ADTRAN NIU3 Instruction Manual

Section 61212075L2-5D
Issue 4, January 2004
CLEI Code: NCD3EGNA_ _
61212075L2-5D 1
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CONTENTS
1. General ......................................................................... 1
2. Installation .................................................................... 3
3. Turnup .......................................................................... 6
4. Operation ...................................................................... 6
5. Testing .......................................................................... 6
6. Control Port Operation ................................................. 8
7. Specifications ............................................................. 22
8. Maintenance ............................................................... 22
9. Warranty and Customer Service ................................ 22
Appendix A. Upgrading NIU3 Software ............... A-1
FIGURES
Figure 1. NIU3 PM.......................................................... 1
Figure 2. DS3 NIU3 PM Loopback Diagram.................. 3
Figure 3. Shelf Power Connection................................... 4
Figure 4. AC/DC Transformer Connection ..................... 4
Figure 5. Power Supply/Rectifier Connection................. 4
Figure 6. Loopback Block Diagrams............................... 7
Figure 7. Cable Side Pin Assignments ............................ 8
Figure 8. Main Menu Screen ........................................... 9
Figure 9. Unit Information Screen................................. 10
Figure 10. Provisioning Screen ....................................... 10
Figure 11. Status Screen .................................................. 11
Figure 12. Loopback and Test Commands Screen,
NTWK LBK Active ....................................... 12
Figure 13. Loopback and Test Commands Screen,
Pattern Active................................................. 12
Figure 14. 15-Minute Performance History Screen ........ 13
Figure 15. 60-Minute Performance History Screen ........ 14
Figure 16. 24-Hour Performance History Screen............ 14
Figure 17. 30-Day Performance History Screen ............. 15
Figure 18. Performance Thresholds Screen..................... 16
Figure 19. Change Performance Threshold Screen ......... 16
Figure 20. Performance History Data Definitions
Screen I .......................................................... 17
Figure 21. Performance History Data Definitions
Screen II ......................................................... 17
Figure 22. Event History Screen ..................................... 18
Figure 23. Alarm Log Screen .......................................... 19
Figure 24. Set System Date/Time Screen........................ 20
Figure 25. Set Circuit ID Screen ..................................... 20
Figure 26. Terminal Modes Menu Screen....................... 21
Figure 27. Upload Flash Menu Screen............................ 21
TABLES
Table 1. LED Indication ................................................. 5
Table 2. Definition of Screen Abbreviations .................. 9
Table 3. Specifications and Compliance....................... 23
Figure 1. NIU3 PM
1. GENERAL
The DS3 Network Interface Unit with Performance
Monitoring (NIU3 PM) provides a demarcation and
loopback point for DS3 circuits. The NIU3 PM can be
deployed as a single unit, or in two different shelf
configurations with up to 12 units. The unit performs a
loopback at the customer interface toward the network
when initiated either remotely from the Test Center or
CO, or locally from the unit’s front panel LBK SEL
pushbutton, or through the RS-232 craft interface.
The NIU3 PM provides performance monitoring and
event history information through a DB-9 RS-232 craft
interface. The NIU3 PM is transparent to data
transmission during normal operation. Figure 1 shows
the NIU3 PM, P/N 1212075L2.
NTWK MON
NIU3
1212075
CUST MON
LBK SEL:
NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
LOS = RED
AIS = AMBER
C-BIT
M13
LBK
N
T
W
K
C
U
S
T
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
FUSE ALARM
DS3 Network Interface Unit NIU3 with Performance Monitoring
Installation and Maintenance Practice

2 61212075L2-5D
Revision History
Issue 4 of this document incorporates additional power
connections and information, and adds loopback
diagrams.
Features
The NIU3 PM supports the following features and
functions:
• Standalone enclosure, 12-slot shelf, or 3-slot shelf
installation.
• DS3 C-Bit and M13 framing or unframed.
• Bypass relays ensure virtually uninterrupted data
transmission during card failure, removal, or power
loss.
• BNC network and customer connections.
• Loopback in response to FEAC and inband M13
codes.
• Midsize flush mounted jacks for nonintrusive
monitoring in both network and customer direc-
tions.
• Recessed front panel pushbutton loopback control.
• Performance and status information reports via DS3
network performance report messaging (NPRM).
• 50-character scratch pad.
• DB-9 craft interface.
• Loss of signal detection and notification.
• 20, 60, 120-minute, and 24 hour test time out.
• –24 VDC or –48 VDC power for standalone or
shelf enclosures.
• 120 VAC independent power options.
• Dual power feeds in shelf configuration.
• Internal test pattern generation/detection.
• dBdsx measurement.
• Performance history displays for intervals of 15
minutes, 60 minutes, 24 hours, and 30 days.
Description
The NIU3 PM resides at the demarcation point next to
customer premises equipment and can be housed in a
standalone enclosure, a 3-unit shelf, or a 12-unit shelf.
The NIU3 PM is designed to loopback test data
originating at the Test Center or the CO and responds to
commands inserted into the data stream by a test head
or portable test set. The loopback can isolate problems
located on the customer side of the demarcation point,
thus eliminating the need for an immediate trouble-call
dispatch. The NIU3 PM is transparent to data
transmission during normal operation. If the NIU3 PM
fails, is removed from its housing, or a flash upgrade is
in progress, the housing’s bypass relays* ensure circuit
continuity to maintain data flow between the network
and the customer. A front panel LED on the NIU3 PM
provides notification of failure. See Figure 2 for a
circuit diagram of the NIU3 PM in a DS3 network
delivered via SONET.
*ADTRAN patent pending configuration.
In addition to supporting NPRM the NIU3 PM provides
performance monitoring and event history through the
front panel DB-9 RS-232 via a VT100 or similar test
device or control terminal.
Compliance
Tab le 1 shows the compliance codes for the DS3
Network Interface Unit NIU3 with Performance
Monitoring. The DS3 Network Interface Unit NIU3
with Performance Monitoring is NRTL listed to the
applicable UL standards.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Changes or modifications not expressly approved by
ADTRAN could void the user’s authority to operate this
equipment
Table 1. UL60950 Compliance Codes
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) – –
Installation Code (IC) A –

