Page 1
®
CONNECTING THE FUTURE
1
4
MON
OUT
IN
MON
OUT
IN
8
12
16
20
24
28
32
36
40
NE-2
NE-1
®
44
48
52
56
60
64
MON
OUT
IN
MON
OUT
IN
DIGITAL NETWORK INTERFACE-1B
USER MANUAL
108891
Issue A Rev 2
Page 2
Digital Network Interface 1-B User Manual
Document Number 108891
Issue A Rev 2
Copyright© Telect, Inc., 1998, All Rights Reserved.
Telect and Connecting the Future are registered trademarks of Telect, Inc., 2111 N. Molter Rd., Liberty Lake,
Washington 99019
Note:
Telect assumes no liability from the application or use of these products. Neither does Telect convey any license under its patent rights nor the patent rights of others. This document and the products described herein are subject to
change without notice.
ii
108891 Issue A Rev 2
Page 3
INSIDE OF BACK COVER
Page 4
Section 1 Descriptions
DNI-1B ........................................................................................1-1
Capabilities ............................................................................1-1
Features.................................................................................. 1-2
System-Level Applications.......................................................... 1-2
Main Assemblies.......................................................................... 1-2
Physical Specification.................................................................. 1-3
Section 2 Installation
Installation Considerations .......................................................... 2-1
Location and Space................................................................ 2-1
Tools and Equipment.............................................................2-3
Inspection..................................................................................... 2-3
Installation Procedure .................................................................. 2-4
Mounting the DNI-1B............................................................ 2-4
Cabling Procedure.................................................................. 2-4
Contents
Section 3 Electrical Operation
Section 4 User Functions
Patching ....................................................................................... 4-1
Loopback ..................................................................................... 4-2
Monitoring................................................................................... 4-2
Drop-And-Insert Test...................................................................4-3
Issue A Rev 2 108891 Telect, Inc.
iii
Page 5
Section 5 Service
Owner Maintenance.....................................................................5-1
In Case Of Difficulty ................................................................... 5-1
In-Warranty Service.....................................................................5-1
Out-Of-Warranty Service............................................................. 5-2
Repacking For Shipment ............................................................. 5-2
iv
Telect, Inc. 108891 Issue A Rev 2
Page 6
1 Descriptions
DNI-1B
Telect’s Bantam Digital Network Interface Panel—the DNI-1B, PN 0107128-5001 (128 circuit) and 010-7112-5001 (112 circuit)—is a central interface point for networks that connect DS-1 signals from digital crossconnect system (DCS) circuits to network element (NE) circuits. As an extension to the backplane of DCS equipment, the DNI-1B allows circuit
configuration changes, maintenance, and troubleshooting without disrupting DCS operation.
Capabilities
• High circuit densities
• Circuit migration, system expansion
• Compatibility with all E-1/T-1 signal types and system software
• Circuit patching, troubleshooting, and monitoring
• Installation verification
• Integrated cable management
Issue A Rev 2 108891 Telect, Inc.
1-1
Page 7
Descriptions DNI-1B User Manual
abe
Features
• DDJ™ tri-jacks for IN, OUT, and MON ports
• Each circuit has two tri-jacks—one for DCS (NE-1) and one for network element (NE-2) circuits
• Circuit designation labels
• Hinged designation holders
• Four wire-wrap termination points for both NE-1 and NE-2
• Two wire-management tie-down bars
SYSTEM-LEVEL APPLICATIONS
DNI-1B
MAIN ASSEMBLIES
The DNI-1B allows maximum circuit density in EIA and WECO racks/
bays. The 112-circuit version fits 19" (48.3 cm) racks/bays; the 128-circuit
version fits 23" (58.4 cm) racks/bays. There are 56 sets of rear termination
points in the 112-circuit version and 64 sets in the 128-circuit version.
Digital Switch
1:0 DCS
Office Repeater Bays
(ORBs)
Channel Banks
Loop Multiplexers
1
2
3
4
5
6
7
Front
8
Panel
9
10
11
12
13
14
15
16
DS-1
Cables
DS-3
Cable
3:1 DCS
DNI-3
14 8 12
MON
OUT
IN
MON
OUT
IN
®
SPOKANE, WA.
