE “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER
LIMITED OR IMPLIED. Verilink Corpora tion
reserves the right to revise this publication from
time to time without notice. Some states or
jurisdictions do not allow disclaimer of express or
implied warranties in certain transactions;
therefore, this statement may not apply to you.
The following are trademarks or registered
trademarks of Verilink Corporation: Access
System 2000, Access Manager 2000, Advanced
Programmable Architecture, and Craft Interface.
Your right to copy this manual is limited by
copyright law. Making copies of this reference, or
any part thereof, without prior written
authorization from Verilink Corporation is
prohibited by law and constitutes a punishable
violation of the law
Copyright
1996 Verilink Corporation. All
rights reserved.
Customer Service and Sales Information
To receive more detailed information on service
options and pricing, contact Customer Services at
1.800.VERILINK (1.800.837.4546).
Access our FAX-on-Demand System for our latest
Customer Service brochure at 1.800.957.LINK
(1.800.957.5465).
You can also contact Verilink Cust omer Support
by email at support@verilink.c om. You can visit
the Verili nk Web page at http:\\www.verilink.com.
Or you can direct dial into the Verilink Technical
Support BBS at (408) 934-3834 at line speeds up
to 28.8K.
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Unpacking
This equipment is normally shipped in cardboard cartons with foam
inserts to protect the units from shock and vibration during shipment.
Upon arrival of the equipment, inspect the condition of the boxes and
compare all items to the packing list. Notify Verilink and the carrier
immediately if there are any damages or shortages.
Store the cartons and packing material in case the unit has to be shipped
at a later date.
Check the contents against the packing slip. For each Centum 56 Series
unit ordered, the carto n sho uld contai n the un it, an AC power module, and
a manual.
WARNING
The following rules should always be followed when connecting
telephone equipment and/or wiring:
1. Never install telephone wiring during a lightnin g storm.
2. Never install the telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
3. Never touch uninsulated telephone wires or terminal s unless the
telephone line has been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
NOTE
Verilink reserves the right to incorporate p roduct enhancements and/or
change product specifications at any time and without notice.
Warranty
All Verilink equipment is covered by a 5-year new product warranty. For
additional i nformati on, call 1.800 .VERILINK.
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FCC Information
This equipment complies with the requirements in Part 15 of FCC Rules
for a Class A computing device. Operation of this equipment in a
residential area may cause unacceptable interference to radio and
television reception, requiring the operator to take whatever steps are
necessary to correct the interference. Verilink shielded cables should be
used with this unit to ensure compliance with the Class A limits.
This equipment meets the technical criteria specified in the Part 68 rules,
sub-part A through F, (for connection of terminal equipment to the
telephone network) as well as the requirements specified in AT&T
Technical Publications 62411, 54016, and 540 19A (ESF).
This equipment meets the safety requirements of the Underwriters’
Laboratories (UL) tec hnical publicatio ns UL 1950.
Type of Interface 1.544 Mbps Digital Channel
Facility Interface 04DU9-B for D4 format
04DU9-C for ESF format with AMI Line Code
04DU9-S for ESF format with B8ZS Line Code
Service Code 6.0N
Jack Arrangement RJ-48C
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Ringer Equivalence N/A
FCC User Requirements
The following instructions are provided to ensure that you comply with
the Federal Communications Commission (FCC) Rules, Part 68:
1. All direct connections to the T1 digital lines must be made through
standard plugs and jacks f urnished by the tel ephone company. no
connections can be made to party lines or coin lines. Before
connecting your unit, you must do the following:
a. Tell your local telephone company that you have an FCC
registered device that you wish to connect to the company’s
lines. Provide the 14-digit FCC registration number listed on the
label. The telephone company will also need to know the
facility interface code (04DU9-B) and service code (6.0N) in
order to connect the necessary service.
b. Inform the telephone company that you wish to use the RJ-48C
jack arrangement.
c. After the telephone company has installed the RJ-48C jack, you
may connect the CSU with the appropriate cable.
2. If the unit appears to be malfunctioning, it should be disconnected
from the telephone line until the source of the problem is confirmed.
If the unit needs repair, it should not be reconnected until after the
repair is completed.
3. The CSU has been designed to prevent harm to the DDS or T1
network. If the telephone company determines that it is exceeding
tolerance parameters, they are permitted to temporarily disconnect
service. When possible, the customer will be given advance notice.
4. Under FCC Rules, no customer is authorized to repair the equipment,
regardless of its warranty status.
5. If the telephone company alters the equipment in a manner that will
affect its usage, advance notice must be given to prevent service
interruption.
Normally, Verilink CSU equipment will be used to interface either FCC
registered or grandfathered digital terminal equipment to the digital
service channel. If the equipment to be connected is not of this type,
institutional procedures provide that an affidavit be supplied to the
telephone company. This affidavit must state that the system will be
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operated only by trained individuals and that the signal power at the
telephone company interface will not exceed the limits set forth in Part 68
of the FCC’s Rules and Regulations.
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Table of Contents
1OVERVIEW 1-1
Centum 56 Series Products ........................................................................................................... 1-2
T1 Concepts .......................... .. .................................................................................................... .. 1-3
Special Access Sys tem56 Features ..................................................................................... 1-3
Built-In 56/64 kbps DDS CS .................................................................................. 1-3
Built-In T1 ESF CSU ................................................................................................. 1-3
Network Protection .................................................................................................... 1-4
Front Panel Control .................................................................................................... 1-4
Terminal Control ........................................................................................................ 1-4
NMS Control - SNMP Agent Inside .......................... ................................................ 1-4
Printer Support ........................................................................................................... 1-4
Event Log ........................ ........................................................................................... 1-4
Built-in Diagnostics ................................................................................................... 1-5
ESF Operation ............................................................................................................ 1-5
Clear Channel ............................................................................................................ 1-5
Specifications................................................................................................................................ 1-5
2 FRONT PANEL OVERVIEW 2-1
Introduction................................................................................................................................ ... 2-1
LCD Screen................................................................................................................................ ... 2-3
LED Indicators........................ ...................................................................................................... 2-5
Network Interface ................................................................................................................ 2-5
Serial Port ............................................................................................................................ 2-5
3 CONFIGURING AND INSTALLING THE ACCESS SYSTE M56 3- 1
Requirements ................................................................................................................................ 3-2
Software and hardware ........................................................................................................ 3-2
Power and environmental .................................................................................................... 3-2
Configuration Parameters ............................................................................................................. 3-3
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Checking the “T-Channels”......................................................................................................... 3-18
Access Syst em56 Self-Testing.................................................................................................... 3-20
T1/FT1 mode self-testing ................................................................................................... 3-20
56/64 kbps mode self testing .............................................................................................. 3-22
Connecting the Access Syst em56............................................................................................... 3-24
Line Testing................................................................................................................................ . 3-25
Point-to-Point Configuration ..............................................................................................3-25
T1/FT1 Mode Line Testing ......................................................................................3-25
56/64 kbps DDS Mode Line Testing ........................................................................ 3-27
Line Testing (Integrated Access, Fractional T1) ......................................................................... 3-29
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4 TESTING THE ACCESS SYSTEM 56 4-1
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Worksheet.................................................................................................... 3-30
Testing in T1/FT1 Mode................................................................................................................ 4-2
Local Loop ........................................................................................................................... 4-2
Payload BERT .................... .. .. .. .. .. .. .. .. .. .. .............................................................................. 4-3
Local Loop with BERT ........................................................................................................4-4
Payload Loop ..................................... .. ................................................................................. 4-5
Line Loop ............................................................................................................................. 4-6
Serial Port Loop ................................................................................................................... 4-7
Serial Port BERT .................................................................................................................. 4-8
Testing in 56/64 kbps DDS Mode ................................................................................................. 4-9
Local Loop ........................................................................................................................... 4-9
CSU Loop ........................................................................................................................... 4-10
DSU Loop .......................................................................................................................... 4-11
5 OTHER FEATURES 5-1
Alarms and Statistics ..................................................................................................................... 5-1
T1/FT1 mode ........................... .. .. .. .. .. .. .. .......................................................................... ..... 5-1
56/64 kbps DDS mode ......................................................................................................... 5-2
Alarm Definitions .......................................................................................................................... 5-3
T1/FT1 mode ........................... .. .. .. .. .. .. .. .......................................................................... ..... 5-3
56/64 kbps DDS mode ......................................................................................................... 5-3
ESF Statistics Definitions (T1/FT1 Mode).................................................................................... 5-5
Alarms/Statistics Menu (T1/FT1 Mode)........................................................................................ 5-6
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Serial Port Indicators..................................................................................................................... 5-8
T1/FT1 mode ....................................................................................................................... 5-8
56/64 kbps DDS mode ......................................................................................................... 5-8
Utilities................................................................................................................................ .......... 5-9
Events................................................................................................................................ .......... 5-10
Event Printing .................................................................................................................... 5-10
T1/FT1 Events .......... .. ............................ ........................................................................... 5-11
56/64 kbps DDS Events ..................................................................................................... 5-12
6 AUXILIARY PORTS 6-1
Cabling................................................................................................................................ .......... 6-2
Auxiliary ports .................. .. ........................................................................................... ...... 6-2
Rear panel views .................................................................................................................. 6-4
Terminal Configuration...................................... ........................................................................... 6-5
Terminal Operation....................................................................................................................... 6-7
Selecting the operating mode ........ .. .................................................................................... 6-7
Configuration Menus .................................................................................................................. 6-10
T1/FT1 mode ..................................................................................................................... 6-10
56/64 kbps DDS mode ....................................................................................................... 6-11
Link Alarms and Diagnostics................ ...................................................................................... 6-13
T1/FT1 mode ..................................................................................................................... 6-13
56/64 kbps DDS mode ....................................................................................................... 6-13
Serial Port Diagnostics/Indicators............................................................................................... 6-15
T1/FT1 mode ..................................................................................................................... 6-15
56/64 kbps DDS mode ....................................................................................................... 6-15
ESF Registers (T1/FT1 mode).................................................................................................... 6-17
Event Log (T1/FT1 Mode and 56/64 kbps DDS mode) ............................................................. 6-19
Utilities (T1 and 56/64 kbps DDS modes) .................................................................................. 6-20
Printer Configuration .............. .. .... .. .. .. .. .... .. .. .. .................................................................... ........ 6-26
Printer Port Flow Control.................................. .. .. ...................................................................... 6-27
Printer Operation................. .. .. ......................................................................................... ........... 6-28
Front panel operation ......................................................................................................... 6-28
Terminal operation ............................................................................................................ 6-28
NMS (SNMP) Configuration...................................................................................................... 6-29
Front Panel Operation ........................................................................................................ 6-29
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Terminal Operation ............................................................................................................ 6-29
Compiling the MIB ........ .................................................................................................... 6-30
Providing SNMP Manager Access ..................................................................................... 6-30
With a terminal server .............................................................................................. 6-30
With a router ............................................................................................................. 6-31
Via direct or dial-up connection ...............................................................................6-32
A STANDARD CABLING FOR USER PORTS A-1
Network Interfaces........................................................................................................................ A-1
Multi-Configurable Serial Port ..................................................................................................... A-3
V.35 Configuration .................... .......................................................................................... A-4
RS-530/RS-422A Configuration ......................................................................................... A-5
RS-232 Configuration ........................ ................................................................................. A-6
Console Port................................................................................................................................ .. A-7
SNMP Port................................................................................................................................ .... A-8
B SPECIAL SERIAL PORT CABLING B-1
External Timing............................................................................................................................ B-1
Cables for External Timing........................................................................................................... B-2
V.35 Serial Port Cabling .......... ........................................................................................... B-2
RS-422A Serial Port Cabling .............................................................................................. B-3
Cables for INTernal/EXTernal Timing......................................................................................... B-5
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List of Figures
Figur e2-1 Front Panel: Acc ess System 56 Plus ( A S56
Plus
) T1 CSU/DSU ...................................2-1
Figur e2-2 Front Panel: Access System 56 (AS56) CSU/DSU ......................................................2-1
Figur e2-3 Centum 56 Series Menu Tree .......................................................................................2-4
Figur e6-1 Rear Panel of Access System 56
Plus
T1 CSU/DSU ......................................................6-4
Figur e6-2 Rear Panel of Access System 56 CSU/DS ...................................................................6-4
Figur e6-3 SNMP Manager Access with a Terminal Server ........................................................6-31
Figur e6-4 SNMP Manager Access with a Router .......................................................................6-31
Figur e6-5 SNMP Manager Access via Direct or Dial-up Connection ........................................6-32
Figur eA-1 V.35 Adapter Module Pin Assignments ...................... ................................................ A-4
Figur eA-2 RS-530/RS-422A Pin Assignments ............................................................................. A-6
Figur eB-1 V.35 Serial Port #1 Cabling for External Timing ........................................................ B-2
Figur eB-2 RS-422A Serial Port #1 Cabling for External TIming ................................................ B-3
Figur eB-3 V.35 Serial Port #1 Cabling for Internal/External Timing ..........................................B-5
Figur eB-4 RS-422A Serial Port #1 Cabling for Internal/External TIming ...................................B-6
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Chapter
1 Overview
The Access Syst em56 Super Rate Digital Network CSU/DSU provides
the interface between customer equipment and 56/64 kbps service, or full
or fractional T1 facilities. It has a built-in 56/64 kbps CSU/DSU, a builtin T1 ESF CSU, and one built-in synchronous data interface.
