ADTRAN NIU3 - Manual

For more information, refer to the Installation and Maintenance Practice (P/N 61212078L1-5) available online at www.adtran.com .
GENERAL
This job aid is used in association with the ADTRAN ® DS3 NIU3 module job aid (P/N 61213075L2-22). The NIU3
12-Slot Housing is an all-metal construction unit that has slots for 12 NIU3 modules. Guide grooves direct the card
to the backplane edge connector. When properly inserted, recessed screws on the NIU3 front panel align and fasten
to threaded holes recessed on the shelf interior. The backplane circuit board is protected by a metal cover that has
openings for BNC data jacks, pass-through relays, power terminal connections, and alarm pins. A cable
management bar and wire tie-down anchor points complete the backplane assembly. All connections are clearly
labeled. The pass-through relays, alarm relay, alarm wire-wrap pins, and power terminals are protected by
removable security covers or safety shields.
INSTALLATION AND LOCATION
After unpacking the unit, inspect it for damage. If damage is noted, file a claim with the carrier, then notify
ADTRAN. For more information, refer to
Warranty on the reverse page.
The NIU3 12-Slot Housing installs at any location convenient to the customer as a demarcation and loopback point
for DS3 circuits.
NOTE: The NIU3 can pass both network and customer signals up to 900 feet. During NIU3 bypass operations,
if total transmission distance exceeds 900 feet, signal quality may degrade. For more information, refer
to the
Circuit Diagram on reverse side.
Rackmount
NOTE: Install the unit per NEC NFPA 70 requirements. For more information, refer to the Compliance
section.
The NIU3 12-Slot Housing can be rack mounted at any convenient location. Reversible mounting flanges adjust to
desired position in the 19-inch rack (23-inch mounting flanges also included). To rackmount the NIU3 12-Slot
Housing:
1. Determine desired shelf extension from the bay.
2. Position the mounting flanges as necessary, using the appropriate flanges for a 19-inch or 23-inch rack. Install
using supplied counter-sink screws.
3. Install cable management bar to the rear cover of the shelf using supplied pan-head screws.
4. Mount the shelf to the rack accordingly.
DS3 NIU3 12-Slot Housing
CLEI: NCM59Z0D_ _ P/N: 1212078L1
DS3 NIU3 12-Slot Housing
Wallmount
Two wallmount brackets are available from ADTRAN to allow the chassis to be mounted to a wall:
♦ Swingarm Bracket (P/N 61212078L1WM) - Packaged with six ¼ × ¾-inch hex-head screws and flat washers,
provides a swingarm bracket for easy access to front and rear panels. In this configuration, the original flanges
are removed, and the wallmount flanges are installed using the countersink screws from the originals. Install the
chassis so the front panels of the circuit modules face outward on the front.
A 2-foot, 16 AWG ground wire is also provided to be installed between the ground termination on the bracket
and the ground termination on the housing. This allows the chassis to rotate without disturbing the main ground
wire leaving the bracket.
CAUTION: When rotating the chassis, always do so with care to ensure that all wiring and connections are
protected.
♦ Vertical Mounting Bracket (P/N 61212078L1WMB) - Packaged with two L-Brackets and four ¼ by 1¾-inch hex-
head screws, provides a vertical mount with the chassis-top toward the wall and the modules to the side.
CAUTION: There are 24 removable bypass relays and 1 removable alarm relay located on the rear of the
housing. After installation, remove the bypass relay cover and alarm relay cover and ensure that
the relays are properly and firmly seated in their sockets. Replace the relay covers.
Wiring
Wiring consists of three elements: data, power, and alarms.
NOTE: Use suitably-sized copper conductors only.
Data
Externally, the NIU3 12-Slot Housing backplane has four BNC connectors for each of the twelve NIU3 slots,
labeled
NETWORK IN / OUT and CUSTOMER IN / OUT . A cable management bar provides for tie-wrapping cables. To
connect the NIU3 12-Slot Housing to the data network:
1. Connect the cables to the BNC connectors on the backplane for those shelf slots that will be populated.
2. If not already done, connect the opposite ends to their designated terminations.
3. Dress and lace the wire runs to the cable management bars and rack frames as necessary.
Power
Fully populated, the NIU3 12-Slot Housing operates on local –48 VDC at 1.5 amps maximum or ±24 VDC at 3
amps maximum. The housing backplane has spade lug terminal connections (
TB1 ) for both an “A-side” and “B-
side” independent DC source, plus a common frame ground. A diode arrangement adds reliability by allowing both
DC supplies to load-share with one side picking up the entire load should the other side fail. Refer to the
Compliance section note for requirements. To connect power to the NIU3 12-Slot
Housing:
WARNING: Ensure power is off at the source before making wiring connections.
1. Connect –48 VDC or ±24 VDC supply to PWR A .
2. Connect –48 VDC or ±24 VDC return to RET A .
3. If redundant power is intended, make similar connections to PWR B and RET B .
CAUTION: Terminate grounds to an approved ground location. Check metal-to-
metal contact on all ground connections to ensure ground circuit
continuity.
4. Connect the common frame ground terminal or ground lug (6 AWG maximum) to
an approved ground location.
CAUTION: Per GR-1089-CORE, October 2002, Section 9, this system is designed
and intended for installation in a DC-C (common) bonding and
grounding system only. It is not intended or designed for installation
in a DC-I (isolated) bonding and grounding system.
61212078L1-22F
0408
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
1 2 3 4 5 6 7 8 9 10 11 12
1212078L1
N I U 3
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
LBK SEL: NTWK: 1X & HOLD
CUST: 2X & HOLD
DUAL: 3X & HOLD
NTWK MON
N
T
W
K
C
U
S
T
NIU3 1212075
CUST MON
STATUS
LOS = RED
AIS = AMBER
C-BIT = GRN
IDLE = AMBER
M13 = GRN
IDLE = AMBER
LBK
LOS = RED AIS = AMBER
C-BIT
M13
LBK
R S 2 3 2
FUSE ALARM
ESD
PWR A
A RETURN
A SUPPLY
B SUPPLY
B RETURN
FRAME
GROUND
TB1
RET A
PWR B
RET B
#61212078L1-22F#