DS-1 Cables
Fiber Optic
Transmission System
(FOTS)
DDJ
Tri-Jack
1-2
L
lHolder
Telect, Inc. 108891 Issue A Rev 2
Page 8
DNI-1B User Manual Descriptions
®
SPOKANE, WA.
®
SPOKANE, WA.
PHYSICAL SPECIFICATION
NE-2
NE-1
OUT
OUT
Termination Point
64
T
R
T
IN
R
64
T
R
T
IN
R
60
60
56
56
52
52
48
48
Tie-Down Bar
15 lb
(6.8 kg)
Issue A Rev 2 108891 Telect, Inc.
1-3
Page 9
Page 10
2 Installation
INSTALLATION CONSIDERATIONS
Location and Space
DNI-1B mounts flush into both unequal flange and equal flange (EIA or
WECO) racks/bays—the 112-circuit version in 19" (48.3 cm) bays, the
128—circuit version in 23" (58.4 cm) bays. Rack configuration is limited
mainly by the number of cables a bay can accommodate. Telect recommends a maximum of 22 DNI-1B panels per bay:
• Allows easy access for maintenance.
• Keeps the panels within reach.
• Provides enough room for cable routing.
Here are the DNI-3 space requirements:
DCS
Terminations
128 112
1–64 1–56 1 8 2.48 2
65–128 57–112 2 16 4.96 4
129–192 113–168 3 24 7.44 6
193–256 169–224 4 32 9.92 8
257–320 225–280 5 40 12.40 10
321–384 281–336 6 48 14.88 12
385–448 337–392 7 56 17.36 14
449–512 393–448 8 64 19.84 16
513–576 449–504 9 72 22.32 18
577–640 505–560 10 80 24.80 20
Issue A Rev 2 108891 Telect, Inc.
Panels Total Cables
Cable Space
Needed per Side
of Bay (in.
2
)
EIA Bay Spaces
Required
2-1
Page 11
Installation DNI-1B User Manual
DCS
Terminations
Panels Total Cables
Cable Space
Needed per Side
of Bay (in.
2
)
EIA Bay Spaces
Required
128 112
641–704 561–616 11 88 27.28 22
705–768 617–672 12 96 29.76 24
769–832 673–728 13 104 32.24 26
833–896 729–784 14 112 34.72 28
897–960 785–840 15 120 37.20 30
961–1024 841–896 16 128 39.68 32
1025–1088 897–952 17 136 42.16 34
1089–1152 953–1008 18 144 44.64 36
1153–1216 1009–1064 19 152 47.12 38
1217–1280 1065–1120 20 160 49.60 40
1281–1344 1121–1176 21 168 52.08 42
1345–1408 1177–1232 22 176 54.56 44
1409–1472 1233–1288 24 184 57.04 46
1473–1536 1289–1344 24 192 59.52 48
1537–1600 1345–1400 25 200 62.00 50
1601–1664 1401–1456 26 208 64.48 52
1665–1728 1457–1512 27 216 66.96 54
1729–1792 1513–1568 28 224 69.44 56
1793–1856 1569–1624 29 232 71.92 58
1857–1920 1625–1680 30 240 74.40 60
1921–1984 1681–1736 31 248 76.88 62
1985–2048 1737–1792 32 256 79.36 64
2049–2112 1793–1848 33 264 81.84 66
2113–2176 1849–1904 34 272 84.32 68
2177–2240 1905–1960 35 280 86.80 70
2241–2304 1961–2016 36 288 89.28 72
2305–2368 2017–2072 37 296 91.76 74
2-2
In the above table, the first shaded row is the capacity for a 7-ft bay. The
second shaded row is the capacity for an 8-ft bay; the last shaded row is for
an 11.5-ft bay.
