INSTRUCTION MANUAL
NPPA-TT-IDC
PATCH PANEL “Easy Patch” | 96 Bantam (TT) Jacks,
IDC Termination

NEUTRIK AGNEUTRIK Zürich AG
Liechtenstein
Switzerland
Tel.: +423/237 24 24 Tel.: +41 44/736 5010
Fax: +423/232 53 93 Fax: +41 44/736 5011
www.neutrik.com
Draft. Nr.:
Update:NEUTRIK (UK) Ltd.
NEUTRIK USA INC.
Great Britain
USA
Tel.: +44 1983/811 441 Tel.: +1 732/901 9488
Fax: +44 1983/811 439 Fax: +1 732/901 9608

BDA98-1/ 3102M0881
03.08.2009

Data subject to change without prior notice. ©2007 NEUTRIK . ALL RIGHTS RESERVED.

NEUTRIK Tokyo Ltd.
Japan
Tel.: +81 3/3663 4733
Fax: +81 3/3663 4796

NEUTRIK France
NEUTRIK Vertriebs GmbHFrance
Germany/Netherlands/Austria
Tel.: +33 1/4131 6750 Tel.: +49 8131/28 08 90
Fax: +33 1/4131 0511 Fax: +49 8131/28 08-30

NPPA-TT-IDC Instruction ManualIndex

1. Electrical configuration ............................................................................................3
2. Grounding variations ................................................................................................4
3. Wiring .........................................................................................................................5
4. Cable retention ..........................................................................................................7
5. Channel identification ...............................................................................................7
6. Replacement ..............................................................................................................97. Technical data .........................................................................................................11
8. Content of supply....................................................................................................11

Dimensional Drawings “Easy Patch” NPPA-TT-IDC

Front panel

Cable retention bar

Top coverPage 2 of 11

NPPA-TT-IDC Instruction Manual

1. Electrical configuration
The Neutrik ”Easy Patch” Patch Panel is fitted with high quality, long life NJ3TTA gold plated
double contact jacks (2 x 48). This Patch Panel is an innovative and compact patching system(just 1 U high) for 19” rack mounting. Robustly housed in black coated steel shell and featuring
precision aluminum fittings it is built to last. The Neutrik "Easy Patch” is suitable for analog anddigital audio signals.
The ”Easy Patch” is available in five normalling configurations (fully loaded).
• half normalled bottom row• half normalled top row• full normalled• parallel• isolated
The programming feature allows to set all possible switching configurations very easy withjumpers on the print and individually for each channel.

Configuration Chart

The standard configuration of the NPPA-TT-IDC is half normalled bottom row.

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NPPA-TT-IDC Instruction Manual

2. Grounding variations
The flexible grounding system provides the following versions.
Individual:

Each channel ground (“S” terminal) is connected to the dedicated ground
conductor (drain wire) of the incoming cable shield, no connection between thesolder pads. This is the standard configuration.

Central:All channel grounds (individual Top and Bottom row) are connected via the Topand Bottom PCB bus by connecting the solder pads. The connection between
Top and Bottom bus is made by jumpers.

ChassisCommon:The same as Central but with jumpers connecting the Top and Bottom row bus tothe chassis flat tab which is connected to chassis via ground cable.

Solder Pats

Jumpers

Symbolic of Jumper configurations
NOTE: In standard configuration there is noground connection between top and bottom
row unless it is provided by an inserted patchcable. If this is required, as in the case ofphantom powered microphone lines, make theconnection via patch cable or by thenormalling feature.

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NPPA-TT-IDC Instruction Manual

3. Wiring
For access to the terminals remove the top cover with three cross-recessed screws(M2.5x8mm).

IDC-terminals with gas tight connection enable fast and easy wiring. No soldering or fixing withscrews is necessary. For wiring please use the original LSA-tool from Krone (Product Nr.:6417/1/810).

Krone LSA - tool

Assembly
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NPPA-TT-IDC Instruction Manual

Color coding of terminals:
white-

sleeve (shield)

red-tip (Signal +)black-ring (Signal -)The terminal handles solid cables AWG 26 to 20.
Wire (conductor) diameter≥ 0.40 mm ≤ 0.65 mm
≥ 0.65 mm ≤ 0.90 mm

Wires per slot
2
1When using wire in the range of 0.4 to 0.65mm diameter, the modules allow up to two identicalwires of the same diameter to be terminated in one contact. It is not possible to use 2 wires ofdiffering diameter.
Terminations with stranded wire range
No of strands
77Diameter of each wire strand
0.15 mm (AWG 34)
0.20 mm (AWG 32)

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Nominal insulated diameter1.10 mm1.20 mm

NPPA-TT-IDC Instruction Manual

4. Cable retention
The built in cable retention bar is at the back at the casing. Simply attach the cables with cableties to the bar as shown on the photo.
For large and heavy bundles there is an additional strain relief bar NPPA-S available. It is
attached to the casing with four screws.

