Series 180
Das Neumann
Die Zuordnung der Mikrophonanschlüsse und die Polarität der Modulationsadern ist am Ausgang des Speisegerätes die gleiche wie am Mikrophon.
Das Netzgerät N 248 versorgt ein oder zwei Mikro- phone mit 48
Das Gerät ist in drei Ausführungen erhältlich:
N 248 EU | sw |
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N 248 US | sw | |
N 248 UK | sw |
2.3 Batteriespeisung
Steht keine Netzspannung zur Verfügung, kann die Speisung mit einem der Geräte
BS 48 i | |
(für ein Mikrophon) |
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BS 48 | |
(für zwei Mikrophone) |
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erfolgen. Beide Geräte liefern 48 V ± 1 V, maximal je 5 mA, und werden jeweils von einer 9 Volt- Blockbatterie Typ IEC 6 F 22 gespeist.
Das Gerät BS 48
Ein „Series
Die Zuordnung der Mikrophonanschlüsse und die Polarität der Modulationsadern ist am Ausgang der Speisegeräte die gleiche wie am Mikrophon.
2.4Betrieb an unsymmetrischen oder mittengeerdeten Eingängen
Die 48
The Neumann P48 power supply unit bears the designation N 248. It is designed to power two mono condenser microphones or one stereo micro- phone at 48 V ± 1 V, max. 2 x 6 mA (see also Neu- mann bulletin no. 68832: ”Phantom 48 VDC Pow- er Supplies“).
The assignment of the microphone terminals and the modulation polarity at the power supply out- put are identical to those at the microphone.
The N 248 supplies one stereo microphone, or two mono condenser microphones with 48 V phantom power (P48). All connectors are of XLR 3 type. The audio signal outputs are
Three versions are available:
N 248 EU | blk | Cat. No. 08537 |
N 248 US | blk | Cat. No. 08538 |
N 248 UK | blk | Cat. No. 08539 |
2.3 Battery Powering
If a mains power source is not available, power can be supplied by one of the battery units
BS 48 i | Cat. No. 06494 |
(for one microphone) |
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BS 48 | Cat. No. 06496 |
(for two microphones) |
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Both units deliver 48 V ± 1 V, at 5 mA maximum, and are powered by a
The BS 48
A „Series 180“ miniature microphone can be op- erated for at least 20 hours on a BS 48 i. (See Neumann bulletin 68832... “Phantom 48 VDC Pow- er Supplies”.)
The assignment of the microphone terminals and the modulation polarity at the power supply out- put are identical to those at the microphone.
2.4Operation with Unbalanced or Center Tap Grounded lnputs
The BS 48 i, BS 48
Bei den Mikrophonen ist Pin 2 normgemäß die |
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| In the microphones pin 2 is the “hot phase“, in ac- | |||||||||||||||||||||||
„heiße Phase“. Für unsymmetrische Eingänge muss |
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| cordance with the standard, and pin 3 of the out- | |||||||||||||||||||||||
PIN 3 am Ausgang des Speisegerätes an Masse |
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| put of the power supply must be connected to | |||||||||||||||||||||||
gelegt werden (siehe Abbildung 1). |
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| earth (see Fig. 1). | ||||||||||||||||||
Bei vielen anderen als den o.g. Phantomspeisege- |
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| In the case of many other phantom powering units | |||||||||||||||||||||||
räten liegen nicht nur die Modulationsleitungen |
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| (except those mentioned above), not only the mod- | |||||||||||||||||||||||
zum Mikrophon auf dem Potential der Speisespan- |
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| ulation leads to the microphone, but also the out- | |||||||||||||||||||||||
nung von +48 V, sondern auch die vom Speisege- |
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| going modulation leads from the powering unit, | |||||||||||||||||||||||
rät abgehenden Modulationsleitungen. Für die in |
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| are at the potential of the feed voltage (+48 V). | |||||||||||||||||||||||
der Studiotechnik allgemein üblichen symmetri- |
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| This is of no significance for the balanced, float- | |||||||||||||||||||||||
schen und erdfreien Verstärker und Mischpultein- |
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| ing amplifier and mixing console inputs in gener- | |||||||||||||||||||||||
gänge ist dies ohne Bedeutung. Dagegen wird die |
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| al studio use. On the other hand, the feed voltage | |||||||||||||||||||||||
Speisespannung beim Anschluss an einseitig oder |
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| will be | |||||||||||||||||||||||
mittengeerdete Verstärkereingänge kurzgeschlos- |
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| ended or center tap grounded amplifier inputs, and | |||||||||||||||||||||||
sen, und es ist kein Betrieb möglich. Dann beste- |
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| no operation will be possible. This can be circum- | |||||||||||||||||||||||
hen folgende Lösungsmöglichkeiten: |
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| vented as follows: | ||||||||||||||||||
a) In mittengeerdeten Geräten mit Eingangs- |
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| a) In center tap grounded equipment with input | |||||||||||||||||||||||
übertrager (z.B. einige |
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| transformer (e.g. some NAGRA units), the earth | |||||||||||||||||||||||
betreffende Erdverbindung fast immer ohne Nach- |
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| lead can almost always be disconnected without | |||||||||||||||||||||||
teile für die Funktion des |
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| affecting the function of | ||||||||
Gerätes aufgetrennt wer- |
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| the equipment. | ||||||||
den. |
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| b) In every outgoing |
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b) In | jede | abgehende |
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| modulation lead, an RC | ||||||
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Modulationsleitung kann |
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zur Abblockung der 48 V- |
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| rated to block the 48 Vdc | ||||||||
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Gleichspannung eine RC- |
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| voltage (See Figure 2 and | ||||||||
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Kombination | eingefügt |
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werden | (siehe Abbil- |
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| Abbildung / Figure 1 | 84 222). | ||||||||||||||||||||
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dung 2 und |
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formation Nr. 84 221). |
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Abbildung / Figure 2
4 | 5 |