NxDBU
OPTION MODULE
June 2000
61200158L1-1D
User Manua
Part Number
1200158L1#HS
l
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: (256) 963-8000
© 2000 ADTRAN, Inc.
All rights reserved.
Printed in USA.
Notes provide additional useful information.
Cautions signify information that could prevent service interruption.
Warnings provide information that could prevent damage to the
equipment or endangerment to hum a n life.
iii
Federal Communications Commission Radio Frequency Interference
Statement
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limit s are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interfer ence to radio fr eq uencies.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his
own expense.
Shielded cables must be used with this unit to ensure compliance with Class A
FCC limits.
Changes or modifications to this unit not expressly approved by
the party responsible for compliance could void the user’s authority to operate the equipment.
Warranty and Customer Service
ADTRAN will replace or repair this product within five (5) years fr om the date of
shipment if it does not meet its published specifications or fails while in service.
For detailed warranty, repair and return information See the ADTRAN Equipment Warranty and Repair and Return Policy Procedure.
Return Material Authorization (RMA) is requir ed prio r to r eturning equipment to
ADTRAN.
For Service, RMA requests, or more information, contact ADTRAN Technical
Support listed on the inside back page of this manual.
iv
LIMITED PRODUCT WARRANTY
ADTRAN warrants that for five (5) years from the date of shipment to Customer, all products manufactured by ADTRAN will be free from defects in
materials and workmanship. ADTRAN also warrants that products will conform to the applicable specifications and drawings for such products, as contained in the Product Manual or in ADTRAN's internal specifications and
drawings for such products (which may or may not be reflected in the Product
Manual). This warranty only appl ies if Customer gives ADTRAN written
notice of defects during the warranty period. Upon such notice, AD TRAN wi ll,
at its option, either repair or replace the defective item. If ADTRAN is unable,
in a reasonable time, to repair or replace any equipment to a condition as warranted, Customer is entitled to a full r efund o f the pur chase price upon r eturn of
the equipment to ADTRAN. This warranty applies only to the original purchaser and is not transferable without ADTRAN's express written permission.
This warranty becomes null and void if Customer modifies or alters the equipment in any way, other th an as specifically authorized by ADTRAN.
EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE, THE FOREGOING CONSTITUTES THE SOLE AND EXCLUSIVE REMEDY OF THE CUSTOMER AND THE EXCLUSIVE LIABILITY OF ADTRAN AND IS IN LIEU OF
ANY AND ALL OTHER WARRANTIES (EXPRESSED OR IMPLIED). ADTRAN SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, INCLUDING
(WITHOUT LIMITATIO N), ALL WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. SOME STATES DO NOT
ALLOW THE EXCLUSION OF IMPLIED WARRANTIES, SO THIS EXCLUSION MAY NOT APPLY TO CUSTOMER.
In no event will ADTRAN or its suppliers be liable to Customer for any incidental, special, punitive, exemplary or consequential damages experienced by
either Customer or a third party (including, but not limited to, loss of data or
information, loss of profits, or loss of use). ADTRAN is not lia ble for damages
for any cause whatsoever (whether based in contract, tort, or otherwise) in
excess of the amount paid for the item. Some states do not allow the limitation
or exclusion of liability for incidental or consequential damages, so the above
limitation or exclusion may not a pply to Customer.
v
vi
Table of Contents
List of Figures ............................................................................................................xi
List of Tables ........................................................................................................... xiii
Chapter 1. Introduction...........................................................................................1-1
Nx/DBU V.35 Option Module Overview .................................. ...... ..... ................1-1
Functional Description.......................................................................................1-1
Features of the Nx/DBU Option Module .............................................................1-2
Nx Features..........................................................................................................1-2
DBU Features.......................................................................................................1-2
Features Common to the Nx and the DBU.....................................................1-3
Interfaces..............................................................................................................1-3
Specifications of the Nx/DBU .................................................................................1-4
Specifications: Nx56/64 (DCE Interface) ...............................................1-4
Specifications: DBU (DTE Interface)................... ...... ..... .................................1-5
Specifications: Nx56/64 and DBU .............................................. ...........................1-5
Physical Description .................................................................................................1-6
Chapter 2. Installation.............................................................................................2-1
Unpack & Inspect ......................................................................................................2-1
ADTRAN Shipments Include ..........................................................................2-1
Customer Provides.............................................................................................2-1
Installing the Option Module ..................................................................................2-1
Placement of the Option Module .....................................................................2-2
Power Connection...............................................................................................2-2
Wiring...................................................................................................................2-3
Power-Up Testing and Initialization ......................................................................2-4
Chapter 3. Operation...............................................................................................3-1
Overview ....................................................................................................................3-1
Front Panel Indicators/Buttons........................................................................3-1
Menu Structure ...................................................................................................3-1
61200158L1-1 Nx/DBU Option Module User Manual vii
Table of Contents
Nx/DBU Menus Are All Submenus................................................................3-2
Operation .....................................................................................................3-3
5)PORT Status....................................................................................................3-4
Operation .....................................................................................................3-4
Nx/DBU Status Menu Options................................................. ...... ..... ............3-5
1)DTE DATA/CLOCK ....................................................... ...... .................3-5
2)DTE STATUS .............................................................. ...... ...... .................3-5
3)DTE PORT RATE ............................................................. .......................3-5