5. Channel identification
The front panel is equipped with channel identification strips located in the center of thechannels and marked with the channel numbers 1-24 and 25-48 respectively.

Channel identification strips

Labeling strips

For the perfect management of the system and for individual identification according tocustomer’s needs there are two large and separate labeling strips, one for the bottom and one
for the top row.
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NPPA-TT-IDC Instruction Manual

To write on the paper you have to unscrew one of the outer fixing screws of the front panel.
Then pull out the side-stop, the transparent foil and the paper strip itself.
After marking is done assemble the parts in reversed sequence.

Remove labeling strip

Side Stop

NOTE: For easy and perfect marking you can use our designation software “PatchLabel”
which is available on our web site www.neutrik.com free of charge.

Print-Out software “Patch Label”

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NPPA-TT-IDC Instruction Manual

6. Replacement of Jack Pairs
Each individual jack pair can be exchanged quickly and without fuss even while the panel is "onair". For replacement simply remove the easy accessible jack pairs.

Module consisting of 2 Jack Pairs

Remove Front Panel by unscrewing the 3 black crossrecessed screws (M3x8 Taptite), remove the two sidestops.

Push out the channel identification strips.

Pull one module out of the casing using the supplied
disassembling pliers

Page 9 of 11

NPPA-TT-IDC Instruction ManualAlternatively the jack pairs may be pulled out by the use of
two Bantam plugs (diagonally plugged in).

The two jack pairs have to be re-assembled in the right way
so that the thicker body marked “left” is put on the left sidewith the mark outside and readable.

To complete, push the new jack pairs into the casing again with the mark on the left side (Ifmore than one module are removed always assemble from the center to the right or left sideand be careful that the keys on the left side of the jack pairs find their guiding slots. If all jackpairs are removed start at the casing support in the center and assemble to the right and leftside). Slide in again the channel identification strips (best from the outside inwards) and fix thefront panel with the black cross-recessed screws. Don’t forget to insert the side-stops before
fixing the screws.

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NPPA-TT-IDC Instruction Manual

7. Technical Data
7.1 ElectricalFrequency range:
Digital suitability:
Channel separation:
Insulation resistance:
Connector contact resistance:
Switch contact resistance:
Dielectric strength:

DC > 50 MHz
Digital audio acc. to AES/EBU> 100 dB @ 10 kHz, 600 Ω terminated> 40 dB @ 6 MHz, 110 Ω terminated> 109 Ω @ 500 V dc
< 20 mΩ< 25 mΩ1000 V dc

7.2 Mechanical
Lifetime:
Insertion / Withdrawal force:
Cable retention force:
Dimensions (rack mount):
Depth:
Weight:Temperature range:> 5.000 Insertion / withdrawal cycles< 10 N / > 8 N
70 N max per cable retention bar
482 mm (W) × 44 mm (H) (19” × 1 U)
250 mm (9.85”)
2.6 kg-30°C to +80°C

7.3 Materials
Jack housing:Jack contacts:
Casing:Front Panel:

PA 66 blend
CuSn6 – TRIBOR® plated (0.2 µm AuCo over 2 µm NiP)
Steel and aluminum, black coated
AlMgSi 0.5 F22

8. Content of supply
8.1 Standard supply
The compact Neutrik "Easy Patch" NPPA-TT-IDC consists of:••
•
•
•
•
•

Black coated steel casing with aluminum fittings
2 x 48 highly integrated NEUTRIK NJ3TTA jacks with gold plated double contacts andspecially designed normalling mechanism (standard: half normalled bottom row)
Integrated internal pre-wiring with jumpers on print
48 KRONE IDC terminals 6-pole
Chassis integrated cable retention
1 Disassembling pliers
1 Instruction Manual

8.2
Replacement
NJ3TTA-4-I
blocks of 2 channels; isolated; cover identification color: orange
NKTT0xPatch cable (available in different lengths and colors)
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