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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
NIU3 PM.......................................................... 1
DS3 NIU3 PM Loopback Diagram.................. 3
Shelf Power Connection................................... 4
AC/DC Transformer Connection ..................... 4
Loopback Block Diagrams............................... 7
Cable Side Pin Assignments ............................ 8
Main Menu Screen ........................................... 9
Unit Information Screen................................. 10
Figure 10. Provisioning Screen ....................................... 10
Figure 11. Status Screen .................................................. 11
NTWK LBK Active ....................................... 12
Pattern Active................................................. 12
Screen I .......................................................... 17
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
LED Indication ................................................. 5
Specifications and Compliance....................... 23
61212075L2-5D
Installation and Maintenance Practice
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CLEI Code: NCD3EGNA_ _
IU3
1212075
STATUS
LOS = RED
AIS =AMBER
C-BIT = GR
IDLE =AMBER
M13 = GR
IDLE =AMBER
LBK
LOS = RED
AIS =AMBER
C-BIT
M13
LBK
FUSE ALARM
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
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.
the NIU3 PM, P/N 1212075L2.
Section 61212075L2-5D
Issue 4, January 2004
T
W
K
C
U
S
T
LBK SEL:
TWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
TWK MO
CUST MO
LBK SEL
Figure 1
shows
1

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Summary of Contents for ADTRAN NIU3

  • Page 1: Table Of Contents

    Figure 19. Change Performance Threshold Screen ..16 Monitoring (NIU3 PM) provides a demarcation and Figure 20. Performance History Data Definitions loopback point for DS3 circuits. The NIU3 PM can be Screen I ............17 deployed as a single unit, or in two different shelf Figure 21.
  • Page 2 • DS3 C-Bit and M13 framing or unframed. and the customer. A front panel LED on the NIU3 PM • Bypass relays ensure virtually uninterrupted data provides notification of failure. See...
  • Page 3: Installation

    DS3 NIU is not intended for use as a repeater. See Shelf Power Figure 2 for maximum recommended transmission The NIU3 PM operates on local –24 VDC or –48 VDC. distances The standalone housing, 3-slot, and 12-slot shelf The NIU3 PM inserts into the host circuit board of the...
  • Page 4: Figure 3. Shelf Power Connection

    An extension wire with a matching Independent Power Supplies connector is included. The extension wire has ring Two optional independent power supply units are terminals on the far end for connection to the NIU3 available. power terminals. • AC/DC transformer, P/N 1212074L1, providing The red wire is –54 VDC and connects to the PWR A...
  • Page 5: Table 1. Led Indication

    Fuse Initiating Loopback with SW1 The input current is fused on each NIU3 PM card. The front panel pushbutton (SW1) controls LBK SEL three loopback modes as described here: Options • To initiate a network loopback, depress SW1 once Hardware options are not required prior to installation and hold for 5 seconds.
  • Page 6: Turnup

    Loss of Signal The bypass relays are represented in block diagram I In the event of a loss of signal, the NIU3 PM provides only. The bypass relays are independent of the NIU3 both a “keep alive” signal and LED notification.
  • Page 7: Figure 6. Loopback Block Diagrams

    Network to customer bypass Regen. RCV Framing RCV LOS Cust Out Ntwk In Detector Detector Detector Ntwk AIS Ntwk LOS Ntwk C-Bit/M13 Indication Indication Indication Bypass Bypass Relays Relays Customer Monitor Customer to network bypass Regen. Ntwk Out RCV Framing RCV LOS Cust In Detector...
  • Page 8: Control Port Operation

    Inband Test Codes 6. CONTROL PORT OPERATION Remote testing can also be conducted using inband test The NIU3 PM front panel DB-9 provides an RS-232 codes. The CO test device inserts the arming code: interface for connection to a controlling terminal. The 1011100 for 5 seconds.
  • Page 9: Figure 8. Main Menu Screen

    The following screens 8. Set Circuit ID and Scratch Pad are available from the Main Menu 9. Set Date and Time 10. Terminal Modes 1. NIU3 Unit Information Software Download CIRCUIT ID: xxxxxxx 01/01/01 13:04:03 Adtran NIU3 Main Menu...
  • Page 10: Figure 9. Unit Information Screen

    KAS for Customer , selects which keep alive signal is sent to the the unit to normal operation. network when the NIU3 customer receiver detects LOS, such as Idle, AIS, or No Signal. CIRCUIT ID: xxxxxxx 01/01/01...
  • Page 11: Figure 11. Status Screen