4)DBU DATA/CNTRL ..............................................................................3-6
5)DBU CONTROL ......................................................................................3-6
6)DBU STATUS ..........................................................................................3-7
7)PORT CONFIG, Submenu of 2)CONFIG...................................................3-7
Operation .....................................................................................................3-7
1)Nx56/64 CONFIG Menu Options...............................................................3-8
1)DS0 RATE ................................................................................................3-8
2)TX CLK CNTRL ......................................................................................3-9
3)DATA ........................................................................................................3-9
4)CTS .......................................................................................................... 3-10
5)DCD ........................................................................................................3-10
6)DSR .........................................................................................................3-10
7)0 INHIB ...................................................................................................3-10
8)INBAND MODE ...................................................................................3-10
9)TX CLK SOURCE ..................................................................................3-12
DBU CONFIG Menu Options.........................................................................3-12
1)Backup Mode .........................................................................................3-12
2)Backup On ..............................................................................................3-12
3)Pattern Verify ........................................................................................3-13
4)Backup Delay .........................................................................................3-13
5)Restore Delay ........................................................................................3-13
6)Retry Delay ............................................................................................3-14
7)Num Retries ...........................................................................................3-14
8)Backup Testing ......................................................................................3-14
9)WKEND Lockout ..................................................................................3-14
A)Enable HR: .......................... ....................................... ...... .....................3-14
B)Disable HR: ............................................................................................3-15
Trap in DBU: .............................................................................................3-15
2)FACTORY RESTORE, Submenu of 3)UTIL .....................................................3-15
Operation...........................................................................................................3-15
5)PORT UTILITY, Submenu of 3)UTIL ...............................................................3-15
Operation...........................................................................................................3-16
2)RUN SELF TEST, Submenu of 4)TEST .............................................................3-17
3)PORT TEST, Submenu of 4)TEST .....................................................................3-17
viii Nx/DBU Option Module User Manual 61200158L1-1
Table of Contents
Operation................................................................. ........................................ ..3-1 7
1.1 Nx/DBU Menu Options............................................................................3-18
1)DTE Loopback ................................................... ..... ...............................3-1 8
2)511 PATT ................................................................................................3-19
3)511RESULTS ..........................................................................................3-19
4)DBU LOOPBACK: (OFF/ON) ............................................................3-19
5)DBU TEST ...............................................................................................3-19
6)DBU DATA/CNTRL ............................................................................3-20
7)DBU TST RESULT .................................................................................3-20
Appendix A. System Messages........................................................................... A-1
Index ................................................................................................................. Index-1
61200158L1-1 Nx/DBU Option Module User Manual ix
Table of Contents
x Nx/DBU Option Module User Manual 61200158L1-1
List of Figures
Figure 1-1. Nx/DBU Option Module.....................................................................1-6
Figure 2-1. Installing the Option Module..............................................................2-2
Figure 3-1. TSU 100 Main Menu Tree.....................................................................3-2
Figure 3-2. Nx/DBU Option Module Menu Tree.................................................3-3
Figure 3-3. Port Status Submenu.............................................................................3-4
Figure 3-4. DBU Status Submenu ...........................................................................3-7
Figure 3-5. Port Configuration Submenu..............................................................3-8
Figure 3-6. Inband Remote Configuration...........................................................3-11
Figure 3-7. Port Utility Submenu..........................................................................3-16
Figure 3-8. Port Name and Software Version......................................................3-16
Figure 3-9. Port Test Submenu ..............................................................................3-17
Figure 3-10. DBU TST Result Submenu...............................................................3-20
61200158L1-1 Nx/DBU Option Module User Manual xi
List of Figures
xii Nx/DBU Option Module User Manual 61200158L1-1
List of Tables
Table 2-1. Nx V.35 Winchester Pin Connection...................................................2-3
Table 2-2. DBU V.35 Winchester Pin Connection................................................2-4
Table 3-1. Normal Mode Operation...................................................................... 3-9
61200158L1-1 Nx/DBU Option Module User Manual xiii
List of Tables
xiv Nx/DBU Option Module User Manual 61200158L1-1
Chapter 1 Introduction
Nx/DBU V.35 OPTION MODULE OVERVIEW
The Nx/DBU V.35 option module is one of the option
modules available for use with the following TSU units:
• TSU 100
• TSU 120
• TSU 600
• TSU 610
The Nx/DBU V.35 option module installs in the option
slot of the TSU units and provides an additional synchronous V.35 interface port with dial backup capability.
When used in these products, this interface port allows an
additional DTE to have access to the T1 service with dial
backup capability in the event of a T1 failure.
In the remainder of this manual, the module will be
called the Nx/DBU option module.
Functional Description
The Nx/DBU option module operates in the option slot of
the TSU units and is under the control of the TSU. The
Nx/DBU option module is configured from the front
panel or by an external PC program. The internal menus
for their configuration are part of the Nx/DBU option
module and are automatically installed when the Nx/
DBU is installed in a TSU unit.