The network interface accommodates the 56/64 kbps AT&T 62310
standard or the T1/FT1 D4/ES F framed sta ndard, from on e to twenty-fo ur
DS0s.
The synchronous user interface provides a V.35, EIA RS232C or EI
RS530 connection that can be used for any synchronous application. The
synchronous interface i s software selectable. It will operate at 56/64 kbps
or any multiple of 56 kbps or 64 kbps up to 1.536 Mbp s. It will als o
operate at any current Frame Relay service data rates.
The Access Syst em56 addresses a variety of applications with the ability
to provide 56/64 kbps DDS or T1/FT1 bandwidth for LANs, image
transmission, mainframe file transfers and other high-speed applications.
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1-1
Overview
Centum 56 Series Product
The Centum 56 Series product line includes the following specially
featured unit types:
Access System 56 Plus (AS56 PLUS).
A Centum 56 Series u nit which
can be converted from a 56/64 kbps DDS uni t to a T1/FT1 unit. This can
only be done by utilities configuration selection on the user's terminal
screen (See Chapter 6,
Access System 56 (AS56).
Auxiliary Ports
).
A Centum 56 Series unit which operates
in56/64 kbps DDS Mode only.
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T1 Concepts
T1 Concepts
A T1 digital transmission facility carries twenty-four 64 Kbps DS0
“channels,” for a total of 1.536 Mbps (plus 8K bps overhead to achieve
the well-known 1.544 Mbps). These DS-0s can be demultiplexed by
equipment such as Verilink’s Access Sys tem56 units, and groups of DS0s
can be assigned to specific connectors on the equipment to transport
computer information. In some cases, the user has access to the full 64
kbps per channel while, in other cases, the user is limited to 56 kbps per
channel. A detailed explanation is provided in Chapter 3,
Installing the Access Syst em56
.
Configuring and
The T1 facility itself can be a physical point-to-point circuit with all
twenty-four DS0s going from one site to another. The facility can also be
“Integrated Access,” that uses a Central Office DACS and one or more
Fractional-T1 (F-T1) links. This is a physical multipoint facility with
logical point-to-point links formed by groups of DS0s.
Special Access
Syste m56 Features
NMS (SNMP) Configuration,
on page 6-29, describes exa mples of Ac cess
System 56 usage with both point-to-point and Integrated Access,
Fractional T1 facilities.
Built-In 56/64 kbps DDS CSU
Interfacing to 56/64 kbps digital data system (DDS) service requires a
DDS CSU (Channel Service Unit). The Access Syst em56 includes a
built-in 56/64 kbps DDS CSU as standard equipment.
Built-In T1 ESF CSU
Interfacing to T1 or Fractional T1 services requires a T1 CSU. The
Plus
Access Syst em56
includes a built-in T1 ESF CSU as standard
equipment. The superior ESF (Extended SuperFrame) CSU includes
provisions for continuous performance monitoring by both the user and
the telephone company central office. ESF provides a 4 Kbps link control
channel (transparent to user data) which allows the telephone company to
monitor the local loop, transmit and receive test messages and retrieve
performance data, all without interrupting normal operations.
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Overview
Network Pr otection
The Access Syst em56 provides complete electrical protection for the
network by automatically inserting pulses into the tr ansmitted signal as
required to meet the bit density formula specified in AT&T Pub 62310
(56/64 kbps DD S) and in A T&T Pub 62411 (T1/FT1).
Front Panel Control
The Verilink Access Sys tem56 is easy to use. Configuration and testing
are accomplished with a few buttons. Status is shown on a 32-character
liquid crystal display (LCD) screen and seven front-panel indicators. The
LCD screen serves as a “window” that can be moved vertically. The
indicators are separated into Network and Serial Port (DTE) groups.
Terminal Control
All Access Syst em56 features can be accessed via an external terminal.
The terminal's CRT allows displays that are much more comprehensive
than possible via the front panel LCD. The user-supplied terminal can be
selected from a wide v ar iet y of sta ndard offerings or can be a PC with
terminal emulation software.
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NMS Control - SNMP Agent Inside
Configuration, dialing and testing can also be controlled through any
SNMP Manager using the SNMP Agent software. The direct connection
SLIP port on the rear panel of the Access Syste m56 supports speeds of
1200, 2400, 4800, and 9600 bps. A password routine prevent s
unauthorized access to the NMS console screens.
Printer Support
The Access Syst em56 includes a port for printer support. Real-time
reports of all system events are automatically sent out this port. In
addition, the front panel or an ext ernall y attached terminal can c ommand
printouts of configuration, alarms and ESF statistics.
Event Log
The Access Syst em56 constantly monitors for the occurrence of
“events,” such as alarms, test commands and system resets. When an
Specifications
event occ urs, a descri ption with a time and date stamp is immediately sent
out the printer port. In addition, the Access Sys tem56 maintains a log of
the most recent sixteen events and that log can be accessed by either the
front panel controls and LCD panel or an externally attached terminal.
Built-in Diagnostics
The Verilink Access Sys tem56 includes extensive capabilities to help
pinpoint network problems without the need for external test equipment.
Diagnostics include local and remote Serial Port digital loopbacks, LLB,
RLB and payload NI lo o p backs.
The Access Syst em56 also includes a built-in bit error rate tester
(BERT), eliminating the need for external test equipment. The built-in
tester transmits a 2047-bit pseudo random test pattern. The Access
System 56 records errors received, seconds in test, and error-free seconds.
Alarm conditions are displayed on the front panel LCD screen as well as
on the console's Alarms/Statistics screen. Front panel LEDs indicate unit
and control signal status.
Specifications
ESF Operation
The Access Syst em56 Extended SuperFrame (ESF) operation allows the
telephone company central office to continuously monitor the local loop,
to transmit and receive test messages, and to retrieve performance data,
without interrupting normal operations. The units are compatible with
both AT& T 54016 and ANSI T1.403 specifications.
Clear Channel
For T1/FT1 operation, the Access Syst em56 units provide clear channel
signaling with B8ZS line coding (in installations where it is supported by
the Telco central office) or alternate channel assignment.
Product specifications for the Access S ystem56 are listed on the
following page.
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Overview
ETWORK INTERFACE
N
56/64 kbps DDS Mode
Interface Integral 56/64 kbps DDS CSU
Format Full 56/64 kbps DDS Compatibility per AT&T Tech Pubs 62310
Line Rate 56/64 kbps Bipolar AMI, RTZ
Interface Female, 8-position RJ-48C
T1/FT1 Mode
Interface Integral ESF CSU
Framing Full ESF/D4 Compatibility per AT&T Tech Pubs 62411, 54019, and ANSI T1.403
Line Rate 1.544 Mbps +/- 50 ppm, Bipolar AMI or B8ZS
LBO 0, 7.5, 15, 22.5 dB
T ermination Female, 8-position RJ-48C
IMING
T
Clock Sources Internal
ETWORK DIAGNOSTICS
N
Local Loops CSU, Line (LLB) and Payload loops
Remote Loops Line (LLB), Payload and V.54 Compliant loops
Test Patterns 2047 (DDS and T1 Modes)
ERIAL DATA INTERFACE
S
# of Ports 1 standard
Input Data Rates 56/64 kbps
Interfaces Female 25-pin “D”.
NDICATORS
LED I
Network Loop, Density, BPV, Alarm
Serial Port Test, Loop, DC
ROGRAMMING
P
Front Panel 32 Character Liquid Crystal Displ ay with front panel buttons
ECHANICAL
M
Dimensions 8.35” W X 1.75” H X 10” D
Weight 7 pounds (maximum)
Mounting Tabletop or Rack
Power Integral supply, 90-230 Vac, 47-63 Hz
Environment 0 to 40 degrees C, 90% humidity (non-condensing)
(Subrate speeds: 2400, 4800, 9600, 19200, 56000, and 64000)
Frequency l oc ke d to Netwo r k (looptim e)
Frequency locked to Synchronous Serial Port
1 of 8, 3 of 24, All Ones ( T1 Mode Only)
N x 56/64 Kbps for N= 1 to 24, up to 1.536 Mbps
Software select able V.35, RS-530, RS-232
SNMP Manager with integrated agent software
ASCII Terminal
Alarm Printer
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Chapter
2 Front Panel Overview
Introduction
The front panel LCD screen displays two rows of sixteen characters each.
Menu parameters are presented individually. The buttons to the right of
the LCD screen scroll data vertically through the screen, d isplayi ng up to
two parameters at a time. There are also seven LED indicators that are
used to display the status of various Access Sys tem56 conditions.
Figure 2-1 Front Panel: Access System 56 Plus (AS56
CSU/DSU
Plus
) T1
LED indicators
SELECT
LED indicators
SELECT
LCD screen
and
UP
button — to choose a parameter or activate a function
button — to return to next higher menu grouping
END
and
UP
button — to choose a parameter or activate a function
button — to return to next higher menu groupin
END
arrow buttons — to move to a field
DOWN
Figure 2-2 Front Panel: Access System 56 (AS56) CSU/DSU
LCD screen
arrow buttons — to move to a field
DOWN
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LED
LED
indicators
indicators
2-1
Front Panel Overview
There are an
an
button. The basic operating procedures are simple.
END
1. To select a menu, use the
(↑) buttons, a
UP
DOWN
and
UP
(↓)button, a
DOWN
SELECT
buttons to move to the
button, and
desired field.
2. Then,
SELECT
to choose the submenu.
3. To choose from a particular set of parameters or activate a function,
use the
SELECT
key. Use
to return to the next higher menu
END
grouping.
UP/DOWN (Arrow) Buttons.
window vertically within a menu grouping. The
display window up (backwards). The
These buttons are used to move the display
button moves the
UP
button moves the display
DOWN
window down (forward) to the next menu entry.
SELECT.
Used to choose a submenu, choose a parameter activate a
function.
Used to return to the previous menu.
END.
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LCD Screen
LCD Screen
The LCD screen is limited to two lines of 16 characters each.
The displayed menus inclu de th e Main Menu, which is sub-divided into
the following five (5) menus: Configuration, Diagnostics, Alarms &
Statistics, Event Log, and Utilities. Each sub-menu is further broken
down into sub-level menus. Menu e xamples are shown be low. Subsequent
chapters give detailed information regarding these menus.
Main Menu
_Configuration
NI Interface
Speed..: _56kbps
Ntwk Diagnostics
Local Loop: _On
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Front Panel Overview
Figure 2-3 Centum 56 Series Menu Tree
Main Menu
Configuration
Network
Interface
Timing
Source
Serial Por t
DS-0
Assignments
(T1 Mode)
Print
Configuration
Network Por
Serial Port #1
(T1 Mode)
Serial Por t
Indicator
(DDS Mode)
Alarms / Stats Event Log UtilitiesDiagnostics
NI Alarms
ESF Statistics
(T1 Mode)
Print Alarm
(T1 Mode)
Print ESF
Statistics
(T1 Mode)
Entry #1
Entry #2
Entry #3
Entry #16
Clear Even
Log
Unit Type
Set Date &
Time
Edit
Unit ID
Clear BRA
Software
NMS/Prt Port
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Self Test
LED Indicators
LED Indicators
There are seven LED indicators on the front panel. They are used to
indicate the status of various alarm and call conditions. They monitor two
areas of Acce ss Syst em56 operation: Network In t e rface (NI) and Se r i a l
Port.
Network Interface
Serial Port
All Network LEDs should be OFF during normal operation.
Illuminates when either the Network Interface is in a loopback state.
LP.
Illuminates when Bipolar Violations are being received from the
BPV.
Network. Can also i ndicated a very weak or overly strong signal.