Telect, Inc. 108891 Issue A Rev 2
Page 12
DNI-1B User Manual Installation
Network Bay Extender Panel
Telect recommends network bay extender panels
for cable management—
two for each fully provisioned DNI-1B bay. The
extender provides 81
Extender
square inches (522.6
square cm) of routing
space (enough for 135
30-pair ABAM cables)
and 9 cable management
Cable
Management
Bracket
(Inside the
Extender)
brackets to secure and
channel the cables.
Tools and Equipment
INSPECTION
No special tools or equip-
Back View of
Network Bay
ment are required.
Compare the contents of the DNI-1B shipping container with the packing
list. Call Telect if you are missing anything.
NOTE
Telect is not liable for shipping damage.
If the shipping container is damaged, keep it for the carrier’s inspection.
Notify the carrier and call Telect’s Customer Service Department:
1-800-551-4567 or 1-509-926-6000
Keep the container until you have checked equipment operation. If you experience any kind of problem, call Telect’s Customer Service Department.
Use the original, undamaged container if you are instructed to return the
DNI-1B to Telect.
Issue A Rev 2 108891 Telect, Inc.
2-3
Page 13
Installation DNI-1B User Manual
INSTALLATION PROCEDURE
Mounting the DNI-1B
Step Action
1. Align the DNI-1B chassis mounting holes with the mounting holes
of the network bay/rack.
2. Install four mounting screws (two on each side) into the mounting
holes but do not completely tighten them.
3. Attach the hinged label holders to the
front of the panel.
a. Slip the eyehole in the center of the
holder over the head of the top
mounting screw.
b. Slide the holder down on the shaft of
c. Tighten both screws.
Cabling Procedure
Step Action
1. Route the DCS IN cables to one side of the network bay. Tie-wrap
the cables in place within the extender panel cable management
brackets.
2. Route the DCS OUT cables to the opposite side of the network bay;
tie-wrap them the same way.
3. Starting at the lowest DNI-1B panel in the bay/rack, lay the DCS IN
cables over the lower tie-down bar and connect them to the NE-1
IN termination points.
this screw so that the slot in the bottom fits over the shaft of the bottom
screw.
2-4
4. Secure the DCS IN cables to the tie-down bar.
5. Go to the next DNI1-B panel up and connect those DCS IN cables.
Continue the procedure, connecting all DCS IN cables.
Telect, Inc. 108891 Issue A Rev 2
Page 14
DNI-1B User Manual Installation
6. Repeat Steps 2–5 for the DCS OUT cables, connecting them to the
NE-1 OUT termination points.
7. Route the NE IN cables to the same side of the network bay as the
DCS IN cables and the NE OUT cables to the same side as the DCS
OUT cables. Ti e-wrap the cabl es in place with in th e ext ender panel
cable management brackets.
8. Repeat steps 2–6 for the NE cables, connecting the NE IN cables to
the NE-2 IN termination points and the NE OUT cables to the NE-2
OUT termination points.
9. Identify circuits on the designation labels.
Issue A Rev 2 108891 Telect, Inc.
2-5
Page 15
Page 16
3 Electrical Operation
DCS wires attach to the lower four wire-wrap termination points on the
rear of the DNI-1B panel (NE-1); the network element wires attach to the
upper four points (NE-2). OUT (transmit) circuits attach to the upper pair
of termination points; IN (receive) circuits attach to the lower pair.
Inside the DNI-1B, the DCS IN circuits are hard-wired to the NE OUT circuits and the NE IN circuits to the DCS OUT circuits (internal cross-connect, Tip-to-Tip and Ring-to-Ring):
T
Out
NE-2
(NE)
Termination Points
NE-1
(DCS)
R
T
R
In
T
Out
R
T
R
In
All internal connectionsare wired,
not just chassis
ground and the
terminationpoints.
Remaining Circuits Are Similarly Wired
DCS Out to NE In
Internal
CrossConnect
Cutaway Side View of DNI1-B
(Green Wire)
Resistors
Ground
M
O
N
N
E
O
2
U
T
I
N
M
O
N
N
E
O
1
U
T
I
N
Issue A Rev 2 108891 Telect, Inc.