61200158L1-1 Nx/DBU Option Module User Manual 1-1
Chapter 1.Introduction
FEATURES OF THE NX/DBU OPTION MODULE
Nx Features
• Data rates from 56 kbps to 2.048 mbps in 56K or 64K
increments
• Includes an elastic store for adsorption of rate variations
• Executes and responds to V.54 looping codes
• Outputs a 50 percent duty cycle output clock at all
rates
• Provides an inband control channel (8 kbps for network management communication)
• Generates and checks 511 test pattern toward network
• 511 pattern generator is capable of injecting errors
DBU Features
• Can verify integrity of dial-up netwo r k with a test
pattern without disrupting T1 data
• Detect no data transitions on the data received from
the network, with verify over inband channel
• User-definable delay between call retries if backup
connection is not successfully established
• User-definable verification of dial up network (Daily
Weekly, or On Command) without T1 data disruption
• Backup can be initiated by:
- Alarm conditions on network (AIS, RAI, or Red
Alarm)
- Absence of data transitions for a user-defined delay
• Uses 8 kbps channel to check end-to-end connectivity
before activating backup
• Disable backup based on hour of day and weekend
• Uses pattern to validate backup dial network
1-2 Nx/DBU Option Module User Manual 61200158L1-1
Features Common to the Nx and the DBU
The following features are common to the Nx and the
DBU:
• Configurable by using a PC program (T-Watch)
• Menu operation for easy configuration
• Performs self-test of option card hardware
• Can install multiple Nx/DBU modules in a TSU 600
• Hot-swappable
Interfaces
The following interfaces are used with the Nx/DBU:
• Two CCITT V.35 electrical (differential)
• Two V.35 Winchester connectors
Chapter 1.Introduction
61200158L1-1 Nx/DBU Option Module User Manual 1-3
Chapter 1.Introduction
SPECIFICATIONS OF THE NX/DBU
Specifications: Nx56/64 (DCE Interface)
DCE Interface CCITT V.35 synchronous
Rates 56 kbps to 2.048 mbps in 56K or 64K
increments
Clock Options Internal or internal-invert
Tests Local loopback (bilateral)
Remote loopback (V.54)
Test Pattern 511 with errored seconds display and error
inject capability
Data Inversion Menu selectable
1s Density
Protection
Force 1s to network after one second of
consecutive zeros from DTE
User-selectable (On/Off)
CTS, DCD, DSR Normal or Force On
Connector Winchester (V.35), female
1-4 Nx/DBU Option Module User Manual 61200158L1-1
Specifications: DBU (DTE Interf ace )
DTE Interface CCITT V.35 synchronous
Backup Delay 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min
DBU Dialing DTR dialing
Restore Delay 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min,
Never
Rates 56 kbps through 2.048 mbps in 56K or 64K
increments
Clocking Routes external DCE clocks to external DTE
when active
Connector Winchester (V.35) female
Tes t Loopback to DCE
Test dialup network
Force dial backup
SPECIFICATIONS: NX56/64 AND DBU
Chapter 1.Introduction
Mechanical Mechanically compatible with option slot of
all TSUs
Environmental Operating temperature from 0 °C to 45 °C
Tests Extensive self-test
61200158L1-1 Nx/DBU Option Module User Manual 1-5
Chapter 1.Introduction
PHYSICAL DESCRIPTIO N
The Nx/DBU option module plugs into the option slot in
the rear of the TSU family of products (see Figure 1-1).
HOT
REPLACEABLE
PORT X.1
The
numbering philosophy of the TSU product family. The
and
X.2
indication is linked to the port
X
represents the slot number into which the option module
is plugged.
• The TSU 100 has one option slot; therefore the port
designation is
1.1
.
• The TSU 120 has one option slot; therefore the port
designation is
1.1
.
• The TSU 600 and TSU 610 each have six option slots;
therefore the port numbers would be port
6.1
. The numbers appear in the front panel LCD
1.1
to port
menu display.
DBU V.35 (TO DCE)V.35 PORT X.1
Figure 1-1. Nx/DBU Option Module
1-6 Nx/DBU Option Module User Manual 61200158L1-1
Chapter 2 Installation
UNPACK & INSPECT
Carefully inspect the option module for any shipping
damage. If damage is suspected, file a claim immediately
with the carrier and then contact ADTRAN Technical
Support. If possible, keep the original shipping container
for use in shipping the option module back for repair or
for verification of damage during shipment.
ADTRAN Shipments Include
• The Nx/DBU Option Module
• The Nx/DBU Option Modu l e Us er Man u al (to be inserted into main TSU user manual)
Customer Provides
• DTE cable
• DCE cable
INSTALLING THE OPTION MODULE
61200158L1-1 Nx/DBU Option Module User Manual 2-1
Chapter 2. Installation
Placement of the Option Module
Figure 2-1 shows proper placement of the option module.
Perform the following steps to install the option module:
1. Remove the cover plate from the TS U unit rear panel.
2. Slide the option module into the rear panel of the
TSU unit until it is positioned firmly against the front
of the unit.
3. Fasten the thumbscrews at both edges of the option
module.
Cover Plate
TSU
UNIT
Option Module
Figure 2-1. Installing the Option Module
Power Connection
Each option module derives power from the base TSU
unit. Power to the TSU is supplied by a captive 8-foot
power cord.
2-2 Nx/DBU Option Module User Manual 61200158L1-1
Wiring
Chapter 2. Installation
The Nx/DBU option module has two V.35 Winchesterstyle connections. The Nx connections are defined in Table 2-1, below. The DBU connections are defined in Table
2-2 on page 2-4.