Illuminates when receive alarm condition (Red, Yellow, etc.) is
AL.
detected on the network interface.
Used only in T1/FT1 mode. Indicates that the Network Interface is
DEN.
forcing the required number of transmitted “ones” to satisfy the T1
network requirements. This could be a result o f improper co nf i guration o r
failure of the customer’s attached Serial Port equipment and will result in
data corruption.
Indicates the status of the BERT test if in progress. Will be ON only
TST.
if the test results are good.
Illuminates when a loop condition exists in the serial port either at the
LP.
local or remote end.
Illuminates when the state of the Data Carrier Detect (or
DCD.
equivalent) lead being transmitted to the DTE connected to the serial port
is ON or HIGH.
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Front Panel Overview
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Chapter
3 Configuring and Installing the
Access Syst em56
If you have purchased the AS56
Network Interface Op era ting Modes:
AS56 — factory default (56/64 kbps CSU/DSU)
■
Plus
AS56
■
Obviously, you must first insert the cable into the correct port. However,
changing the operating mode can only be accomplished using the ASCII
console interface. Before proceeding any further, refer to the procedures
Terminal Configuration,
in
6-7.
— T1 CSU/DSU
Plus
unit, you can select from two
on page 6-5, and
Terminal Operation,
on page
WARNING
The following rules should always be followed when connecting
telephone equipment and/or wiring:
1. Never install telephone wiring during a lightnin g storm.
2. Never install the telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
3. Never touch insulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
NOTE
Access Sys tem56 units should
it has been completely configured and has successfully passed self test.
be connected to the network until after
not
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User Manual
3-1
Configuring and Installing the Acce ss Syste m56
Requirements
Listed below are the requirements for operating Access Syste m56 units.
Software and hardware
Power and environmental
Each Access Sys tem56 product is a self-contained unit that can be
configured with no additional software or hardware.
This chapter describes the steps necessary to configure, test, and install
Access Syst em56 using the front panel buttons and LCD panel. The same
steps can be more easily performed using a customer-supplied external
terminal (or PC with terminal emulation software). See Chapte r6,
Auxiliary Ports
Access Syst em56 uses 110-120 VAC, 60 Hz, at 0.25 amps.
Access Syst em56 does not require a conditioned environment but should
be operated in areas with adequate ventilation.
.
3-2
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User Manual
Configuration Parameter
Proper configuration of the Access Syst em56 requires information
regarding the ne twork itself a n d the manner in which the network will be
used. Most of this information is readily available from the network
supplier although some user decisions must be made from within the
limitations of the network.
This manual includes a configuration worksheet at the end of this chapter
to aid the user in configuring the unit. Verilink recommends that the
master worksheet be photocopied and that copies be used to record the
actual information for Access Sy stem56 units. By using the information
in this chapter, one worksheet should be completed for each unit in the
network. After completing all worksheets for all units, this chap ter s hould
again be used to actually configure the units.
Note that the Access Sys tem56 can remain unpowered indefinitely
without losing the configuration parameters.
Plug in the Access Sy stem56 and confirm that the LCD panel displays:
Configuration Parameters
Main Menu HH:MM
_Configuration
If necessa ry, press the
UP
or
arrow buttons until the panel displays
DOWN
the above information.
TIP
The item numbers in this section correlate to the circled reference
numbers on the AS56 and AS56
Plus
Worksheet, on page 3-30. To make
your life easier, photocopy the worksheet and complete it as a record of
each unit’s configuration.
1. Model number Administration information i ndicating specif i c
Access Syst em56 model being configured.
2. Company name and location. Administrative information
determined by customer.
3. DDS Carrier or T-Carrier ID, Local Circuit ID, and Billing
Number Administrative information obtained from the network
supplier.
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Configuring and Installing the Acce ss Syste m56
NOTE
Steps 4 through 11 (below) apply to T1/FT1 network interface
configuration while Steps 12 through 15 apply to 56/64 kbps DDS
network interfa ce configuration.
SELECT
to
display:
SELECT
to
display:
Configuration
_NI Interface
NI Configuration
Framing:_XX
4. NI Framing. This information must be obtained from the n etwork
supplier. Depress
DOWN
display:
SELECT
to
to choose between D4 and ESF.
NI Configuration
Line Code:_XXX
5. NI Line Code. This information must be obtained from the network
supplier. Depress
DOWN
display:
SELECT
to
to choose between AMI and B8ZS.
NI Configuration
LBO..:_X dB
6. NI LBO (Lin e Bu ild Ou t). Should be set to 0 dB unless the network
supplier specifically requests otherwise. If requested, repeatedly
to choose 0, 7.5, 15, or 22 dB.
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SELECT
Configuration Parameters
DOWN
display:
to
NI Configuration
NTWK Diag.: XXX
7. Network Diagnostics. This entry determines the Access Sy stem56’s
ability to respond to diagnostic commands received from the network
supplier. Repeatedly
SELECT
to choose between Yes and No.
User equipment must alw a ys respond to network-generated
diagnostic commands. Select Yes unl ess the commands are to be
passed to another T1 device that will respond.
DOWN
display:
to
NI Configuration
Density: XXXX
8. NI Density. This information must be obtained from the network
supplier. Depress
SELECT
to choose Clear or 62411. A Clear
network imposes no “ones density” requirements on the user. A
62411 network complies with AT&T Technical Reference #62411
and limits Access Sy stem56 transmission to no more than fifteen
consecutive zeroes.
If the Line Code entry is B8ZS, choose Clear. If the Line Code entry
is AMI, choose 62411.
DOWN
display:
9. NI CFA. Depress
Yes causes the unit to discard data and send a “yellow alarm” if it is
in a “red alarm” condition for three seconds.
to
SELECT
NI Configuration
NI CFA:_XXX
to choose between Yes and No.
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User Manual
3-5
Configuring and Installing the Acce ss Syste m56
Yes should be chosen if the network supplier is a common carrier,
such as a telephone company, and the application is data and voice.
No may be selected for data only applications. If the network is
private, the selection is a user option.
DOWN
display:
to
NI Configuration
ESF Frmt:_XXX
10. ESF Reporting Format. This entry describes the types of ESF
network commands that the unit will respond to. It has no meaning
for D4 networks: see Framing (item #4, above). With ESF networks,
this information must be obtained from the network supplier.
Depress
SELECT
to choose between AT&T Technical Reference
54016 and ANSI specification T1.403.
to
DOWN
display:
11. Clear Registers. Depress
NI Configuration
Clear Regs:_XXX
SELECT
to choose between Yes and No.
Yes is the recommended choice.
When commanded by the network supplier, the unit will transmit
stored error information to the supplier.
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A Yes entry will cause the unit to clear all error counts when it is
powered down and back up again.
A No entry will allow potentially invalid information to be retained
in the error registers in preparation for transmission to the network
supplier.
Configuration Parameters
NOTE
Steps 12 through 15 apply to 56/64 kbps DDS network interface
configuration.
UP/DOWN
display:
SELECT
display:
to
to
Configuration
_NI Interface
NI Configuration
SPEED..:_56kbps
12. Network Speed. This information must be obtained from the
network supplier. Depress
SELECT
to choose between 56kbps and
64kbps.
DOWN
display:
to
NI Configuration
NTWK Diag.:Yes
13. Network Diagnostics. This entry determines the unit's ability to
respond to diagnostic commands received from the network suppl ier.
Depress
SELECT
to choose between Yes and No.
User equipment must alw a ys respond to network-generated
diagnostic commands. Select Yes unl ess the commands are to be
passed to another DDS device that will respond.
DOWN
display:
to
NI Configuration
Scrambler:_No
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3-7
Configuring and Installing the Acce ss Syste m56
14. Network Scrambler. This entry enables the unit to avoid inadvertent
transmission of network loopback latching codes. The scrambler
option is only needed in 64 kbps mode, and if ena bl e d, must be
enabled on both the local Access Syste m56 and the remote Access
System 56 units. De p r ess
SELECT
to choose between Yes and No.
DOWN
display:
to
NI Configuration
DTE LOS:_RTS
15. Network DTE LOS (Loss of Signal). This entry determines which
control signal forces the unit into a LOS state. When a LOS state
occurs, the Access Sys tem56 unit will continuously transmit the
Control Mode Idle (CMI) code to the network. Depress
SELECT
to
choose between RTS, DTR and None.
NOTE
Step 16 applies to both the T1 and DDS modes.
END
to display:
Configuration
_NI Interface
DOWN
display:
to
Configuration
_Timing Source
SELECT
to
display:
16. Timing Source. Depress
As a 56/64 kbps CSU/DSU, ALL units must
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Timing Source
Source:_Int
SELECT
to choose NI, Port 1, or Int.
use NI timing.
Configuration Parameters
In a point-to-point configuration, one unit must use NI timing and
the other unit must
use something else. This “something else” is
nearly always Int (Internal), but some user configurations require
Port 1 timing. Contact the Technical Assistance Center if assistance
is needed.
NOTE
Steps 17 through 25 (below) apply to Serial Port #1 in T1/FT1 mode.
From Main Menu,
UP/DOWN
to
display:
SELECT
and
UP/DOWN
to display:
SELECT
to
display:
17. Serial Port Data Rate.
NOTE
In an Integrated Access , Fractional T1 e nvironment, this selection
be coordinated with the network supplier.
Main Menu HH:MM
_Configuration
Configuration
_Serial Port
Serial Port
_XXXK (X DS0)
MUST
Before entering a value, the user must first determine if each DS0
will carry 56 kbps or 64 kbps user data and must then determine the
correct quantity of DS0s necessary to achieve the desired data rate.
See Density (item #8, abo v e). If the NI is Clear, the 56/64 decision is
completely user optional and 64Kbps is recommended to obtain
maximum data transfer efficiency in the network.
If the NI is not Clear, steps must be taken to ensure the proper “ones
density” in the data presented to the network. If this is not done, the
unit may occasionally damage user data in order to satisfy network
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Configuring and Installing the Acce ss Syste m56
requirements. There are three methods that can be used to ensure
ones density in the data:
• Limit the user data to 56 kbps per DS0. Access Sy stem56 will use
the remaining 8 kbps (in each DS0) to provide the required
density.
• Allow 64 kbps user data in each DS0 and use alternate DS0s.
Keep the intervening DS0s idle to provide the density. See
Alt/Consec below (item #19). This method wastes significant
bandwidth and should only be used when absolutely necessary.
• Allow 64 kbps user data in each DS0 when the user’s protocol
provides the required density. See Data Norm/Inv below
(ite m#20).
When the 56/64 decision has been made, repeatedly
the desired data rate is dis played on the left side of the LCD panel
AND the correct DS0 quantity is displayed on the right side. Select
N/U if the Serial Port will not be used.
SELECT
until
CAUTION
!
18. Serial Port, DS0 assignments. This selection determines which
NOTE
In some cases, the same data rate can be achieved with two different DS0
quantities, one with 56 kbps DS0s and the other with 64 kbps DS0s.
to
DOWN
display:
specific DS0s within the T1 stream will support the Serial Port.
In an Integrated Access , Fractional T1 env ironment, this selection
be coordinated with the network supplier.
The First DS0 is the lowest numbered DS0 of the quantity indicated
in Data Rate (items #13 and #20, above). Depress
desired First DS0 appears in the display. The remaining DS0s
required to support the desired data rate are the next higher numbered
Serial Port
First DS0:_01
SELECT
MUST
until the
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Configuration Parameters
contiguous or alternate DS0s. It is not possible for the string of DS0s
to “wrap” from DSO-24 to DSO-1.
to
DOWN
display:
19. Depress
SELECT
to choose either Consecutive or Alternate. If
Serial Port
_Consec. DS0s
Consec. DS0s is chosen, the DS0s assigned to this serial port will be
a contiguous string beginning with the First DS0.
If Alternate DS0s is chosen, the unit will insert an idle DS0
immediately after each one required for user data. Fo r example, if the
first DS0 is #1 and four alternate DS0s are selected, #1, #3, #5, and
#7 will carry user data while #2, #4, #6, and #8 will be idle.
When this selection is made, place checkmarks in the appropriate
“T-Channel Definitions” boxes to simplify recordkeeping. Don’t
forget to account for 56 kbps vs. 64 kbps DS0s.
DOWN
display:
to
Serial Port
Type:_V.35
20. Serial Port, Interface Type. This enables the user to select the serial
cable interface type to be used with the Access S ystem56. Depress
SELECT
to choose between V. 3 5 , RS530/422 and RS232.
