®
®
CONNECTING THE FUTURE
1
4
MON
OUT
8
12
16
IN
20
24
28
32
36
40
MON
OUT
44
IN
48
52
NE-2
NE-1
56
60
64
MON
OUT
IN
MON
OUT
IN
DIGITAL NETWORK INTERFACE-1B
USER MANUAL
108891
Issue A Rev 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 un-
der 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
Contents
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
Section 3 Electrical Operation
Section 4 User Functions
Patching ....................................................................................... 4-1
Loopback ..................................................................................... 4-2
Monitoring ................................................................................... 4-2
Drop-And-Insert Test................................................................... 4-3
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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
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Telect, Inc.
108891
Issue A Rev 2
1 Descriptions
DNI-1B
Telect’s Bantam Digital Network Interface Panel—the DNI-1B, PN 010-
7128-5001 (128 circuit) and 010-7112-5001 (112 circuit)—is a central in-
terface point for networks that connect DS-1 signals from digital cross-
connect system (DCS) circuits to network element (NE) circuits. As an ex-
tension to the backplane of DCS equipment, the DNI-1B allows circuit
configuration changes, maintenance, and troubleshooting without disrupt-
ing 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
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1-1
Descriptions
DNI-1B User Manual
Features
•
•
DDJ™ tri-jacks for IN, OUT, and MON ports
Each circuit has two tri-jacks—one for DCS (NE-1) and one for net-
work 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
Digital Switch
1:0 DCS
Office Repeater Bays
(ORBs)
DS-1
Cables
DS-1 Cables
3:1 DCS
DS-3
Cable
Channel Banks
Fiber Optic
Transmission System
(FOTS)
DNI-3
Loop Multiplexers
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.
1
4
8
12
MON
1
2
DDJ
Tri-Jack
3
OUT
IN
4
5
6
7
Front
Panel
®
8
SPOKANE, WA.
9
10
11
12
13
14
15
16
MON
OUT
IN
Label
Holder
1-2
Telect, Inc.
108891
Issue A Rev 2
DNI-1B User Manual
Descriptions
Termination Point
®
64
60
56
52
48
SPOKANE, WA.
T
R
T
R
OUT
IN
NE-2
®
64
60
56
52
48
SPOKANE, WA.
T
R
T
R
OUT
IN
NE-1
Tie-Down Bar
PHYSICAL SPECIFICATION
15 lb
(6.8 kg)
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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 recom-
mends 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:
Cable Space
Needed per Side
of Bay (in.2)
DCS
Terminations
EIA Bay Spaces
Required
Panels Total Cables
128
112
1–64
1–56
1
2
8
2.48
4.96
2
65–128
57–112
16
24
32
40
48
56
64
72
80
4
129–192
193–256
257–320
321–384
385–448
449–512
513–576
577–640
113–168
169–224
225–280
281–336
337–392
393–448
449–504
505–560
3
7.44
6
4
9.92
8
5
12.40
14.88
17.36
19.84
22.32
24.80
10
12
14
16
18
20
6
7
8
9
10
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2-1
Installation
DNI-1B User Manual
Cable Space
Needed per Side
DCS
Terminations
EIA Bay Spaces
Required
Panels Total Cables
of Bay (in.2)
128
112
641–704
705–768
769–832
833–896
897–960
961–1024
1025–1088
561–616
617–672
673–728
729–784
785–840
841–896
897–952
11
12
13
14
15
16
17
18
19
20
21
22
24
24
25
26
27
28
29
30
31
32
33
34
35
36
37
88
27.28
29.76
32.24
34.72
37.20
39.68
42.16
44.64
47.12
49.60
52.08
54.56
57.04
59.52
62.00
64.48
66.96
69.44
71.92
74.40
76.88
79.36
81.84
84.32
86.80
89.28
91.76
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
96
104
112
120
128
136
144
152
160
168
176
184
192
200
208
216
224
232
240
248
256
264
272
280
288
296
1089–1152 953–1008
1153–1216 1009–1064
1217–1280 1065–1120
1281–1344 1121–1176
1345–1408 1177–1232
1409–1472 1233–1288
1473–1536 1289–1344
1537–1600 1345–1400
1601–1664 1401–1456
1665–1728 1457–1512
1729–1792 1513–1568
1793–1856 1569–1624
1857–1920 1625–1680
1921–1984 1681–1736
1985–2048 1737–1792
2049–2112 1793–1848
2113–2176 1849–1904
2177–2240 1905–1960
2241–2304 1961–2016
2305–2368 2017–2072
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.