Table 2-1. Nx V.35 Winchester Pin Connection
Pin CCITT Description
A
B
C
D
E
F
H
J
L
N
R
T
V
X
P
S
Y
AA
U
W
NN
101
102
105
106
107
109
-
-
-
104
104
115
115
103
103
114
114
113
113
-
Protective ground PG)
Signal ground (SG)
Request to send (RTS) from DTE
clear to send (CTS) to DTE
Data set ready (DSR) to DTE
Received line signal detector (DCD) to DTE
Data terminal ready (DTR) from DTE
Ring Indicator (RI)
Local loopback (LL) from DTE
Remote loopback (RL) from DTE
Received data (RD-A) to DTE
Received data (RD-B) to DTE
RX clock (RC-A) to DTE
RX clock (RC-B) to DTE
Transmitted data (TD-A) from DTE
Transmitted data (TD-B) from DTE
TX clock (TC-A) to DTE
TX clock (TC-B) to DTE
External TX clock (ETC-A) from DTE
External TX clock (ETC-B) from DTE
Test mode (TM) to DTE
61200158L1-1 Nx/DBU Option Module User Manual 2-3
Chapter 2. Installation
Pin CCITT Description
Table 2-2. DBU V.35 Winchester Pin Connection
A
B
C
D
E
F
H
J
R
T
V
X
P
S
Y
AA
101
102
105
106
107
109
104
104
115
115
103
103
114
114
Protective ground PG)
Signal ground (SG)
Request to send (RTS) to DCE
Clear to send (CTS) from DCE
Data set ready (DSR) to DCE
Received line signal detector (DCD) from DCE
Data terminal ready (DTR) to DCE
-
Ring Indicator (RI) from DCE
-
Received data (RD-A) from DCE
Received data (RD-B) from DCE
RX clock (RC-A) to DTE
RX clock (RC-B) from DCE
Transmitted data (TD-A) to DCE
Transmitted data (TD-B) to DCE
TX clock (TC-A) from DCE
TX clock (TC-B) from DCE
POWER-UP TESTING AND INITIALIZATION
The option module executes a self-test during the powerup sequence, as described in the TSU manual. No initialization input is required. Upon power-up, any previously configured setting for the option module is
automatically restored.
When the self-test is complete and configuration is su ccessfully restored, the LED labeled OK in the module
group on the front panel turns
O
. For more information
N
on front panel operation, see the Operation chapter o f the
appropriate TSU user manual.
If any alarms are detected during operation, the red LED
labeled
turns
2-4 Nx/DBU Option Module User Manual 61200158L1-1
ALARM
O
.
N
in the module group on the front panel
Chapter 3 Operation
OVERVIEW
The Nx/DBU option module is controlled as part of the
TSU using the same methods as described in the appropriate TSU user manual.
Front Panel Indicators/Buttons
Refer to the description of the front panel indicators and
buttons in the appropriate TSU user manual.
Menu Structure
The Nx/DBU option module menus appear as a subset
of, and operate the same as, menus for the TSUs. The
menus are accessed by selecting
PORT
menu items.
The main menu for the TSU 100 is used for illustrative
purposes. The main menus for the other TSU units operate in a similar way. Figure 3- 1 on page 3-2 shows the
TSU 100 main menu with the
items printed in bold, italicized letters.
1.1 N
/DBU
X
PORT 1.1 N
under the
/DBU
X
menu
A complete TSU 100 menu tree diagram is found in the
TSU 100 User Manual.
61200158L1-1 Nx/DBU Option Module User Manual 3-1
Chapter 3. Operation
TSU 100 6) DS0 MAP B 1) TIME/DATE
MAIN MENU
1) NI PERF REPORTS
1) STATUS 2) NI ERRORS
3) ACTIVE ALARMS
1) NETWORK (NI) 4 ) VIEW HISTORY
2) UNIT
3) MAP XCHNG
2) CONFIG 4) MAP IN USE A (B)
5) DS0 MAP A
7) PORT CONFIG 2) FACTORY RESTORE
3) UTIL 4) UNIT ID
1) NETWORK TESTS 6) SOFTWARE REV
4) TEST
2) RUN SELF TEST
3) PORT TEST
4) CANCEL TEST
5) PORT STATUS
3) SET PASSCODE
5) PORT UTILITY
7) ENET ADDRESS
8) SERIAL NUMBER
Figure 3-1. TSU 100 Main Menu Tree
Nx/DBU Menus Are All Submenus
The Nx/DBU option module menus are accessed from
and operated the same as menus for the TSU 100. Menu
items in the main menu in Figure 3-1 printed in bold italics are submenu choices for the Nx/DBU option module.
See Figure 3-2 on page 3-3 for the menu tree for each of
these submenu options. Each of the these submenu items
is discussed in the following paragraphs. All are accessed
by the same method.
3-2 Nx/DBU Option Module User Manual 61200158L1-1
Operation
With the cursor on one of the four main menu choices,
Enter or the number key. The results are a display
press
of the first two submenu items with the cursor on the first
item. Use the
desired item then press
scroll down key to place the cursor on the
Enter. This displays the first two
submenu choices. The Nx/DBU option module menu
tree selections are discussed in the sections following Figure 3-2.
1) DTE DATA/CLOCK
2) DTE STATUS 1) DS0 RATE
3) DTE PORT RATE 2) TX CLK CNTRL
4) DBU DATA/CNTRL 3) DATA
1) STATUS
2) CONFIG
NX/DBU 3) PATTERN VERIFY
MENU 4) BACKUP DELAY
3) UTIL
4) TEST
5) PORT STATUS
7) PORT CONFIG
2) FACTORY
RESTORE
5) PORT UTILITY
2) RUN SELF
TEST
3) PORT TEST
5) DBU CONTROL 4) CTS
6) DBU STATUS 5) DCD
6) DSR
1) NX56/64 CONFIG 7) “0” INHIB
8) INBAND MODE
1) BACKUP MODE
2) DBU CONFIG 2) BACKUP ON
5) RESTORE DELAY
6) RETRY DELAY
SW REV 7) NUM RETRIES
8) BACKUP TESTING 1) BACKUP TEST
9) WKEND LOCKOUT 2) TEST HOUR
A) ENABLE HR 3) TEST DAY
B) DISABLE HR
1.1 NXDBU 1) DTE LOOPBACK
2) 511 P ATT
3) 511 RESULTS
4) DBU LOOPBACK
5) DBU TEST
6) DBU DATA/CNTRL
7) DBU TST RESULT
Chapter 3. Operation
Figure 3-2. Nx/DBU Option Module Menu Tree
61200158L1-1 Nx/DBU Option Module User Manual 3-3
Chapter 3. Operation
5)PORT Status
Operation
The Status menu branch allows you to view the status of
the TSU 100 operation. It displays the status of the monitored signal line on the Nx/DBU option module and the
data rate for which the option module is configured.