DOWN
display:
to
Serial Port
CD.:_On
21. Serial Port, CD handling. The Access Syst em56 presents a DCE
interface to the attached customer equipment. Carrier Detect (CD)
can be
• permanently On
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User Manual
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Configuring and Installing the Acce ss Syste m56
• permanently Off
•CD tracks RT
• Switched (normally On, turns Off upon network ca rrier failure).
Switched is the recommended mode of operation unless the
customer DTE requires otherwise. Depress
Off, CD tracks RT, or Switched.
SELECT
to choose On,
DOWN
display:
to
Serial Port
Data..: XXX
22. Serial Port, data normal/inverted.
Depress
SELECT
to choose between Norm and Inv.
• If Density is Clear, choose Norm.
• If Data Rate uses 56 kbps per DS0, choose Norm.
• If Alt/Consec is Alternate, choose Norm.
If none of the above conditions apply, consider the following:
Some user protocols, such as SDLC and HDLC, have a “zeroes
density” characteristic that, when inverted, results in the required T1
“ones density”. If the attached DTE uses one of these protocols AN
also inverts the data, choose Norm and confirm that the mated serial
port (at the “other end” of the circuit) is configured the same.
If the attached DTE uses one of these protocols and does NOT invert
the data, choose Inv and confirm that the mated serial port (at the
“other end” of the circuit) is configured the same.
NO OTHER CONDITIONS ARE VALID. Please refer to
discussion under “Serial Port Data Rate”.
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AS56 and AS56
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DOWN
display:
to
Serial Port
Clock.:_Norm
23. Serial Port, clock normal/inverted.
Configuration Parameters
Depress
SELECT
to choose Norm or Inv. Initially choose Norm. If
frequent errors occur at this serial port, try Inv and check
performance.
Normally, th e down-going clock e dge is in the midd le of each bit.
This is required by networks. Some DTEs, particularly with highspeed V.35 configurations and/or lengthy cables, place the rising
edge in the middle of each bit. Inv will correct this condition to
satisfy the network.
to
DOWN
display:
24. Serial Port clock handling.
Depress
SELECT
to choose Internal, External, or Int/Ext.
Internal is the normal setting and should always be chosen unless
there is specific reason to do otherwise. At the serial interface,
Access Syst em56 will provide both TX-clock and RX-clock to the
customer DTE.
External should be used with the Serial Port if the attached user
equipment is DCE, rather than DTE. With external timing, the user’s
DCE must be used as the system’s master clock. See Timing Source
(item #16, above). The “external clock” is the “External Timing” pin
on the interface.
Serial Port
Clocks:_Internal
The External setting requires special user cabling and a very s pecific
configuration for the user DCE. Please refer to Appendix “C” for
more information.
Int/Ext is recommended if the attached user DTE cable exceeds ten
feet in length and the customer data rate exceeds 224 kbps.
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Configuring and Installing the Acce ss Syste m56
The Int/Ext setting may require a special DTE configuration or a
modified cable. Please refer to Appendi xA,
User Ports
for more information.
Standard Cabling for
DOWN
display:
to
Serial Port
Rem Loop:_Yes
25. Serial Port Remote Loop Enable/Disable.
Depress
SELECT
to choose between Yes (Enabled) and No
(Disabled).
When Enabled, this Serial Port channel will respond to receipt of a
remote digital loop comma nd arri ving from t he Seri al Port channel of
the mated Access Syst em56 unit. Enabled is recommended unless
the user has specific reason to do otherwise.
When Disabled, this Serial Port channel will not respond to receipt
of a remote digital loop command.
END
to display:
Configuration
__Serial Port
END
to display:
Main Menu HH:MM
__Configuration
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Configuration Parameters
NOTE
Steps 26 through 31 (below) apply to Serial Port #1 in 56/64 kbps DDS
mode.
From Main Menu,
UP/DOWN
to
display:
SELECT
and
UP/DOWN
to display:
SELECT
to
display:
Main Menu HH:MM
_Configuration
Configuration
__Serial Port
Serial Port
Type:_V.35
26. Serial Port, Interface Type. This enables the user to select the serial
cable interface type to be used with the Access S ystem56. Depress
SELECT
to choose between V. 3 5 , RS530/422 and RS232.
DOWN
display:
to
Serial Port
CD.:_On
27. Serial Port, CD handling. The Access Syst em56 presents a DCE
interface to the attached customer equipment. Carrier Detect (CD)
can be
• permanently On
• permanently Off
•CD tracks RT
• Switched (normally On, turns Off upon network ca rrier failure).
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Configuring and Installing the Acce ss Syste m56
Switched is the recommended mode of operation unless the
customer DTE requires otherwise. Depress
Off, CD tracks RT, or Switched.
SELECT
to choose On,
DOWN
display:
to
Serial Port
Data.:_Norm
28. Serial Port, data normal/inverted.
Depress
SELECT
DOWN
to choose between Norm and Inv.
to
display:
Serial Port
Clock.:_Norm
29. Serial Port, clock normal/inverted.
Depress
SELECT
to choose Norm or Inv. Initially choose Norm. If
frequent errors occur at this serial port, try Inv and check
performance.
Normally, th e down-going clock e dge is in the midd le of each bit.
This is required by networks. Some DTEs, particularly with highspeed V.35 configurations and/or lengthy cables, place the rising
edge in the middle of each bit. Inv will correct this condition to
satisfy the network.
to
DOWN
display:
30. Serial Port clock handling.
Depress
SELECT
to choose Internal, External, or Int/Ext.
Internal is the normal setting and should always be chosen unless
there is specific reason to do otherwise. At the serial interface,
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Serial Port
Clocks:_Internal
Configuration Parameters
Access Syst em56 will provide both TX-clock and RX-clock to the
customer DTE.
External should be used with the Serial Port if the attached user
equipment is DCE, rather than DTE. With external timing, the user’s
DCE must be used as the system’s master clock. See Timing Source
(item #16, above). The “external clock” is the “External Timing” pin
on the interface.
The External setting requires special user cabling and a very s pecific
configuration fo r the user DCE. Please refer to Appendi xC,
Serial Port Cabling
for more information.
Special
The Int/Ext setting may require a special DTE configuration or a
modified cable. Please refer to Appendi xC,
Cabling
for more information.
Special Serial Port
DOWN
display:
to
Serial Port
Rem Loop:_Yes
31. Serial Port Remote Loop Enable/Disable.
Depress
SELECT
to choose between Yes (Enabled) and No
(Disabled).
When Enabled, this Serial Port channel will respond to receipt of a
remote digital loop comma nd arri ving from t he Seri al Port channel of
the mated Access Syst em56 unit. Enabled is recommended unless
the user has specific reason to do otherwise.
When Disabled, this Serial Port channel will not respond to receipt
of a remote digital loop command.
END
to display:
Configuration
__Serial Port
END
to display:
Main Menu HH:MM
__Configuration
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Configuring and Installing the Acce ss Syste m56
Checking the “T-Channels”
From Main Menu,
UP/DOWN
required to
to display:
Depress UP or
to
display:
SELECT
to display:
as
DOWN
display:
SELECT
DOWN
while comparing Access Syst em56 display with
Main Menu HH:MM
_Configuration
Configuration
_Ntwk Interface
Configuration
_DS0 Assignments
Channel Mode
_01: Idle
the checkmarks in the worksheet T-Channel Definitions.
Note that “Idle” refers to channels that have been configured as “Not
Used” in the unit.
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The DS0 configuration can also be sent to a printer. Please refer to
Chapter 6,
Auxiliary Ports
.
Checking the “T-Channels”
END
END
to display:
to display:
Configuration
__DS0 Assignments
Main Menu HH:MM
__Configuration
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Configuring and Installing the Acce ss Syste m56
Access Sy stem56 Self-Testing
The self-testing can be performed via either the Acces s System56 control
panel or an external terminal or PC. The instructions below assume that
the unit’s control panel is being used. Chapte r6,
describes usage of an external terminal.
T1/FT1 mode selftesting
From Main Menu,
UP/DOWN
to
display:
Auxiliary Ports
,
Main Menu HH:MM
_Diagnostics
SELECT
to display:
SELECT
to
display:
If the Local Loop is presently Off, the Network
Diagnostics
_Ntwk Port
NI Diagnostics
Local Loop..:_Off
ALARM
indicator should
be illuminated. If the Local Loop is presently On, the Network
indicator should be ext ing uished. Depress
SELECT
and Off while conf irm ing proper functioning of the Network
to turn the loop On
ALARM
indicator. Leave the Local loop in the On condition.
ALARM
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Access Syst em56 Self-Testing
DOWN
to display:
NI Diagnostics
BERT......:_Off
If necessary,
and
DOWN
as required and
DOWN
SELECT
SELECT
to display:
SELECT
to display:
to display:
NI Diagnostics
BERT......:_On
NI Diagnostics
Err Secs.:_00000
NI Diagnostics
Sec/Test.:_00000
Confirm that the Seconds/Test is properly incrementing and then depress
to confirm that the Errored Seconds is not incrementing. If the unit is
UP
receiving errored seconds, confirm your configuration and run the selftesting again. If the unit still indicates “errored seconds”, contact our
Technical Assistance Center.
Turn Off the B ERT and the Lo cal Loop.
Cycle through the Diagnostics menus and confirm that all test functions
(loops and BERT) are Off. (If necess ary , turn them Off).
If the unit is being used in a point-to-point configuration, configure and
self-test the remote unit. If the unit is being used in an Integrated Access,
Fractional T1 environment, configure and self-test all remaining units.
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Configuring and Installing the Acce ss Syste m56
56/64 kbps mode self testing
Main Menu,
UP/DOWN
From
to
display:
Main Menu HH:MM
_Diagnostics
SELECT
to display:
SELECT
to
display:
If the Local Loop is presently Off, the Network
Diagnostics
_Ntwk Port
Ntwk Diagnostics
Local Loop..:_Off
ALARM
indicator should
be illuminated. If the Local Loop is presently On, the Network
indicator should be ext ing uished. Depress
SELECT
and Off while conf irm ing proper functioning of the Network
to turn the loop On
ALARM
indicator. Leave the Local loop in the On condition.
as required
DOWN
If necessary,
to display:
SELECT
to display:
Ntwk Diagnostics
DSU Loop..:_Off
Ntwk Diagnostics
DSU Loop..:_On
ALARM
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DOWN
as required
to display:
Ntwk Diagnostics
BERT.....:_Off
If necessary,
SELECT
to display:
Access Syst em56 Self-Testing
Ntwk Diagnostics
BERT......:_2047 or
All 0s
DOWN
DOWN
SELECT
and
SELECT
to display:
as required and
to display:
Ntwk Diagnostics
Loc ES...:_00000
Ntwk Diagnostics
Sec/Test.:_00000
Confirm that the Seconds/Test is properly incrementing and then depress
to confirm that the Errored Seconds is not incrementing. If the unit is
UP
receiving errored seconds, confirm your configuration and run the selftesting again. If the unit still indicates “errored seconds”, contact our
Technical Assistance Center.
Turn Off the B ERT and the Lo cal Loop.
Cycle through the Diagnostics menus and confirm that all test functions
(loops and BERT) are Off. (If necess ary , turn them Off).
If the unit is being used in a point-to-point configuration, configure and
self-test the remote unit. If the unit is being used in an Integrated Access
T1 environment, configure and self-test all remaining units.
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Configuring and Installing the Acce ss Syste m56
Connecting the Access S ystem56
After all units have been configured and self-teste d, they should be
connected to the network via the 8-pin modular jack (RJ-48
configuration).
The User DTEs should also be connected at this time.
RS-530 DTEs connect to the DSUs via male DB-25 connectors.
■
V. 35 DTEs and RS-449 (37-pin) DTEs connect to th e DSUs via
■
mechanical adapters (supplied by Verilink).
All cable specifications are given in Appen dixA,
User Ports
.
Standar d Cablin g for
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Line Testing
Line Testing
This section discusses line testing for point-to-point configuration and
Fractional T1 Integrated Access.
Point-to-Point Configuration
The line testing can also be performed via either the Acces s System56
control panel or an external terminal or PC. The instructions belo
assume that the unit is using the front control panel. Chapter 6,
Ports
, describes usage of an external terminal.
Auxiliary
Confirm that both ends are configured, self-tested, and connected to the
network. Confirm that the
ALARM
indicator is extinguished at both ends.
If not, review both configurations and repeat both self-tests. If either
ALARM
Center. Once the
indicator remains illuminated, contact our Technical Assistance
ALARM
indicators are extinguished, proceed as follows.