    T3 RECEIVER DATA CUSTOMER ----------------------------------------------------- LIVE <- DS3 SIGNAL -> ______ C-BIT <- FRAMING -> UNFR | NIU3 | + 3.6 <- dBdsx LEVEL -> - 2.9 ------>| |------> CUST ----------------------------------------------------- 15M/ 24H / 15M/ 24H / <-AIS--| |<-LOS-- 000 00000 0000000 <-...
  • Page 12: Figure 12. Loopback And Test Commands Screen

    13, allows tests to be initiated or terminated Figure 13 shows an active test pattern to the network. while graphically displaying the test status of the NIU3 The error count display for the test pattern will count to PM. The test patterns can be initiated in both directions and hold at 65535 errors.
  • Page 13: Figure 14. 15-Minute Performance History Screen

    Timing Source for Pattern option selects whether the interval displayed on the Performance History screen. received network DS3 signal (NTWK) or the NIU3 PM The count will reset to zero when the performance local reference clock (LOCAL) will be used as the clock history data is reset, or if the date or time is changed.
  • Page 14: Figure 15. 60-Minute 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...
  • Page 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 Definitions PAGE 1 of 1 ES-L SES-L LOSS-L CV-L Reset Data MSECs 0000082 0000098 0000097 0000097 0000007 15 Min Data Ending: 03/31 0000293 0000293 0000293 0000000 60 Min Data Ending: 03/01...
  • Page 16: Figure 18. Performance Thresholds Screen

    Each 15-minute and 24-hour performance parameter The Line Related thresholds set the threshold for both has a threshold as shown in the the network and customer line parameters for the near Performance screen, Figure 18. Thresholds can be set in end only.
  • Page 17: Figure 20. Performance History Data Definitions Screen I

    screens, Figure 20 Performance Data Definitions Figure 21, describe each line, path, and far-end performance parameter and explain using reverse video to indicate incomplete or invalid data registers. 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...
  • Page 18: Figure 22. Event History Screen

    (Home) of the event log. Each event source is • Loopback commands (remote and manual) shown and can be either (network interface), (customer interface), or (local to the NIU3 PM). NIU3 • Power events • Event log reset • Performance data reset •...
  • Page 19: Figure 23. Alarm Log Screen

    • Alarm log reset the beginning of the alarm log. Each alarm source is • FEAC alarms shown and can be either (network interface), (customer interface), or (local to the NIU3 PM). NIU3 • AIS • LOS • OOF • RAI...
  • Page 20: Figure 24. Set System Date/Time Screen

    25, sets the circuit Set System Date and Time The Set Circuit ID used to set the NIU3 PM date and time. Once date and identification (20 characters maximum.) The screen time are configured, the date and time performance includes a 50-character Scratchpad.
  • Page 21: Figure 26. Terminal Modes Menu Screen

    Software Download captured or logged to a print file. screen is shown in Figure Software Download Appendix A provides instructions for upgrading NIU3 software. CIRCUIT ID: xxxxxxx "CTRL + R" TO UPDATE 01/01/01 02:04:03...
  • Page 22: Specifications

    Warranty information 8. MAINTENANCE can be found at: The NIU3 PM does not require maintenance for normal www.adtran.com/warranty. operation. ADTRAN does not recommend field repairs. For repair services refer to Warranty and Customer U.S.
  • Page 23: Table 3. Specifications And Compliance

    Telecommunications Code (TC) Installation Code (IC) Mechanical Dimensions 1-7/8-in. W x 5-5/8-in. H x 5-1/2-in. D, T400 density Weight NIU3 PM circuit board: 8 oz. Standalone housing: 2 lb. 3-slot shelf: 4 lb. 12-slot shelf: 12 lb. Environmental Operating Temperature –40°C to 70°C (–40°F to 158°F)
  • Page 24 This page is intentionally blank. 61212075L2-5D...
  • Page 25: Appendix A. Upgrading Niu3 Software

    Enter 7. A screen appears, stating that the NIU3 is waiting for download and the character C appears across the screen to show the unit is still active. With the mouse, click on , then click...
  • Page 26 This page intentionally blank. 61212075L2-5D...
  • Page 27: Ds3 Network Interface Unit Niu3 With Performance Monitoring

    DS3 Network Interface Unit NIU3 with Performance Monitoring Notes 61212075L2-5D...

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