Neutrik NPPA-TT-SD50 User Manual

INSTRUCTION MANUAL

NPPA-TT-SD50

PATCH PANEL “Easy Patch” | 96 Bantam (TT) Jacks, 50 pin
D-subminiature

NEUTRIK AG NEUTRIK Zürich AG NEUTRIK (UK) Ltd. NEUTRIK USA INC. NEUTRIK Tokyo Ltd. NEUTRIK France NEUTRIK Vertriebs GmbH

Liechtenstein Switzerland Great Britain USA Japan France Germany/Netherlands/Austria

Tel.: [phone] Tel.: [phone] Tel.: [phone] Tel.: [phone] Tel.: [phone] Tel.: [phone] Tel.: [phone]
Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone]
www.neutrik.com

Draft. Nr.: BDA82-0
Update: 16.01.2009

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

NPPA-TT-SD50 Instruction Manual

Index

1. Electrical configuration.................................................................................................3

2. Replacement of Jack Pairs..........................................................................................4

3. Reconfiguration by hand..............................................................................................5

4. Grounding variations ...................................................................................................7

5. Wiring ..........................................................................................................................9

6. Cable retention to the unit..........................................................................................10

7. Channel identification ................................................................................................10

8. Technical data ...........................................................................................................12

9. Wiring Diagram..........................................................................................................13

10. Ordering Information................................................................................................14

Dimensional Drawing NPPA-TT-SD50

Front panel

Cable retention bar

Top cover

Page 2 of 14

NPPA-TT-SD50 Instruction Manual

1. Electrical configuration

The Neutrik ”Easy Patch” is fitted with high quality, long life NJ3TTA double contact jacks (2 x

48) with drastically improved contact integrity. The NJ3TTA double contact jacks are gold plated
and prewired. The Neutrik ”Easy Patch” is an innovative and compact patching system (just 1 U
high) for 19” rack mounting. Robustly housed in black coated steel casing and featuring
precision aluminum fittings it is built to last. The Neutrik ”Easy Patch” is suitable for analog and
digital audio signals.

The new generation of the Neutrik ”Easy Patch” is easily programmable for any out of five
electrical configurations:

• half normalled bottom row

• half normalled top row

• full normalled

• parallel

• isolated

The programming feature allows to set all possible switching configurations inside the jack pair
with a specially designed mechanism and individually for each channel.

Configuration Chart

The standard configuration on ”Easy Patch” NPPA-TT-SD50 is half normalled bottom row.
Modules NJ3TTA-4-.x. consisting of two “Plug-in Units” (or four jacks NJ3TTA) with
prefabricated normalling are also available.

Page 3 of 14

NPPA-TT-SD50 Instruction Manual

2. Replacement of Jack Pairs

Each individual jack pair can be exchanged or re-configured without fuss even while the unit is
“on air”. For replacement or re-configuration just remove the easy accessible module consisting
of two “Plug-in Units”.

Module consisting of 2 Jack Pairs

Remove Front Panel by unscrewing the 3 black cross-recessed
screws (M3x8 Taptite), remove the two side-stops.

Push out the channel identification strips.

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

Page 4 of 14

NPPA-TT-SD50 Instruction Manual

Alternatively 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 side with
the mark outside and readable.

To complete, push the new jack pairs into the casing again with the mark on the left side (If
more than one module are removed always assemble from the center to the right or left side
and be careful that the keys on the left side of the jack pairs find their guiding slots. If all jack
pairs are removed start at the casing support in the center and assemble to the right and left
side). Slide in again the channel identification strips (best from the outside inwards) and fix the
front panel with the black cross-recessed screws. Don’t forget to insert the side-stops before
fixing the screws (see page 10).

3. Reconfiguration by hand

For easy and safe modification work we recommend our preconfigured jack pairs (NJ3TTA-4-*).
Please note, in case of emergency the normalling can by changed by hand by the use of
normalling bars.

The two jack pairs are separated by spreading apart the rear
parts to unlock the fixing mechanism till it is possible...

Page 5 of 14