To display Figure 3-3 on the TSU 100, starting with the
cursor on main menu item
STATUS
, do the following:
1. Press
Enter or the number 1 key. This displays the
first two Status submenu items with the cursor on
1)NI PERF RPTS
2. Use the
STATUS
Scroll Down key to place the cursor on
and press
.
PORT
Enter. This displays the first
available port.
1.1 N
3. Use the scroll keys to find
Enter.
/DBU
X
and press
Figure 3-3. Port Status Submenu
The base Nx interface offers the status screens listed in
this manual. For other option modules, refer to the appropriate manual.
3-4 Nx/DBU Option Module User Manual 61200158L1-1
Nx/DBU Status Menu Options
Select the
are available:
1)DTE DATA/CLOCK
Shows the status (active or not active) of th e following
lines:
TXD
Transmit data to the DTE
RXD
Receive data from the DTE
ETC
External transmit clock from DTE
LCK
Lock status of the phase locked loop
1.1 N
Chapter 3. Operation
/DBU
. The following five menu options
X
2)DTE STATUS
Shows the status (active or not active) of th e following
lines:
RTS
Request to send from DTE
CTS
Clear to send to DTE
DCD
Data carrier detect to DTE
DSR
Data set ready to DTE
3)DTE PORT RATE
Displays the data rate to which the Nx port is set.
61200158L1-1 Nx/DBU Option Module User Manual 3-5
Chapter 3. Operation
4)DBU DATA/CNTRL
5)DBU CONTROL
Shows the status (active or not active) of the following
lines:
TXD
Transmit data to the DCE
RXD
Receive data from the DCE
DCD
Data carrier detect from DCE
RI
Ring indicate from DCE
Shows the status (active or not active) of the following
lines:
RTS
Request to send to DCE
CTS
Clear to send from DCE
DTR
Data terminal ready to DCE
DSR
Data set ready from DCE
3-6 Nx/DBU Option Module User Manual 61200158L1-1
6)DBU STATUS
Chapter 3. Operation
Shows current backup state (see Figure 3-4).
Figure 3-4. DBU Status Submenu
DBU SECS Total seconds the option module has
been in backup.
IN DBU - Yes Module is in backup mode.
IN DBU - No Module is not in backup mode.
To exit the display, see the the appropriate TSU user manual.
7)PORT CONFIG, Submenu of 2)CONFIG
7)PORT CONFIG
The
of the Nx/DBU option module.
Operation
To display the screen shown in Figure 3-5 on page 3-8, on
the TSU 100, position the cursor on
following:
1. Press
Enter or the number 2 key. This displays the
first two Configuration submenu items with the cursor on
2. Use the
CONFIG
NETWORK (NI)
Scroll Down key to place the cursor on
and press
3. Use the scroll keys to identify
module. Only the bottom line of the display
changes.
61200158L1-1 Nx/DBU Option Module User Manual 3-7
submenu is used for configuration
CONFIG
, and do the
.
PORT
Enter.
1.1 N
/DBU
option
X
Chapter 3. Operation
Figure 3-5. Port Configuration Submenu
4. To select
P
ORT CONFIGURATION
plays the following menu option s:
- Nx56/64 CONFIG
- DBU CONFIG
5. Place the cursor over the desired option and press
Enter to configure.
Menu options for the Nx56/64 and the DBU are given in
the following pages.
1)Nx56/64 CONFIG Menu Options
56/64
Select the
eight menu options:
1)DS0 RATE
This sets the base rate of the interface. The actual data rate
depends on the number of DS0s assigned to the DTE Data
Rate Chart in the TSU 100 User Manual.
Choices - 56K or 64K
1)N
X
, press Enter. This dis-
menu option to access the following
3-8 Nx/DBU Option Module User Manual 61200158L1-1
2)TX CLK CNTRL
3)DATA
Chapter 3. Operation
Controls the clock used by the TSU 100 to accept the
transmit (TX) data from the DTE. Normally this is set to
I
NTERNAL
.
If the interface cable is long, causing a phase shift in the
data, the clock can be selected as
I
(Internal/Invert-
NT/INV
ed). This switches the phase of the clock which should
compensate for a long cable.
Choices - Normal or Invert
Used to control the inverting of the DTE data. This inversion can be useful when operating with a high level data
link (HDLC) protocol. Often used as a means to ensure 1s
density.
Choices - Normal or Invert
Table 3-1 shows the conditions which cause the port control signal to be deactivated.
Table 3-1. Normal Mode Operation
Signal RTS V.54
CTS F ollows Off Off Off Of f Off Off
DCD - - - Off - Off Off
DSR - Off Off Off Off Off -
- Do not care
*Until backup becomes active
61200158L1-1 Nx/DBU Option Module User Manual 3-9
Loopback
511 TestONSelf Test
Active
Network
test
Active
No DS0
Mapped
Network
Alarm*
Chapter 3. Operation
4)CTS
5)DCD
6)DSR
7)0 INHIB
Used to control characteristics of CTS.