3-1
Page 17
Electrical Operation DNI-1B User Manual
Inserting a Bantam plug into the jack does the following:
Plug Jack Function
Single
Dual Patch
NE-1 MON
NE-2 MON
NE-1 OUT/IN
NE-2 OUT/IN
Insulators
Tip
Ring
Accesses DCS OUT circuit
Accesses NE OUT circuit
Patches DCS or NE circuit
Patches DCS or NE circuit
Ground
Out
In
3-2
Telect, Inc. 108891 Issue A Rev 2
Page 18
4 User Functions
PATCHING
Step Action
1. Partially insert a dual Bantam patch-cord in the OUT and IN jacks
of the appropriate NE-2 circuit on the front of the DNI1-B panel:
OUT
Side View of
DNI1-B Panel
Curved Side
IN
2. Twist the plug on the other end of the cord so that its curved side is
in the opposite orientation—if the first plug’s curved side is up, the
second plug’s must be down. This is how you connect the IN of one
circuit to the OUT of another.
Issue A Rev 2 108891 Telect, Inc.
Out
In
Out
In
4-1
Page 19
User Functions DNI-1B User Manual
h
3. Partially insert the second plug in the OUT and IN jacks of the appropriate NE-1 circuit.
4. Simultaneously push both plugs fully into the jacks.
LOOPBACK
To temporarily loop an NE or DCS OUT port to its IN port, fully insert a
Bantam looping plug into the jacks of the appropriate circuit.
OUT
MONITORING
Side View of
DNI1-B Panel
IN
Signal Pat
You can monitor NE and DCS circuit outputs from the front of the DNI-1B
panel.
Fully insert a single Bantam patch-cord plug into the monitor jack of the
appropriate circuit. Insert the cord’s other plug into the test set you are using to monitor the circuit.
To Test
Set
Side View
of DNI1-B
4-2
MON
Telect, Inc. 108891 Issue A Rev 2
Page 20
DNI-1B User Manual User Functions
DROP-AND-INSERT TEST
Terminate a T-1 signal at the panel with a 100 ohm DNI-1B terminating
plug. Fully insert the plug into the jack of the appropriate NE-1 or NE-2
circuit.
Side View
of DNI1-B
Jack
Issue A Rev 2 108891 Telect, Inc.
4-3
Page 21
Page 22
5 Service
OWNER MAINTENANCE
Telect’s DNI-1B does not need preventive maintenance.
IN CASE OF DIFFICULTY
If problems occur after initial installation, check all cable connections and
the installation instructions in Section 2.
IN-WARRANTY SERVICE
Contact your Telect equipment distributor, or call a Telect Customer Service Representative:
1-800-551-4567
1-509-926-6000
Telect will repair or replace defective products within the limits of the warranty. See “Repacking for Shipment” in this section.
NOTE
Call a Customer Service Representative for a Return Material Authorization (RMA) before returning any equipment.
Issue A Rev 2 108891 Telect, Inc.
5-1
Page 23
Service DNI-1B User Manual
OUT-OF-WARRANTY SERVICE
The procedure for out-of-warranty service is the same as for in-warranty
service, except that Telect charges a processing fee, and you must s ubmit a
Purchase Order along with a Return Material Authorization (RMA) before
returning equipment. Call a Customer Service Representative for help getting these forms.
The processing fee guarantees a repair estimate and is credited against actual material and labor costs.
REPACKING FOR SHIPMENT
Step Action
1. Tag the equipment showing owner’s name, address, and telephone
number, together with a detailed description of the problem.
2. Use the original shipping container if possible. If you do not have
it, package the equipment in a way to prevent shipping damage. Include the RMA inside the container.
3. Insure the package.
NOTE
Telect is not liable for shipping damage.
5-2
Telect, Inc. 108891 Issue A Rev 2
Page 24
Telect, Inc.
2111 N. Molter Rd.
P.O. Box 665, Liberty Lake, WA 99019
509-926-6000, 800-551-4567, Fax 509-926-8915
E-mail: [email protected] Internet: http://www.telect.com
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