T1/FT1 Mode Line Testing
From Main Menu,
UP/DOWN
display:
SELECT
to display:
to
Main Menu HH:MM
_Diagnostics
Diagnostics
_Ntwk Port
SELECT
to display:
NI Diagnostics
Local Loop..:_Off
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Configuring and Installing the Acce ss Syste m56
DOWN
SELECT
as required
to display:
to display:
NI Diagnostics
NI RLB..:_Off
NI Diagnostics
NI RLB..:_On
If the remote end responds properly to this command, the Network
LOOP
indicator will illuminate within approximately ten seconds. If the remote
end does not respond properly, the
indicator will remain
LOOP
extinguished and the LCD panel will change to NI RLB..:_Off.
Confirm that the remote end has responded properly. If it has not, check
the Network cable connections and try again. If it still does not respond,
contact your network supplier. Continue with the following steps only if
the remote end has responded properly.
DOWN
SELECT
as required and
to display:
NI Diagnostics
BERT......:_On
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DOWN
SELECT
DOWN
SELECT
as required and
to display:
as required and
to display:
NI Diagnostics
Err Secs.:_00000
NI Diagnostics
Sec/Test.:_00000
Confirm that the Seconds/Test is properly incrementing and then depress
to confi rm that the Errored Seconds is not incrementing. If the unit is
UP
receiving errored seconds, confirm your configuration and run the testing
again. If the unit still indicates errored seconds, contact our Technical
Assistance Center.
Line Testing
Turn Off the BERT and the Loop. Your system is now ready for
operation.
56/64 kbps DDS Mode Line Testing
From Main Menu,
UP/DOWN
display:
SELECT
SELECT
DOWN
to display:
to display:
as required
to display:
SELECT
to display:
to
Main Menu HH:MM
_Diagnostics
Diagnostics
_Ntwk Port
Ntwk Diagnostics
Local Loop..:_Off
Ntwk Diagnostics
Remote Loop:_Off
Ntwk Diagnostics
Remote Loop:_On
If the remote end responds properly to this command, the Network
LOOP
indicator will illuminate within approximately ten seconds. If the remote
end does not respond properly, the
indicator will remain
LOOP
extinguished and the LCD panel will change to Remote Loop:_Off.
Confirm that the remote end has responded properly. If it has not, check
the Network cable connections and try again. If it still does not respond,
AS56 and AS56
Plus
User Manual
3-27
Configuring and Installing the Acce ss Syste m56
contact your network supplier. Continue with the following steps only if
the remote end has responded properly.
DOWN
SELECT
UP
SELECT
as required and
to display:
as required and
to display:
Ntwk Diagnostics
DSU Loop:_On
Ntwk Diagnostics
BERT......:_2047 or
All 0s
as required and
DOWN
SELECT
as required and
DOWN
SELECT
to display:
to display:
Ntwk Diagnostics
Local ES:_00000
Ntwk Diagnostics
Sec/Test.:_00000
Confirm that the Seconds/Test is properly incrementing and then depress
to confi rm that the Errored Seconds is not incrementing. If the unit is
UP
receiving errored seconds, confirm your configuration and run the testing
again. If the unit still indicates errored seconds, contact our Technical
Assistance Center.
3-28
AS56 and AS56
Plus
User Manual
Turn Off the BERT and the Lo ops. Your system is now ready for
operation.
Line Testing (Integrated Access, Fractional T1)
Line Testing (Integrated Access, Fractional T1)
The line testing can be performed via either Acce ss System56 control
panel or an external terminal or PC. The instructions below assume that
the unit’s control panel is being used. Chapte r6,
describes usage of an ex ternal terminal.
The line itself cannot be tested directly in an Integrated Access,
Fractional T1 environment (the Network remote loop will not function). It
can, however, be tested indirectly by using the Serial Port channel. If a
Serial Port channel is being used, Remote Loop must be enabled for all
Access Syst em56 units at remote locations.
Auxiliary Ports
,
From Main Menu,
UP/DOWN
to
display:
Use
Use
SELECT
SELECT
and the UP and
and the UP and
or Local Loop On (but not
SELECT
to turn on the BERT. Finally, use the arrows to confirm that
Main Menu HH:MM
_Diagnostics
arrows to choose Serial Port.
DOWN
arrows to choose Remote Loop On
DOWN
both). Then, use the
UP/DOWN
arrows and
Seconds/Test is incrementing but Local and Remote Errored Seconds is
not incrementing. This checks out the link from the local site to the
ultimate Serial Port destination.
Turn Off the BERT and the Loop. Your system is now ready for
operation.
AS56 and AS56
Plus
User Manual
3-29
Configuring and Installing the Acce ss Syste m56
18
AS56 and AS56
Model #
Company Name:
Location:
T-Carrier ID:
Local Circuit ID:
Billing Number:
T1 Network Interf ace
Framing:
Line Code:
Line Build Out:
NTWK Diag.:
Density:
NI CFA:
ESF For ma t:
Clear Registers:
Plus
Worksheet
1
2
2
3
3
3
4
5
6
7
8
9
10
11
56/64 kbps DDS Carrier ID:
Local Circuit ID:
Billing Number:
56/64 kbps Network Interface
Speed:
Network Diagnostics:
Scrambler:
DTE LOS:
T-Channel Definitions
3
3
3
12
13
14
15
Timing Source
Source:
16
Serial Port
Data Rate:
First DS-0:
Alt/Consecutive:
Interface Type:
CD Handling:
Data Norm/Inv:
Clock Norm/Inv:
Clocks:
Remote Loop:
3-30
AS56 and AS56
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User Manual
17
18
19
&
26
20
&
27
21
&
28
22
&
29
23
&
30
24
31
25
&
T-Channel
Number
DS0-1 DS0-13
DS0-2 DS0-14
DS0-3 DS0-15
DS0-4 DS0-16
DS0-5 DS0-17
DS0-6 DS0-18
DS0-7 DS0-19
DS0-8 DS0-20
DS0-9 DS0-21
DS0-10 DS0-22
DS0-11 DS0-23
DS0-12 DS0-24
Serial
Port
Not
Used T-Channel
Number
Serial
Port
18
Not
Used
Chapter
4 Testing the Access Syst em56
Access Syst em56 testing can be performed via either the unit’s control
panel or an external terminal or PC. The instructions below assume that
the unit’s control panel is being used. Chapter 6,
describes usage of an external terminal.
The Access Syst em56 includes extensive diagnostic capabilities that
allow testing of the unit itself as well as the attached network. Follow the
instructions below to access the Diagnostic Menus for Access Sys tem56
testing:
Auxiliary Ports
,
From Main Menu,
UP/DOWN
to
display:
Main Menu HH:MM
_Diagnostics
AS56 and AS56
Plus
User Manual
4-1
Testing the Access System 56
Testing in T1/FT1 Mode
Local Loop
This section discusses the various tests available for the AS56
Plus
,
operating in T 1/FT1 mode.
When the Local Loop is ON, the front panel LP LED will illuminate and
local testing can be performed by external DTE equipment or by Access
System 56’ s internal BERT
From Diag. Menu,
UP/DOWN
SELECT
SELECT
as required to turn the Local loop off or on.
display:
then
DOWN
display:
to
to
Diagnostics
_Ntwk Port
NI Diagnostics
_Local Loop..:_Off
4-2
To
DTE
To
DTE
AS56 and AS56
Plus
User Manual
1.536 Mbps
Payload
1.536 Mbps
Payload
1.544 Mbps
Network
Interface
1.544 Mbps
Networ
Interface
Local Loop OFF
(Normal Data)
Local Loop ON
Testing in T1/FT1 Mode
Payload BERT
The Payload BERT is useful in a point-to-point environment. The Access
System 56 units at both ends of the circuit must be placed in a Payload
BERT condition with the same BER pattern.
From Diag. Menu,
UP/DOWN
SELEC
SELECT
as required to choose the desir ed Bi t Error Rat e pattern o f 2047,
display:
, then
DOWN
display:
to
to
Diagnostics
_Ntwk Port
NI Diagnostics
Tst Pat._XXX
1of 8, 3of 24, or All Ones.
DOWN
and
SELECT
as required to
display:
NI Diagnostics
BERT......:_On
If the BER pattern was changed in the previous step, the BERT must be
turned OFF and back ON again to establish the new pattern.
SELECT
as
required to turn the BERT Off/On.
DOWN
and
SELECT
as required to
display:
NI Diagnostics
Sec/Test.:_00000
If the CSU portions of the Access Syste m56 units and the data link are all
functioning properly, the Seconds/Test at both units will increment while
the Errored Seconds at both units will not increment.
WHEN TESTING IS COMPLETED, BE SURE TO TURN BOTH BERT
TESTS “OFF”.
AS56 and AS56
Plus
User Manual
4-3
Testing the Access System 56
To
DTE
Local Loop with BERT
Detector
Test P attern
Generator
1.536 Mbps
Payload
1.544 Mbps
Network
Interface
Payload BERT ON
The CSU portion of a single Access Sys tem56 unit can be tested by
activating both the Local Loop and the Payload BERT. Refer to page 4-2
and page 4-3.
If the CSU portion of the unit is functioning properly, the Seconds/Test
will increment while the Erro red S econds will not increment.
WHEN TESTING IS COMPLETED, BE SURE TO TURN BOTH THE
LOOP AND THE BERT “OFF”.
4-4
To
DTE
AS56 and AS56
Plus
User Manual
Detector
Test Pattern
Generator
1.536 Mbps
Payload
1.544 Mbps
Network
Interface
Local Loop and
Payload BERT
both ON
Testing in T1/FT1 Mode
Payload Loop
To
DTE
The Payload Loop is useful for looping back any testing initiated by the
other end of a point-to-point ci rcuit, such as Payload BERT, Serial BERT,
or any externally generated testing.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
display:
SELECT
as required to
DOWN
display:
to
and
1.536 Mbps
Payload
Diagnostics
_Ntwk Port
NI Diagnostics
PAYLD Loop:_On
1.544 Mbps
Networ
Interface
Payload Loop ON
SELECT
as required to turn the Payload Loop Off/On.
AS56 and AS56
Plus
User Manual
4-5
Testing the Access System 56
Line Loop
LLB causes a local line loop (at the Acce ss System56 unit where the
command was entered). RLB causes a remote line loop (at the distant end
of a point-to-point circuit); RLB should not be attempted in an Integrated
Access, Fractional T1 environment.
The CSU is excluded from the test path in a Line Loop configuration.
In a point-to-point circuit, the LLB and RLB a r e usef ul for looping ba ck
any testing initiated by the other end, such as Payload BERT, Serial Port
BERT, or any externally generated testing.
In an Integrated Access, Fractional T1 circuit, LLB is useful for looping
back Serial Port testing initiated by any remote location.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
display:
SELEC
DOWN
, then
as required
to display:
to
Diagnostics
_Ntwk Port
NI Diagnostics
NI LLB...:_On
4-6
To
DTE
AS56 and AS56
Plus
User Manual
SELECT
NI Diagnostics
NI RLB...:_On
as required to turn the loop Off/On.
1.536 Mbps
Payload
1.544 Mbps
Networ
Interface
OR
Line Loop ON
Testing in T1/FT1 Mode
Serial Port Loop
!
Local Loop ON causes a loop (at the Access Sy stem56 unit where the
command was entered). Remote Loop ON causes a loop at the Serial Port
at the distant end. In an Integrated Access, Fractional T1 environment, the
Serial Port link throu gh the netw ork i s a logica l po int- to-poi nt connec tio n
and the “distant end” is the destination for the serial port data.
CAUTION
Local and Remote Loops should not be activated at the same time unless
the serial port BERT is also activate d at the local end.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
to
display:
SELECT
to
display:
Diagnostics
_Serial Port #1
SP Diagnostics
_Local Loop: On
To
DTE
and
, then
DOWN
SELECT
SELEC
required to display:
as
OR
SP Diagnostics
_Remote Loop: On
1.536 Mbps
Payload
1.544 Mbps
Network
Interface
AS56 and AS56
Plus
User Manual
Serial Port
Loop ON
4-7
Testing the Access System 56
Serial Port BERT
The Serial Port (DTE) BERT can be used as a part of many different test
configurations. It is most valuable with both the Local and Remote Serial
Port Loops activated. The local end of the recommended configuration is
shown below.
The “Local” Errored Seconds are counted by the detector toward the left
side in the figure. The “Remote” Errored Seconds are counted by the
detector toward the right side.