Choices - Normal or Force On (see Table 3-1 on page 3-9).
Data Carrier Detect - Indicates to the DTE when a valid
signal is being received at the Network Interface.
Choices - Normal or Force On (see Table 3-1 on page 3-9).
Data Set Ready - This signal indicates to the DTE when
the DCE is turned On and ready for operation.
Choices - Normal or Force On (see Table 3-1 on page 3-9).
If the Nx interface detects an uninterrupted string of 0s
being transmitted toward the network. If 0s are transmitted for more than one second, then the TSU 100 forces 1s
towards the network.
Choices - On or Off
8)INBAND MODE
Inband Configuration Channel - Used to enable or disable an 8 kbps remote configuration channel (see Figure
3-6 on page 3-11).
O
When this option is set to
, the first DS0 mapped to the
N
Nx interface operates in 56K mode and the DTE clock
rate is reduced by 8 kbps. The TSU uses this 8 kbps channel to send and receive configuration data across a T1
span. As shown in Figure 3-6, this allows the PC connected to the chain-in port on TSU 600 A to monitor/con figure both TSU 600 A and B. This f eatur e is useful when
FDL connectivity is not available across the T1 span.
3-10 Nx/DBU Option Module User Manual 61200158L1-1
Chapter 3. Operation
This 8 kbps channel is only taken out of the first DS0. If
two 64K DS0s are mapped, the DTE rate would be 120
kbps instead of 128 kbps.
T-WATCH
TSU 600 A
CHAIN IN
TSU 600 B
NETWORK
NX/DBU
ROUTER PBX
PBX
NX/DBU PBX
ROUTER PBX
Figure 3-6. Inband Remote Configuration
When the inband configuration channel is enabled, the
NxDBU uses the channel to verify end-to-end con ne ctivity of the T1 network. This provides more robust monitoring of the primary network.
Enabling the inband channel is especially use ful in networks where
alarms are not passed end-to-en d. In these circuits, the inband channel
should be On for complete DBU protection.
61200158L1-1 Nx/DBU Option Module User Manual 3-11
Chapter 3. Operation
9)TX CLK SOURCE
Controls the clock used by the DTE. Normally this is set
INTERNAL
to
the clock selection is set to
will depend on an externally supplied clock to accept the
TX data.
Choices - INTERNAL or EXTERNAL
DBU CONFIG Menu Options
. If the DTE provides a clock with TX data,
EXTERNAL
. The NX 56/64
1)Backup Mode
2)Backup On
Select the
DBU CONFIG
menu option to access the menu
options discussed in this section.
Originate
When a backup condition is detected, this end of the circuit activates the backup by initiating a call to the answer
end.
Answer
This end of the circuit goes into backup when a call
comes in and a backup condition is detected.
This selects the conditions that use the Nx/DBU to initiate
backup.
Net Fail
Backup occurs on Red Alarm, Y ellow Alarm, Blue Alarm,
and LOS.
3-12 Nx/DBU Option Module User Manual 61200158L1-1
When the inband channel is enabled, it is used to periodically verify the
connection and detect backups. When enabled, this is the primary criteria
used for detecting backup conditions.
3)Pattern Verify
4)Backup Delay
Chapter 3. Operation
Net/Data Fail
Backup occurs on the same conditions as Net Fail plus
loss of data transitions on the data the Nx56/64 receives
from the network.
Enable/Disable
This selects whether or not the DBU will use its pattern
generator and receiver to authenticate backup attempts.
When the local and remote units are both Nx/DBUs, set
to ENABLE; otherwise set to DISABLE.
This selects the time allowed to elapse between the network going into alarm or no data transmissions and the
backup beginning.
Choices: 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min.
5)Restore Delay
This selects the time that elapses between the network going out of alarm or data and the backup call being taken
down. If
NEVER
is selected, the user must deactivate the
backup mode.
Choices: 1 sec, 3 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min,
never.
61200158L1-1 Nx/DBU Option Module User Manual 3-13
Chapter 3. Operation
6)Retry Delay
7)Num Retries
8)Backup Testing
This selects the time between redialing the external DCE
after failed dial attempts.
Choices: 10 sec, 30 sec, 1 min, 5 min, 10 min
This selects the number of times the DBU will attempt to
redial if unable to connect.
Choices: None, unlimited, 3 times, 10 times.
This submenu sets the options for the automatic ISDN
verification feature of the Nx/DBU. Verification of the
backup circuit does not disrupt data of the T1.
Backup Test
This selects the frequency of automatic backup circuit
verification by the DBU.
Choices: Manual, hourly, daily, weekly
Test Hour
This selects the hour of the day the backup test will occur
Choices: 0 to 23.
Test Day
If weekly backup test is selected, this option will select
which day to perform the test.
Choices: Monday through Sunday
9)WKEND Lockout
If no backup is desired from midnight Friday to midnight Sunday, set th is selection to ON; otherwise set to
OFF.
Choices: OFF, ON
A)Enable HR:
The hour that the backup will be enabled can be entered
from the numeric keyboard.
Choices: 0 to 23
3-14 Nx/DBU Option Module User Manual 61200158L1-1
B)Disable HR:
The hour that the backup will be disabled can be entered
from the numeric keypad.
Choices: 0 to 23
Trap in DBU:
If traps are enabled (See Unit Configuration), this parameter will send either a single trap upon going into a DBU
session or send repeated traps for the duration of the DBU
session.
Choices: Single; Repeated
For items A and B to function properly, verify that the time and date in
the TSU are set correctly. Consult the appropriate TSU user manual for
instructions for setting date and time .