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108891
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DNI-1B User Manual
Installation
Network Bay Extender Panel
Telect recommends net-
work bay extender panels
for cable management—
two for each fully provi-
sioned DNI-1B bay. The
extender provides 81
square inches (522.6
square cm) of routing
space (enough for 135
Extender
Cable
Management
Bracket
(Inside the
Extender)
30-pair ABAM cables)
and 9 cable management
brackets to secure and
channel the cables.
Tools and Equipment
Back View of
Network Bay
No special tools or equip-
ment are required.
INSPECTION
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 ex-
perience 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.
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2-3
Installation
DNI-1B User Manual
INSTALLATION PROCEDURE
Mounting the DNI-1B
Step Action
1.
2.
3.
Align the DNI-1B chassis mounting holes with the mounting holes
of the network bay/rack.
Install four mounting screws (two on each side) into the mounting
holes but do not completely tighten them.
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
this screw so that the slot in the bot-
tom fits over the shaft of the bottom
screw.
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.
3.
Route the DCS OUT cables to the opposite side of the network bay;
tie-wrap them the same way.
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.
4.
5.
Secure the DCS IN cables to the tie-down bar.
Go to the next DNI1-B panel up and connect those DCS IN cables.
Continue the procedure, connecting all DCS IN cables.
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108891
Issue A Rev 2
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. Tie-wrap the cables in place within the extender panel
cable management brackets.
8.
9.
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.
Identify circuits on the designation labels.
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Telect, Inc.
2-5
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 cir-
cuits and the NE IN circuits to the DCS OUT circuits (internal cross-con-
nect, Tip-to-Tip and Ring-to-Ring):
DCS Out to NE In
Remaining Circuits Are Similarly Wired
T
M
O
Out
In
R
T
N
NE-2
(NE)
N
E
2
O
U
T
R
I
N
Ground
(Green Wire)
Termination Points
T
Internal
Cross-
Connect
M
O
N
Out
R
NE-1
(DCS)
T
N
E
1
Resistors
R
In
O
U
T
I
N
All internal con-
nections are wired,
not just chassis
ground and the
termination points.
Cutaway Side View of DNI1-B
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Telect, Inc.
3-1
Electrical Operation
DNI-1B User Manual
Inserting a Bantam plug into the jack does the following:
Plug
Single
Jack
Function
NE-1 MON
NE-2 MON
Accesses DCS OUT circuit
Accesses NE OUT circuit
Dual Patch
NE-1 OUT/IN Patches DCS or NE circuit
NE-2 OUT/IN Patches DCS or NE circuit
Insulators
Ground
Out
Tip
Ring
In
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Telect, Inc.
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Issue A Rev 2
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.
Out
In
Out
In
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Telect, Inc.
4-1
User Functions
DNI-1B User Manual
3.
4.
Partially insert the second plug in the OUT and IN jacks of the ap-
propriate NE-1 circuit.
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
Side View of
Signal Path
DNI1-B Panel
IN
MONITORING
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 us-
ing to monitor the circuit.
To Test
Set
Side View
of DNI1-B
MON
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Issue A Rev 2
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
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Telect, Inc.
4-3
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 Ser-
vice Representative:
1-800-551-4567
1-509-926-6000
Telect will repair or replace defective products within the limits of the war-
ranty. See “Repacking for Shipment” in this section.
NOTE
Call a Customer Service Representative for a Return Material Authoriza-
tion (RMA) before returning any equipment.
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5-1
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 submit a
Purchase Order along with a Return Material Authorization (RMA) before
returning equipment. Call a Customer Service Representative for help get-
ting these forms.
The processing fee guarantees a repair estimate and is credited against ac-
tual 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. In-
clude the RMA inside the container.
3.
Insure the package.
NOTE
Telect is not liable for shipping damage.
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108891
Issue A Rev 2
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