DS3 Network Interface Unit with Performance Monitoring
CONTENTS
1. General .................................................................... 1
2. Installation............................................................... 3
3. Turnup ..................................................................... 5
4. Operation................................................................. 6
5. Testing................................................................... 26
6. Maintenance .......................................................... 28
NTWK LBK Active.................................... 15
tern Active................................................... 16
61213075L2-5E
®
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: NCD3EG6A_ _
TABLES
Table 1. Compliance Codes ........................................ 3
Table 2. LED Indications ............................................ 5
Table 3. Fault Conditions ............................................ 7
Table 4. Definition of Screen Abbreviations .............. 8
Table 5. Software Upgrade Procedure ...................... 25
Table 6. Specifications and Compliance ................... 29
NIU3
1213075
STATUS
LOS = RED
AIS =AMBER
-BIT = GRN
IDLE =AMBER
M13 = GRN
IDLE =AMBER
LBK
LOS = RED
AIS =AMBER
-BIT
M13
LBK
FUSE ALARM
Figure 1. NIU3 PM
1. GENERAL
The ADTRAN
DS3 Network Interface Unit with
®
Performance Monitoring (NIU3 PM) provides a demar-
cation 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 NIU3 PM
provides troubleshooting suggestions, performance
monitoring and event history information through an
RS-232 craft interface. The NIU3 PM is transparent to
data transmission during normal operation.
shows the front panel of the NIU3 PM, P/N 1213075L2.
Section 61213075L2-5E
Issue 5, February 2011
N
T
W
K
U
S
T
LBK SEL:
NTWK: 1X & HOLD
UST: 2X & HOLD
DUAL: 3X & HOLD
UST TO NTWK
MON
NTWK TO UST
MON
Figure 1
1