2)FACTORY RESTORE, SUBMENU OF 3)UTIL
Chapter 3. Operation
This selection is used to restore the factory default settings for all pass-through option module parameters.
Operation
To return the unit to the opening main menu with all the
factory default settings restored, do the following:
1. Follow the standard operating procedure to access
3)UTIL
the
2. With the cursor on
menu items.
2)FACT RESTORE
, press
Enter.
5)PORT UTILITY, SUBMENU OF 3)UTIL
5)PORT UTILITY
The
play of the current software information for each port installed in the unit. This information is required when
requesting assistance from ADTRAN Technical Support
or when updates are needed.
61200158L1-1 Nx/DBU Option Module User Manual 3-15
submenu is used to access the dis-
Chapter 3. Operation
Operation
To display the screen on the TSU 100 shown in
Figure 3-7, do the following:
1. Follow the standard operating procedure to access
3)UTIL
the
2. With the cursor on
This displays the first available port.
menu items.
5)PORT UTILITY
, press
Enter.
5
Figure 3-7. Port Utility Submenu
To display the port name and the software version installed as shown in Figure 3-8, do the following:
1. Use the scroll keys to move through the available
ports, or enter the port number with the number key.
2. When the desired port name is displayed, press
Enter.
3. Press
3-16 Nx/DBU Option Module User Manual 61200158L1-1
Cancel to exit or to select another port.
Figure 3-8. Port Name and Software Version
2)RUN SELF TEST, SUBMENU OF 4)TEST
This menu item is used to execute both the internal test of
the TSU and of the Nx/DBU. The results of the self-test
are shown on the TSU 100 display. For additional information on self-test, see the Operation chapter of the appropriate TSU user manual.
To activate a self-test, do the following:
1. Follow the standard operating procedure to access
4)TEST
the
2. With the cursor on
The TSU display shows the test outcome.
menu items.
2)RUN SELF TEST
3)PORT TEST, SUBMENU OF 4)TEST
This menu item is used to activate testing of specific data
ports. It also controls the activation of loopbacks and the
initiation of data test patterns. Test results are shown on
the TSU display.
Chapter 3. Operation
, press
Enter.
The execution of Port Tests disrupts normal data flow in the port being
tested.
Operation
To display Figure 3-9 on the TSU 100, place the cursor on
3)PORT TEST
displays the available ports.
, and press
Enter or the number 3 key. This
3
Figure 3-9. Port Test Submenu
61200158L1-1 Nx/DBU Option Module User Manual 3-17
Chapter 3. Operation
1.1 Nx/DBU Menu Options
1.1 N
The
functions:
1)DTE Loopback
Initiates a loopback.
PRT/LOCAL
The Nx port activates both a local loopback (back toward
the DTE) and a port loopback when either is invoked.
REMOTE
The remote loopback causes a channelized V.54 code to
be sent to the far end. The Nx at the far end activates a
PORT/LCL
REM V.54 CONT
This loopback causes continuous V.54 code to be sent to
the far end. The Nx at the far end activates a
loopback upon detection of the V.54 code.
/DBU
interface offers the following seven test
X
loopback on detection of the V.54 code.
PORT/LCL
OFF
The loop is deactivated.
The TSU checks the remote loopback activation by detecting a proper
response from the remote end. While waiting for the response, the display
shows Looping. If successful, the display changes to Looped Up. If
unsuccessful, the display shows Failed.
3-18 Nx/DBU Option Module User Manual 61200158L1-1
2)511 PATT
Activates the generation of the 511 test pattern toward the
T1 network. Options are:
On
The pattern check circuitry is enabled and the test is
started. The test is ended by selecting Off.
Off
The pattern generation and check is disabled.
3)511RESULTS
Displays the results of the 511 test indicated in menu selection
The results are in the form of the number of errored seconds. The error count can be cleared by pressing the
key (Shift + 9). A bit error may be inserted into the data
stream by pressing the
4)DBU LOOPBACK: (OFF/ON)
2)511 PATT
Chapter 3. Operation
.
Clear
2 key.
Initiates a loopback from the DBU towards the external
DCE.
5)DBU TEST
This selection is used to force a backup to occur even if a
backup condition does not exist.
Choices: TESTS OFF, FORCED BACKUP, INTERFACE
TST
TESTS OFF
Turns off DBU tests.
FORCED BACKUP
Used to force a backup regardless of time-of-day lockouts or network conditions.
INTERFACE TST
This test causes the external DCE to dial its stored number. After the connection is established the DBU will
61200158L1-1 Nx/DBU Option Module User Manual 3-19
Chapter 3. Operation
6)DBU DATA/CNTRL
7)DBU TST RESULT
send a test pattern to verify the backup network. This
test does not disrupt data or the primary network.
Allows status of DCD and RI to be monitored while the
INTERF A CE TST
is on. If the dial up network is correctly
configured and dialed up, there should be an asterisk (*)
over DCD.
When an interface test is active, this screen will show the
total number of data blocks received and the number of
blocks with errors (see Figure 3-10).