WHEN TESTING IS COMPLETED, BE SUR E T O TURN THE LOOP AND
BERT “OFF”.
From Diag. Menu,
UP/DOWN
display:
SELECT
to display:
to
Diagnostics
_Serial Port
SP Diagnostics
Local Loop.: Off
Use
SELECT
Turn ON the Local and/or Remote Loop.
■
and
UP/DOWN
as required to:
4-8
To
DTE
AS56 and AS56
Plus
User Manual
Confirm/set the BER pattern generator to 2047.
■
Zero out the local and remote Errored Seconds counters.
■
Zero out the seconds/test counter.
■
Inject errors to confirm test configuration.
■
Generator
Detector
Detector
Generator
Test Pattern
1.536 Mbps
Payload
1.544 Mbps
Networ
Interface
Serial Port
BERT and
Loop ON
Testing in 56/64 kbps DD S Mode
This section discusses the various test s available for the AS56 and
Plus
AS56
in 56/64 kbps DD S mo d e.
Testing in 56/64 kbps DDS Mode
Local Loop
To
DTE
When the Local Loop is ON, the front panel LP LED will illuminate and
local testing can be performed by external DTE equipment or by Access
System 56’ s internal BERT
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
SELECT
as requi red to
SELECT
as required to turn the Local loop off or on.
and
to
display:
DOWN
display:
D
S
U
Diagnostics
_Ntwk Port
NI Diagnostics
_Local Loop..:_On
C
S
U
56/64 kbps
Networ
Interface
Local Loop ON
AS56 and AS56
Plus
User Manual
4-9
Testing the Access System 56
CSU Loop
To
DTE
The CSU Loop is useful for looping back any testing initiated by the other
end of a point-to-point circuit. Included in such testing would be any
externally generated testing.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
SELECT
as requi red to
SELECT
as required to turn the CSU Loop Off/On.
and
to
display:
DOWN
display:
D
S
U
Diagnostics
_Ntwk Port
NI Diagnostics
CSU Loop..:_On
C
S
U
56/64 kbps
Networ
Interface
CSU Loop ON
4-10
AS56 and AS56
Plus
User Manual
Testing in 56/64 kbps DDS Mode
DSU Loop
To
DTE
The DSU Loop is useful for looping back any testing initiated by the
other end of a point-to-point circuit. DTE data is also looped back to its
source.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
From Diag. Menu,
UP/DOWN
SELECT
as requi red to
SELECT
as required to turn the DSU Loop Off/On.
and
to
display:
DOWN
display:
D
S
U
Diagnostics
_Ntwk Port
NI Diagnostics
DSU Loop..:_On
C
S
U
56/64 kbps
Networ
Interface
DSU Loop ON
AS56 and AS56
Plus
User Manual
4-11
Testing the Access System 56
4-12
AS56 and AS56
Plus
User Manual
Chapter
5 Other Features
Many other functions are available in the Access Sy stem56. This chapter
describes access from the front panel display. The same functions can
also be accessed via an externally attached terminal. See Chapter 6,
Auxiliary Ports
Alarms and Statistics
This section discusses the alarms and statistics available in T1/FT1 mode
and 56/64 kbps DDS mode.
.
T1/FT1 mode
The Alarms and Stats Main Menu is intended for those users with T1
alarm and ESF (Extended Superframe) statistics knowledge. From the
Alarms and Stats Main Menu,
Access current network alarm conditions, which are shown with the
■
SELECT
then use
UP/DOWN
arrows to:
number of seconds that the alarms have been present since the last
alarm reset.
Reset the alarm times.
■
Access both current and 24-hour ESF statistics.
■
Access the current ESF registers.
■
Send alarms to an externally attached printer. See Chapter 6,
■
Auxiliary Ports
Send ESF statistics to an externally attached printer. See Chapter 6,
■
Auxiliary Ports
.
.
AS56 and AS56
Plus
User Manual
5-1
Other Features
56/64 kbps DDS mode
The Alarms and Stats Main Menu is intended for those users with 56/64
kbps DDS alar m knowledge. From the Alarms and Stats Main Menu,
SELECT
then use
Access current network alarm conditions, which are shown with the
■
UP/DOWN
arrows to:
number of seconds that the alarms have been present since the last
alarm reset.
Reset the alarm times.
■
Send alarms to an externally attached printer. See Chapter 6,
■
Auxiliary Ports
.
5-2
AS56 and AS56
Plus
User Manual
Alarm Definitions
T1/FT1 mode
Alarm Definitions
This section discusses the alarm definitions that apply to T1/FT1 mode
and 56/64 kbps DDS mode.
An unframed “all ones” condition has been detected.
AIS.
56/64 kbps DDS mode
LOS.
Loss of Signal. At least 32 consecutive zeroes have been received
at the network interface.
Red Alarm.
A “loss of frame alignment” has occurred and
synchronization has be en lost.
Yellow Alarm .
A Yellow Alarm is generated by the network and sent to
the customer premises. It usually means that the network is not receiving
the Access Syste m56 unit’s sign alling correctly.
Framing Errors.
One or more frame alignment bit errors have been
detected. This does not mean that synchronization has been lost.
CRC6 Alar m
One or more CRC6 block errors have been detected. The
D4 framing does not include CRC6; the Access Sy stem56 unit replaces
that parameter by counting the number of framing bit errors. The result is
a useful picture over time regarding D4 link performance.
Bipolar Violations have been detected. This usually indicates that
BPV.
a very weak or overly strong signal is being received from the network or
the cabling has been compromised.
LOS.
OOS
Loss of Signal. Received from network port.
Out of Service. Received from network port.
Out of Frame. Received from network port.
OOF .
Control Mode Idle. Received from network port.
CMI.
Framing Errors. One or more frame alignment bit errors have been
Ferr.
detected. This does not mean that synchronization has been lost.
AS56 and AS56
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User Manual
5-3
Other Features
Bipolar Violation. This usually indicates that a very weak or
BPV.
overly strong signal is being received from the network or the cabling has
been compromised
DLOS.
DTE Loss of Signal. Unit has determined that the Serial Port is
in a Loss of Signal state.
5-4
AS56 and AS56
Plus
User Manual
ESF Statistics Definitions (T1/FT1 Mode)
ESF Statistics Definitions (T1/FT1 Mode)
Errored Second (ES).
Any occurrence of a Loss of Frame or a CRC6
error in a one-second period.
Failed Signal State (FSS).
Failed Second (F S )
Ten consecutive Errored Seconds.
Each second during the occurrence of a Failed
Signal State.
Severely Errored Second (SES).
CRC6 errors in a one-second period.
Bursty Errored Second (BES )
More than one but less than 320 CRC6
errors in a one-second period.
Loss of Frame Count (LOFC )
Quantity of times that a Yellow Alarm
has occurred.
Three hundred twenty (320) or more
AS56 and AS56
Plus
User Manual
5-5
Other Features
Alarms/Statistics Menu (T1/FT1 Mode)
Please refer to Alarm and ESF Statistics Definitions previously described
in this chapter.
This chapter describes front panel access of the Alarms and Statistics
storage. Please refer to Chapter 6,
Auxiliary Ports
for terminal access.
From the Alarms/Stats Main Menu,
SELECT
to display either NI Alarms or ESF Statistics. Then
by
UP/DOWN
as described below.
then use
UP/DOWN
SELECT
arrows
followed
NI Alarms will display the current status (Yes/No) of AIS, Red and
Yellow Alarms, Frame Errors (Ferr), CRC6, LOS, and BPV alarms.
DOWN
will scroll through the seven possible alarms. If any entry is yes,
UP/
the display will also indicate the quantity of seconds that the alarm has
been present.
If ESF Statistics is selected, the user is then presented with another
choice, Current Statistics, 24-Hour Statistics, or ESF Registers.
By choosing Current St atistics, the user is provided statistics for the
current time interval (maximum fifteen minutes). Use
UP/DOWN
to scroll
through the following:
Current Status
■
ES & FS
■
SES & BES
■
LOFC
■
Time in Current Interval (in seconds)
■
the current quantity of Vali d Intervals (fifteen minutes per int erval).
■
5-6
AS56 and AS56
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User Manual
In the Current Status screen (shown below), the following interpretation
applies.
Current Stats
Status: XX0000X0
Alarms/Statistics Men u (T1/FT1 Mode)
Digit #1 F or 0 where F indicates Failed Signal State (FSS).
Digit #2 U or 0 where U indicates that the T1 line is
unavailable.
Digit #3 Always 0.
Digit #4 Always 0.
Digit #5 Always 0.
Digit #6 Always 0.
Digit #7 L or 0 where L indicates that the T1 line is in loop.
Digit #7 Always 0.
Scrolling
UP/DOWN
will provide detailed information. Below is the SES/
BES display.
Current Stats
SES: 000 BES: 000
By choosing 24 Hour Statistics, the user can scroll through the ES, FS,
SES, BES, and LOF counts for the prec eding 24-hour period.
24 Hour Stats
SES: 00000
ESF Registers gives the ES, FS, SES, and BES counts broken down for
each of the ninety-six 15-minute intervals in that 24-hour period. Use UP/
DOWN
to scroll through the intervals.
03. FS SES BES
000 000 000 000
In this example, the user has scrolled to interval #3. The ES count is the
first three-digit number (directly below the 03
).
AS56 and AS56
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User Manual
5-7
Other Features
Serial Port Indicators
This section discusses the various serial port indicators avai lable in T1/
FT1 mode and 56/64 kbps DDS mode.
T1/FT1 mode
56/64 kbps DDS mode
Within T1/FT1 Mode operation, the user is able to view the current status
of the Serial Port control signals. From the Diagnostics Main Menu,
SELECT
Ser Port Ind and then use
UP/DOWN
arrows to scroll through
the following control signals:
Request To Send
RTS.
Data Terminal Ready
DTR.
Within 56/64 kbps Mode operation, the user is able to view the current
status of the Serial Port control signals. From the Diagnostics Main
Menu,
SELECT
Ser Port Ind and then use
UP/DOWN
arrows to scroll
through the following control signals:
Transmit Data
TXD.
Receive Data
RXD.
Carrier Detect
CD.
Clear To Send
CTS.
Request To Send
RTS.
Data Terminal Ready
DTR.
5-8
AS56 and AS56
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Utilities
Utilities
From the Utilities Main Menu,
View Unit Type
■
The unit type can only be
changed
Set Date and Time
■
through the terminal.
SELECT
viewed
then use
UP/DOWN
through the front panel bu t it can be
After selecting Set Date/Time from the Utilities Menu, use the
DOWN
arrows to scroll through the parameter selections (hour,
minutes, seconds, day, month, year) and
SELECT
parameter you wish to increment the time and date.
to choose the
END
back to the Utilities Menu.
Edit Unit ID#.
■
After selecting Edit Unit ID from the Utilities Menu, use the
DOWN
arrows to move the curs or to the next digit of the ID number.
SELECT
increments each digit from 0-9.
takes you back to the
END
Utilities Menu.
Clear BRAM. This function clears all user-entered configuration
■
parameters and returns the Access Syste m56 unit to the factory
default condition. USE WITH CAUTION.
Determine installed software level.
■
takes you back to the
END
Utilities Menu.
arrows to:
UP/
takes you
UP/
Configure Auxiliary NMS/Printer Port. See Chapter 6,
■
Ports
.
Note
: After selecting NMS/Printer Port from the Utilities Menu,
use the
UP/DOWN
arrows to choose Mode, Speed, or Edit IP
Auxiliary
Address.
• The options for Mode are SNMP NMS, Printer, or Disabled.
• The options for Speed are 1200, 2400, 4800, 9600, and 19200.
See Chapter 6,
Auxiliary Ports
.
takes you back to the Utilities
END
Menu.
AS56 and AS56
Plus
User Manual
5-9
Other Features
Events
The Access Syst em56 constantly monitors for the occurrenc e of “events”
such as alarms, test commands, and system resets. When an event occurs,
a description with a time and date stamp is immediately sent out the
printer port. The format and interpretation of printed events are shown on
the next page.
In addition, the Acce ss System 56 maintains a log of the most recent
sixteen event s and that log can be accessed by either the front panel
controls and LCD panel or an externally attached terminal. Refer to
Chapter 6,
Auxiliary Ports
, for terminal access of the Event Log.
From the Event L og Main Menu,
SELECT
view the stored e v ents and/or c lear the log. (The lo g is cleared is
then use
UP/DOWN
arrows to
SELECT
is depressed when the screen displays Clear Event Log.) The format of
an LCD screen event is below. Interpretation of the events is the same as
shown on the next p age for printed events.