61212075L2-5D 3
.
Figure 2. DS3 NIU3 PM Loopback Diagram
2. INSTALLATION
After unpacking the unit inspect it for damage. If
damage is noted, file a claim with the carrier, then
contact ADTRAN. Refer to Warranty and Customer
Service.
This product is intended for use in a restricted access
area in a Type “B” or “E” enclosure only.
Location
The NIU3 PM installs at any convenient location
adjacent to the customer. The NIU3 PM can pass both
network and customer signals up to 900 feet. Also,
during NIU3 bypass operations, if total transmission
distance exceeds 900 feet, DS3 data may cease. The
DS3 NIU is not intended for use as a repeater. See
Figure 2 for maximum recommended transmission
distances
The NIU3 PM inserts into the host circuit board of the
standalone housing, or the backplane edge connector on
either of the shelf units. Card guides direct the unit for
correct insertion and prevent perpendicular movement.
The unit is secured with two front panel thumbscrews.
Jack Connections
The three housings each have four rear panel BNC
connectors for each NIU3 PM:
• Two for Customer Receive/Transmit:
• Two for Network Receive/Transmit
Two additional mid-size jacks on the NIU3 PM front
panel provide a nonintrusive monitoring point for the
transmit network and customer signals. The front panel
DB-9 provides a craft interface. The standalone housing
or shelf security panel must be opened to access the
monitoring jacks and the DB-9 craft interface.
CAUTION
Terminate grounds to an approved ground
location. Check metal to metal contact on all
ground connections, verify ground circuit
continuity.
Housing Ground Option
Optionally, frame ground is provided by a ground lug
on the standalone motherboard (J1). J1 and TB1 are
electrically connected. A ground wire portal on the rear
panel of the housing provides access for this ground
wire. J1 is a screw compression terminal requiring a
copper wire (14 AWG minimum) connection. Ground
posts are installed on the standalone housing, the 3-slot
shelf, and the 12-slot shelf rear panels. The ground posts
are sized for 6 AWG maximum.
Shelf Power
The NIU3 PM operates on local –24 VDC or –48 VDC.
The standalone housing, 3-slot, and 12-slot shelf
backplanes have a dual power terminal (TB1) with
terminal connections for A PWR, A RET and B PWR, B
RET wiring (18 AWG minimum) plus a common Frame
Ground (18 AWG minimum) connection (see Figure
3). The standalone housing has a power wire portal on
the rear panel for termination on the host circuit board
at TB1.
CAUTION
If supply and return terminals are installed
opposite of the described configurations, the
unit will not power-up.
The following terminal connections are made:
• Connect –48 V or –24 V supply to PWR A.
• Connect the associated return wire to RET A.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.

4 61212075L2-5D
• If redundant power is intended make similar
connections to PWR B and RET B.
A diode arrangement adds reliability by allowing both
DC supplies to load-share with one side picking up the
entire load if the other side fails.
Figure 3. Shelf Power Connection
Independent Power Supplies
Two optional independent power supply units are
available.
• AC/DC transformer, P/N 1212074L1, providing
48V at 200 mA. Output terminals are stripped and
tinned wires.
• Power supply/rectifier, P/N 1212080L1, providing
–54V @ 2 A. Output terminals are ring lugs sized
for the NIU3 input terminals.
Both plug into a standard 120 VAC outlet.
AC/DC Transformer
The AC/DC transformer is specifically intended for use
with the standalone housing, P/N 1212070L1. For the
AC/DC transformer, the (red) power wire is connected
to the RET terminal and the (black) return wire to the
PWR terminal. The green wire connects to the Frame
Ground terminal (see Figure 4).
Figure 4. AC/DC Transformer Connection
Power Supply/Rectifier
For the power supply/rectifier unit (Figure 5), the
output wire on the PS/R terminates in a modular
connector. An extension wire with a matching
connector is included. The extension wire has ring
terminals on the far end for connection to the NIU3
power terminals.
The red wire is –54 VDC and connects to the PWR A
terminal, the black wire is the return and connects to the
RET A terminal, the green wire connects to FGND.
NOTE
The PS/R is a negative output device so RED
and BLACK wires connect opposite of the
AC/DC transformer wires.
Figure 5. Power Supply/Rectifier Connection
PWR
A
A
RETURN
A SUPPLY
B SUPPLY
B
RETURN
FRAME
GROUND
TB1
RETA
PWR
B
RET B
PWR A
GRN
RED
BLK
TB1
48V
200mA
RET A
PWR B
RET B
PWR A
GRN
RED
BLK
TB1
-54V
2.0 A
RET A
PWR B
RET B