Figure 3-10. DBU TST Result Submenu
3-20 Nx/DBU Option Module User Manual 61200158L1-1
Appendix A System Messages
ALARM MESSAGES
Network Interface (NI)
Red Alarm
NI unable to align frame with incoming signal
Yellow Alarm
Remote alarm indication (RAI) being received from the
far end
Blue Alarm
Unframed all 1s (AIS) being received at NI
Loss of Signal
No signal detected at NI
Nx/DBU Option Module
Clock Slip
Difference in frequency of the data clock at the network
and DTE
PLL Alarm
Unable to lock phase lock on the clock provided by the
network interface
61200158L1-1 Nx/DBU Option Module User Manual A-1
Appendix A. System Messages
Zeros Alarm
All 0s data being sent to the network interface
No EXT Clock
No external transmit clock at DTE (when applicable)
STATUS MESSAGES
Network Interface (NI)
Payload On
Payload loopback activated
Line On
Line loopback activated
Loopback Off
All loopbacks deactivated
Factory Restore
Factory setting restored
Power On
Unit powered on
Self-Test
Internal self-test performed
A-2 Nx/DBU Option Module User Manual 61200158L1-1
Nx/DBU Option Module
Loop-Up
Data is looped back at both the network interface and the
DTE interface of the card.
Remote Loop Up
Sending a V.54 pattern in an attempt to loop up a remote
device.
511 Pattern On
Sending a 511 pattern towards the network interface
Loop Down
Data is no longer looped back at the network interface or
the DTE interface
511 Pattern Off
No longer sending a 511 pattern towards the network
interface
Appendix A. System Messages
61200158L1-1 Nx/DBU Option Module User Manual A-3
Appendix A. System Messages
A-4 Nx/DBU Option Module User Manual 61200158L1-1
Index
Numerics
0 INHIB, Nx 56/64 config option 3-10
1.1 Nx/DBU Menu Options
511 PATT
(OFF/ON)
511RESULTS
3-19
3-19
3-18
A
ADTRAN Shi p ments Include 2-1
B
Backup Mode , DBU config 3-12
Backup On, DBU config
Backup Testin g , DBU config
3-12
3-14
C
CCITT V.35, interface used with Nx/ DB U 1-3
Customer Service
iv
D
Data Carrier Detect 3-10
3-19
3-10
3-6
1-2
3-7
3-20
3-5
3-12
3-6
2-4
3-10
3-15
3-8
3-10
3-5
Data Set Ready
DBU CONFIG Menu Options
DBU CONTROL
DBU DATA/CNTRL
DBU Features
DBU STATUS
DBU TEST
DBU TST RESULT
DBU V.35 Winchester Pin Connection
DCD, Nx 56/64 config options
Disable HR, wke n d lockout
DS0 RATE, Nx56/64 Config option
DSR, Nx 56/64 config option
DTE DATA/CLOCK
DTE STATUS
F
FACTORY RES T ORE 3-15
factory restore, op e ration
Federal Communicatio ns commission Radio Frequency Interfaerence Statement
FORCED BACKUP, DBU test
front panel indicator buttons, see TSU user man-
3-1
ual
3-15
3-19
iv
I
INBAND MODE, Nx/5 6/64 config options 3-10
Installing the Option Module, how to
INTERFACE TST, DBU test
Interfaces, used with Nx/DBU
3-19
2-1
1-3
N
Num Retries, DBU config 3-14
Nx Features
Nx V.35 Winchester Pin Connection
Nx/DBU menu tree
Nx/DBU Option M od u le , fe at ure s
Nx/DBU V.35 Option module Overview
Nx/DBU, overview
Nx56/64 and DBU, mechanical specs
Nx56/64 CONFIG
NxDBU, Functional Description
1-2
3-3
3-1
environmental specs
3-8
2-3
1-2
1-1
1-5
1-1
P
Pattern Verify, DBU config 3-13
PORT CONFIG
port config, operation
PORT Status
port status, how to access
PORT TEST
port test, operation
port utility, op eration
Power Connection, to the TSU unit
3-17
3-4
3-7
3-7
3-4
3-17
3-16
2-2
61200158L1-1 Nx/DBU Option Module User Manual Index-1
Index
Power-Up Testing and Initialization
product warranty
v
R
Restore Delay, DBU config 3-13
3-17
3-5
3-6
RTS, CTS, DCD, DSR
RTS, CTS, DTR, DSR,
RUN SELF TEST
S
Shipping damage, in case of 2-1
Specifications
3-5
1-5
1-4
DBU (DTE Interface
Nx56/64 (DCE Interface)
Status Menu, options
2-4
T
tests 1-5
TESTS OFF, DBU test
TSU 100 menu tree
TX CLK CNTRL, Nx56/64 config options
TX CLK SOURCE, Nx 56/64 config option
TXD, RXD, DCD, RI
TXD, RXD, ETC, LCK
3-19
3-2
3-6
3-5
3-9
3-12
V
V.35 Winchester connectors, interfaces used with
Nx/DBU
1-3
W
Warranty and Custom e r S e rv ice iv
Wiring, pin connection
WKEND Lockout, DBU config
2-3
3-14
Index-2 Nx/DBU Option Module User Manual 61200158L1-1
Product Support Information
Pre-Sales Inquiries and Applications Support
Please contact your local distributor, ADTRAN Applications Engineering, or
ADTRAN Sales:
Applications Engineering (800) 615-1176
Sales (800) 827-0807
Post-Sale Support
Please contact your local distributor first. If your local distributor cannot help,
please contact ADTRAN Technical Support and have the unit serial number available.
Technical Support (888) 4ADTRAN
Repair and Return
If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Customer and Product Service (CaPS) de partment to
issue an RMA number. For information regarding equipment currently in house
or possible fees associated with repair, contact CaPS directly at the following number:
CaPS Department (256) 963-8722
Identify the RMA number clearly on the package (below address), and return to
the following address:
ADTRAN, Inc.
CaPS Depart ment
6767 Old Madison Pike
Progress Center
Building #6, Suite 690
Huntsville, AL 35807
RMA # _____________
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