NN S Event Description
HH:MM:SS MM/DD
NN is the Event sequence number S indicates that the Event is the Start
of an occurrence. E is used to indicate that the Event is the End of an
occurrence.
Event Printing
Following is a sample of an event format.
Format and Sample Entry
Unit ID Seq. Num Time Date Status Event
0012345 01155 10:39:39 02/25 End Port 1 LL
5-10
AS56 and AS56
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T1/FT1 Events
Type Text Description
System UNIT START Access Syst em56 power up or initialization sequence
BRAM CLEAR N o n -volatile memory has been cleared
CFG ERROR Error detected in non-volatile memory
Alarm NI RED Network Interface is in Red Alarm
NI AIS Network Interface is r eceiving all “Ones”
NI YEL Network Interface is receiving Yellow Alarm
NI CRC Network Interface is experiencing CRC6 Errors
NI LOS Network Interface is in a Los of Signal condition
NI FSS Network Interface is in a Failed Signal State
NI FERR Network Inter fa ce is experiencing Framing Errors
Diagnostic DTE LL Serial Port is in Local Digital Loopback
DTE RL Serial Port is in Remote Digital Loopback
NI LLB The Network Interface is in Local Line Loopback
NI RLB The Ne t w ork Interface is in Remo te Line Loopback
NI PLLB The Network Interface is in Payload Loopback
NI CSU LL The Network Interface is in Local CSU Loopback
Events
Indications DTE CON Serial Port is connected (DTR/RTS asserted)
DTE DISC Serial Port is disconnected
AS56 and AS56
Plus
User Manual
5-11
Other Features
56/64 kbps DDS Events
Type Text Description
System UNIT START Access Syst em56 power up or initialization sequence
BRAM CLEAR N o n -volatile memory has been cleared
CFG ERROR Error detected in non-volatile memory
Alarm Net OOS Unit is receiving Out of Service from the network
Net OOF Unit is receiving O u t of Frame from the network
Net CMI Unit is receiving Control Mode Idle from the network
Net Ferr Unit is experiencing Framing errors
Net LOS Unit is in a Loss of Signal condition
Diagnostic Net CSU Lp Unit is in CSU Loopback
Net DSU Lp Un it is in DSU Loopback
Remote Lp Unit is in Remote CSU Loopback
Lcl CSU Lp Unit is in a Local CSU Loopback
Indications DTE CONN Serial Port is connected (DTR/RTS asserted)
DTE DISC Serial Port has detected Loss of Signal (disconnected)
5-12
AS56 and AS56
Plus
User Manual
Chapter
6 Auxiliary Ports
The Access Syst em56 includes two RS-232 “auxiliary” ports. The
Console port allows the user to connect an external terminal (or PC with
terminal emulation). The connected terminal can perform all the
functions of the
panel. Usage of this terminal is highly recommended by Verilink as the
CRT display is not constrained by the limitations of the LCD panel and,
as a result, the user is presented with a more comprehensive indication of
available choices and Access Syst em56 results.
The “SNMP” port is a dual function port. First, it allows the user to
connect an external printer to obtain a hard copy of configuration,
statistics, alarm and real-time events. Second, it enables an SNMP
Network Management console to be connected to the unit. The A ccess
System 56 unit is configurable for communicating with either one or the
other, but n o t both.
UP, DOWN, SELEC
, and
buttons on the front
END
AS56 and AS56
Plus
User Manual
6-1
Auxiliary Ports
Cabling
The table below provides a summary of the Verilink cables available for
the Centum series.
Shipped
Verilink Cable
Number
CBE 010-56001 15 ft. Yes 8-pin to 8 - pin modular Male-to-Male for network
CBE 020-09025 4 ft. Yes DE-9 male to DB-25 male for direct connection to
458-501983-015 15 ft. No V.35 Male to Ma le, DCE t o DTE Application
458-501792-015 15 ft. No 25D-type with RS-530 specification. Male-to-Male Application
458-501776-015 15 ft. N o V.35 Male-to-Male for external timin
458-501791-015 15 ft. No RS-530 Male-to-Male for exte rna l timing
458-502361-015 15 ft. No 25D-type (RS-530) Male to 37-pin (RS-449) Female Application
458-502362-015 15 ft. No 25D-type (RS-530) Male to 37-pin (RS-449) Male Application
458-502363-015 15 ft. No 25D-type (RS-530) Male to 37-pin (RS-449) Female
458-502364-015 15 ft. No 25D-type (RS-530) Male to 37-pin (RS-449) Male for
a. External Timing is the same as DSU-X, for a cross-over cable.
b. Adapter cables are used to convert between a 25-pin connector on the rear of the box to a 37-pin con
nector on the customer apparatus.
Length
with
Product
connection
mode
Adapter Cables
for external timing
external timing
a
Description Type of Cable
a
a
b
(below)
a
Networ
Management
Application
Application
Application
Application
Auxiliary ports
6-2
AS56 and AS56
Plus
User Manual
For additional cable and pinout detail, see the following sections of this
manual:
Appendix A,
■
Appendix B,
■
Standard Cabling for U ser Ports
Special Serial Port Cabling
.
Both auxiliary ports consist of 9-pin D-type femal e conne ctors. Because
the ports are permanently DCE, there are two configurations for the
required cabling, depending on whet her the conne ctions are “direct” or
via modems.
The following cables are recommended:
Cabling
CBE-020-09025.
9-pin D-type male to 25-pin D-type ma le for dire ct
connection of a terminal or a printer. Four feet long. Cable is included.
CBE-021-09025
9-pin D-type male to 25-pin D-type male for direct
connection of a modem. Four feet long. Cable is optional at extra cost.
Appendix A,
Standard Cabling for U ser Ports
, lists the pin assignments
for the auxiliary ports.
AS56 and AS56
Plus
User Manual
6-3
Auxiliary Ports
Rear panel views
The two following figures show the rear pa nel views of the AS56
AS56, respectively. As an example, the AS56
detail.
Figure 6-1 Rear Panel of Access System 56
D-series 25-pin Receptacle
SERIAL PORT
.............
............
Data Application Port (DCE)
Network Connections (RJ-48C Configuration)
Serial Printer Support a nd SNMP Access
ASCII Terminal Access
Power cord connection
Figure 6-2 Rear Panel of Access System 56 CSU/DS
SERIAL PORT
.............
............
Plus
T1 CSU/DSU
8-pin
Modular Jacks
NETWORK INTERFACES
T—1 56 Kbps-DDS
NETWORK INTERFACES
T—1 56 Kbps-DDS
Plus
rear panel is labeled in
D-series 9-pin Receptacles
SNMP CONSOLE
SNMP CONSOLE
Plus
and
6-4
AS56 and AS56
Plus
User Manual
The serial port provides the following interface options:
EIA 530 and RS-232 by direct connection
■
RS-422/449 with a Verilink adapter cable, and
■
V.35 with the adapter module shown in FigureA- 1, V.35 Adapter
■
Module Pin Assignments on page A-4.
Terminal Configuration
Before connecting t he termi nal set it to 1200, 240 0, 4800 or 9 600 bps and
8-1-N (eight data bits, one stop bit, no parity). Configure/set the terminal
to provide RTS high at all times.
To operate:
1. Connect the terminal to the Access System56's “Console” port
using the CBE-020-09025 cable.
2. Apply power to the AS56 unit and ensure that it performs its
initialization cycle successfully and displays the Main Menu on the
front panel LCD display.
3. Apply power to the terminal, allow it to complete its initialization
cycle and depress <CR>. The unit will respond with the following
text:
Terminal Confi guration
==>
Verilink Corporation
Connected @9600bps
Enter password followed by carriage return:
==>
4. Enter the default password, <CR>. The unit will respond with the
Termin al Selection Menu.
Verilink Corporation
Access System 56 Product Series
Terminal Selection Menu
(A) A.D.D.S. Viewpoint (B) A.D.D.S Regent 25
(C) Data General DASHER (D) Datamedia 1521
(E) Datamedia EXCEL 30 (F) DEC VT-52
(G) DEC VT-100/131/220 (H) IBM 3101
(I) Datamedia EXCEL 42 (J) FREEDOM 100
(K) ICL 6401 (L) L.S.I. ADM 11, 31
(M) Qume QVT-102, 108 (N) Televideo 900 Ser.
(O) Wyse WY-50 (P) Paradyne 7811
(Q) Teletype 5410, 5425 (R) ATTIS 4410, 4425
==> Enter Terminal Selection..
Add 1 screen
AS56 and AS56
Plus
User Manual
6-5
Auxiliary Ports
The Utilities Menu can be used to change the password.
The auxilia ry ports dep end on RTS from a t erminal (o r CD from a
modem) to indicate a connected device. Every time that RTS (or CD) is
lowered and subsequently rai s e d, the unit assumes the possibility that a
different terminal has been attached and will again present the user with
the password entry screen.
After selecting a terminal type, the user is presented with a Main Menu on
the CRT screen and is allowed access to all configuration, test and query
functions pro vided by the Access System 56 unit.
6-6
AS56 and AS56
Plus
User Manual
Terminal Operation
r
Because the terminal functions are identical to the front panel functions
previously described in this manual (except for a more comprehensive
display), their descriptions are not repeated here. Instead, screen displays
for the T1 ESF CSU and the DDS 56/64 kbps CSU are shown, begi nning
with the Main Menu below. The user is advised to peruse the CR T menus
while reviewing the front panel descriptions. In all cases,
advances the cursor,
selects an entry, and
=>
**** ****
**** **** T-1 ESF CSU/DSU MAIN MENU
**** ****
**** **** System Configuration
**** **** Serial Port Diagnostics/Indicato
***** **** System Alarms and Statistics
**** **** ESF Registers
**** **** Event Log
******** System Utilities
******
Verilink Corporation Cursor Back = [BS]
AS56 Plus T-1 CSU/DSU Select Entry = [ENTER]
Software: S:1.18 X:423438 Acknowledge Alarm = [ESC]
April 26, 1996 14:30:05 Hangup Modem = [Ctrl-E]
Unit ID........: 01234567
Front Panel: ENABLED
System Status..: *****NTWK ALARM*****K
moves the cursor back,
BS
acknowledges an alarm.
ESC
Add 1 screen
Cursor Forward = [SPACE]
Deactivate Console = [X]
Terminal Operation
SPACE
ENTER
or
RETURN
Selecting the operating mode
If you have purchased the AS56
Plus
unit, you can select one of two
network interface operating modes: T1/FT1 mode or 56/64 kbps DDS
mode. Changing the operating mode can only be accomplished by using
the ASCII console interface. Select the mode as follows:
AS56 and AS56
Plus
User Manual
6-7
Auxiliary Ports
1. From the Main Menu, select System Utilities. The following menu
appears.
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
System Utilities
Set System Time
Set System Date
Enter Unit Identification Number
Clear System Configuration
Configure Console and Printer Ports
Enter AutoDial Parameters
Enter Password
Disable Front Panel
Enter Unit IP Address
>>> Select Network Interface Type <<<
Cursor Forward = [SPACE] Select Entry = [ENTER]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
Add 1 screen
6-8
Verilink Corporation April 26, 1996
AS56 CSU/DSU 14:37:02
Unit ID: 01234567
*************************************************
* *
* Unit Type: AS56 Plus CSU/DSU *
* (CR) to Select Type, (S)ave or (Q)uit *
* *
*************************************************
AS56 and AS56
Plus
User Manual
From this menu, select >>> Select Network Interface Type<<<.
Select the desired Unit Type.
2.
(CR) = AS56 Plus T-1 CSU/DSU or AS56 CSU/DSU
Terminal Operation
a. If you select
*************************************************
* *
* Unit Type: AS56 Plus CSU/DSU *
*<<<<< Are you sure?? >>>>>> *
* (S)ave or (Q)uit *
*************************************************
b. If you select
<<<<<<<<<< W A R N I N G >>>>>>>>>>
You have CHANGED the NETWORK INTERFACE selection!!!
The digital service provided MUST MATCH the network interface!!
The unit will restart to activate the new interface.
The console will be disconnected..wait 3 seconds then...
Press [Enter] once or twice to re-establish the console connection.
You may CANCEL this operation NOW by pressing (Q)uit..
To complete the network interface change..press (Y)es
(S)ave
, the following appears on the screen:
(S)ave
, the following appears on the screen:
AS56 and AS56
Plus
User Manual
6-9
Auxiliary Ports
o
Configuration Menus
This section describes the systemconfiguration menus for T1/FT1 mode
and 56/64 kbps DDS mode.