61212075L2-5D 5
Fuse
The input current is fused on each NIU3 PM card.
Options
Hardware options are not required prior to installation
and turnup. Options for test time out, inband loopback
enable, and keep alive signal are available on the
Provisioning Menu screen. Framing is automatically
detected and maintained through the unit.
LED Indication
Ten LEDs on the NIU3 PM front panel show status
during normal, problem, and test operation. Table 2
describes LED indication.
Initiating Loopback with SW1
The front panel LBK SEL pushbutton (SW1) controls
three loopback modes as described here:
• To initiate a network loopback, depress SW1 once
and hold for 5 seconds. During this time the NTWK
LBK LED flashes rapidly indicating the network
loopback is “arming”. After 5 seconds the network
loopback enables; the NTWK LBK LED turns ON
solid; and SW1 can be released.
• To initiate a customer loopback, depress SW1 twice
and hold for 5 seconds. During this time the CUST
LBK LED flashes rapidly indicating the customer
loopback is arming. After 5 seconds the customer
loopback enables; the CUST LBK LED turns on
solid; and SW1 can be released.
Table 2. LED Indication
LED Color Status Description
STATUS
Green
Red
On
On
Off
Normal operation.
Card malfunction (Bypass operation enabled).
No power.
NTWK LOS/AIS
Red
Amber
On
On
Off
DS3 signal not present at network interface.
AIS present at network interface.
DS3 signal present at network interface.
NTWK C-BIT
Green
Amber
On
Off
On
C-Bit framing present at network interface.
C-Bit framing not detected at network interface.
C-Bit framing present, TX idle.
NTWK M13
Green
Amber
On
Off
On
M13 framing present at network interface.
M13 framing not detected at network interface.
M13 framing present, TX idle.
NTWK LBK
Amber Flashing
Flashing
On
Off
Slow: Network pattern test active.
Fast: Loopback arming.
Loopback toward network enabled.
Loopback toward network disabled; network pattern test disabled.
CUST LOS/AIS
Red
Amber
On
On
Off
DS3 signal not present at customer interface.
AIS present at customer interface.
DS3 signal present at customer interface.
CUST C-BIT Green On
Off
C-Bit framing present at customer interface.
C-Bit framing not detected at customer interface
CUST M13 Green On
Off
M13 framing present at customer interface.
M13 framing not detected at customer interface.
CUST LBK
Amber Flashing
Flashing
On
Off
Slow: Customer pattern test active.
Fast: Loopback arming.
Loopback toward customer enabled.
Loopback toward customer disabled, customer pattern test disabled.
FUSE ALARM Red Off
On
Normal.
Circuit board fuse failed.
Note: All LEDs OFF indicates no power, or other system malfunction.

6 61212075L2-5D
• To initiate a dual (bidirectional) loopback, depress
SW1 three times and hold for 5 seconds. During this
time the NTWK LBK and CUST LBK LEDs flash
rapidly indicating the dual loopback is arming.
After 5 seconds the dual loopback enables, the
NTWK LBK and CUST LBK LEDs turn on solid,
and SW1 can be released.
If SW1 is released before the arming period expires the
loopback does not initiate. This feature decreases the
chance of an inadvertent loopback.
If a loopback is in effect, depressing SW1 will disable
the loopback regardless of initiation point.
Loopback priority is in response to the most recent local
or remote input. The LBK LEDs show status.
3. TURNUP
When inserted into a host with power, the STATUS LED
turns on red while the NIU3 PM performs a
self-test. If the self-test passes, the STATUS LED turns
on green and the remaining LEDs go through an on/off
sequence indicating the NIU3 PM is online. If the test
fails, the STATUS LED remains red and the host bypass
relays will maintain data flow around the NIU3 PM.
Shutdown procedures are not required.
4. OPERATION
During normal operation the NIU3 PM is transparent to
the network. In the event of circuit trouble, test
equipment at the central office control terminal can
monitor the loop. When a loopback is initiated, the
transmit/receive paths can be tested to the customer
interface.
Monitoring
Front panel mid-size monitoring jacks provide
nonintrusive monitoring access through a high-
impedance bridging circuit. The monitor level is
nominally 21.5 dB below the signal power. The signal
to the network is monitored via the NTWK MON jack;
the signal to the customer is monitored via the CUST
MON jack.
Loss of Signal
In the event of a loss of signal, the NIU3 PM provides
both a “keep alive” signal and LED notification.
• If there is no signal from the network, the NTWK
LOS/AIS LED turns on red, and the NIU3 PM will
transmit an unframed all ones signal toward the
customer.
• If there is no signal from the customer, the CUST
LOS/AIS LED turns on red, and the NIU3 PM will
transmit the signal selected by Option 3 on the
Provisioning menu. The three selections that can be
sent to the network upon customer LOS are these:
– Framed Idle
–AIS
– No Signal
Loss of Framing
If either NTWK or CUST C-Bit and M13 LEDs are both
off, the associated network or customer signal is
unframed.
5. TESTING
The NIU3 is compatible with standard test equipment.
Digital testing is accomplished with the T-BERD 310 or
equivalent.
FEAC Loopback
The test device at the CO inserts a DS3 NIU FEAC (Far
End Alarm and Control) loop up code (C-bit parity
framing only) toward the NIU3. The NIU3 then
performs a network loopback. The loopback is
terminated by a DS3 NIU FEAC loop down code.
Loopback and Bypass Configurations
There are four basic NIU3 normal/loopback configu-
rations:
INormalOperation
II Network Loopback
III Customer Loopback
IV Dual Loopback
Each configuration is shown in a block diagram in
Figure 6. Each block diagram represents the NIU3
circuit card in normal operation or a particular
loopback.
Each block diagram illustrates the relative position of
the detecting circuits to one another and the LED
indication associated with each, plus the location of the
mid-size monitoring jacks. See Table 1 for LED
descriptions.
Bypass Operation
The bypass relays are represented in block diagram I
only. The bypass relays are independent of the NIU3
circuit card and loopback configurations. The relays
switch to the bypass position during one of the
following conditions:
• The NIU3 circuit card fails or loses power
• The NIU3 circuit card is removed
• Flash upgrade is in progress