T1/FT1 mode
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
SYSTEM CONFIGURATION
Network (NI) Serial Port Configurati
Configuration Port #1
Framing...: D4 Speed....: 56K (1 DS0)
Line Code.: AMI First DS0: 08
LBO.......: 0 db DS0 Order: Alternate DS0s
Density...: Clear Interface: V.35
NTWK Loops: Yes DCD......: Off
Yellow Alm: Yes Data.....: Inv
ESF Format: 54016 Clock....: Norm
CRT Alarm.: Off Timing...: Internal
System Clock
Source....: Int
View DS0 Allocations = [V]
Cursor Forward = [SPACE] Next/Previous Entry = [ENTER]/[B]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
From the terminal’s T1 Main Menu, the user has selected System
Configuration and is presented with the following menu.
Add 1 screen
Rem Loop.: Enabled
From this menu, the user can view and/or change all Access Sy stem56
configuration parameters. Please refer to Chapter 3,
Installing the Access Syst em56
, before changing any parameter(s).
Configuring and
6-10
AS56 and AS56
Plus
User Manual
By selecting View DS0 Allocations, the user can view all DS0
assignments on a single screen. This is the same function as
“T-Channels”,
on page 3-18.
Checking the
Note that “Idle” refers to channels that have been configured as “Not
Used” in the Access Syst em56.
Configuration Menus
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
T-Channel (DS0) Allocation
DS0 # Mode DS0 # Mode
01: Idle 13: Idle
02: Idle 14: Idle
03: Idle 15: Idle
04: Idle 16: Idle
05: Idle 17: Idle
06: Idle 18: Idle
07: Idle 19: Idle
08: Port 1 20: Idle
09: Idle 21: Idle
10: Idle 22: Idle
11: Idle 23: Idle
12: Idle 24: Idle
Return to System configuration Menu + [X]
Add 1 screen
AS56 and AS56
Plus
User Manual
6-11
Auxiliary Ports
56/64 kbps DDS mode
**** ****
**** **** 56/64 KBPS CSU/DSU MAIN MENU
**** ****
**** **** System Configuration
**** **** System Alarms and Diagnostics
***** **** Serial Port Indicators
**** **** Event Log
**** **** System Utilities
********
******
Verilink Corporation Cursor Back = [BS]
AS56 CSU/DSU Select Entry = [ENTER]
Software: S:1.18 X:423438 Acknowledge Alarm = [ESC]
April 26, 1996 14:30:05 Hangup Modem = [Ctrl-E]
Unit ID........: 01234567
Front Panel: ENABLED
System Status..: *****NTWK ALARM*****
Verilink Corporation Feb 22, 1995
AS56 CSU/DSU 14:37:02
Unit ID: 01234567
SYSTEM CONFIGURATION
From the terminal’s DDS Main Menu, the user has selected System
Configuration and is presented with the System Configuration menu.
Add 1 screen
Cursor Forward = [SPACE]
Deactivate Console = [X]
From this menu, the user can view and/or cha n ge all AS56 configuration
parameters. Please refer to Chapter 3,
Access Sys tem56
, before changing any parameter( s).
Configuring and Installing the
Add 1 screen
6-12
Network Serial Port Configuration
Configuration
Speed.....: 56 Kbps Interface: V.35
Ntwk Diags: Yes CD.......: On
Scrambler.: Yes Data.....: Inv
DTE LOS...: None Clock....: Norm
CRT Alarm.: Off Clocks...: Internal
Source....: Int
Cursor Forward = [SPACE] Next/Previous Entry = [ENTER]/[B]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
AS56 and AS56
Plus
User Manual
Rem Loop.: Enabld
Link Alarms and Diagnostics
This section discusses the link alarms and diagnostics for T1/FT1 mode
and 56/64 kbps DDS mode.
Link Alarms and Diagnostics
T1/FT1 mode
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
Network Interface (NI) Network Interface (NI)
Alarms Diagnostics
State ErrSec
AIS No 00000 Local Loop.: Off
Red Yes 01899 NI LLB.....: Off
Yel No 00001 NI RLB.....: Off
Ferr No 00001 PAYLD Loop.: Off
CRC6 No 00000
BPV No 00001 Loop Ind...: On
LOS Yes 01899 BER Pattern: 2047
BERT.......: Off >> [E] to Insert BER Errors
Err Secs...: 00038
Sec/Test...: 00038
Reset Counters = [R]
Cursor Forward = [SPACE] Next/Previous Entry = [ENTER]/[B]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
The user has selected System Alarms and Diagnostics from the
terminal's T1 Main Menu and is presented with the menu de picted belo w.
The network alarms and diagnostics are described in
Mode
on page 4-2,
Definitions
on page 5-3.
Alarms and Statistics
on page 5-1, and
Testing in T1/FT1
Alarm
Add 1 screen
System Alarms and Diagnostics
56/64 kbps DDS mode
The user has selected System Alarms and Diagnostics from the
terminal's DDS Main Menu and is presented with the menu depicted
Plus
User Manual
T esting in 56/
below. The network alarms and diagnostics are de scribed in
AS56 and AS56
6-13
Auxiliary Ports
2
64 kbps DDS Mode
Alarm Definitions
on page 4-9,
on page 5-3.
Alarms and Statistics
on page 5-1, and
Verilink Corporation April 26, 1996
AS56 CSU/DSU 14:37:0
Unit ID: 01234567
System Alarms and Diagnostics
Network Alarms Network Diagnostics
LOS.........: No 00000 Local Loop....: Off
Out of Frame: Yes 01899 CSU Loop......: Off
Out of Svc..: No 00001 DSU Loop......: Off
Frame Err...: No 00001 Remote Loop...: Off
CMI.........: No 00000 Loop Ind......: On
BPV.........: No 00001
DTE LOS.....: Yes 01899 BERT.......: Off
Local ES...: 00038
Remote ES..: 00038
Sec in Test: 00038
Insert BER Errors = [E]
Reset Counters = [R]
Cursor Forward = [SPACE] Next/Previous Entry = [ENTER]/[B]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
Add 1 screen
State ErrSec
6-14
AS56 and AS56
Plus
User Manual
Serial Port Diagnostics/Indicators
This section discusses the serial port diagnostics and indicators for T1/
FT1 mode and 56/64 kbps DDS mode.
Serial Port Diagnost ic s/I n d ica t o rs
T1/FT1 mode
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
System Diagnostics & Indicators
Serial Port
Diagnostics Indicators
Local Loop.: Off Rx Data.: Off
Remote Loop: Off Tx Data.: Off
BERT.......: Off RTS.....: Off
DCD.....: Off
Local ES...: 00190 DTR.....: Off
Remote ES..: 00226 Loop Ind: Off
Sec in Test: 00001
Depress [E] to insert errors in BER Test pattern.
Cursor Forward = [SPACE] Select Entry = [ENTER]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
The user has selected Serial Port Diagnostics/ Indicators from the
terminal's T1 Main Menu and is presented with the menu depicted below.
This menu provides the functions described in
on page 4-2. Also, see the description,
Alarms and Statistics,
Test i ng in T1 / F T1 Mode,
on page 5-1.
Add 1 screen
56/64 kbps DDS mode
The user has selected Serial Port Indicators from the terminal's DDS
Main Menu and is presented with the menu depicted below. This menu
provides the functions described in
Serial Port Indicator ,
AS56 and AS56
Plus
on page 5-8.
User Manual
6-15
Auxiliary Ports
6
0
Verilink Corporation April 26, 199
AS56 CSU/DSU 14:37:
Unit ID: 01234567
Serial Port Indicators
Indicators
Cursor Forward = [SPACE] Next/Previous Entry = [ENTER]/[B]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
Add 1 screen
Rx Data.: Off
Tx Data.: Off
RTS.....: Off
DCD.....: Off
DTR.....: Off
Loop Ind: Off
6-16
AS56 and AS56
Plus
User Manual
ESF Registers (T1/FT1 mode)
From the terminal’s T1 Main Menu, the user has selected ESF Registers
and is presented with the following menu.
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
ESF Registers
ESF Statistics
Register Current 24 Hour
Errored Seconds.........: 000 00000
Failed Seconds (UAS)....: 201 01250
Severely Errored Seconds: 000 00000
Bursty Errored Seconds..: 000 00000
Loss of Frame Count.....: 000 00001
Time in Interval........: 201
# Valid Intervals.......: 003
ESF Status..............: FU000000
ESF Registers (T1/FT1 mode)
Add 1 screen
Display ESF Network Registers = [R]
Return to Previous Menu = [X]
AS56 and AS56
Plus
User Manual
6-17
Auxiliary Ports
The user can then proceed to this next menu for detailed information.
These menus prov ide the functions described in
(T1/FT1 Mode),
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
ESF Registers
INT ES FS SES BES INT ES FS SES BES INT ES FS SES BES
01. 000 900 000 000 17. 33.
02. 000 350 000 000 18. 34.
03. 000 000 000 000 19. 35.
04. 20. 36.
05. 21. 37.
06. 22. 38.
07. 23. 39.
08. 24. 40.
09. 25. 41.
10. 26. 42.
11. 27. 43.
12. 28. 44.
13. 29. 45.
14. 30. 46.
15. 31. 47.
16. 32. 48.
Continue = [ENTER] Return to Previous Menu = [X]
on page 5-5.
Add 1 screen
ESF Statistics Definitions
6-18
AS56 and AS56
Plus
User Manual
Event Log (T1/FT1 Mode and 56 /64 kbps DDS mode)
Event Log (T1/FT1 Mode and 56/64 kbps DDS mode)
From the terminal’s T1 or DDS Main Menu, the user has selected Event
Log and is presented with the sixteen most recent events stored in the
Access Syst em56 unit (see below, and
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567 EVENT LOG
Unit ID Seq Num Time Date Status Event
01234567 13142 13:14:01 02/23 Start BRAM Clear
01234567 13143 13:14:03 02/23 Start Unit Start
01234567 13144 13:14:03 02/23 Start NI RED
01234567 13145 13:14:03 02/23 Start NI AIS
01234567 13146 13:14:07 02/23 Start NI LOS
01234567 13147 13:14:13 02/23 End NI AIS
01234567 13148 13:14:39 02/23 End DTE 1 LL
Clear Event Log = [C] Reset Sequence Number = [R]
Freeze Display = [F] Return to Previous Menu = [X]
Events
on page 5-10).
AS56 and AS56
Plus
User Manual
6-19
Auxiliary Ports
Utilities (T1 and 56/64 kbps DDS modes)
From the terminal's T1 or DDS Main Menu, the user has selected System
Utilities and is presented with the screen depicted below. See
page 5-9,
on page 6-29.
If you select Disable Front Panel, a message appears on the bottom of the
System Utilities menu:
If you select Enable Front Panel, a message appears on the bottom of the
System Utilities menu:
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
Terminal Configuration
on page 6-5, and
System Message: Front Panel has been
Disabled!
System Message: Front Panel now Enabled!
Add 1 screen
Utilities
on
Printer Configuration
6-20
System Utilities
Set System Time
Set System Date
Enter Unit Identification Number
Clear System Configuration
Configure Console and Printer Ports
Enter AutoDial Parameters
Enter Password
Disable Front Panel
Enter Unit IP Address
>>> Select Network Interface Type <<<
Cursor Forward = [SPACE] Select Entry = [ENTER]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
AS56 and AS56
Plus
User Manual
Utilities (T1 and 56/64 kbps DDS modes)
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
System Utilities
Set System Time
Set System Date
**********************************************
* *
* Enter Hr:Min:Sec => 15:06:43 *
* *
* End with [CR] *
**********************************************
Enter Unit IP Address
>>>Select Network Interface Type <<<
Cursor Forward = [SPACE] Select Entry = [ENTER]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
Add 1 screen
AS56 and AS56
Plus
User Manual
6-21
Auxiliary Ports
Verilink Corporation April 26, 1996
AS56 Plus T-1 CSU/DSU 14:37:02
Unit ID: 01234567
System Utilities
Set System Time
Set System Date
**********************************************
* *
* Enter Mon/Day/Yr => 02/22/95 *
* *
* End with [CR] *
**********************************************
Enter Unit IP Address
>>> Select Network Interface Type <<<
Cursor Forward = [SPACE] Select Entry = [ENTER]
Cursor Back = [BACKSPACE] Return to Previous Menu = [X]
Add 1 screen
6-22
AS56 and AS56
Plus
User Manual
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