61212075L2-5D 7
Figure 6. Loopback Block Diagrams
AIS
Detector
RCV Framing
Detector RCV LOS
Detector
Regen.
Ntwk Out
Ntwk In
Cust C-Bit/M13
Indication Customer AIS
Indication Customer LOS
Indication
Customer
Monitor
Network
Monitor
RCV Framing
Detector
AIS
Detector
RCV LOS
Detector
Ntwk LOS
Indication Ntwk AIS
Indication Ntwk C-Bit/M13
Indication
Regen.
Cust In
Cust Out
Normal Operation Showing Bypass and Relays
AIS
Detector
RCV Framing
Detector RCV LOS
Detector
Regen.
Ntwk Out
Ntwk In
Cust C-Bit/M13
Indication Customer AIS
Indication Customer LOS
Indication
Customer
Monitor
Network
Monitor
RCV Framing
Detector
AIS
Detector
RCV LOS
Detector
Ntwk LOS
Indication Ntwk AIS
Indication Ntwk C-Bit/M13
Indication
Regen.
Cust Out
Cust In
Network Loopback
Regen.
Ntwk Out
Ntwk In
Customer
Monitor
Network
Monitor
RCV Framing
Detector
AIS
Detector
RCV LOS
Detector
Ntwk LOS
Indication Ntwk AIS
Indication Ntwk C-Bit/M13
Indication
Cust Out
Customer Loopback
Idle Code
Generator
RCV Framing
Detector
Cust C-Bit/M13
Indication
AIS
Detector
Customer AIS
Indication
RCV LOS
Detector
Customer LOS
Indication
Cust In
Regen.
Regen.
Ntwk Out
Ntwk In
Customer
Monitor
Network
Monitor
RCV Framing
Detector
AIS
Detector
RCV LOS
Detector
Ntwk LOS
Indication Ntwk AIS
Indication Ntwk C-Bit/M13
Indication
Cust O
ut
Dual Loopback
AIS
Detector
Customer AIS
Indication
RCV LOS
Detector
Customer LOS
Indication
Cust In
Regen.
RCV Framing
Detector
Cust C-Bit/M13
Indication
I
II
III
IV
Network to customer bypass
Customer to network bypass
Quiet termination resistor
Bypass
Relays Bypass
Relays

8 61212075L2-5D
Inband Test Codes
Remote testing can also be conducted using inband test
codes. The CO test device inserts the arming code:
1011100 for 5 seconds. After 5 seconds the test device
has 20 seconds to transmit one of the following test
identifier codes:
• 1101 0011 1101 0011 D3D3h Loopback
• 0010 1110 0010 0011 2E23h 2^23-1
• 0010 1110 0010 0000 2E20h QRSS
• 1101 0111 0100 0001 D741h Blue
• 1101 0111 0100 0010 D742h Idle
• 1101 0111 0100 0011 D743h User Defined
The first code initiates a Loopback at the customer
interface in the network direction. The remaining codes
send the associated test pattern in both network and
customer directions simultaneously. To deactivate a
loopback or test pattern, send 1110110, and the NIU
will respond immediately.
NIU test patterns are framed according to framing of the
incoming signal at the NIU NTWK interface at the
moment an NIU inband test pattern is activated. The
User Defined test pattern is set to the last test pattern
programmed on the NIU Loopbacks and Test
Commands screen.
The loopback command can also be enabled or
terminated with the front panel LBK SEL pushbutton or
via craft interface. The NIU3 features additional testing
available in the loopback and test commands menus.
Manual loopback and BERT tests are available as
shown in the Loopback and Test commands menu
screens.
Time Out
After a loopback or pattern test is initiated, unless
terminated manually, a time out returns the loop to
normal operation after 20 minutes, 60 minutes, 120
minutes, or 24 hours. The timer is reset at any point by
sending the FEAC loop up code. The test time out can
be disabled through the craft interface.
NOTE
When conducting a terminal session always
select VT100 mode in the Settings menu prior
to making the craft connection.
6. CONTROL PORT OPERATION
The NIU3 PM front panel DB-9 provides an RS-232
interface for connection to a controlling terminal. The
DB-9 pinout is shown in Figure 7. A terminal session is
initiated upon insertion of a DB-9 jack into the RS-232.
The terminal interface operates at data rates from 1.2
kbps to 19.2 kbps. The asynchronous data format is
fixed at 8 data bits, no parity, and 1 stop bit. The
supported terminal type is VT100 or compatible.
Figure 7. Cable Side Pin Assignments
Terminal Session
The NIU3 PM synchronizes upon insertion in a
powered-up shelf or housing. After synchronization,
terminal sessions provide access to screen menus for
provisioning, monitoring, testing, or obtaining
performance or event history. Terminal session screen
access is available at any time during operation. The
screens shown in this practice identify the main menu
screens; subordinate screens are not depicted. Abbrevi-
ations used in screen diagrams are explained in Table 3.
NOTE
If using a personal computer with terminal
emulation capability, disable all power saving
programs. Otherwise, communication between
the PC and the NIU3 PM may be disrupted,
resulting in misplaced characters, or screen
time outs.
NOTE
Not all option screens are shown in this
document. Many screen options selected will
advance to additional screens with additional
options. Following screen instructions will
successfully navigate the user through the
complete option menu series.
6
7
8
9
1
2
3
4
5
TXD (Transmit Data
)
RXD (Receive Data
)
SGN (Signal Groun
d)

61212075L2-5D 9
Establishing a Terminal Session
To establish a terminal session, connect a terminal
device to the front panel DB-9, then enter the password
ADTRAN. The Main Menu appears as shown in Figure
8.
The Main Menu provides access to detailed performance
and configuration information. The following screens
are available from the Main Menu:
1. NIU3 Unit Information
2. Provisioning
3. Status
4. Loopbacks and Test
5. Performance History
6. Event History
7. Alarm Log
8. Set Circuit ID and Scratch Pad
9. Set Date and Time
10. Terminal Modes
11. Software Download
Figure 8. Main Menu Screen
Table 3. Definition of Screen Abbreviations
UNFR Unframed: An unframed DS3 signal.
M13 DS3 M13 Multiplex: A framed DS3 signal with an application identification channel (AIC) signal of random 1s
and 0s. The C-Bit channel is employed to denote the presence or absence of stuffed bits. Also known as M23.
C-Bit DS3 C-Bit Parity: A framed DS3 signal with an application identification channel signal set to 1. The
C-Bit channel is available for carrying parity information, FEBE bits, far-end alarm and control signals, etc.
2ˆ23-1 Pseudorandom Pattern: With a maximum of 22 sequential 0s and 23 sequential 1s that is used to simulate live
T3 data.
BPV Bipolar Violation: The occurrence of a pulse of the same polarity as the previous pulse. BPVs that are part of
the zero substitution code are excluded.
EXZ Excessive Zeros: The occurrence of more than two consecutive zeros.
FEBE
Far-End Block Error: The occurrence of a “not all 1s” pattern in the three FEBE bits and is a result of either a
far-end M-bit error, a far-end F-bit error, or a far-end CP-bit error. FEBEs only apply to the C-Bit parity
application.
SEF
Severely Errored Frame: An SEF defect occurs when three or more F-bit errors in 16 consecutive F-bits are
detected. An SEF defect is terminated when the signal is in-frame and there are less than three F-bit errors in16
consecutive F-bits.
QRSS Quasi Random Signal Source: A modified 2ˆ20-1 pseudorandom test signal that has artificial constraints to
limit the maximum number of zeros in the bit stream.
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Adtran NIU3 Main Menu
1. NIU3 Unit Information
2. Provisioning
3. Status
4. Loopbacks and Test
5. Performance History
6. Event History
7. Alarm Log
8. Set Circuit ID and Scratch Pad
9. Set Date and Time
10. Terminal Modes
11. Software Download
Selection:

10 61212075L2-5D
The NIU3 Unit Information screen, Figure 9, displays
part number, serial number, CLEI code, firmware
revision, and checksums for the NIU3 PM.
The Provisioning screen, Figure 10, shows screen
option selections. Option 2, Inband M13 Loopback
Enable/Disabled, is used to enable or disable detection
of inband loopback codes. Option 3, KAS for Customer
LOS, selects which keep alive signal is sent to the
network when the NIU3 customer receiver detects LOS,
such as Idle, AIS, or No Signal.
The Reset to Factory Default selection, D, resets options
1, 2 and 3 as shown in Figure 10.
The Bert/Loopback Timeout screen options can be
Disabled, or selected for 20 min, 60 min, 120 min, or 24
hrs. After the selected test timeout expires, the loopback
or pattern test releases. Pressing the LBK SEL button
during a loopback also releases the loopback and returns
the unit to normal operation.
Figure 9. Unit Information Screen
Figure 10. Provisioning Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
#####################################
# ## ## Support Hours: 7am - 7pm CST
# ## ###### ## ###### ## ###### Emergency: 7days X 24hrs
# ## ## ## ## ## ## # ## ## ## Phone: [phone]
########## ## ## ## ###### ###### ## ## Fax: [phone]
# # ####### ##### ### #### ## Internet: www.adtran.com
##############################################
901 Explorer Boulevard, Huntsville, AL 35806-2807
ADTRAN NIU3
Part #: 1212075L2
S/N: 123456789
CLEI: NCD3EGNA_ _
Rev: A04
App CS: 0195
Boot CS: 8458
Flash CS: 85ED
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Provisioning
1. Bert/Loopback Timeout = 120 min.
2. Inband M13 Loopback = Enabled
3. Customer LOS = AIS
D. Reset to Factory Defaults
Selection:

61212075L2-5D 11
The Status screen, Figure 11, provides quick access to
the network and customer status information. The
indication of “ones” is only shown for the transmit
status.
Figure 11. Status Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Status Screen
NETWORK T3 RECEIVER DATA CUSTOMER
-----------------------------------------------------
LIVE <- DS3 SIGNAL -> LOS
______ C-BIT <- FRAMING -> UNFR
| NIU3 | + 3.6 <- dBdsx LEVEL -> - 2.9
------>| |------>
| |
NET | | CUST -----------------------------------------------------
| | 15M/ 24H / 30D 15M/ 24H / 30D
<-AIS--| |<-LOS-- 000 00000 0000000 <- ES-L -> 000 00000 0000000
|______| 000 00000 0000000 <- SES-L -> 000 00000 0000000
000 00000 0000000 <- LOSS-L -> 000 00000 0000000
000 00000 0000000 <- ES-P -> 000 00000 0000000
000 00000 0000000 <- SES-P -> 000 00000 0000000
000 00000 0000000 <- UAS-P -> 000 00000 0000000
1. Clear PM Data
Selection:

12 61212075L2-5D
The Loopback and Test Commands Screen, Figure 12
and Figure 13, allows tests to be initiated or terminated
while graphically displaying the test status of the NIU3
PM. The test patterns can be initiated in both directions
simultaneously, but a test pattern and a loopback cannot
both be active. A loopback request is confirmed by
typing “Y” on the next screen. Figure 12 shows an
active network loopback.
Test Pattern Pattern Generator
Figure 13 shows an active test pattern to the network.
The error count display for the test pattern will count to
and hold at 65535 errors. A loss of pattern sync will
cause the count to increment to 65535. Reset the error
count by selecting “Reset Pattern Errors”. If a test
pattern is active to the network, then a pattern of
unframed all “ones” is transmitted toward the customer.
Figure 12. Loopback and Test Commands Screen, NTWK LBK Active
Figure 13. Loopback and Test Commands Screen, Pattern Active
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Loopback and Test Commands
______
| NIU3 | 1. Deactivate Network Loopback
---------->| ---- |-----------> 2. Loopback Customer
| | | 3. Dual Loopback
| | |
| | | 4. Send Pattern to Network
NET | | | CUST 5. Deactivate Pattern to Network
| | |
<----------|<--- |<---------- 6. Send Pattern to Customer
|______| 7. Deactivate Pattern to Customer
8. Pattern Type 2^23-1
9. Framing for Pattern C-BIT
Pattern 10. Timing Source for Pattern LOCAL
Errors
------- 11. Insert Bit Error
Network N/A 12. Reset Pattern Errors
Customer N/A
Selection:
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Loopback and Test Commands
______
Errs: 00000 | NIU3 | 1. Loopback Network
----------->| |----------> 2. Loopback Customer
| | 3. Dual Loopback
| |
NET | | CUST 4. Send Pattern to Network
| | 5. Deactivate Pattern to Network
| |
<--2^23-1--| |<---------- 6. Send Pattern to Customer
|______| 7. Deactivate Pattern to Customer
8. Pattern Type 2^23-1
9. Framing for Pattern C-BIT
10. Timing Source for Pattern LOCAL
Pattern
Errors 11. Insert Bit Error
------- 12. Reset Pattern Errors
Network 00000
Customer N/A
Selection:

61212075L2-5D 13
The pattern that is sent can be selected using the Pattern
Type option. Patterns available include 2^23-1, QRSS,
Blue, Idle, and User Defined.
The following sequence is the factory default for the
user defined pattern:
0000 0000 1111 1111
The timing source for the pattern is set to Network to
preserve network timing. If a network signal is not
present or if a loopback removes the timing reference
from the network signal, local timing can be used for
pattern testing.
If a test pattern is active to the customer, then framed
DS3 idle is transmitted toward the network. The
Framing for Pattern option selects the framing for the
test patterns for both the network and the customer, and
can be set to C-Bit, M13, or UNFR (unframed). The
Timing Source for Pattern option selects whether the
received network DS3 signal (NTWK) or the NIU3 PM
local reference clock (LOCAL) will be used as the clock
for the transmitted test pattern.
The Performance History screens (Figure 14 through
Figure 17) exhibit a date and time stamp in the upper
righthand corner for the data capture displayed.
Figure 14 is an example of the 15-Minute Performance
History screen. The date and time shown in each row of
data registers indicate the end time of that particular
interval. At each 15-minute interval, all performance
information is backed up to nonvolatile memory, and
the current 15-minute data registers are transferred to
the 15-minute historical data registers. All 15-minute
performance data registers are available for the past 24
hours. The 60-minute performance data registers (see
Figure 15) are available for the current hour and the
past 60 hours. The 24-hour performance data registers
(see Figure 16) are available for the current day and the
past 30 days. The 30-day performance data registers
(see Figure 17) are available for the current 30 days and
three previous 30-day periods. All performance data
registers can be reset by choosing 2. Reset Data. This
reset must be confirmed by choosing Yon the warning
screen (not shown).
The MSEC (Measured Seconds) parameter is a count of
how many seconds have elapsed during the current
interval displayed on the Performance History screen.
The count will reset to zero when the performance
history data is reset, or if the date or time is changed.
The count will automatically restart when the current
interval being observed ends and a new current interval
begins.
Figure 14. 15-Minute Performance History Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Menu 15 Minute Network Near End Performance Data
1. Definitions Page 3 of 9 ES-L SES-L LOSS-L CV-L
2. Reset Data MSEC 000 000 000 000 00000
3. 15 Min Data 01/01 01:45 000 000 000 00000
4. 60 Min Data 01/01 01:30 000 000 000 00000
5. 24 Hr Data 01/01 01:15 000 000 000 00000
6. 30 Days Data 01/01 01:00 000 000 000 00000
7. Line Data 01/01 01:00 000 000 000 00000
8. Path Data 1 01/01 00:45 000 000 000 00000
9. Path Data 2 01/01 00:30 000 000 000 00000
10. Network Near End 01/01 00:15 000 000 000 00000
11. Customer Near End 12/31 23:45 000 000 000 00000
12. Network Far End 12/31 23:30 000 000 000 00000
13. Customer Far End 12/31 23:15 000 000 000 00000
14. Change Thresholds 12/31 23:00 000 000 000 00000
___
'B'Backward 10--->| |--->13
'F'Forward |N C|
12<---|___|<---11
Selection:

14 61212075L2-5D
Figure 15. 60-Minute Performance History Screen
Figure 16. 24-Hour Performance History Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Menu 60 Minute Network Near End Performance Data
1. Definitions Page 2 of 5 ES-P SES-P UAS-P CV-P
2. Reset Data MESC 00000 0000 0000 0000 00000
3. 15 Min Data 01/01 02:00 0000 0000 0000 00000
4. 60 Min Data 01/01 01:00 0000 0000 0000 00000
5. 24 Hr Data 01/01 00:00 0000 0000 0000 00000
6. 30 Day Data 12/31 23:00 0000 0000 0000 00000
7. Line Data 12/31 22:00 0000 0000 0000 00000
8. Path Data 1 12/31 21:00 0000 0000 0000 00000
9. Path Data 2 12/31 20:00 0000 0000 0000 00000
10. Network Near End 12/31 19:00 0000 0000 0000 00000
11. Customer Near End 12/31 18:00 0000 0000 0000 00000
12. Network Far End 12/31 17:00 0000 0000 0000 00000
13. Customer Far End 12/31 16:00 0000 0000 0000 00000
14. Change Thresholds 12/31 15:00 0000 0000 0000 00000
___
'B'Backward 10--->| |--->13
'F'Forward |N C|
12<---|___|<---11
Selection:
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Menu 24 Hour Network Far End Performance Data
1. Definitions Page 1 of 1 ES-P SES-P UAS-P CV-P
2. Reset Data MSEC 00000 00000 00000 00000 0000000
3. 15 Min Data 01/01 00000 00000 00000 0000000
4. 60 Min Data 12/31 00000 00000 00000 0000000
5. 24 Hr Data 12/30 00000 00000 00000 0000000
6. 30 Day Data 12/29 00000 00000 00000 0000000
7. ---------- 12/28 00000 00000 00000 0000000
8. Path Data 1 12/27 00000 00000 00000 0000000
9. Path Data 2 12/26 00000 00000 00000 0000000
10. Network Near End 12/25 00000 00000 00000 0000000
11. Customer Near End 12/24 00000 00000 00000 0000000
12. Network Far End 12/23 00000 00000 00000 0000000
13. Customer Far End 12/22 00000 00000 00000 0000000
14. Change Thresholds 12/21 00000 00000 00000 0000000
___
10--->| |--->13
|N C|
12<---|___|<---11
Selection:

61212075L2-5D 15
Figure 17. 30-Day Performance History Screen
CIRCUIT ID: 11/19/03 00:01:22
Press ESC to return to previous menu
Menu 30 Day Network Near End Performance Data
1. Definitions PAGE 1 of 1 ES-L SES-L LOSS-L CV-L
2. Reset Data MSECs 0000082 0000098 0000097 0000097 0000007
3. 15 Min Data Ending: 03/31 0000293 0000293 0000293 0000000
4. 60 Min Data Ending: 03/01 0000313 0000313 0000313 0000000
5. 24 Hr Data Ending: 01/31 0002285 0000929 0000376 0002704
6. 30 Day Data
7. Line Data
8. Path Data 1
9. Path Data 2
10. Network Near End
11. Customer Near End
12. Network Far End
13. Customer Far End
14. Change Thresholds
____
-10->| |--->13
|N C|
12<---|____|<-11-
Selection:

16 61212075L2-5D
Each 15-minute and 24-hour performance parameter
has a threshold as shown in the Performance
Thresholds screen, Figure 18. Thresholds can be set in
Change Performance Threshold, Figure 19, which
automatically displays upon entering the threshold
number selection in Figure 18. When a threshold is
crossed, an event is logged in the Event Log History.
The Line Related thresholds set the threshold for both
the network and customer line parameters for the near
end only. The Path Related thresholds set the thresholds
for the near and far path parameters for both network
and customer. All thresholds can be disabled or reset to
factory default.
Figure 18. Performance Thresholds Screen
Figure 19. Change Performance Threshold Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Performance Thresholds
15 Min Line Related 24 Hr
--------------------------------------------------------------------
1. CV-L = 387 9. CV-L = 00387
2. ES-L = 025 10. ES- L = 00025
3. SES-L = 004 11. SES-L = 00004
4. LOSS-L = 004 12. LOSS-L = 00004
15 Min Path Related 24 Hr
--------------------------------------------------------------------
5. CV-P = 382 13. CV-P = 00382
6. ES-P = 025 14. ES-P = 00025
7. SES-P = Disabled 15. SES-P = 00004
8. UAS-P = 010 16. UAS-P = 00010
17. Restore Default Thresholds 18. Disable All Thresholds
Selection:
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
CV-L 15 Min Threshold = 387
D. Disable Threshold
Enter Value:

61212075L2-5D 17
The Performance Data Definitions screens, Figure 20
and Figure 21, describe each line, path, and far-end
performance parameter and explain using reverse video
to indicate incomplete or invalid data registers.
Figure 20. Performance History Data Definitions Screen I
Figure 21. Performance History Data Definitions Screen II
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Performance Data Definitions
Line Related (Near End only):
ES-L Errored Seconds (BPV + EXZ) >= 1 or LOS >= 1
SES-L Severely Errored Seconds (BPV + EXZ) >= 45 or LOS >= 1
LOSS-L Loss of Signal Seconds LOS >= 1
CV-L Code Violation Count (BPV + EXZ) count
Path Related (Near End):
ES-P Errored Seconds Parity errors >=1 or
SEF >= 1 or AIS >= 1
SES-P Severely Errored Seconds Parity errors >= 45 or
SEF >= 1 or AIS >= 1
UAS-P Unavailable Seconds >10 cont. SES-Ps
CV-P Code Violation Count Parity Error Count
NOTE: Reverse video indicates invalid data due to a terminal restart (or power
cycle), a data register reset, or a system date or time change.
'N' - Next Page
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Performance Data Definitions
Path Related (Near End continued):
SAS-P SEF/AIS Seconds AIS >= 1 or SEF >= 1
SEFS-P Severely Errored Frame Seconds SEF >= 1
AISS-P AIS Seconds AIS >= 1
Path Related (Far End):
ES-P Errored Seconds FEBE >=1 or SEF/AIS(far) >= 1
SES-P Severely Errored Seconds FEBE >= 45 or SEF/AIS(far) >= 1
UAS-P Unavailable Seconds >10 cont. SES-Ps
CV-P Code Violation Count FEBE Count
NOTE: Under an UAS-P condition, ES-P, SES-P, CV-P, SAS-P, SEFS-P and
AISS-P counts are inhibited. Under a SES-L or SES-P condition, the
respective CV-L or CV-P count is inhibited.
NOTE: Parity errors are P-bit parity errors for M13 framing and CP-bit parity
errors for C-bit framing.

18 61212075L2-5D
The Event History screen, Figure 22, shows the last 200
events logged to the event log. Events are time stamped
and shown in chronological order. The newest events
are seen by choosing Eto go to the end of the event log.
Oldest events are seen by choosing Hto go to the
beginning (Home) of the event log. Each event source is
shown and can be either NI (network interface), CI
(customer interface), or NIU3 (local to the NIU3 PM).
To clear the event log, choose R for Reset. This reset
must be confirmed by typing Yon the next screen.
Possible events include the following:
• Status changes
• Provisioning commands
• Loopback commands (remote and manual)
• Power events
• Event log reset
• Performance data reset
• PM threshold crossings
• DS3 framing mismatch detect
• FEAC messages
Figure 22. Event History Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Event History
Num Description of Event Date Time Source
------------------------------------------------------------------------
1. NIU3 Powered Up 01/01/01 00:20:42 NIU3
2. DS3 Out-Of-Frame FEAC Alarm 01/01/01 00:43:13 CI
3.
4.
5.
6.
7.
8.
9.
10.
Page Number: 1/ 1 Number of Events: 2
------------------------------------------------------------------------
'P' - Previous Page 'H' - Home 'R' - Reset Events
'N' - Next Page 'E' - End
Selection:

61212075L2-5D 19
The Alarm Log Screen, Figure 23, shows the last 200
alarms logged to the alarm log. Alarms are time
stamped and shown in chronological order. The newest
alarms are seen by choosing Eto go to the end of the
alarm log. Oldest alarms are seen by choosing Hto go to
the beginning of the alarm log. Each alarm source is
shown and can be either NI (network interface), CI
(customer interface), or NIU3 (local to the NIU3 PM).
To clear the alarm log, choose R. This reset must be
confirmed by typing Yon the next screen. Possible
alarms include the following:
• Power events
• Alarm log reset
• FEAC alarms
•AIS
•LOS
• OOF
•RAI
Figure 23. Alarm Log Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Alarm Log
Num Description of Alarm Date Time Source
------------------------------------------------------------------------
1. NIU3 Powered Up 01/01/01 00:20:42 NIU3
2. DS3 Out-Of-Frame FEAC Alarm 01/01/01 00:43:13 CI
3.
4.
5.
6.
7.
8.
9.
10.
Page Number: 1/ 1 Number of Alarms: 2
------------------------------------------------------------------------
'P' - Previous Page 'H' - Home 'R' - Reset Alarms
'N' - Next Page 'E' - End
Selection:

20 61212075L2-5D
The Set System Date and Time screen, Figure 24, is
used to set the NIU3 PM date and time. Once date and
time are configured, the date and time performance
registers update accordingly.
The Set Circuit ID screen, Figure 25, sets the circuit
identification (20 characters maximum.) The screen
includes a 50-character Scratchpad.
Figure 24. Set System Date/Time Screen
Figure 25. Set Circuit ID Screen
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Set System Date and Time
New Date = / / (MM/DD/YY)
<Press TAB to cycle between Time and Date>
New Time = : : (HH:MM:SS)
CIRCUIT ID: xxxxxxx 01/01/01 13:04:03
Press ESC to return to previous menu
Set Circuit ID and Scratchpad
1. Set Circuit ID
2. Set Scratchpad
Current Scratchpad:
Selection: